diff options
Diffstat (limited to 'libre/linux-libre-lts/patch-4.4-gnu-4.4.7-gnu.patch')
| -rw-r--r-- | libre/linux-libre-lts/patch-4.4-gnu-4.4.7-gnu.patch | 37457 |
1 files changed, 37457 insertions, 0 deletions
diff --git a/libre/linux-libre-lts/patch-4.4-gnu-4.4.7-gnu.patch b/libre/linux-libre-lts/patch-4.4-gnu-4.4.7-gnu.patch new file mode 100644 index 000000000..014dfa298 --- /dev/null +++ b/libre/linux-libre-lts/patch-4.4-gnu-4.4.7-gnu.patch @@ -0,0 +1,37457 @@ +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/bitops.h linux-libre-4.4.7-gnu/arch/arc/include/asm/bitops.h +--- linux-libre-4.4-gnu/arch/arc/include/asm/bitops.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arc/include/asm/bitops.h 2016-04-12 12:09:26.000000000 -0400 +@@ -35,21 +35,6 @@ static inline void op##_bit(unsigned lon + \ + m += nr >> 5; \ + \ +- /* \ +- * ARC ISA micro-optimization: \ +- * \ +- * Instructions dealing with bitpos only consider lower 5 bits \ +- * e.g (x << 33) is handled like (x << 1) by ASL instruction \ +- * (mem pointer still needs adjustment to point to next word) \ +- * \ +- * Hence the masking to clamp @nr arg can be elided in general. \ +- * \ +- * However if @nr is a constant (above assumed in a register), \ +- * and greater than 31, gcc can optimize away (x << 33) to 0, \ +- * as overflow, given the 32-bit ISA. Thus masking needs to be \ +- * done for const @nr, but no code is generated due to gcc \ +- * const prop. \ +- */ \ + nr &= 0x1f; \ + \ + __asm__ __volatile__( \ +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/io.h linux-libre-4.4.7-gnu/arch/arc/include/asm/io.h +--- linux-libre-4.4-gnu/arch/arc/include/asm/io.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arc/include/asm/io.h 2016-04-12 12:09:26.000000000 -0400 +@@ -129,15 +129,23 @@ static inline void __raw_writel(u32 w, v + #define writel(v,c) ({ __iowmb(); writel_relaxed(v,c); }) + + /* +- * Relaxed API for drivers which can handle any ordering themselves ++ * Relaxed API for drivers which can handle barrier ordering themselves ++ * ++ * Also these are defined to perform little endian accesses. ++ * To provide the typical device register semantics of fixed endian, ++ * swap the byte order for Big Endian ++ * ++ * http://lkml.kernel.org/r/201603100845.30602.arnd@arndb.de + */ + #define readb_relaxed(c) __raw_readb(c) +-#define readw_relaxed(c) __raw_readw(c) +-#define readl_relaxed(c) __raw_readl(c) ++#define readw_relaxed(c) ({ u16 __r = le16_to_cpu((__force __le16) \ ++ __raw_readw(c)); __r; }) ++#define readl_relaxed(c) ({ u32 __r = le32_to_cpu((__force __le32) \ ++ __raw_readl(c)); __r; }) + + #define writeb_relaxed(v,c) __raw_writeb(v,c) +-#define writew_relaxed(v,c) __raw_writew(v,c) +-#define writel_relaxed(v,c) __raw_writel(v,c) ++#define writew_relaxed(v,c) __raw_writew((__force u16) cpu_to_le16(v),c) ++#define writel_relaxed(v,c) __raw_writel((__force u32) cpu_to_le32(v),c) + + #include <asm-generic/io.h> + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/irqflags-arcv2.h linux-libre-4.4.7-gnu/arch/arc/include/asm/irqflags-arcv2.h +--- linux-libre-4.4-gnu/arch/arc/include/asm/irqflags-arcv2.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arc/include/asm/irqflags-arcv2.h 2016-04-12 12:09:26.000000000 -0400 +@@ -22,6 +22,7 @@ + #define AUX_IRQ_CTRL 0x00E + #define AUX_IRQ_ACT 0x043 /* Active Intr across all levels */ + #define AUX_IRQ_LVL_PEND 0x200 /* Pending Intr across all levels */ ++#define AUX_IRQ_HINT 0x201 /* For generating Soft Interrupts */ + #define AUX_IRQ_PRIORITY 0x206 + #define ICAUSE 0x40a + #define AUX_IRQ_SELECT 0x40b +@@ -112,6 +113,16 @@ static inline int arch_irqs_disabled(voi + return arch_irqs_disabled_flags(arch_local_save_flags()); + } + ++static inline void arc_softirq_trigger(int irq) ++{ ++ write_aux_reg(AUX_IRQ_HINT, irq); ++} ++ ++static inline void arc_softirq_clear(int irq) ++{ ++ write_aux_reg(AUX_IRQ_HINT, 0); ++} ++ + #else + + .macro IRQ_DISABLE scratch +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/kernel/entry-arcv2.S linux-libre-4.4.7-gnu/arch/arc/kernel/entry-arcv2.S +--- linux-libre-4.4-gnu/arch/arc/kernel/entry-arcv2.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arc/kernel/entry-arcv2.S 2016-04-12 12:09:26.000000000 -0400 +@@ -45,11 +45,12 @@ VECTOR reserved ; Reserved slots + VECTOR handle_interrupt ; (16) Timer0 + VECTOR handle_interrupt ; unused (Timer1) + VECTOR handle_interrupt ; unused (WDT) +-VECTOR handle_interrupt ; (19) ICI (inter core interrupt) +-VECTOR handle_interrupt +-VECTOR handle_interrupt +-VECTOR handle_interrupt +-VECTOR handle_interrupt ; (23) End of fixed IRQs ++VECTOR handle_interrupt ; (19) Inter core Interrupt (IPI) ++VECTOR handle_interrupt ; (20) perf Interrupt ++VECTOR handle_interrupt ; (21) Software Triggered Intr (Self IPI) ++VECTOR handle_interrupt ; unused ++VECTOR handle_interrupt ; (23) unused ++# End of fixed IRQs + + .rept CONFIG_ARC_NUMBER_OF_INTERRUPTS - 8 + VECTOR handle_interrupt +@@ -211,7 +212,11 @@ debug_marker_syscall: + ; (since IRQ NOT allowed in DS in ARCv2, this can only happen if orig + ; entry was via Exception in DS which got preempted in kernel). + ; +-; IRQ RTIE won't reliably restore DE bit and/or BTA, needs handling ++; IRQ RTIE won't reliably restore DE bit and/or BTA, needs workaround ++; ++; Solution is return from Intr w/o any delay slot quirks into a kernel trampoline ++; and from pure kernel mode return to delay slot which handles DS bit/BTA correctly ++ + .Lintr_ret_to_delay_slot: + debug_marker_ds: + +@@ -222,18 +227,23 @@ debug_marker_ds: + ld r2, [sp, PT_ret] + ld r3, [sp, PT_status32] + ++ ; STAT32 for Int return created from scratch ++ ; (No delay dlot, disable Further intr in trampoline) ++ + bic r0, r3, STATUS_U_MASK|STATUS_DE_MASK|STATUS_IE_MASK|STATUS_L_MASK + st r0, [sp, PT_status32] + + mov r1, .Lintr_ret_to_delay_slot_2 + st r1, [sp, PT_ret] + ++ ; Orig exception PC/STAT32 safekept @orig_r0 and @event stack slots + st r2, [sp, 0] + st r3, [sp, 4] + + b .Lisr_ret_fast_path + + .Lintr_ret_to_delay_slot_2: ++ ; Trampoline to restore orig exception PC/STAT32/BTA/AUX_USER_SP + sub sp, sp, SZ_PT_REGS + st r9, [sp, -4] + +@@ -243,11 +253,19 @@ debug_marker_ds: + ld r9, [sp, 4] + sr r9, [erstatus] + ++ ; restore AUX_USER_SP if returning to U mode ++ bbit0 r9, STATUS_U_BIT, 1f ++ ld r9, [sp, PT_sp] ++ sr r9, [AUX_USER_SP] ++ ++1: + ld r9, [sp, 8] + sr r9, [erbta] + + ld r9, [sp, -4] + add sp, sp, SZ_PT_REGS ++ ++ ; return from pure kernel mode to delay slot + rtie + + END(ret_from_exception) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/kernel/mcip.c linux-libre-4.4.7-gnu/arch/arc/kernel/mcip.c +--- linux-libre-4.4-gnu/arch/arc/kernel/mcip.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arc/kernel/mcip.c 2016-04-12 12:09:26.000000000 -0400 +@@ -11,9 +11,12 @@ + #include <linux/smp.h> + #include <linux/irq.h> + #include <linux/spinlock.h> ++#include <asm/irqflags-arcv2.h> + #include <asm/mcip.h> + #include <asm/setup.h> + ++#define SOFTIRQ_IRQ 21 ++ + static char smp_cpuinfo_buf[128]; + static int idu_detected; + +@@ -22,6 +25,7 @@ static DEFINE_RAW_SPINLOCK(mcip_lock); + static void mcip_setup_per_cpu(int cpu) + { + smp_ipi_irq_setup(cpu, IPI_IRQ); ++ smp_ipi_irq_setup(cpu, SOFTIRQ_IRQ); + } + + static void mcip_ipi_send(int cpu) +@@ -29,6 +33,12 @@ static void mcip_ipi_send(int cpu) + unsigned long flags; + int ipi_was_pending; + ++ /* ARConnect can only send IPI to others */ ++ if (unlikely(cpu == raw_smp_processor_id())) { ++ arc_softirq_trigger(SOFTIRQ_IRQ); ++ return; ++ } ++ + /* + * NOTE: We must spin here if the other cpu hasn't yet + * serviced a previous message. This can burn lots +@@ -63,6 +73,11 @@ static void mcip_ipi_clear(int irq) + unsigned long flags; + unsigned int __maybe_unused copy; + ++ if (unlikely(irq == SOFTIRQ_IRQ)) { ++ arc_softirq_clear(irq); ++ return; ++ } ++ + raw_spin_lock_irqsave(&mcip_lock, flags); + + /* Who sent the IPI */ +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-388-gp.dts linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-388-gp.dts +--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-388-gp.dts 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-388-gp.dts 2016-04-12 12:09:26.000000000 -0400 +@@ -303,16 +303,6 @@ + gpio = <&expander0 4 GPIO_ACTIVE_HIGH>; + }; + +- reg_usb2_1_vbus: v5-vbus1 { +- compatible = "regulator-fixed"; +- regulator-name = "v5.0-vbus1"; +- regulator-min-microvolt = <5000000>; +- regulator-max-microvolt = <5000000>; +- enable-active-high; +- regulator-always-on; +- gpio = <&expander0 4 GPIO_ACTIVE_HIGH>; +- }; +- + reg_sata0: pwr-sata0 { + compatible = "regulator-fixed"; + regulator-name = "pwr_en_sata0"; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-axpwifiap.dts linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-axpwifiap.dts +--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-axpwifiap.dts 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-axpwifiap.dts 2016-04-12 12:09:26.000000000 -0400 +@@ -70,8 +70,8 @@ + soc { + ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000 + MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000 +- MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000 +- MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>; ++ MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000 ++ MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>; + + pcie-controller { + status = "okay"; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-db.dts linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-db.dts +--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-db.dts 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-db.dts 2016-04-12 12:09:26.000000000 -0400 +@@ -76,8 +76,8 @@ + ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000 + MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000 + MBUS_ID(0x01, 0x2f) 0 0 0xf0000000 0x1000000 +- MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000 +- MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>; ++ MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000 ++ MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>; + + devbus-bootcs { + status = "okay"; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-gp.dts linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-gp.dts +--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-gp.dts 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-gp.dts 2016-04-12 12:09:26.000000000 -0400 +@@ -95,8 +95,8 @@ + ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000 + MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000 + MBUS_ID(0x01, 0x2f) 0 0 0xf0000000 0x1000000 +- MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000 +- MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>; ++ MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000 ++ MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>; + + devbus-bootcs { + status = "okay"; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-lenovo-ix4-300d.dts linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-lenovo-ix4-300d.dts +--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-lenovo-ix4-300d.dts 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-lenovo-ix4-300d.dts 2016-04-12 12:09:26.000000000 -0400 +@@ -65,8 +65,8 @@ + soc { + ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000 + MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000 +- MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000 +- MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>; ++ MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000 ++ MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>; + + pcie-controller { + status = "okay"; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-linksys-mamba.dts linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-linksys-mamba.dts +--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-linksys-mamba.dts 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-linksys-mamba.dts 2016-04-12 12:09:26.000000000 -0400 +@@ -70,8 +70,8 @@ + soc { + ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000 + MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000 +- MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000 +- MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>; ++ MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000 ++ MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>; + + pcie-controller { + status = "okay"; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-matrix.dts linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-matrix.dts +--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-matrix.dts 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-matrix.dts 2016-04-12 12:09:26.000000000 -0400 +@@ -68,8 +68,8 @@ + soc { + ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000 + MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000 +- MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000 +- MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>; ++ MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000 ++ MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>; + + internal-regs { + serial@12000 { +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts +--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts 2016-04-12 12:09:26.000000000 -0400 +@@ -64,8 +64,8 @@ + soc { + ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000 + MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000 +- MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000 +- MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>; ++ MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000 ++ MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>; + + pcie-controller { + status = "okay"; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts +--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts 2016-04-12 12:09:26.000000000 -0400 +@@ -65,9 +65,9 @@ + soc { + ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000 + MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000 +- MBUS_ID(0x01, 0x2f) 0 0 0xf0000000 0x8000000 +- MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000 +- MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>; ++ MBUS_ID(0x01, 0x2f) 0 0 0xe8000000 0x8000000 ++ MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000 ++ MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>; + + devbus-bootcs { + status = "okay"; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-synology-ds414.dts linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-synology-ds414.dts +--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-synology-ds414.dts 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/armada-xp-synology-ds414.dts 2016-04-12 12:09:26.000000000 -0400 +@@ -78,8 +78,8 @@ + soc { + ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000 + MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000 +- MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000 +- MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>; ++ MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000 ++ MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>; + + pcie-controller { + status = "okay"; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/at91-sama5d3_xplained.dts linux-libre-4.4.7-gnu/arch/arm/boot/dts/at91-sama5d3_xplained.dts +--- linux-libre-4.4-gnu/arch/arm/boot/dts/at91-sama5d3_xplained.dts 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/at91-sama5d3_xplained.dts 2016-04-12 12:09:26.000000000 -0400 +@@ -303,6 +303,7 @@ + regulator-name = "mmc0-card-supply"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; ++ regulator-always-on; + }; + + gpio_keys { +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/at91-sama5d4ek.dts linux-libre-4.4.7-gnu/arch/arm/boot/dts/at91-sama5d4ek.dts +--- linux-libre-4.4-gnu/arch/arm/boot/dts/at91-sama5d4ek.dts 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/at91-sama5d4ek.dts 2016-04-12 12:09:26.000000000 -0400 +@@ -160,8 +160,15 @@ + }; + + macb0: ethernet@f8020000 { ++ pinctrl-0 = <&pinctrl_macb0_rmii &pinctrl_macb0_phy_irq>; + phy-mode = "rmii"; + status = "okay"; ++ ++ ethernet-phy@1 { ++ reg = <0x1>; ++ interrupt-parent = <&pioE>; ++ interrupts = <1 IRQ_TYPE_LEVEL_LOW>; ++ }; + }; + + mmc1: mmc@fc000000 { +@@ -193,6 +200,10 @@ + + pinctrl@fc06a000 { + board { ++ pinctrl_macb0_phy_irq: macb0_phy_irq { ++ atmel,pins = ++ <AT91_PIOE 1 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>; ++ }; + pinctrl_mmc0_cd: mmc0_cd { + atmel,pins = + <AT91_PIOE 5 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/at91-sama5d4_xplained.dts linux-libre-4.4.7-gnu/arch/arm/boot/dts/at91-sama5d4_xplained.dts +--- linux-libre-4.4-gnu/arch/arm/boot/dts/at91-sama5d4_xplained.dts 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/at91-sama5d4_xplained.dts 2016-04-12 12:09:26.000000000 -0400 +@@ -86,10 +86,12 @@ + macb0: ethernet@f8020000 { + phy-mode = "rmii"; + status = "okay"; ++ pinctrl-names = "default"; ++ pinctrl-0 = <&pinctrl_macb0_rmii &pinctrl_macb0_phy_irq>; + + phy0: ethernet-phy@1 { + interrupt-parent = <&pioE>; +- interrupts = <1 IRQ_TYPE_EDGE_FALLING>; ++ interrupts = <1 IRQ_TYPE_LEVEL_LOW>; + reg = <1>; + }; + }; +@@ -152,6 +154,10 @@ + atmel,pins = + <AT91_PIOE 8 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>; + }; ++ pinctrl_macb0_phy_irq: macb0_phy_irq_0 { ++ atmel,pins = ++ <AT91_PIOE 1 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>; ++ }; + }; + }; + }; +@@ -262,5 +268,6 @@ + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + vin-supply = <&vcc_3v3_reg>; ++ regulator-always-on; + }; + }; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/dra7.dtsi linux-libre-4.4.7-gnu/arch/arm/boot/dts/dra7.dtsi +--- linux-libre-4.4-gnu/arch/arm/boot/dts/dra7.dtsi 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/dra7.dtsi 2016-04-12 12:09:26.000000000 -0400 +@@ -1497,6 +1497,16 @@ + 0x48485200 0x2E00>; + #address-cells = <1>; + #size-cells = <1>; ++ ++ /* ++ * Do not allow gating of cpsw clock as workaround ++ * for errata i877. Keeping internal clock disabled ++ * causes the device switching characteristics ++ * to degrade over time and eventually fail to meet ++ * the data manual delay time/skew specs. ++ */ ++ ti,no-idle; ++ + /* + * rx_thresh_pend + * rx_pend +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/logicpd-torpedo-som.dtsi linux-libre-4.4.7-gnu/arch/arm/boot/dts/logicpd-torpedo-som.dtsi +--- linux-libre-4.4-gnu/arch/arm/boot/dts/logicpd-torpedo-som.dtsi 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/logicpd-torpedo-som.dtsi 2016-04-12 12:09:26.000000000 -0400 +@@ -122,6 +122,7 @@ + interrupt-parent = <&gpio5>; + interrupts = <24 IRQ_TYPE_LEVEL_HIGH>; /* gpio 152 */ + ref-clock-frequency = <26000000>; ++ tcxo-clock-frequency = <26000000>; + }; + }; + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/omap5-board-common.dtsi linux-libre-4.4.7-gnu/arch/arm/boot/dts/omap5-board-common.dtsi +--- linux-libre-4.4-gnu/arch/arm/boot/dts/omap5-board-common.dtsi 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/omap5-board-common.dtsi 2016-04-12 12:09:26.000000000 -0400 +@@ -130,6 +130,16 @@ + }; + }; + ++&gpio8 { ++ /* TI trees use GPIO instead of msecure, see also muxing */ ++ p234 { ++ gpio-hog; ++ gpios = <10 GPIO_ACTIVE_HIGH>; ++ output-high; ++ line-name = "gpio8_234/msecure"; ++ }; ++}; ++ + &omap5_pmx_core { + pinctrl-names = "default"; + pinctrl-0 = < +@@ -213,6 +223,13 @@ + >; + }; + ++ /* TI trees use GPIO mode; msecure mode does not work reliably? */ ++ palmas_msecure_pins: palmas_msecure_pins { ++ pinctrl-single,pins = < ++ OMAP5_IOPAD(0x180, PIN_OUTPUT | MUX_MODE6) /* gpio8_234 */ ++ >; ++ }; ++ + usbhost_pins: pinmux_usbhost_pins { + pinctrl-single,pins = < + 0x84 (PIN_INPUT | MUX_MODE0) /* usbb2_hsic_strobe */ +@@ -278,6 +295,12 @@ + &usbhost_wkup_pins + >; + ++ palmas_sys_nirq_pins: pinmux_palmas_sys_nirq_pins { ++ pinctrl-single,pins = < ++ OMAP5_IOPAD(0x068, PIN_INPUT_PULLUP | MUX_MODE0) /* sys_nirq1 */ ++ >; ++ }; ++ + usbhost_wkup_pins: pinmux_usbhost_wkup_pins { + pinctrl-single,pins = < + 0x1A (PIN_OUTPUT | MUX_MODE0) /* fref_clk1_out, USB hub clk */ +@@ -345,6 +368,8 @@ + interrupt-controller; + #interrupt-cells = <2>; + ti,system-power-controller; ++ pinctrl-names = "default"; ++ pinctrl-0 = <&palmas_sys_nirq_pins &palmas_msecure_pins>; + + extcon_usb3: palmas_usb { + compatible = "ti,palmas-usb-vid"; +@@ -358,6 +383,14 @@ + #clock-cells = <0>; + }; + ++ rtc { ++ compatible = "ti,palmas-rtc"; ++ interrupt-parent = <&palmas>; ++ interrupts = <8 IRQ_TYPE_NONE>; ++ ti,backup-battery-chargeable; ++ ti,backup-battery-charge-high-current; ++ }; ++ + palmas_pmic { + compatible = "ti,palmas-pmic"; + interrupt-parent = <&palmas>; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/sama5d2-pinfunc.h linux-libre-4.4.7-gnu/arch/arm/boot/dts/sama5d2-pinfunc.h +--- linux-libre-4.4-gnu/arch/arm/boot/dts/sama5d2-pinfunc.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/sama5d2-pinfunc.h 2016-04-12 12:09:26.000000000 -0400 +@@ -90,7 +90,7 @@ + #define PIN_PA14__I2SC1_MCK PINMUX_PIN(PIN_PA14, 4, 2) + #define PIN_PA14__FLEXCOM3_IO2 PINMUX_PIN(PIN_PA14, 5, 1) + #define PIN_PA14__D9 PINMUX_PIN(PIN_PA14, 6, 2) +-#define PIN_PA15 14 ++#define PIN_PA15 15 + #define PIN_PA15__GPIO PINMUX_PIN(PIN_PA15, 0, 0) + #define PIN_PA15__SPI0_MOSI PINMUX_PIN(PIN_PA15, 1, 1) + #define PIN_PA15__TF1 PINMUX_PIN(PIN_PA15, 2, 1) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/sama5d4.dtsi linux-libre-4.4.7-gnu/arch/arm/boot/dts/sama5d4.dtsi +--- linux-libre-4.4-gnu/arch/arm/boot/dts/sama5d4.dtsi 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/sama5d4.dtsi 2016-04-12 12:09:26.000000000 -0400 +@@ -1342,7 +1342,7 @@ + dbgu: serial@fc069000 { + compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart"; + reg = <0xfc069000 0x200>; +- interrupts = <2 IRQ_TYPE_LEVEL_HIGH 7>; ++ interrupts = <45 IRQ_TYPE_LEVEL_HIGH 7>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_dbgu>; + clocks = <&dbgu_clk>; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi linux-libre-4.4.7-gnu/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi +--- linux-libre-4.4-gnu/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi 2016-04-12 12:09:26.000000000 -0400 +@@ -127,22 +127,14 @@ + }; + mmcsd_default_mode: mmcsd_default { + mmcsd_default_cfg1 { +- /* MCCLK */ +- pins = "GPIO8_B10"; +- ste,output = <0>; +- }; +- mmcsd_default_cfg2 { +- /* MCCMDDIR, MCDAT0DIR, MCDAT31DIR, MCDATDIR2 */ +- pins = "GPIO10_C11", "GPIO15_A12", +- "GPIO16_C13", "GPIO23_D15"; +- ste,output = <1>; +- }; +- mmcsd_default_cfg3 { +- /* MCCMD, MCDAT3-0, MCMSFBCLK */ +- pins = "GPIO9_A10", "GPIO11_B11", +- "GPIO12_A11", "GPIO13_C12", +- "GPIO14_B12", "GPIO24_C15"; +- ste,input = <1>; ++ /* ++ * MCCLK, MCCMDDIR, MCDAT0DIR, MCDAT31DIR, MCDATDIR2 ++ * MCCMD, MCDAT3-0, MCMSFBCLK ++ */ ++ pins = "GPIO8_B10", "GPIO9_A10", "GPIO10_C11", "GPIO11_B11", ++ "GPIO12_A11", "GPIO13_C12", "GPIO14_B12", "GPIO15_A12", ++ "GPIO16_C13", "GPIO23_D15", "GPIO24_C15"; ++ ste,output = <2>; + }; + }; + }; +@@ -802,10 +794,21 @@ + clock-names = "mclk", "apb_pclk"; + interrupt-parent = <&vica>; + interrupts = <22>; +- max-frequency = <48000000>; ++ max-frequency = <400000>; + bus-width = <4>; + cap-mmc-highspeed; + cap-sd-highspeed; ++ full-pwr-cycle; ++ /* ++ * The STw4811 circuit used with the Nomadik strictly ++ * requires that all of these signal direction pins be ++ * routed and used for its 4-bit levelshifter. ++ */ ++ st,sig-dir-dat0; ++ st,sig-dir-dat2; ++ st,sig-dir-dat31; ++ st,sig-dir-cmd; ++ st,sig-pin-fbclk; + pinctrl-names = "default"; + pinctrl-0 = <&mmcsd_default_mux>, <&mmcsd_default_mode>; + vmmc-supply = <&vmmc_regulator>; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/common/icst.c linux-libre-4.4.7-gnu/arch/arm/common/icst.c +--- linux-libre-4.4-gnu/arch/arm/common/icst.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/common/icst.c 2016-04-12 12:09:26.000000000 -0400 +@@ -16,7 +16,7 @@ + */ + #include <linux/module.h> + #include <linux/kernel.h> +- ++#include <asm/div64.h> + #include <asm/hardware/icst.h> + + /* +@@ -29,7 +29,11 @@ EXPORT_SYMBOL(icst525_s2div); + + unsigned long icst_hz(const struct icst_params *p, struct icst_vco vco) + { +- return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * p->s2div[vco.s]); ++ u64 dividend = p->ref * 2 * (u64)(vco.v + 8); ++ u32 divisor = (vco.r + 2) * p->s2div[vco.s]; ++ ++ do_div(dividend, divisor); ++ return (unsigned long)dividend; + } + + EXPORT_SYMBOL(icst_hz); +@@ -58,6 +62,7 @@ icst_hz_to_vco(const struct icst_params + + if (f > p->vco_min && f <= p->vco_max) + break; ++ i++; + } while (i < 8); + + if (i >= 8) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/psci.h linux-libre-4.4.7-gnu/arch/arm/include/asm/psci.h +--- linux-libre-4.4-gnu/arch/arm/include/asm/psci.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/include/asm/psci.h 2016-04-12 12:09:26.000000000 -0400 +@@ -16,7 +16,7 @@ + + extern struct smp_operations psci_smp_ops; + +-#ifdef CONFIG_ARM_PSCI ++#if defined(CONFIG_SMP) && defined(CONFIG_ARM_PSCI) + bool psci_smp_available(void); + #else + static inline bool psci_smp_available(void) { return false; } +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/xen/page-coherent.h linux-libre-4.4.7-gnu/arch/arm/include/asm/xen/page-coherent.h +--- linux-libre-4.4-gnu/arch/arm/include/asm/xen/page-coherent.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/include/asm/xen/page-coherent.h 2016-04-12 12:09:26.000000000 -0400 +@@ -35,14 +35,21 @@ static inline void xen_dma_map_page(stru + dma_addr_t dev_addr, unsigned long offset, size_t size, + enum dma_data_direction dir, struct dma_attrs *attrs) + { +- bool local = XEN_PFN_DOWN(dev_addr) == page_to_xen_pfn(page); ++ unsigned long page_pfn = page_to_xen_pfn(page); ++ unsigned long dev_pfn = XEN_PFN_DOWN(dev_addr); ++ unsigned long compound_pages = ++ (1<<compound_order(page)) * XEN_PFN_PER_PAGE; ++ bool local = (page_pfn <= dev_pfn) && ++ (dev_pfn - page_pfn < compound_pages); ++ + /* +- * Dom0 is mapped 1:1, while the Linux page can be spanned accross +- * multiple Xen page, it's not possible to have a mix of local and +- * foreign Xen page. So if the first xen_pfn == mfn the page is local +- * otherwise it's a foreign page grant-mapped in dom0. If the page is +- * local we can safely call the native dma_ops function, otherwise we +- * call the xen specific function. ++ * Dom0 is mapped 1:1, while the Linux page can span across ++ * multiple Xen pages, it's not possible for it to contain a ++ * mix of local and foreign Xen pages. So if the first xen_pfn ++ * == mfn the page is local otherwise it's a foreign page ++ * grant-mapped in dom0. If the page is local we can safely ++ * call the native dma_ops function, otherwise we call the xen ++ * specific function. + */ + if (local) + __generic_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/Kconfig.debug linux-libre-4.4.7-gnu/arch/arm/Kconfig.debug +--- linux-libre-4.4-gnu/arch/arm/Kconfig.debug 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/Kconfig.debug 2016-04-12 12:09:26.000000000 -0400 +@@ -162,10 +162,9 @@ choice + mobile SoCs in the Kona family of chips (e.g. bcm28155, + bcm11351, etc...) + +- config DEBUG_BCM63XX ++ config DEBUG_BCM63XX_UART + bool "Kernel low-level debugging on BCM63XX UART" + depends on ARCH_BCM_63XX +- select DEBUG_UART_BCM63XX + + config DEBUG_BERLIN_UART + bool "Marvell Berlin SoC Debug UART" +@@ -1348,7 +1347,7 @@ config DEBUG_LL_INCLUDE + default "debug/vf.S" if DEBUG_VF_UART + default "debug/vt8500.S" if DEBUG_VT8500_UART0 + default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1 +- default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX ++ default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART + default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0 + default "mach/debug-macro.S" + +@@ -1364,10 +1363,6 @@ config DEBUG_UART_8250 + ARCH_IOP33X || ARCH_IXP4XX || \ + ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC + +-# Compatibility options for BCM63xx +-config DEBUG_UART_BCM63XX +- def_bool ARCH_BCM_63XX +- + config DEBUG_UART_PHYS + hex "Physical base address of debug UART" + default 0x00100a00 if DEBUG_NETX_UART +@@ -1462,7 +1457,7 @@ config DEBUG_UART_PHYS + default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 + default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 + default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 +- default 0xfffe8600 if DEBUG_UART_BCM63XX ++ default 0xfffe8600 if DEBUG_BCM63XX_UART + default 0xfffff700 if ARCH_IOP33X + depends on ARCH_EP93XX || \ + DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ +@@ -1474,7 +1469,7 @@ config DEBUG_UART_PHYS + DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \ + DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \ + DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \ +- DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \ ++ DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \ + DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \ + DEBUG_AT91_UART + +@@ -1515,7 +1510,7 @@ config DEBUG_UART_VIRT + default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT + default 0xfc40ab00 if DEBUG_BRCMSTB_UART + default 0xfc705000 if DEBUG_ZTE_ZX +- default 0xfcfe8600 if DEBUG_UART_BCM63XX ++ default 0xfcfe8600 if DEBUG_BCM63XX_UART + default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX + default 0xfd000000 if ARCH_SPEAR13XX + default 0xfd012000 if ARCH_MV78XX0 +@@ -1566,7 +1561,7 @@ config DEBUG_UART_VIRT + DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ + DEBUG_NETX_UART || \ + DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \ +- DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \ ++ DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \ + DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 + + config DEBUG_UART_8250_SHIFT +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kvm/guest.c linux-libre-4.4.7-gnu/arch/arm/kvm/guest.c +--- linux-libre-4.4-gnu/arch/arm/kvm/guest.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/kvm/guest.c 2016-04-12 12:09:26.000000000 -0400 +@@ -155,7 +155,7 @@ static int get_timer_reg(struct kvm_vcpu + u64 val; + + val = kvm_arm_timer_get_reg(vcpu, reg->id); +- return copy_to_user(uaddr, &val, KVM_REG_SIZE(reg->id)); ++ return copy_to_user(uaddr, &val, KVM_REG_SIZE(reg->id)) ? -EFAULT : 0; + } + + static unsigned long num_core_regs(void) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/gpmc-onenand.c linux-libre-4.4.7-gnu/arch/arm/mach-omap2/gpmc-onenand.c +--- linux-libre-4.4-gnu/arch/arm/mach-omap2/gpmc-onenand.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/mach-omap2/gpmc-onenand.c 2016-04-12 12:09:26.000000000 -0400 +@@ -101,10 +101,8 @@ static void omap2_onenand_set_async_mode + + static void set_onenand_cfg(void __iomem *onenand_base) + { +- u32 reg; ++ u32 reg = ONENAND_SYS_CFG1_RDY | ONENAND_SYS_CFG1_INT; + +- reg = readw(onenand_base + ONENAND_REG_SYS_CFG1); +- reg &= ~((0x7 << ONENAND_SYS_CFG1_BRL_SHIFT) | (0x7 << 9)); + reg |= (latency << ONENAND_SYS_CFG1_BRL_SHIFT) | + ONENAND_SYS_CFG1_BL_16; + if (onenand_flags & ONENAND_FLAG_SYNCREAD) +@@ -123,6 +121,7 @@ static void set_onenand_cfg(void __iomem + reg |= ONENAND_SYS_CFG1_VHF; + else + reg &= ~ONENAND_SYS_CFG1_VHF; ++ + writew(reg, onenand_base + ONENAND_REG_SYS_CFG1); + } + +@@ -289,6 +288,7 @@ static int omap2_onenand_setup_async(voi + } + } + ++ onenand_async.sync_write = true; + omap2_onenand_calc_async_timings(&t); + + ret = gpmc_cs_program_settings(gpmc_onenand_data->cs, &onenand_async); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/omap_hwmod.c linux-libre-4.4.7-gnu/arch/arm/mach-omap2/omap_hwmod.c +--- linux-libre-4.4-gnu/arch/arm/mach-omap2/omap_hwmod.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/mach-omap2/omap_hwmod.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2200,6 +2200,11 @@ static int _enable(struct omap_hwmod *oh + */ + static int _idle(struct omap_hwmod *oh) + { ++ if (oh->flags & HWMOD_NO_IDLE) { ++ oh->_int_flags |= _HWMOD_SKIP_ENABLE; ++ return 0; ++ } ++ + pr_debug("omap_hwmod: %s: idling\n", oh->name); + + if (oh->_state != _HWMOD_STATE_ENABLED) { +@@ -2504,6 +2509,8 @@ static int __init _init(struct omap_hwmo + oh->flags |= HWMOD_INIT_NO_RESET; + if (of_find_property(np, "ti,no-idle-on-init", NULL)) + oh->flags |= HWMOD_INIT_NO_IDLE; ++ if (of_find_property(np, "ti,no-idle", NULL)) ++ oh->flags |= HWMOD_NO_IDLE; + } + + oh->_state = _HWMOD_STATE_INITIALIZED; +@@ -2630,7 +2637,7 @@ static void __init _setup_postsetup(stru + * XXX HWMOD_INIT_NO_IDLE does not belong in hwmod data - + * it should be set by the core code as a runtime flag during startup + */ +- if ((oh->flags & HWMOD_INIT_NO_IDLE) && ++ if ((oh->flags & (HWMOD_INIT_NO_IDLE | HWMOD_NO_IDLE)) && + (postsetup_state == _HWMOD_STATE_IDLE)) { + oh->_int_flags |= _HWMOD_SKIP_ENABLE; + postsetup_state = _HWMOD_STATE_ENABLED; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/omap_hwmod.h linux-libre-4.4.7-gnu/arch/arm/mach-omap2/omap_hwmod.h +--- linux-libre-4.4-gnu/arch/arm/mach-omap2/omap_hwmod.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/mach-omap2/omap_hwmod.h 2016-04-12 12:09:26.000000000 -0400 +@@ -525,6 +525,8 @@ struct omap_hwmod_omap4_prcm { + * or idled. + * HWMOD_OPT_CLKS_NEEDED: The optional clocks are needed for the module to + * operate and they need to be handled at the same time as the main_clk. ++ * HWMOD_NO_IDLE: Do not idle the hwmod at all. Useful to handle certain ++ * IPs like CPSW on DRA7, where clocks to this module cannot be disabled. + */ + #define HWMOD_SWSUP_SIDLE (1 << 0) + #define HWMOD_SWSUP_MSTANDBY (1 << 1) +@@ -541,6 +543,7 @@ struct omap_hwmod_omap4_prcm { + #define HWMOD_SWSUP_SIDLE_ACT (1 << 12) + #define HWMOD_RECONFIG_IO_CHAIN (1 << 13) + #define HWMOD_OPT_CLKS_NEEDED (1 << 14) ++#define HWMOD_NO_IDLE (1 << 15) + + /* + * omap_hwmod._int_flags definitions +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/sleep34xx.S linux-libre-4.4.7-gnu/arch/arm/mach-omap2/sleep34xx.S +--- linux-libre-4.4-gnu/arch/arm/mach-omap2/sleep34xx.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/mach-omap2/sleep34xx.S 2016-04-12 12:09:26.000000000 -0400 +@@ -86,13 +86,18 @@ ENTRY(enable_omap3630_toggle_l2_on_resto + stmfd sp!, {lr} @ save registers on stack + /* Setup so that we will disable and enable l2 */ + mov r1, #0x1 +- adrl r2, l2dis_3630 @ may be too distant for plain adr +- str r1, [r2] ++ adrl r3, l2dis_3630_offset @ may be too distant for plain adr ++ ldr r2, [r3] @ value for offset ++ str r1, [r2, r3] @ write to l2dis_3630 + ldmfd sp!, {pc} @ restore regs and return + ENDPROC(enable_omap3630_toggle_l2_on_restore) + +- .text +-/* Function to call rom code to save secure ram context */ ++/* ++ * Function to call rom code to save secure ram context. This gets ++ * relocated to SRAM, so it can be all in .data section. Otherwise ++ * we need to initialize api_params separately. ++ */ ++ .data + .align 3 + ENTRY(save_secure_ram_context) + stmfd sp!, {r4 - r11, lr} @ save registers on stack +@@ -126,6 +131,8 @@ ENDPROC(save_secure_ram_context) + ENTRY(save_secure_ram_context_sz) + .word . - save_secure_ram_context + ++ .text ++ + /* + * ====================== + * == Idle entry point == +@@ -289,12 +296,6 @@ wait_sdrc_ready: + bic r5, r5, #0x40 + str r5, [r4] + +-/* +- * PC-relative stores lead to undefined behaviour in Thumb-2: use a r7 as a +- * base instead. +- * Be careful not to clobber r7 when maintaing this code. +- */ +- + is_dll_in_lock_mode: + /* Is dll in lock mode? */ + ldr r4, sdrc_dlla_ctrl +@@ -302,11 +303,7 @@ is_dll_in_lock_mode: + tst r5, #0x4 + bne exit_nonoff_modes @ Return if locked + /* wait till dll locks */ +- adr r7, kick_counter + wait_dll_lock_timed: +- ldr r4, wait_dll_lock_counter +- add r4, r4, #1 +- str r4, [r7, #wait_dll_lock_counter - kick_counter] + ldr r4, sdrc_dlla_status + /* Wait 20uS for lock */ + mov r6, #8 +@@ -330,9 +327,6 @@ kick_dll: + orr r6, r6, #(1<<3) @ enable dll + str r6, [r4] + dsb +- ldr r4, kick_counter +- add r4, r4, #1 +- str r4, [r7] @ kick_counter + b wait_dll_lock_timed + + exit_nonoff_modes: +@@ -360,15 +354,6 @@ sdrc_dlla_status: + .word SDRC_DLLA_STATUS_V + sdrc_dlla_ctrl: + .word SDRC_DLLA_CTRL_V +- /* +- * When exporting to userspace while the counters are in SRAM, +- * these 2 words need to be at the end to facilitate retrival! +- */ +-kick_counter: +- .word 0 +-wait_dll_lock_counter: +- .word 0 +- + ENTRY(omap3_do_wfi_sz) + .word . - omap3_do_wfi + +@@ -437,7 +422,9 @@ ENTRY(omap3_restore) + cmp r2, #0x0 @ Check if target power state was OFF or RET + bne logic_l1_restore + +- ldr r0, l2dis_3630 ++ adr r1, l2dis_3630_offset @ address for offset ++ ldr r0, [r1] @ value for offset ++ ldr r0, [r1, r0] @ value at l2dis_3630 + cmp r0, #0x1 @ should we disable L2 on 3630? + bne skipl2dis + mrc p15, 0, r0, c1, c0, 1 +@@ -449,12 +436,14 @@ skipl2dis: + and r1, #0x700 + cmp r1, #0x300 + beq l2_inv_gp ++ adr r0, l2_inv_api_params_offset ++ ldr r3, [r0] ++ add r3, r3, r0 @ r3 points to dummy parameters + mov r0, #40 @ set service ID for PPA + mov r12, r0 @ copy secure Service ID in r12 + mov r1, #0 @ set task id for ROM code in r1 + mov r2, #4 @ set some flags in r2, r6 + mov r6, #0xff +- adr r3, l2_inv_api_params @ r3 points to dummy parameters + dsb @ data write barrier + dmb @ data memory barrier + smc #1 @ call SMI monitor (smi #1) +@@ -488,8 +477,8 @@ skipl2dis: + b logic_l1_restore + + .align +-l2_inv_api_params: +- .word 0x1, 0x00 ++l2_inv_api_params_offset: ++ .long l2_inv_api_params - . + l2_inv_gp: + /* Execute smi to invalidate L2 cache */ + mov r12, #0x1 @ set up to invalidate L2 +@@ -506,7 +495,9 @@ l2_inv_gp: + mov r12, #0x2 + smc #0 @ Call SMI monitor (smieq) + logic_l1_restore: +- ldr r1, l2dis_3630 ++ adr r0, l2dis_3630_offset @ adress for offset ++ ldr r1, [r0] @ value for offset ++ ldr r1, [r0, r1] @ value at l2dis_3630 + cmp r1, #0x1 @ Test if L2 re-enable needed on 3630 + bne skipl2reen + mrc p15, 0, r1, c1, c0, 1 +@@ -535,9 +526,17 @@ control_stat: + .word CONTROL_STAT + control_mem_rta: + .word CONTROL_MEM_RTA_CTRL ++l2dis_3630_offset: ++ .long l2dis_3630 - . ++ ++ .data + l2dis_3630: + .word 0 + ++ .data ++l2_inv_api_params: ++ .word 0x1, 0x00 ++ + /* + * Internal functions + */ +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/sleep44xx.S linux-libre-4.4.7-gnu/arch/arm/mach-omap2/sleep44xx.S +--- linux-libre-4.4-gnu/arch/arm/mach-omap2/sleep44xx.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/mach-omap2/sleep44xx.S 2016-04-12 12:09:26.000000000 -0400 +@@ -29,12 +29,6 @@ + dsb + .endm + +-ppa_zero_params: +- .word 0x0 +- +-ppa_por_params: +- .word 1, 0 +- + #ifdef CONFIG_ARCH_OMAP4 + + /* +@@ -266,7 +260,9 @@ ENTRY(omap4_cpu_resume) + beq skip_ns_smp_enable + ppa_actrl_retry: + mov r0, #OMAP4_PPA_CPU_ACTRL_SMP_INDEX +- adr r3, ppa_zero_params @ Pointer to parameters ++ adr r1, ppa_zero_params_offset ++ ldr r3, [r1] ++ add r3, r3, r1 @ Pointer to ppa_zero_params + mov r1, #0x0 @ Process ID + mov r2, #0x4 @ Flag + mov r6, #0xff +@@ -303,7 +299,9 @@ skip_ns_smp_enable: + ldr r0, =OMAP4_PPA_L2_POR_INDEX + ldr r1, =OMAP44XX_SAR_RAM_BASE + ldr r4, [r1, #L2X0_PREFETCH_CTRL_OFFSET] +- adr r3, ppa_por_params ++ adr r1, ppa_por_params_offset ++ ldr r3, [r1] ++ add r3, r3, r1 @ Pointer to ppa_por_params + str r4, [r3, #0x04] + mov r1, #0x0 @ Process ID + mov r2, #0x4 @ Flag +@@ -328,6 +326,8 @@ skip_l2en: + #endif + + b cpu_resume @ Jump to generic resume ++ppa_por_params_offset: ++ .long ppa_por_params - . + ENDPROC(omap4_cpu_resume) + #endif /* CONFIG_ARCH_OMAP4 */ + +@@ -380,4 +380,13 @@ ENTRY(omap_do_wfi) + nop + + ldmfd sp!, {pc} ++ppa_zero_params_offset: ++ .long ppa_zero_params - . + ENDPROC(omap_do_wfi) ++ ++ .data ++ppa_zero_params: ++ .word 0 ++ ++ppa_por_params: ++ .word 1, 0 +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-s3c64xx/dev-audio.c linux-libre-4.4.7-gnu/arch/arm/mach-s3c64xx/dev-audio.c +--- linux-libre-4.4-gnu/arch/arm/mach-s3c64xx/dev-audio.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/mach-s3c64xx/dev-audio.c 2016-04-12 12:09:26.000000000 -0400 +@@ -54,12 +54,12 @@ static int s3c64xx_i2s_cfg_gpio(struct p + + static struct resource s3c64xx_iis0_resource[] = { + [0] = DEFINE_RES_MEM(S3C64XX_PA_IIS0, SZ_256), +- [1] = DEFINE_RES_DMA(DMACH_I2S0_OUT), +- [2] = DEFINE_RES_DMA(DMACH_I2S0_IN), + }; + +-static struct s3c_audio_pdata i2sv3_pdata = { ++static struct s3c_audio_pdata i2s0_pdata = { + .cfg_gpio = s3c64xx_i2s_cfg_gpio, ++ .dma_playback = DMACH_I2S0_OUT, ++ .dma_capture = DMACH_I2S0_IN, + }; + + struct platform_device s3c64xx_device_iis0 = { +@@ -68,15 +68,19 @@ struct platform_device s3c64xx_device_ii + .num_resources = ARRAY_SIZE(s3c64xx_iis0_resource), + .resource = s3c64xx_iis0_resource, + .dev = { +- .platform_data = &i2sv3_pdata, ++ .platform_data = &i2s0_pdata, + }, + }; + EXPORT_SYMBOL(s3c64xx_device_iis0); + + static struct resource s3c64xx_iis1_resource[] = { + [0] = DEFINE_RES_MEM(S3C64XX_PA_IIS1, SZ_256), +- [1] = DEFINE_RES_DMA(DMACH_I2S1_OUT), +- [2] = DEFINE_RES_DMA(DMACH_I2S1_IN), ++}; ++ ++static struct s3c_audio_pdata i2s1_pdata = { ++ .cfg_gpio = s3c64xx_i2s_cfg_gpio, ++ .dma_playback = DMACH_I2S1_OUT, ++ .dma_capture = DMACH_I2S1_IN, + }; + + struct platform_device s3c64xx_device_iis1 = { +@@ -85,19 +89,19 @@ struct platform_device s3c64xx_device_ii + .num_resources = ARRAY_SIZE(s3c64xx_iis1_resource), + .resource = s3c64xx_iis1_resource, + .dev = { +- .platform_data = &i2sv3_pdata, ++ .platform_data = &i2s1_pdata, + }, + }; + EXPORT_SYMBOL(s3c64xx_device_iis1); + + static struct resource s3c64xx_iisv4_resource[] = { + [0] = DEFINE_RES_MEM(S3C64XX_PA_IISV4, SZ_256), +- [1] = DEFINE_RES_DMA(DMACH_HSI_I2SV40_TX), +- [2] = DEFINE_RES_DMA(DMACH_HSI_I2SV40_RX), + }; + + static struct s3c_audio_pdata i2sv4_pdata = { + .cfg_gpio = s3c64xx_i2s_cfg_gpio, ++ .dma_playback = DMACH_HSI_I2SV40_TX, ++ .dma_capture = DMACH_HSI_I2SV40_RX, + .type = { + .i2s = { + .quirks = QUIRK_PRI_6CHAN, +@@ -142,12 +146,12 @@ static int s3c64xx_pcm_cfg_gpio(struct p + + static struct resource s3c64xx_pcm0_resource[] = { + [0] = DEFINE_RES_MEM(S3C64XX_PA_PCM0, SZ_256), +- [1] = DEFINE_RES_DMA(DMACH_PCM0_TX), +- [2] = DEFINE_RES_DMA(DMACH_PCM0_RX), + }; + + static struct s3c_audio_pdata s3c_pcm0_pdata = { + .cfg_gpio = s3c64xx_pcm_cfg_gpio, ++ .dma_capture = DMACH_PCM0_RX, ++ .dma_playback = DMACH_PCM0_TX, + }; + + struct platform_device s3c64xx_device_pcm0 = { +@@ -163,12 +167,12 @@ EXPORT_SYMBOL(s3c64xx_device_pcm0); + + static struct resource s3c64xx_pcm1_resource[] = { + [0] = DEFINE_RES_MEM(S3C64XX_PA_PCM1, SZ_256), +- [1] = DEFINE_RES_DMA(DMACH_PCM1_TX), +- [2] = DEFINE_RES_DMA(DMACH_PCM1_RX), + }; + + static struct s3c_audio_pdata s3c_pcm1_pdata = { + .cfg_gpio = s3c64xx_pcm_cfg_gpio, ++ .dma_playback = DMACH_PCM1_TX, ++ .dma_capture = DMACH_PCM1_RX, + }; + + struct platform_device s3c64xx_device_pcm1 = { +@@ -196,13 +200,14 @@ static int s3c64xx_ac97_cfg_gpe(struct p + + static struct resource s3c64xx_ac97_resource[] = { + [0] = DEFINE_RES_MEM(S3C64XX_PA_AC97, SZ_256), +- [1] = DEFINE_RES_DMA(DMACH_AC97_PCMOUT), +- [2] = DEFINE_RES_DMA(DMACH_AC97_PCMIN), +- [3] = DEFINE_RES_DMA(DMACH_AC97_MICIN), +- [4] = DEFINE_RES_IRQ(IRQ_AC97), ++ [1] = DEFINE_RES_IRQ(IRQ_AC97), + }; + +-static struct s3c_audio_pdata s3c_ac97_pdata; ++static struct s3c_audio_pdata s3c_ac97_pdata = { ++ .dma_playback = DMACH_AC97_PCMOUT, ++ .dma_capture = DMACH_AC97_PCMIN, ++ .dma_capture_mic = DMACH_AC97_MICIN, ++}; + + static u64 s3c64xx_ac97_dmamask = DMA_BIT_MASK(32); + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-s3c64xx/include/mach/dma.h linux-libre-4.4.7-gnu/arch/arm/mach-s3c64xx/include/mach/dma.h +--- linux-libre-4.4-gnu/arch/arm/mach-s3c64xx/include/mach/dma.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/mach-s3c64xx/include/mach/dma.h 2016-04-12 12:09:26.000000000 -0400 +@@ -14,38 +14,38 @@ + #define S3C64XX_DMA_CHAN(name) ((unsigned long)(name)) + + /* DMA0/SDMA0 */ +-#define DMACH_UART0 S3C64XX_DMA_CHAN("uart0_tx") +-#define DMACH_UART0_SRC2 S3C64XX_DMA_CHAN("uart0_rx") +-#define DMACH_UART1 S3C64XX_DMA_CHAN("uart1_tx") +-#define DMACH_UART1_SRC2 S3C64XX_DMA_CHAN("uart1_rx") +-#define DMACH_UART2 S3C64XX_DMA_CHAN("uart2_tx") +-#define DMACH_UART2_SRC2 S3C64XX_DMA_CHAN("uart2_rx") +-#define DMACH_UART3 S3C64XX_DMA_CHAN("uart3_tx") +-#define DMACH_UART3_SRC2 S3C64XX_DMA_CHAN("uart3_rx") +-#define DMACH_PCM0_TX S3C64XX_DMA_CHAN("pcm0_tx") +-#define DMACH_PCM0_RX S3C64XX_DMA_CHAN("pcm0_rx") +-#define DMACH_I2S0_OUT S3C64XX_DMA_CHAN("i2s0_tx") +-#define DMACH_I2S0_IN S3C64XX_DMA_CHAN("i2s0_rx") ++#define DMACH_UART0 "uart0_tx" ++#define DMACH_UART0_SRC2 "uart0_rx" ++#define DMACH_UART1 "uart1_tx" ++#define DMACH_UART1_SRC2 "uart1_rx" ++#define DMACH_UART2 "uart2_tx" ++#define DMACH_UART2_SRC2 "uart2_rx" ++#define DMACH_UART3 "uart3_tx" ++#define DMACH_UART3_SRC2 "uart3_rx" ++#define DMACH_PCM0_TX "pcm0_tx" ++#define DMACH_PCM0_RX "pcm0_rx" ++#define DMACH_I2S0_OUT "i2s0_tx" ++#define DMACH_I2S0_IN "i2s0_rx" + #define DMACH_SPI0_TX S3C64XX_DMA_CHAN("spi0_tx") + #define DMACH_SPI0_RX S3C64XX_DMA_CHAN("spi0_rx") +-#define DMACH_HSI_I2SV40_TX S3C64XX_DMA_CHAN("i2s2_tx") +-#define DMACH_HSI_I2SV40_RX S3C64XX_DMA_CHAN("i2s2_rx") ++#define DMACH_HSI_I2SV40_TX "i2s2_tx" ++#define DMACH_HSI_I2SV40_RX "i2s2_rx" + + /* DMA1/SDMA1 */ +-#define DMACH_PCM1_TX S3C64XX_DMA_CHAN("pcm1_tx") +-#define DMACH_PCM1_RX S3C64XX_DMA_CHAN("pcm1_rx") +-#define DMACH_I2S1_OUT S3C64XX_DMA_CHAN("i2s1_tx") +-#define DMACH_I2S1_IN S3C64XX_DMA_CHAN("i2s1_rx") ++#define DMACH_PCM1_TX "pcm1_tx" ++#define DMACH_PCM1_RX "pcm1_rx" ++#define DMACH_I2S1_OUT "i2s1_tx" ++#define DMACH_I2S1_IN "i2s1_rx" + #define DMACH_SPI1_TX S3C64XX_DMA_CHAN("spi1_tx") + #define DMACH_SPI1_RX S3C64XX_DMA_CHAN("spi1_rx") +-#define DMACH_AC97_PCMOUT S3C64XX_DMA_CHAN("ac97_out") +-#define DMACH_AC97_PCMIN S3C64XX_DMA_CHAN("ac97_in") +-#define DMACH_AC97_MICIN S3C64XX_DMA_CHAN("ac97_mic") +-#define DMACH_PWM S3C64XX_DMA_CHAN("pwm") +-#define DMACH_IRDA S3C64XX_DMA_CHAN("irda") +-#define DMACH_EXTERNAL S3C64XX_DMA_CHAN("external") +-#define DMACH_SECURITY_RX S3C64XX_DMA_CHAN("sec_rx") +-#define DMACH_SECURITY_TX S3C64XX_DMA_CHAN("sec_tx") ++#define DMACH_AC97_PCMOUT "ac97_out" ++#define DMACH_AC97_PCMIN "ac97_in" ++#define DMACH_AC97_MICIN "ac97_mic" ++#define DMACH_PWM "pwm" ++#define DMACH_IRDA "irda" ++#define DMACH_EXTERNAL "external" ++#define DMACH_SECURITY_RX "sec_rx" ++#define DMACH_SECURITY_TX "sec_tx" + + enum dma_ch { + DMACH_MAX = 32 +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/plat-samsung/devs.c linux-libre-4.4.7-gnu/arch/arm/plat-samsung/devs.c +--- linux-libre-4.4-gnu/arch/arm/plat-samsung/devs.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm/plat-samsung/devs.c 2016-04-12 12:09:26.000000000 -0400 +@@ -65,6 +65,7 @@ + #include <linux/platform_data/usb-ohci-s3c2410.h> + #include <plat/usb-phy.h> + #include <plat/regs-spi.h> ++#include <linux/platform_data/asoc-s3c.h> + #include <linux/platform_data/spi-s3c64xx.h> + + static u64 samsung_device_dma_mask = DMA_BIT_MASK(32); +@@ -74,9 +75,12 @@ static u64 samsung_device_dma_mask = DMA + static struct resource s3c_ac97_resource[] = { + [0] = DEFINE_RES_MEM(S3C2440_PA_AC97, S3C2440_SZ_AC97), + [1] = DEFINE_RES_IRQ(IRQ_S3C244X_AC97), +- [2] = DEFINE_RES_DMA_NAMED(DMACH_PCM_OUT, "PCM out"), +- [3] = DEFINE_RES_DMA_NAMED(DMACH_PCM_IN, "PCM in"), +- [4] = DEFINE_RES_DMA_NAMED(DMACH_MIC_IN, "Mic in"), ++}; ++ ++static struct s3c_audio_pdata s3c_ac97_pdata = { ++ .dma_playback = (void *)DMACH_PCM_OUT, ++ .dma_capture = (void *)DMACH_PCM_IN, ++ .dma_capture_mic = (void *)DMACH_MIC_IN, + }; + + struct platform_device s3c_device_ac97 = { +@@ -87,6 +91,7 @@ struct platform_device s3c_device_ac97 = + .dev = { + .dma_mask = &samsung_device_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), ++ .platform_data = &s3c_ac97_pdata, + } + }; + #endif /* CONFIG_CPU_S3C2440 */ +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/pgtable.h linux-libre-4.4.7-gnu/arch/arm64/include/asm/pgtable.h +--- linux-libre-4.4-gnu/arch/arm64/include/asm/pgtable.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm64/include/asm/pgtable.h 2016-04-12 12:09:26.000000000 -0400 +@@ -34,7 +34,7 @@ + /* + * VMALLOC and SPARSEMEM_VMEMMAP ranges. + * +- * VMEMAP_SIZE: allows the whole VA space to be covered by a struct page array ++ * VMEMAP_SIZE: allows the whole linear region to be covered by a struct page array + * (rounded up to PUD_SIZE). + * VMALLOC_START: beginning of the kernel VA space + * VMALLOC_END: extends to the available space below vmmemmap, PCI I/O space, +@@ -51,7 +51,9 @@ + + #define VMALLOC_END (PAGE_OFFSET - PUD_SIZE - VMEMMAP_SIZE - SZ_64K) + +-#define vmemmap ((struct page *)(VMALLOC_END + SZ_64K)) ++#define VMEMMAP_START (VMALLOC_END + SZ_64K) ++#define vmemmap ((struct page *)VMEMMAP_START - \ ++ SECTION_ALIGN_DOWN(memstart_addr >> PAGE_SHIFT)) + + #define FIRST_USER_ADDRESS 0UL + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/head.S linux-libre-4.4.7-gnu/arch/arm64/kernel/head.S +--- linux-libre-4.4-gnu/arch/arm64/kernel/head.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm64/kernel/head.S 2016-04-12 12:09:26.000000000 -0400 +@@ -512,9 +512,14 @@ CPU_LE( movk x0, #0x30d0, lsl #16 ) // C + #endif + + /* EL2 debug */ ++ mrs x0, id_aa64dfr0_el1 // Check ID_AA64DFR0_EL1 PMUVer ++ sbfx x0, x0, #8, #4 ++ cmp x0, #1 ++ b.lt 4f // Skip if no PMU present + mrs x0, pmcr_el0 // Disable debug access traps + ubfx x0, x0, #11, #5 // to EL2 and allow access to + msr mdcr_el2, x0 // all PMU counters from EL1 ++4: + + /* Stage-2 translation */ + msr vttbr_el2, xzr +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/perf_event.c linux-libre-4.4.7-gnu/arch/arm64/kernel/perf_event.c +--- linux-libre-4.4-gnu/arch/arm64/kernel/perf_event.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm64/kernel/perf_event.c 2016-04-12 12:09:26.000000000 -0400 +@@ -574,9 +574,6 @@ static void armv8pmu_reset(void *info) + + /* Initialize & Reset PMNC: C and P bits. */ + armv8pmu_pmcr_write(ARMV8_PMCR_P | ARMV8_PMCR_C); +- +- /* Disable access from userspace. */ +- asm volatile("msr pmuserenr_el0, %0" :: "r" (0)); + } + + static int armv8_pmuv3_map_event(struct perf_event *event) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/ptrace.c linux-libre-4.4.7-gnu/arch/arm64/kernel/ptrace.c +--- linux-libre-4.4-gnu/arch/arm64/kernel/ptrace.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm64/kernel/ptrace.c 2016-04-12 12:09:26.000000000 -0400 +@@ -58,6 +58,12 @@ + */ + void ptrace_disable(struct task_struct *child) + { ++ /* ++ * This would be better off in core code, but PTRACE_DETACH has ++ * grown its fair share of arch-specific worts and changing it ++ * is likely to cause regressions on obscure architectures. ++ */ ++ user_disable_single_step(child); + } + + #ifdef CONFIG_HAVE_HW_BREAKPOINT +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kvm/guest.c linux-libre-4.4.7-gnu/arch/arm64/kvm/guest.c +--- linux-libre-4.4-gnu/arch/arm64/kvm/guest.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm64/kvm/guest.c 2016-04-12 12:09:26.000000000 -0400 +@@ -186,7 +186,7 @@ static int get_timer_reg(struct kvm_vcpu + u64 val; + + val = kvm_arm_timer_get_reg(vcpu, reg->id); +- return copy_to_user(uaddr, &val, KVM_REG_SIZE(reg->id)); ++ return copy_to_user(uaddr, &val, KVM_REG_SIZE(reg->id)) ? -EFAULT : 0; + } + + /** +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/Makefile linux-libre-4.4.7-gnu/arch/arm64/Makefile +--- linux-libre-4.4-gnu/arch/arm64/Makefile 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm64/Makefile 2016-04-12 12:09:26.000000000 -0400 +@@ -27,6 +27,7 @@ $(warning LSE atomics not supported by b + endif + + KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr) ++KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads) + KBUILD_AFLAGS += $(lseinstr) + + ifeq ($(CONFIG_CPU_BIG_ENDIAN), y) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/mm/dma-mapping.c linux-libre-4.4.7-gnu/arch/arm64/mm/dma-mapping.c +--- linux-libre-4.4-gnu/arch/arm64/mm/dma-mapping.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm64/mm/dma-mapping.c 2016-04-12 12:09:26.000000000 -0400 +@@ -933,6 +933,10 @@ static int __init __iommu_dma_init(void) + ret = register_iommu_dma_ops_notifier(&platform_bus_type); + if (!ret) + ret = register_iommu_dma_ops_notifier(&amba_bustype); ++ ++ /* handle devices queued before this arch_initcall */ ++ if (!ret) ++ __iommu_attach_notifier(NULL, BUS_NOTIFY_ADD_DEVICE, NULL); + return ret; + } + arch_initcall(__iommu_dma_init); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/mm/init.c linux-libre-4.4.7-gnu/arch/arm64/mm/init.c +--- linux-libre-4.4-gnu/arch/arm64/mm/init.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm64/mm/init.c 2016-04-12 12:09:26.000000000 -0400 +@@ -319,8 +319,8 @@ void __init mem_init(void) + #endif + MLG(VMALLOC_START, VMALLOC_END), + #ifdef CONFIG_SPARSEMEM_VMEMMAP +- MLG((unsigned long)vmemmap, +- (unsigned long)vmemmap + VMEMMAP_SIZE), ++ MLG(VMEMMAP_START, ++ VMEMMAP_START + VMEMMAP_SIZE), + MLM((unsigned long)virt_to_page(PAGE_OFFSET), + (unsigned long)virt_to_page(high_memory)), + #endif +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/mm/mmu.c linux-libre-4.4.7-gnu/arch/arm64/mm/mmu.c +--- linux-libre-4.4-gnu/arch/arm64/mm/mmu.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm64/mm/mmu.c 2016-04-12 12:09:26.000000000 -0400 +@@ -456,6 +456,9 @@ void __init paging_init(void) + + empty_zero_page = virt_to_page(zero_page); + ++ /* Ensure the zero page is visible to the page table walker */ ++ dsb(ishst); ++ + /* + * TTBR0 is only used for the identity mapping at this stage. Make it + * point to zero page to avoid speculatively fetching new entries. +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/mm/pageattr.c linux-libre-4.4.7-gnu/arch/arm64/mm/pageattr.c +--- linux-libre-4.4-gnu/arch/arm64/mm/pageattr.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm64/mm/pageattr.c 2016-04-12 12:09:26.000000000 -0400 +@@ -57,6 +57,9 @@ static int change_memory_common(unsigned + if (end < MODULES_VADDR || end >= MODULES_END) + return -EINVAL; + ++ if (!numpages) ++ return 0; ++ + data.set_mask = set_mask; + data.clear_mask = clear_mask; + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/mm/proc-macros.S linux-libre-4.4.7-gnu/arch/arm64/mm/proc-macros.S +--- linux-libre-4.4-gnu/arch/arm64/mm/proc-macros.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm64/mm/proc-macros.S 2016-04-12 12:09:26.000000000 -0400 +@@ -62,3 +62,15 @@ + bfi \valreg, \tmpreg, #TCR_T0SZ_OFFSET, #TCR_TxSZ_WIDTH + #endif + .endm ++ ++/* ++ * reset_pmuserenr_el0 - reset PMUSERENR_EL0 if PMUv3 present ++ */ ++ .macro reset_pmuserenr_el0, tmpreg ++ mrs \tmpreg, id_aa64dfr0_el1 // Check ID_AA64DFR0_EL1 PMUVer ++ sbfx \tmpreg, \tmpreg, #8, #4 ++ cmp \tmpreg, #1 // Skip if no PMU present ++ b.lt 9000f ++ msr pmuserenr_el0, xzr // Disable PMU access from EL0 ++9000: ++ .endm +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/mm/proc.S linux-libre-4.4.7-gnu/arch/arm64/mm/proc.S +--- linux-libre-4.4-gnu/arch/arm64/mm/proc.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/arm64/mm/proc.S 2016-04-12 12:09:26.000000000 -0400 +@@ -117,6 +117,7 @@ ENTRY(cpu_do_resume) + */ + ubfx x11, x11, #1, #1 + msr oslar_el1, x11 ++ reset_pmuserenr_el0 x0 // Disable PMU access from EL0 + mov x0, x12 + dsb nsh // Make sure local tlb invalidation completed + isb +@@ -155,6 +156,7 @@ ENTRY(__cpu_setup) + msr cpacr_el1, x0 // Enable FP/ASIMD + mov x0, #1 << 12 // Reset mdscr_el1 and disable + msr mdscr_el1, x0 // access to the DCC from EL0 ++ reset_pmuserenr_el0 x0 // Disable PMU access from EL0 + /* + * Memory region attributes for LPAE: + * +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/ia64/include/asm/io.h linux-libre-4.4.7-gnu/arch/ia64/include/asm/io.h +--- linux-libre-4.4-gnu/arch/ia64/include/asm/io.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/ia64/include/asm/io.h 2016-04-12 12:09:26.000000000 -0400 +@@ -436,6 +436,7 @@ static inline void __iomem * ioremap_cac + return ioremap(phys_addr, size); + } + #define ioremap_cache ioremap_cache ++#define ioremap_uc ioremap_nocache + + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/m32r/kernel/setup.c linux-libre-4.4.7-gnu/arch/m32r/kernel/setup.c +--- linux-libre-4.4-gnu/arch/m32r/kernel/setup.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/m32r/kernel/setup.c 2016-04-12 12:09:26.000000000 -0400 +@@ -81,7 +81,10 @@ static struct resource code_resource = { + }; + + unsigned long memory_start; ++EXPORT_SYMBOL(memory_start); ++ + unsigned long memory_end; ++EXPORT_SYMBOL(memory_end); + + void __init setup_arch(char **); + int get_cpuinfo(char *); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/page.h linux-libre-4.4.7-gnu/arch/mips/include/asm/page.h +--- linux-libre-4.4-gnu/arch/mips/include/asm/page.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/mips/include/asm/page.h 2016-04-12 12:09:26.000000000 -0400 +@@ -33,7 +33,7 @@ + #define PAGE_SHIFT 16 + #endif + #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) +-#define PAGE_MASK (~(PAGE_SIZE - 1)) ++#define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) + + /* + * This is used for calculating the real page sizes +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/pgtable.h linux-libre-4.4.7-gnu/arch/mips/include/asm/pgtable.h +--- linux-libre-4.4-gnu/arch/mips/include/asm/pgtable.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/mips/include/asm/pgtable.h 2016-04-12 12:09:26.000000000 -0400 +@@ -353,7 +353,7 @@ static inline pte_t pte_mkdirty(pte_t pt + static inline pte_t pte_mkyoung(pte_t pte) + { + pte_val(pte) |= _PAGE_ACCESSED; +-#ifdef CONFIG_CPU_MIPSR2 ++#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) + if (!(pte_val(pte) & _PAGE_NO_READ)) + pte_val(pte) |= _PAGE_SILENT_READ; + else +@@ -560,7 +560,7 @@ static inline pmd_t pmd_mkyoung(pmd_t pm + { + pmd_val(pmd) |= _PAGE_ACCESSED; + +-#ifdef CONFIG_CPU_MIPSR2 ++#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) + if (!(pmd_val(pmd) & _PAGE_NO_READ)) + pmd_val(pmd) |= _PAGE_SILENT_READ; + else +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/syscall.h linux-libre-4.4.7-gnu/arch/mips/include/asm/syscall.h +--- linux-libre-4.4-gnu/arch/mips/include/asm/syscall.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/mips/include/asm/syscall.h 2016-04-12 12:09:26.000000000 -0400 +@@ -101,10 +101,8 @@ static inline void syscall_get_arguments + /* O32 ABI syscall() - Either 64-bit with O32 or 32-bit */ + if ((config_enabled(CONFIG_32BIT) || + test_tsk_thread_flag(task, TIF_32BIT_REGS)) && +- (regs->regs[2] == __NR_syscall)) { ++ (regs->regs[2] == __NR_syscall)) + i++; +- n++; +- } + + while (n--) + ret |= mips_get_syscall_arg(args++, task, regs, i++); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/Kconfig linux-libre-4.4.7-gnu/arch/mips/Kconfig +--- linux-libre-4.4-gnu/arch/mips/Kconfig 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/mips/Kconfig 2016-04-12 12:09:26.000000000 -0400 +@@ -2155,7 +2155,7 @@ config MIPS_MT_SMP + select CPU_MIPSR2_IRQ_VI + select CPU_MIPSR2_IRQ_EI + select SYNC_R4K +- select MIPS_GIC_IPI ++ select MIPS_GIC_IPI if MIPS_GIC + select MIPS_MT + select SMP + select SMP_UP +@@ -2253,7 +2253,7 @@ config MIPS_VPE_APSP_API_MT + config MIPS_CMP + bool "MIPS CMP framework support (DEPRECATED)" + depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 +- select MIPS_GIC_IPI ++ select MIPS_GIC_IPI if MIPS_GIC + select SMP + select SYNC_R4K + select SYS_SUPPORTS_SMP +@@ -2273,7 +2273,7 @@ config MIPS_CPS + select MIPS_CM + select MIPS_CPC + select MIPS_CPS_PM if HOTPLUG_CPU +- select MIPS_GIC_IPI ++ select MIPS_GIC_IPI if MIPS_GIC + select SMP + select SYNC_R4K if (CEVT_R4K || CSRC_R4K) + select SYS_SUPPORTS_HOTPLUG_CPU +@@ -2292,6 +2292,7 @@ config MIPS_CPS_PM + bool + + config MIPS_GIC_IPI ++ depends on MIPS_GIC + bool + + config MIPS_CM +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/smp.c linux-libre-4.4.7-gnu/arch/mips/kernel/smp.c +--- linux-libre-4.4-gnu/arch/mips/kernel/smp.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/mips/kernel/smp.c 2016-04-12 12:09:26.000000000 -0400 +@@ -121,6 +121,7 @@ static inline void calculate_cpu_foreign + cpumask_t temp_foreign_map; + + /* Re-calculate the mask */ ++ cpumask_clear(&temp_foreign_map); + for_each_online_cpu(i) { + core_present = 0; + for_each_cpu(k, &temp_foreign_map) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/traps.c linux-libre-4.4.7-gnu/arch/mips/kernel/traps.c +--- linux-libre-4.4-gnu/arch/mips/kernel/traps.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/mips/kernel/traps.c 2016-04-12 12:09:26.000000000 -0400 +@@ -690,15 +690,15 @@ static int simulate_sync(struct pt_regs + asmlinkage void do_ov(struct pt_regs *regs) + { + enum ctx_state prev_state; +- siginfo_t info; ++ siginfo_t info = { ++ .si_signo = SIGFPE, ++ .si_code = FPE_INTOVF, ++ .si_addr = (void __user *)regs->cp0_epc, ++ }; + + prev_state = exception_enter(); + die_if_kernel("Integer overflow", regs); + +- info.si_code = FPE_INTOVF; +- info.si_signo = SIGFPE; +- info.si_errno = 0; +- info.si_addr = (void __user *) regs->cp0_epc; + force_sig_info(SIGFPE, &info, current); + exception_exit(prev_state); + } +@@ -874,7 +874,7 @@ out: + void do_trap_or_bp(struct pt_regs *regs, unsigned int code, + const char *str) + { +- siginfo_t info; ++ siginfo_t info = { 0 }; + char b[40]; + + #ifdef CONFIG_KGDB_LOW_LEVEL_TRAP +@@ -903,7 +903,6 @@ void do_trap_or_bp(struct pt_regs *regs, + else + info.si_code = FPE_INTOVF; + info.si_signo = SIGFPE; +- info.si_errno = 0; + info.si_addr = (void __user *) regs->cp0_epc; + force_sig_info(SIGFPE, &info, current); + break; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kvm/mips.c linux-libre-4.4.7-gnu/arch/mips/kvm/mips.c +--- linux-libre-4.4-gnu/arch/mips/kvm/mips.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/mips/kvm/mips.c 2016-04-12 12:09:26.000000000 -0400 +@@ -702,7 +702,7 @@ static int kvm_mips_get_reg(struct kvm_v + } else if ((reg->id & KVM_REG_SIZE_MASK) == KVM_REG_SIZE_U128) { + void __user *uaddr = (void __user *)(long)reg->addr; + +- return copy_to_user(uaddr, vs, 16); ++ return copy_to_user(uaddr, vs, 16) ? -EFAULT : 0; + } else { + return -EINVAL; + } +@@ -732,7 +732,7 @@ static int kvm_mips_set_reg(struct kvm_v + } else if ((reg->id & KVM_REG_SIZE_MASK) == KVM_REG_SIZE_U128) { + void __user *uaddr = (void __user *)(long)reg->addr; + +- return copy_from_user(vs, uaddr, 16); ++ return copy_from_user(vs, uaddr, 16) ? -EFAULT : 0; + } else { + return -EINVAL; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/loongson64/loongson-3/hpet.c linux-libre-4.4.7-gnu/arch/mips/loongson64/loongson-3/hpet.c +--- linux-libre-4.4-gnu/arch/mips/loongson64/loongson-3/hpet.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/mips/loongson64/loongson-3/hpet.c 2016-04-12 12:09:26.000000000 -0400 +@@ -13,6 +13,9 @@ + #define SMBUS_PCI_REG64 0x64 + #define SMBUS_PCI_REGB4 0xb4 + ++#define HPET_MIN_CYCLES 64 ++#define HPET_MIN_PROG_DELTA (HPET_MIN_CYCLES + (HPET_MIN_CYCLES >> 1)) ++ + static DEFINE_SPINLOCK(hpet_lock); + DEFINE_PER_CPU(struct clock_event_device, hpet_clockevent_device); + +@@ -161,8 +164,9 @@ static int hpet_next_event(unsigned long + cnt += delta; + hpet_write(HPET_T0_CMP, cnt); + +- res = ((int)(hpet_read(HPET_COUNTER) - cnt) > 0) ? -ETIME : 0; +- return res; ++ res = (int)(cnt - hpet_read(HPET_COUNTER)); ++ ++ return res < HPET_MIN_CYCLES ? -ETIME : 0; + } + + static irqreturn_t hpet_irq_handler(int irq, void *data) +@@ -237,7 +241,7 @@ void __init setup_hpet_timer(void) + cd->cpumask = cpumask_of(cpu); + clockevent_set_clock(cd, HPET_FREQ); + cd->max_delta_ns = clockevent_delta2ns(0x7fffffff, cd); +- cd->min_delta_ns = 5000; ++ cd->min_delta_ns = clockevent_delta2ns(HPET_MIN_PROG_DELTA, cd); + + clockevents_register_device(cd); + setup_irq(HPET_T0_IRQ, &hpet_irq); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/loongson64/loongson-3/smp.c linux-libre-4.4.7-gnu/arch/mips/loongson64/loongson-3/smp.c +--- linux-libre-4.4-gnu/arch/mips/loongson64/loongson-3/smp.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/mips/loongson64/loongson-3/smp.c 2016-04-12 12:09:26.000000000 -0400 +@@ -30,13 +30,13 @@ + #include "smp.h" + + DEFINE_PER_CPU(int, cpu_state); +-DEFINE_PER_CPU(uint32_t, core0_c0count); + + static void *ipi_set0_regs[16]; + static void *ipi_clear0_regs[16]; + static void *ipi_status0_regs[16]; + static void *ipi_en0_regs[16]; + static void *ipi_mailbox_buf[16]; ++static uint32_t core0_c0count[NR_CPUS]; + + /* read a 32bit value from ipi register */ + #define loongson3_ipi_read32(addr) readl(addr) +@@ -275,12 +275,14 @@ void loongson3_ipi_interrupt(struct pt_r + if (action & SMP_ASK_C0COUNT) { + BUG_ON(cpu != 0); + c0count = read_c0_count(); +- for (i = 1; i < num_possible_cpus(); i++) +- per_cpu(core0_c0count, i) = c0count; ++ c0count = c0count ? c0count : 1; ++ for (i = 1; i < nr_cpu_ids; i++) ++ core0_c0count[i] = c0count; ++ __wbflush(); /* Let others see the result ASAP */ + } + } + +-#define MAX_LOOPS 1111 ++#define MAX_LOOPS 800 + /* + * SMP init and finish on secondary CPUs + */ +@@ -305,16 +307,20 @@ static void loongson3_init_secondary(voi + cpu_logical_map(cpu) / loongson_sysconf.cores_per_package; + + i = 0; +- __this_cpu_write(core0_c0count, 0); ++ core0_c0count[cpu] = 0; + loongson3_send_ipi_single(0, SMP_ASK_C0COUNT); +- while (!__this_cpu_read(core0_c0count)) { ++ while (!core0_c0count[cpu]) { + i++; + cpu_relax(); + } + + if (i > MAX_LOOPS) + i = MAX_LOOPS; +- initcount = __this_cpu_read(core0_c0count) + i; ++ if (cpu_data[cpu].package) ++ initcount = core0_c0count[cpu] + i; ++ else /* Local access is faster for loops */ ++ initcount = core0_c0count[cpu] + i/2; ++ + write_c0_count(initcount); + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/mm/sc-mips.c linux-libre-4.4.7-gnu/arch/mips/mm/sc-mips.c +--- linux-libre-4.4-gnu/arch/mips/mm/sc-mips.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/mips/mm/sc-mips.c 2016-04-12 12:09:26.000000000 -0400 +@@ -164,11 +164,13 @@ static int __init mips_sc_probe_cm3(void + + sets = cfg & CM_GCR_L2_CONFIG_SET_SIZE_MSK; + sets >>= CM_GCR_L2_CONFIG_SET_SIZE_SHF; +- c->scache.sets = 64 << sets; ++ if (sets) ++ c->scache.sets = 64 << sets; + + line_sz = cfg & CM_GCR_L2_CONFIG_LINE_SIZE_MSK; + line_sz >>= CM_GCR_L2_CONFIG_LINE_SIZE_SHF; +- c->scache.linesz = 2 << line_sz; ++ if (line_sz) ++ c->scache.linesz = 2 << line_sz; + + assoc = cfg & CM_GCR_L2_CONFIG_ASSOC_MSK; + assoc >>= CM_GCR_L2_CONFIG_ASSOC_SHF; +@@ -176,9 +178,12 @@ static int __init mips_sc_probe_cm3(void + c->scache.waysize = c->scache.sets * c->scache.linesz; + c->scache.waybit = __ffs(c->scache.waysize); + +- c->scache.flags &= ~MIPS_CACHE_NOT_PRESENT; ++ if (c->scache.linesz) { ++ c->scache.flags &= ~MIPS_CACHE_NOT_PRESENT; ++ return 1; ++ } + +- return 1; ++ return 0; + } + + void __weak platform_early_l2_init(void) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/mm/tlbex.c linux-libre-4.4.7-gnu/arch/mips/mm/tlbex.c +--- linux-libre-4.4-gnu/arch/mips/mm/tlbex.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/mips/mm/tlbex.c 2016-04-12 12:09:26.000000000 -0400 +@@ -242,7 +242,7 @@ static void output_pgtable_bits_defines( + pr_define("_PAGE_HUGE_SHIFT %d\n", _PAGE_HUGE_SHIFT); + pr_define("_PAGE_SPLITTING_SHIFT %d\n", _PAGE_SPLITTING_SHIFT); + #endif +-#ifdef CONFIG_CPU_MIPSR2 ++#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) + if (cpu_has_rixi) { + #ifdef _PAGE_NO_EXEC_SHIFT + pr_define("_PAGE_NO_EXEC_SHIFT %d\n", _PAGE_NO_EXEC_SHIFT); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/include/asm/hugetlb.h linux-libre-4.4.7-gnu/arch/parisc/include/asm/hugetlb.h +--- linux-libre-4.4-gnu/arch/parisc/include/asm/hugetlb.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/parisc/include/asm/hugetlb.h 2016-04-12 12:09:26.000000000 -0400 +@@ -54,24 +54,12 @@ static inline pte_t huge_pte_wrprotect(p + return pte_wrprotect(pte); + } + +-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, +- unsigned long addr, pte_t *ptep) +-{ +- pte_t old_pte = *ptep; +- set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte)); +-} ++void huge_ptep_set_wrprotect(struct mm_struct *mm, ++ unsigned long addr, pte_t *ptep); + +-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, ++int huge_ptep_set_access_flags(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep, +- pte_t pte, int dirty) +-{ +- int changed = !pte_same(*ptep, pte); +- if (changed) { +- set_huge_pte_at(vma->vm_mm, addr, ptep, pte); +- flush_tlb_page(vma, addr); +- } +- return changed; +-} ++ pte_t pte, int dirty); + + static inline pte_t huge_ptep_get(pte_t *ptep) + { +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/include/uapi/asm/siginfo.h linux-libre-4.4.7-gnu/arch/parisc/include/uapi/asm/siginfo.h +--- linux-libre-4.4-gnu/arch/parisc/include/uapi/asm/siginfo.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/parisc/include/uapi/asm/siginfo.h 2016-04-12 12:09:26.000000000 -0400 +@@ -1,6 +1,10 @@ + #ifndef _PARISC_SIGINFO_H + #define _PARISC_SIGINFO_H + ++#if defined(__LP64__) ++#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int)) ++#endif ++ + #include <asm-generic/siginfo.h> + + #undef NSIGTRAP +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/ptrace.c linux-libre-4.4.7-gnu/arch/parisc/kernel/ptrace.c +--- linux-libre-4.4-gnu/arch/parisc/kernel/ptrace.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/parisc/kernel/ptrace.c 2016-04-12 12:09:26.000000000 -0400 +@@ -269,14 +269,19 @@ long compat_arch_ptrace(struct task_stru + + long do_syscall_trace_enter(struct pt_regs *regs) + { +- long ret = 0; +- + /* Do the secure computing check first. */ + secure_computing_strict(regs->gr[20]); + + if (test_thread_flag(TIF_SYSCALL_TRACE) && +- tracehook_report_syscall_entry(regs)) +- ret = -1L; ++ tracehook_report_syscall_entry(regs)) { ++ /* ++ * Tracing decided this syscall should not happen or the ++ * debugger stored an invalid system call number. Skip ++ * the system call and the system call restart handling. ++ */ ++ regs->gr[20] = -1UL; ++ goto out; ++ } + + #ifdef CONFIG_64BIT + if (!is_compat_task()) +@@ -290,7 +295,8 @@ long do_syscall_trace_enter(struct pt_re + regs->gr[24] & 0xffffffff, + regs->gr[23] & 0xffffffff); + +- return ret ? : regs->gr[20]; ++out: ++ return regs->gr[20]; + } + + void do_syscall_trace_exit(struct pt_regs *regs) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/syscall.S linux-libre-4.4.7-gnu/arch/parisc/kernel/syscall.S +--- linux-libre-4.4-gnu/arch/parisc/kernel/syscall.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/parisc/kernel/syscall.S 2016-04-12 12:09:26.000000000 -0400 +@@ -343,7 +343,7 @@ tracesys_next: + #endif + + comiclr,>>= __NR_Linux_syscalls, %r20, %r0 +- b,n .Lsyscall_nosys ++ b,n .Ltracesys_nosys + + LDREGX %r20(%r19), %r19 + +@@ -359,6 +359,9 @@ tracesys_next: + be 0(%sr7,%r19) + ldo R%tracesys_exit(%r2),%r2 + ++.Ltracesys_nosys: ++ ldo -ENOSYS(%r0),%r28 /* set errno */ ++ + /* Do *not* call this function on the gateway page, because it + makes a direct call to syscall_trace. */ + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/mm/hugetlbpage.c linux-libre-4.4.7-gnu/arch/parisc/mm/hugetlbpage.c +--- linux-libre-4.4-gnu/arch/parisc/mm/hugetlbpage.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/parisc/mm/hugetlbpage.c 2016-04-12 12:09:26.000000000 -0400 +@@ -105,15 +105,13 @@ static inline void purge_tlb_entries_hug + addr |= _HUGE_PAGE_SIZE_ENCODING_DEFAULT; + + for (i = 0; i < (1 << (HPAGE_SHIFT-REAL_HPAGE_SHIFT)); i++) { +- mtsp(mm->context, 1); +- pdtlb(addr); +- if (unlikely(split_tlb)) +- pitlb(addr); ++ purge_tlb_entries(mm, addr); + addr += (1UL << REAL_HPAGE_SHIFT); + } + } + +-void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, ++/* __set_huge_pte_at() must be called holding the pa_tlb_lock. */ ++static void __set_huge_pte_at(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t entry) + { + unsigned long addr_start; +@@ -123,14 +121,9 @@ void set_huge_pte_at(struct mm_struct *m + addr_start = addr; + + for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) { +- /* Directly write pte entry. We could call set_pte_at(mm, addr, ptep, entry) +- * instead, but then we get double locking on pa_tlb_lock. */ +- *ptep = entry; ++ set_pte(ptep, entry); + ptep++; + +- /* Drop the PAGE_SIZE/non-huge tlb entry */ +- purge_tlb_entries(mm, addr); +- + addr += PAGE_SIZE; + pte_val(entry) += PAGE_SIZE; + } +@@ -138,18 +131,61 @@ void set_huge_pte_at(struct mm_struct *m + purge_tlb_entries_huge(mm, addr_start); + } + ++void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, ++ pte_t *ptep, pte_t entry) ++{ ++ unsigned long flags; ++ ++ purge_tlb_start(flags); ++ __set_huge_pte_at(mm, addr, ptep, entry); ++ purge_tlb_end(flags); ++} ++ + + pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, + pte_t *ptep) + { ++ unsigned long flags; + pte_t entry; + ++ purge_tlb_start(flags); + entry = *ptep; +- set_huge_pte_at(mm, addr, ptep, __pte(0)); ++ __set_huge_pte_at(mm, addr, ptep, __pte(0)); ++ purge_tlb_end(flags); + + return entry; + } + ++ ++void huge_ptep_set_wrprotect(struct mm_struct *mm, ++ unsigned long addr, pte_t *ptep) ++{ ++ unsigned long flags; ++ pte_t old_pte; ++ ++ purge_tlb_start(flags); ++ old_pte = *ptep; ++ __set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte)); ++ purge_tlb_end(flags); ++} ++ ++int huge_ptep_set_access_flags(struct vm_area_struct *vma, ++ unsigned long addr, pte_t *ptep, ++ pte_t pte, int dirty) ++{ ++ unsigned long flags; ++ int changed; ++ ++ purge_tlb_start(flags); ++ changed = !pte_same(*ptep, pte); ++ if (changed) { ++ __set_huge_pte_at(vma->vm_mm, addr, ptep, pte); ++ } ++ purge_tlb_end(flags); ++ return changed; ++} ++ ++ + int pmd_huge(pmd_t pmd) + { + return 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/cmpxchg.h linux-libre-4.4.7-gnu/arch/powerpc/include/asm/cmpxchg.h +--- linux-libre-4.4-gnu/arch/powerpc/include/asm/cmpxchg.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/include/asm/cmpxchg.h 2016-04-12 12:09:26.000000000 -0400 +@@ -18,12 +18,12 @@ __xchg_u32(volatile void *p, unsigned lo + unsigned long prev; + + __asm__ __volatile__( +- PPC_RELEASE_BARRIER ++ PPC_ATOMIC_ENTRY_BARRIER + "1: lwarx %0,0,%2 \n" + PPC405_ERR77(0,%2) + " stwcx. %3,0,%2 \n\ + bne- 1b" +- PPC_ACQUIRE_BARRIER ++ PPC_ATOMIC_EXIT_BARRIER + : "=&r" (prev), "+m" (*(volatile unsigned int *)p) + : "r" (p), "r" (val) + : "cc", "memory"); +@@ -61,12 +61,12 @@ __xchg_u64(volatile void *p, unsigned lo + unsigned long prev; + + __asm__ __volatile__( +- PPC_RELEASE_BARRIER ++ PPC_ATOMIC_ENTRY_BARRIER + "1: ldarx %0,0,%2 \n" + PPC405_ERR77(0,%2) + " stdcx. %3,0,%2 \n\ + bne- 1b" +- PPC_ACQUIRE_BARRIER ++ PPC_ATOMIC_EXIT_BARRIER + : "=&r" (prev), "+m" (*(volatile unsigned long *)p) + : "r" (p), "r" (val) + : "cc", "memory"); +@@ -151,14 +151,14 @@ __cmpxchg_u32(volatile unsigned int *p, + unsigned int prev; + + __asm__ __volatile__ ( +- PPC_RELEASE_BARRIER ++ PPC_ATOMIC_ENTRY_BARRIER + "1: lwarx %0,0,%2 # __cmpxchg_u32\n\ + cmpw 0,%0,%3\n\ + bne- 2f\n" + PPC405_ERR77(0,%2) + " stwcx. %4,0,%2\n\ + bne- 1b" +- PPC_ACQUIRE_BARRIER ++ PPC_ATOMIC_EXIT_BARRIER + "\n\ + 2:" + : "=&r" (prev), "+m" (*p) +@@ -197,13 +197,13 @@ __cmpxchg_u64(volatile unsigned long *p, + unsigned long prev; + + __asm__ __volatile__ ( +- PPC_RELEASE_BARRIER ++ PPC_ATOMIC_ENTRY_BARRIER + "1: ldarx %0,0,%2 # __cmpxchg_u64\n\ + cmpd 0,%0,%3\n\ + bne- 2f\n\ + stdcx. %4,0,%2\n\ + bne- 1b" +- PPC_ACQUIRE_BARRIER ++ PPC_ATOMIC_EXIT_BARRIER + "\n\ + 2:" + : "=&r" (prev), "+m" (*p) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/eeh.h linux-libre-4.4.7-gnu/arch/powerpc/include/asm/eeh.h +--- linux-libre-4.4-gnu/arch/powerpc/include/asm/eeh.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/include/asm/eeh.h 2016-04-12 12:09:26.000000000 -0400 +@@ -81,6 +81,7 @@ struct pci_dn; + #define EEH_PE_KEEP (1 << 8) /* Keep PE on hotplug */ + #define EEH_PE_CFG_RESTRICTED (1 << 9) /* Block config on error */ + #define EEH_PE_REMOVED (1 << 10) /* Removed permanently */ ++#define EEH_PE_PRI_BUS (1 << 11) /* Cached primary bus */ + + struct eeh_pe { + int type; /* PE type: PHB/Bus/Device */ +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/opal-api.h linux-libre-4.4.7-gnu/arch/powerpc/include/asm/opal-api.h +--- linux-libre-4.4-gnu/arch/powerpc/include/asm/opal-api.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/include/asm/opal-api.h 2016-04-12 12:09:26.000000000 -0400 +@@ -157,7 +157,8 @@ + #define OPAL_LEDS_GET_INDICATOR 114 + #define OPAL_LEDS_SET_INDICATOR 115 + #define OPAL_CEC_REBOOT2 116 +-#define OPAL_LAST 116 ++#define OPAL_CONSOLE_FLUSH 117 ++#define OPAL_LAST 117 + + /* Device tree flags */ + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/opal.h linux-libre-4.4.7-gnu/arch/powerpc/include/asm/opal.h +--- linux-libre-4.4-gnu/arch/powerpc/include/asm/opal.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/include/asm/opal.h 2016-04-12 12:09:26.000000000 -0400 +@@ -35,6 +35,7 @@ int64_t opal_console_read(int64_t term_n + uint8_t *buffer); + int64_t opal_console_write_buffer_space(int64_t term_number, + __be64 *length); ++int64_t opal_console_flush(int64_t term_number); + int64_t opal_rtc_read(__be32 *year_month_day, + __be64 *hour_minute_second_millisecond); + int64_t opal_rtc_write(uint32_t year_month_day, +@@ -262,6 +263,8 @@ extern int opal_resync_timebase(void); + + extern void opal_lpc_init(void); + ++extern void opal_kmsg_init(void); ++ + extern int opal_event_request(unsigned int opal_event_nr); + + struct opal_sg_list *opal_vmalloc_to_sg_list(void *vmalloc_addr, +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/synch.h linux-libre-4.4.7-gnu/arch/powerpc/include/asm/synch.h +--- linux-libre-4.4-gnu/arch/powerpc/include/asm/synch.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/include/asm/synch.h 2016-04-12 12:09:26.000000000 -0400 +@@ -44,7 +44,7 @@ static inline void isync(void) + MAKE_LWSYNC_SECTION_ENTRY(97, __lwsync_fixup); + #define PPC_ACQUIRE_BARRIER "\n" stringify_in_c(__PPC_ACQUIRE_BARRIER) + #define PPC_RELEASE_BARRIER stringify_in_c(LWSYNC) "\n" +-#define PPC_ATOMIC_ENTRY_BARRIER "\n" stringify_in_c(LWSYNC) "\n" ++#define PPC_ATOMIC_ENTRY_BARRIER "\n" stringify_in_c(sync) "\n" + #define PPC_ATOMIC_EXIT_BARRIER "\n" stringify_in_c(sync) "\n" + #else + #define PPC_ACQUIRE_BARRIER +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/uapi/asm/elf.h linux-libre-4.4.7-gnu/arch/powerpc/include/uapi/asm/elf.h +--- linux-libre-4.4-gnu/arch/powerpc/include/uapi/asm/elf.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/include/uapi/asm/elf.h 2016-04-12 12:09:26.000000000 -0400 +@@ -295,6 +295,8 @@ do { \ + #define R_PPC64_TLSLD 108 + #define R_PPC64_TOCSAVE 109 + ++#define R_PPC64_ENTRY 118 ++ + #define R_PPC64_REL16 249 + #define R_PPC64_REL16_LO 250 + #define R_PPC64_REL16_HI 251 +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/eeh_driver.c linux-libre-4.4.7-gnu/arch/powerpc/kernel/eeh_driver.c +--- linux-libre-4.4-gnu/arch/powerpc/kernel/eeh_driver.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/kernel/eeh_driver.c 2016-04-12 12:09:26.000000000 -0400 +@@ -418,8 +418,7 @@ static void *eeh_rmv_device(void *data, + eeh_pcid_put(dev); + if (driver->err_handler && + driver->err_handler->error_detected && +- driver->err_handler->slot_reset && +- driver->err_handler->resume) ++ driver->err_handler->slot_reset) + return NULL; + } + +@@ -564,6 +563,7 @@ static int eeh_reset_device(struct eeh_p + */ + eeh_pe_state_mark(pe, EEH_PE_KEEP); + if (bus) { ++ eeh_pe_state_clear(pe, EEH_PE_PRI_BUS); + pci_lock_rescan_remove(); + pcibios_remove_pci_devices(bus); + pci_unlock_rescan_remove(); +@@ -803,6 +803,7 @@ perm_error: + * the their PCI config any more. + */ + if (frozen_bus) { ++ eeh_pe_state_clear(pe, EEH_PE_PRI_BUS); + eeh_pe_dev_mode_mark(pe, EEH_DEV_REMOVED); + + pci_lock_rescan_remove(); +@@ -886,6 +887,7 @@ static void eeh_handle_special_event(voi + continue; + + /* Notify all devices to be down */ ++ eeh_pe_state_clear(pe, EEH_PE_PRI_BUS); + bus = eeh_pe_bus_get(phb_pe); + eeh_pe_dev_traverse(pe, + eeh_report_failure, NULL); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/eeh_pe.c linux-libre-4.4.7-gnu/arch/powerpc/kernel/eeh_pe.c +--- linux-libre-4.4-gnu/arch/powerpc/kernel/eeh_pe.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/kernel/eeh_pe.c 2016-04-12 12:09:26.000000000 -0400 +@@ -883,32 +883,29 @@ void eeh_pe_restore_bars(struct eeh_pe * + const char *eeh_pe_loc_get(struct eeh_pe *pe) + { + struct pci_bus *bus = eeh_pe_bus_get(pe); +- struct device_node *dn = pci_bus_to_OF_node(bus); ++ struct device_node *dn; + const char *loc = NULL; + +- if (!dn) +- goto out; ++ while (bus) { ++ dn = pci_bus_to_OF_node(bus); ++ if (!dn) { ++ bus = bus->parent; ++ continue; ++ } + +- /* PHB PE or root PE ? */ +- if (pci_is_root_bus(bus)) { +- loc = of_get_property(dn, "ibm,loc-code", NULL); +- if (!loc) ++ if (pci_is_root_bus(bus)) + loc = of_get_property(dn, "ibm,io-base-loc-code", NULL); ++ else ++ loc = of_get_property(dn, "ibm,slot-location-code", ++ NULL); ++ + if (loc) +- goto out; ++ return loc; + +- /* Check the root port */ +- dn = dn->child; +- if (!dn) +- goto out; ++ bus = bus->parent; + } + +- loc = of_get_property(dn, "ibm,loc-code", NULL); +- if (!loc) +- loc = of_get_property(dn, "ibm,slot-location-code", NULL); +- +-out: +- return loc ? loc : "N/A"; ++ return "N/A"; + } + + /** +@@ -931,7 +928,7 @@ struct pci_bus *eeh_pe_bus_get(struct ee + bus = pe->phb->bus; + } else if (pe->type & EEH_PE_BUS || + pe->type & EEH_PE_DEVICE) { +- if (pe->bus) { ++ if (pe->state & EEH_PE_PRI_BUS) { + bus = pe->bus; + goto out; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/module_64.c linux-libre-4.4.7-gnu/arch/powerpc/kernel/module_64.c +--- linux-libre-4.4-gnu/arch/powerpc/kernel/module_64.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/kernel/module_64.c 2016-04-12 12:09:26.000000000 -0400 +@@ -335,7 +335,7 @@ static void dedotify(Elf64_Sym *syms, un + if (syms[i].st_shndx == SHN_UNDEF) { + char *name = strtab + syms[i].st_name; + if (name[0] == '.') +- memmove(name, name+1, strlen(name)); ++ syms[i].st_name++; + } + } + } +@@ -635,6 +635,33 @@ int apply_relocate_add(Elf64_Shdr *sechd + */ + break; + ++ case R_PPC64_ENTRY: ++ /* ++ * Optimize ELFv2 large code model entry point if ++ * the TOC is within 2GB range of current location. ++ */ ++ value = my_r2(sechdrs, me) - (unsigned long)location; ++ if (value + 0x80008000 > 0xffffffff) ++ break; ++ /* ++ * Check for the large code model prolog sequence: ++ * ld r2, ...(r12) ++ * add r2, r2, r12 ++ */ ++ if ((((uint32_t *)location)[0] & ~0xfffc) ++ != 0xe84c0000) ++ break; ++ if (((uint32_t *)location)[1] != 0x7c426214) ++ break; ++ /* ++ * If found, replace it with: ++ * addis r2, r12, (.TOC.-func)@ha ++ * addi r2, r12, (.TOC.-func)@l ++ */ ++ ((uint32_t *)location)[0] = 0x3c4c0000 + PPC_HA(value); ++ ((uint32_t *)location)[1] = 0x38420000 + PPC_LO(value); ++ break; ++ + case R_PPC64_REL16_HA: + /* Subtract location pointer */ + value -= (unsigned long)location; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/process.c linux-libre-4.4.7-gnu/arch/powerpc/kernel/process.c +--- linux-libre-4.4-gnu/arch/powerpc/kernel/process.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/kernel/process.c 2016-04-12 12:09:26.000000000 -0400 +@@ -569,6 +569,24 @@ static void tm_reclaim_thread(struct thr + if (!MSR_TM_SUSPENDED(mfmsr())) + return; + ++ /* ++ * Use the current MSR TM suspended bit to track if we have ++ * checkpointed state outstanding. ++ * On signal delivery, we'd normally reclaim the checkpointed ++ * state to obtain stack pointer (see:get_tm_stackpointer()). ++ * This will then directly return to userspace without going ++ * through __switch_to(). However, if the stack frame is bad, ++ * we need to exit this thread which calls __switch_to() which ++ * will again attempt to reclaim the already saved tm state. ++ * Hence we need to check that we've not already reclaimed ++ * this state. ++ * We do this using the current MSR, rather tracking it in ++ * some specific thread_struct bit, as it has the additional ++ * benifit of checking for a potential TM bad thing exception. ++ */ ++ if (!MSR_TM_SUSPENDED(mfmsr())) ++ return; ++ + tm_reclaim(thr, thr->regs->msr, cause); + + /* Having done the reclaim, we now have the checkpointed +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S linux-libre-4.4.7-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S +--- linux-libre-4.4-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S 2016-04-12 12:09:26.000000000 -0400 +@@ -1370,6 +1370,20 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S) + std r6, VCPU_ACOP(r9) + stw r7, VCPU_GUEST_PID(r9) + std r8, VCPU_WORT(r9) ++ /* ++ * Restore various registers to 0, where non-zero values ++ * set by the guest could disrupt the host. ++ */ ++ li r0, 0 ++ mtspr SPRN_IAMR, r0 ++ mtspr SPRN_CIABR, r0 ++ mtspr SPRN_DAWRX, r0 ++ mtspr SPRN_TCSCR, r0 ++ mtspr SPRN_WORT, r0 ++ /* Set MMCRS to 1<<31 to freeze and disable the SPMC counters */ ++ li r0, 1 ++ sldi r0, r0, 31 ++ mtspr SPRN_MMCRS, r0 + 8: + + /* Save and reset AMR and UAMOR before turning on the MMU */ +@@ -2153,7 +2167,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S) + + /* Emulate H_SET_DABR/X on P8 for the sake of compat mode guests */ + 2: rlwimi r5, r4, 5, DAWRX_DR | DAWRX_DW +- rlwimi r5, r4, 1, DAWRX_WT ++ rlwimi r5, r4, 2, DAWRX_WT + clrrdi r4, r4, 3 + std r4, VCPU_DAWR(r3) + std r5, VCPU_DAWRX(r3) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kvm/powerpc.c linux-libre-4.4.7-gnu/arch/powerpc/kvm/powerpc.c +--- linux-libre-4.4-gnu/arch/powerpc/kvm/powerpc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/kvm/powerpc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -919,21 +919,17 @@ int kvm_vcpu_ioctl_get_one_reg(struct kv + r = -ENXIO; + break; + } +- vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0] = val.vval; ++ val.vval = vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0]; + break; + case KVM_REG_PPC_VSCR: + if (!cpu_has_feature(CPU_FTR_ALTIVEC)) { + r = -ENXIO; + break; + } +- vcpu->arch.vr.vscr.u[3] = set_reg_val(reg->id, val); ++ val = get_reg_val(reg->id, vcpu->arch.vr.vscr.u[3]); + break; + case KVM_REG_PPC_VRSAVE: +- if (!cpu_has_feature(CPU_FTR_ALTIVEC)) { +- r = -ENXIO; +- break; +- } +- vcpu->arch.vrsave = set_reg_val(reg->id, val); ++ val = get_reg_val(reg->id, vcpu->arch.vrsave); + break; + #endif /* CONFIG_ALTIVEC */ + default: +@@ -974,17 +970,21 @@ int kvm_vcpu_ioctl_set_one_reg(struct kv + r = -ENXIO; + break; + } +- val.vval = vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0]; ++ vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0] = val.vval; + break; + case KVM_REG_PPC_VSCR: + if (!cpu_has_feature(CPU_FTR_ALTIVEC)) { + r = -ENXIO; + break; + } +- val = get_reg_val(reg->id, vcpu->arch.vr.vscr.u[3]); ++ vcpu->arch.vr.vscr.u[3] = set_reg_val(reg->id, val); + break; + case KVM_REG_PPC_VRSAVE: +- val = get_reg_val(reg->id, vcpu->arch.vrsave); ++ if (!cpu_has_feature(CPU_FTR_ALTIVEC)) { ++ r = -ENXIO; ++ break; ++ } ++ vcpu->arch.vrsave = set_reg_val(reg->id, val); + break; + #endif /* CONFIG_ALTIVEC */ + default: +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/eeh-powernv.c linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/eeh-powernv.c +--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/eeh-powernv.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/eeh-powernv.c 2016-04-12 12:09:26.000000000 -0400 +@@ -444,9 +444,12 @@ static void *pnv_eeh_probe(struct pci_dn + * PCI devices of the PE are expected to be removed prior + * to PE reset. + */ +- if (!edev->pe->bus) ++ if (!(edev->pe->state & EEH_PE_PRI_BUS)) { + edev->pe->bus = pci_find_bus(hose->global_number, + pdn->busno); ++ if (edev->pe->bus) ++ edev->pe->state |= EEH_PE_PRI_BUS; ++ } + + /* + * Enable EEH explicitly so that we will do EEH check +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/Makefile linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/Makefile +--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/Makefile 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/Makefile 2016-04-12 12:09:26.000000000 -0400 +@@ -2,6 +2,7 @@ obj-y += setup.o opal-wrappers.o opal. + obj-y += opal-rtc.o opal-nvram.o opal-lpc.o opal-flash.o + obj-y += rng.o opal-elog.o opal-dump.o opal-sysparam.o opal-sensor.o + obj-y += opal-msglog.o opal-hmi.o opal-power.o opal-irqchip.o ++obj-y += opal-kmsg.o + + obj-$(CONFIG_SMP) += smp.o subcore.o subcore-asm.o + obj-$(CONFIG_PCI) += pci.o pci-p5ioc2.o pci-ioda.o +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal.c linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/opal.c +--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/opal.c 2016-04-12 12:09:26.000000000 -0400 +@@ -758,6 +758,9 @@ static int __init opal_init(void) + opal_pdev_init(opal_node, "ibm,opal-flash"); + opal_pdev_init(opal_node, "ibm,opal-prd"); + ++ /* Initialise OPAL kmsg dumper for flushing console on panic */ ++ opal_kmsg_init(); ++ + return 0; + } + machine_subsys_initcall(powernv, opal_init); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal-kmsg.c linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/opal-kmsg.c +--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal-kmsg.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/opal-kmsg.c 2016-04-12 12:09:26.000000000 -0400 +@@ -0,0 +1,75 @@ ++/* ++ * kmsg dumper that ensures the OPAL console fully flushes panic messages ++ * ++ * Author: Russell Currey <ruscur@russell.cc> ++ * ++ * Copyright 2015 IBM Corporation. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ */ ++ ++#include <linux/kmsg_dump.h> ++ ++#include <asm/opal.h> ++#include <asm/opal-api.h> ++ ++/* ++ * Console output is controlled by OPAL firmware. The kernel regularly calls ++ * OPAL_POLL_EVENTS, which flushes some console output. In a panic state, ++ * however, the kernel no longer calls OPAL_POLL_EVENTS and the panic message ++ * may not be completely printed. This function does not actually dump the ++ * message, it just ensures that OPAL completely flushes the console buffer. ++ */ ++static void force_opal_console_flush(struct kmsg_dumper *dumper, ++ enum kmsg_dump_reason reason) ++{ ++ int i; ++ int64_t ret; ++ ++ /* ++ * Outside of a panic context the pollers will continue to run, ++ * so we don't need to do any special flushing. ++ */ ++ if (reason != KMSG_DUMP_PANIC) ++ return; ++ ++ if (opal_check_token(OPAL_CONSOLE_FLUSH)) { ++ ret = opal_console_flush(0); ++ ++ if (ret == OPAL_UNSUPPORTED || ret == OPAL_PARAMETER) ++ return; ++ ++ /* Incrementally flush until there's nothing left */ ++ while (opal_console_flush(0) != OPAL_SUCCESS); ++ } else { ++ /* ++ * If OPAL_CONSOLE_FLUSH is not implemented in the firmware, ++ * the console can still be flushed by calling the polling ++ * function enough times to flush the buffer. We don't know ++ * how much output still needs to be flushed, but we can be ++ * generous since the kernel is in panic and doesn't need ++ * to do much else. ++ */ ++ printk(KERN_NOTICE "opal: OPAL_CONSOLE_FLUSH missing.\n"); ++ for (i = 0; i < 1024; i++) { ++ opal_poll_events(NULL); ++ } ++ } ++} ++ ++static struct kmsg_dumper opal_kmsg_dumper = { ++ .dump = force_opal_console_flush ++}; ++ ++void __init opal_kmsg_init(void) ++{ ++ int rc; ++ ++ /* Add our dumper to the list */ ++ rc = kmsg_dump_register(&opal_kmsg_dumper); ++ if (rc != 0) ++ pr_err("opal: kmsg_dump_register failed; returned %d\n", rc); ++} +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal-wrappers.S linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/opal-wrappers.S +--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal-wrappers.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/opal-wrappers.S 2016-04-12 12:09:26.000000000 -0400 +@@ -301,3 +301,4 @@ OPAL_CALL(opal_flash_erase, OPAL_FLASH + OPAL_CALL(opal_prd_msg, OPAL_PRD_MSG); + OPAL_CALL(opal_leds_get_ind, OPAL_LEDS_GET_INDICATOR); + OPAL_CALL(opal_leds_set_ind, OPAL_LEDS_SET_INDICATOR); ++OPAL_CALL(opal_console_flush, OPAL_CONSOLE_FLUSH); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/pci.c linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/pci.c +--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/pci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/pci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -601,6 +601,9 @@ int pnv_tce_build(struct iommu_table *tb + u64 rpn = __pa(uaddr) >> tbl->it_page_shift; + long i; + ++ if (proto_tce & TCE_PCI_WRITE) ++ proto_tce |= TCE_PCI_READ; ++ + for (i = 0; i < npages; i++) { + unsigned long newtce = proto_tce | + ((rpn + i) << tbl->it_page_shift); +@@ -622,6 +625,9 @@ int pnv_tce_xchg(struct iommu_table *tbl + + BUG_ON(*hpa & ~IOMMU_PAGE_MASK(tbl)); + ++ if (newtce & TCE_PCI_WRITE) ++ newtce |= TCE_PCI_READ; ++ + oldtce = xchg(pnv_tce(tbl, idx), cpu_to_be64(newtce)); + *hpa = be64_to_cpu(oldtce) & ~(TCE_PCI_READ | TCE_PCI_WRITE); + *direction = iommu_tce_direction(oldtce); +@@ -762,6 +768,26 @@ void pnv_pci_dma_dev_setup(struct pci_de + phb->dma_dev_setup(phb, pdev); + } + ++void pnv_pci_dma_bus_setup(struct pci_bus *bus) ++{ ++ struct pci_controller *hose = bus->sysdata; ++ struct pnv_phb *phb = hose->private_data; ++ struct pnv_ioda_pe *pe; ++ ++ list_for_each_entry(pe, &phb->ioda.pe_list, list) { ++ if (!(pe->flags & (PNV_IODA_PE_BUS | PNV_IODA_PE_BUS_ALL))) ++ continue; ++ ++ if (!pe->pbus) ++ continue; ++ ++ if (bus->number == ((pe->rid >> 8) & 0xFF)) { ++ pe->pbus = bus; ++ break; ++ } ++ } ++} ++ + void pnv_pci_shutdown(void) + { + struct pci_controller *hose; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/pci.h linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/pci.h +--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/pci.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/pci.h 2016-04-12 12:09:26.000000000 -0400 +@@ -235,6 +235,7 @@ extern void pnv_pci_reset_secondary_bus( + extern int pnv_eeh_phb_reset(struct pci_controller *hose, int option); + + extern void pnv_pci_dma_dev_setup(struct pci_dev *pdev); ++extern void pnv_pci_dma_bus_setup(struct pci_bus *bus); + extern int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type); + extern void pnv_teardown_msi_irqs(struct pci_dev *pdev); + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/pci-ioda.c linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/pci-ioda.c +--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/pci-ioda.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/powerpc/platforms/powernv/pci-ioda.c 2016-04-12 12:09:26.000000000 -0400 +@@ -3034,6 +3034,7 @@ static void pnv_pci_ioda_shutdown(struct + + static const struct pci_controller_ops pnv_pci_ioda_controller_ops = { + .dma_dev_setup = pnv_pci_dma_dev_setup, ++ .dma_bus_setup = pnv_pci_dma_bus_setup, + #ifdef CONFIG_PCI_MSI + .setup_msi_irqs = pnv_setup_msi_irqs, + .teardown_msi_irqs = pnv_teardown_msi_irqs, +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/fpu/internal.h linux-libre-4.4.7-gnu/arch/s390/include/asm/fpu/internal.h +--- linux-libre-4.4-gnu/arch/s390/include/asm/fpu/internal.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/s390/include/asm/fpu/internal.h 2016-04-12 12:09:26.000000000 -0400 +@@ -48,6 +48,7 @@ static inline void convert_fp_to_vx(__ve + static inline void fpregs_store(_s390_fp_regs *fpregs, struct fpu *fpu) + { + fpregs->pad = 0; ++ fpregs->fpc = fpu->fpc; + if (MACHINE_HAS_VX) + convert_vx_to_fp((freg_t *)&fpregs->fprs, fpu->vxrs); + else +@@ -57,6 +58,7 @@ static inline void fpregs_store(_s390_fp + + static inline void fpregs_load(_s390_fp_regs *fpregs, struct fpu *fpu) + { ++ fpu->fpc = fpregs->fpc; + if (MACHINE_HAS_VX) + convert_fp_to_vx(fpu->vxrs, (freg_t *)&fpregs->fprs); + else +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/kvm_host.h linux-libre-4.4.7-gnu/arch/s390/include/asm/kvm_host.h +--- linux-libre-4.4-gnu/arch/s390/include/asm/kvm_host.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/s390/include/asm/kvm_host.h 2016-04-12 12:09:26.000000000 -0400 +@@ -506,7 +506,6 @@ struct kvm_vcpu_arch { + struct kvm_s390_sie_block *sie_block; + unsigned int host_acrs[NUM_ACRS]; + struct fpu host_fpregs; +- struct fpu guest_fpregs; + struct kvm_s390_local_interrupt local_int; + struct hrtimer ckc_timer; + struct kvm_s390_pgm_info pgm; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/mmu_context.h linux-libre-4.4.7-gnu/arch/s390/include/asm/mmu_context.h +--- linux-libre-4.4-gnu/arch/s390/include/asm/mmu_context.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/s390/include/asm/mmu_context.h 2016-04-12 12:09:26.000000000 -0400 +@@ -15,17 +15,25 @@ + static inline int init_new_context(struct task_struct *tsk, + struct mm_struct *mm) + { ++ spin_lock_init(&mm->context.list_lock); ++ INIT_LIST_HEAD(&mm->context.pgtable_list); ++ INIT_LIST_HEAD(&mm->context.gmap_list); + cpumask_clear(&mm->context.cpu_attach_mask); + atomic_set(&mm->context.attach_count, 0); + mm->context.flush_mm = 0; +- mm->context.asce_bits = _ASCE_TABLE_LENGTH | _ASCE_USER_BITS; +- mm->context.asce_bits |= _ASCE_TYPE_REGION3; + #ifdef CONFIG_PGSTE + mm->context.alloc_pgste = page_table_allocate_pgste; + mm->context.has_pgste = 0; + mm->context.use_skey = 0; + #endif +- mm->context.asce_limit = STACK_TOP_MAX; ++ if (mm->context.asce_limit == 0) { ++ /* context created by exec, set asce limit to 4TB */ ++ mm->context.asce_bits = _ASCE_TABLE_LENGTH | ++ _ASCE_USER_BITS | _ASCE_TYPE_REGION3; ++ mm->context.asce_limit = STACK_TOP_MAX; ++ } else if (mm->context.asce_limit == (1UL << 31)) { ++ mm_inc_nr_pmds(mm); ++ } + crst_table_init((unsigned long *) mm->pgd, pgd_entry_type(mm)); + return 0; + } +@@ -111,8 +119,6 @@ static inline void activate_mm(struct mm + static inline void arch_dup_mmap(struct mm_struct *oldmm, + struct mm_struct *mm) + { +- if (oldmm->context.asce_limit < mm->context.asce_limit) +- crst_table_downgrade(mm, oldmm->context.asce_limit); + } + + static inline void arch_exit_mmap(struct mm_struct *mm) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/pci.h linux-libre-4.4.7-gnu/arch/s390/include/asm/pci.h +--- linux-libre-4.4-gnu/arch/s390/include/asm/pci.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/s390/include/asm/pci.h 2016-04-12 12:09:26.000000000 -0400 +@@ -45,7 +45,7 @@ struct zpci_fmb { + u64 rpcit_ops; + u64 dma_rbytes; + u64 dma_wbytes; +-} __packed __aligned(16); ++} __packed __aligned(64); + + enum zpci_state { + ZPCI_FN_STATE_RESERVED, +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/pgalloc.h linux-libre-4.4.7-gnu/arch/s390/include/asm/pgalloc.h +--- linux-libre-4.4-gnu/arch/s390/include/asm/pgalloc.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/s390/include/asm/pgalloc.h 2016-04-12 12:09:26.000000000 -0400 +@@ -100,12 +100,26 @@ static inline void pud_populate(struct m + + static inline pgd_t *pgd_alloc(struct mm_struct *mm) + { +- spin_lock_init(&mm->context.list_lock); +- INIT_LIST_HEAD(&mm->context.pgtable_list); +- INIT_LIST_HEAD(&mm->context.gmap_list); +- return (pgd_t *) crst_table_alloc(mm); ++ unsigned long *table = crst_table_alloc(mm); ++ ++ if (!table) ++ return NULL; ++ if (mm->context.asce_limit == (1UL << 31)) { ++ /* Forking a compat process with 2 page table levels */ ++ if (!pgtable_pmd_page_ctor(virt_to_page(table))) { ++ crst_table_free(mm, table); ++ return NULL; ++ } ++ } ++ return (pgd_t *) table; ++} ++ ++static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) ++{ ++ if (mm->context.asce_limit == (1UL << 31)) ++ pgtable_pmd_page_dtor(virt_to_page(pgd)); ++ crst_table_free(mm, (unsigned long *) pgd); + } +-#define pgd_free(mm, pgd) crst_table_free(mm, (unsigned long *) pgd) + + static inline void pmd_populate(struct mm_struct *mm, + pmd_t *pmd, pgtable_t pte) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/asm-offsets.c linux-libre-4.4.7-gnu/arch/s390/kernel/asm-offsets.c +--- linux-libre-4.4-gnu/arch/s390/kernel/asm-offsets.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/s390/kernel/asm-offsets.c 2016-04-12 12:09:26.000000000 -0400 +@@ -181,6 +181,7 @@ int main(void) + OFFSET(__LC_PSW_SAVE_AREA, _lowcore, psw_save_area); + OFFSET(__LC_PREFIX_SAVE_AREA, _lowcore, prefixreg_save_area); + OFFSET(__LC_FP_CREG_SAVE_AREA, _lowcore, fpt_creg_save_area); ++ OFFSET(__LC_TOD_PROGREG_SAVE_AREA, _lowcore, tod_progreg_save_area); + OFFSET(__LC_CPU_TIMER_SAVE_AREA, _lowcore, cpu_timer_save_area); + OFFSET(__LC_CLOCK_COMP_SAVE_AREA, _lowcore, clock_comp_save_area); + OFFSET(__LC_AREGS_SAVE_AREA, _lowcore, access_regs_save_area); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/compat_signal.c linux-libre-4.4.7-gnu/arch/s390/kernel/compat_signal.c +--- linux-libre-4.4-gnu/arch/s390/kernel/compat_signal.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/s390/kernel/compat_signal.c 2016-04-12 12:09:26.000000000 -0400 +@@ -271,7 +271,7 @@ static int restore_sigregs_ext32(struct + + /* Restore high gprs from signal stack */ + if (__copy_from_user(&gprs_high, &sregs_ext->gprs_high, +- sizeof(&sregs_ext->gprs_high))) ++ sizeof(sregs_ext->gprs_high))) + return -EFAULT; + for (i = 0; i < NUM_GPRS; i++) + *(__u32 *)®s->gprs[i] = gprs_high[i]; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/entry.S linux-libre-4.4.7-gnu/arch/s390/kernel/entry.S +--- linux-libre-4.4-gnu/arch/s390/kernel/entry.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/s390/kernel/entry.S 2016-04-12 12:09:26.000000000 -0400 +@@ -1197,114 +1197,12 @@ cleanup_critical: + .quad .Lpsw_idle_lpsw + + .Lcleanup_save_fpu_regs: +- TSTMSK __LC_CPU_FLAGS,_CIF_FPU +- bor %r14 +- clg %r9,BASED(.Lcleanup_save_fpu_regs_done) +- jhe 5f +- clg %r9,BASED(.Lcleanup_save_fpu_regs_fp) +- jhe 4f +- clg %r9,BASED(.Lcleanup_save_fpu_regs_vx_high) +- jhe 3f +- clg %r9,BASED(.Lcleanup_save_fpu_regs_vx_low) +- jhe 2f +- clg %r9,BASED(.Lcleanup_save_fpu_fpc_end) +- jhe 1f +- lg %r2,__LC_CURRENT +- aghi %r2,__TASK_thread +-0: # Store floating-point controls +- stfpc __THREAD_FPU_fpc(%r2) +-1: # Load register save area and check if VX is active +- lg %r3,__THREAD_FPU_regs(%r2) +- TSTMSK __LC_MACHINE_FLAGS,MACHINE_FLAG_VX +- jz 4f # no VX -> store FP regs +-2: # Store vector registers (V0-V15) +- VSTM %v0,%v15,0,%r3 # vstm 0,15,0(3) +-3: # Store vector registers (V16-V31) +- VSTM %v16,%v31,256,%r3 # vstm 16,31,256(3) +- j 5f # -> done, set CIF_FPU flag +-4: # Store floating-point registers +- std 0,0(%r3) +- std 1,8(%r3) +- std 2,16(%r3) +- std 3,24(%r3) +- std 4,32(%r3) +- std 5,40(%r3) +- std 6,48(%r3) +- std 7,56(%r3) +- std 8,64(%r3) +- std 9,72(%r3) +- std 10,80(%r3) +- std 11,88(%r3) +- std 12,96(%r3) +- std 13,104(%r3) +- std 14,112(%r3) +- std 15,120(%r3) +-5: # Set CIF_FPU flag +- oi __LC_CPU_FLAGS+7,_CIF_FPU +- lg %r9,48(%r11) # return from save_fpu_regs ++ larl %r9,save_fpu_regs + br %r14 +-.Lcleanup_save_fpu_fpc_end: +- .quad .Lsave_fpu_regs_fpc_end +-.Lcleanup_save_fpu_regs_vx_low: +- .quad .Lsave_fpu_regs_vx_low +-.Lcleanup_save_fpu_regs_vx_high: +- .quad .Lsave_fpu_regs_vx_high +-.Lcleanup_save_fpu_regs_fp: +- .quad .Lsave_fpu_regs_fp +-.Lcleanup_save_fpu_regs_done: +- .quad .Lsave_fpu_regs_done + + .Lcleanup_load_fpu_regs: +- TSTMSK __LC_CPU_FLAGS,_CIF_FPU +- bnor %r14 +- clg %r9,BASED(.Lcleanup_load_fpu_regs_done) +- jhe 1f +- clg %r9,BASED(.Lcleanup_load_fpu_regs_fp) +- jhe 2f +- clg %r9,BASED(.Lcleanup_load_fpu_regs_vx_high) +- jhe 3f +- clg %r9,BASED(.Lcleanup_load_fpu_regs_vx) +- jhe 4f +- lg %r4,__LC_CURRENT +- aghi %r4,__TASK_thread +- lfpc __THREAD_FPU_fpc(%r4) +- TSTMSK __LC_MACHINE_FLAGS,MACHINE_FLAG_VX +- lg %r4,__THREAD_FPU_regs(%r4) # %r4 <- reg save area +- jz 2f # -> no VX, load FP regs +-4: # Load V0 ..V15 registers +- VLM %v0,%v15,0,%r4 +-3: # Load V16..V31 registers +- VLM %v16,%v31,256,%r4 +- j 1f +-2: # Load floating-point registers +- ld 0,0(%r4) +- ld 1,8(%r4) +- ld 2,16(%r4) +- ld 3,24(%r4) +- ld 4,32(%r4) +- ld 5,40(%r4) +- ld 6,48(%r4) +- ld 7,56(%r4) +- ld 8,64(%r4) +- ld 9,72(%r4) +- ld 10,80(%r4) +- ld 11,88(%r4) +- ld 12,96(%r4) +- ld 13,104(%r4) +- ld 14,112(%r4) +- ld 15,120(%r4) +-1: # Clear CIF_FPU bit +- ni __LC_CPU_FLAGS+7,255-_CIF_FPU +- lg %r9,48(%r11) # return from load_fpu_regs ++ larl %r9,load_fpu_regs + br %r14 +-.Lcleanup_load_fpu_regs_vx: +- .quad .Lload_fpu_regs_vx +-.Lcleanup_load_fpu_regs_vx_high: +- .quad .Lload_fpu_regs_vx_high +-.Lcleanup_load_fpu_regs_fp: +- .quad .Lload_fpu_regs_fp +-.Lcleanup_load_fpu_regs_done: +- .quad .Lload_fpu_regs_done + + /* + * Integer constants +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/head64.S linux-libre-4.4.7-gnu/arch/s390/kernel/head64.S +--- linux-libre-4.4-gnu/arch/s390/kernel/head64.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/s390/kernel/head64.S 2016-04-12 12:09:26.000000000 -0400 +@@ -16,7 +16,7 @@ + + __HEAD + ENTRY(startup_continue) +- tm __LC_STFL_FAC_LIST+6,0x80 # LPP available ? ++ tm __LC_STFL_FAC_LIST+5,0x80 # LPP available ? + jz 0f + xc __LC_LPP+1(7,0),__LC_LPP+1 # clear lpp and current_pid + mvi __LC_LPP,0x80 # and set LPP_MAGIC +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/setup.c linux-libre-4.4.7-gnu/arch/s390/kernel/setup.c +--- linux-libre-4.4-gnu/arch/s390/kernel/setup.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/s390/kernel/setup.c 2016-04-12 12:09:26.000000000 -0400 +@@ -329,6 +329,7 @@ static void __init setup_lowcore(void) + + PAGE_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs); + lc->current_task = (unsigned long) init_thread_union.thread_info.task; + lc->thread_info = (unsigned long) &init_thread_union; ++ lc->lpp = LPP_MAGIC; + lc->machine_flags = S390_lowcore.machine_flags; + lc->stfl_fac_list = S390_lowcore.stfl_fac_list; + memcpy(lc->stfle_fac_list, S390_lowcore.stfle_fac_list, +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kvm/kvm-s390.c linux-libre-4.4.7-gnu/arch/s390/kvm/kvm-s390.c +--- linux-libre-4.4-gnu/arch/s390/kvm/kvm-s390.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/s390/kvm/kvm-s390.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1268,44 +1268,18 @@ int kvm_arch_vcpu_init(struct kvm_vcpu * + return 0; + } + +-/* +- * Backs up the current FP/VX register save area on a particular +- * destination. Used to switch between different register save +- * areas. +- */ +-static inline void save_fpu_to(struct fpu *dst) +-{ +- dst->fpc = current->thread.fpu.fpc; +- dst->regs = current->thread.fpu.regs; +-} +- +-/* +- * Switches the FP/VX register save area from which to lazy +- * restore register contents. +- */ +-static inline void load_fpu_from(struct fpu *from) +-{ +- current->thread.fpu.fpc = from->fpc; +- current->thread.fpu.regs = from->regs; +-} +- + void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) + { + /* Save host register state */ + save_fpu_regs(); +- save_fpu_to(&vcpu->arch.host_fpregs); +- +- if (test_kvm_facility(vcpu->kvm, 129)) { +- current->thread.fpu.fpc = vcpu->run->s.regs.fpc; +- /* +- * Use the register save area in the SIE-control block +- * for register restore and save in kvm_arch_vcpu_put() +- */ +- current->thread.fpu.vxrs = +- (__vector128 *)&vcpu->run->s.regs.vrs; +- } else +- load_fpu_from(&vcpu->arch.guest_fpregs); ++ vcpu->arch.host_fpregs.fpc = current->thread.fpu.fpc; ++ vcpu->arch.host_fpregs.regs = current->thread.fpu.regs; + ++ /* Depending on MACHINE_HAS_VX, data stored to vrs either ++ * has vector register or floating point register format. ++ */ ++ current->thread.fpu.regs = vcpu->run->s.regs.vrs; ++ current->thread.fpu.fpc = vcpu->run->s.regs.fpc; + if (test_fp_ctl(current->thread.fpu.fpc)) + /* User space provided an invalid FPC, let's clear it */ + current->thread.fpu.fpc = 0; +@@ -1321,19 +1295,13 @@ void kvm_arch_vcpu_put(struct kvm_vcpu * + atomic_andnot(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags); + gmap_disable(vcpu->arch.gmap); + ++ /* Save guest register state */ + save_fpu_regs(); ++ vcpu->run->s.regs.fpc = current->thread.fpu.fpc; + +- if (test_kvm_facility(vcpu->kvm, 129)) +- /* +- * kvm_arch_vcpu_load() set up the register save area to +- * the &vcpu->run->s.regs.vrs and, thus, the vector registers +- * are already saved. Only the floating-point control must be +- * copied. +- */ +- vcpu->run->s.regs.fpc = current->thread.fpu.fpc; +- else +- save_fpu_to(&vcpu->arch.guest_fpregs); +- load_fpu_from(&vcpu->arch.host_fpregs); ++ /* Restore host register state */ ++ current->thread.fpu.fpc = vcpu->arch.host_fpregs.fpc; ++ current->thread.fpu.regs = vcpu->arch.host_fpregs.regs; + + save_access_regs(vcpu->run->s.regs.acrs); + restore_access_regs(vcpu->arch.host_acrs); +@@ -1351,8 +1319,9 @@ static void kvm_s390_vcpu_initial_reset( + memset(vcpu->arch.sie_block->gcr, 0, 16 * sizeof(__u64)); + vcpu->arch.sie_block->gcr[0] = 0xE0UL; + vcpu->arch.sie_block->gcr[14] = 0xC2000000UL; +- vcpu->arch.guest_fpregs.fpc = 0; +- asm volatile("lfpc %0" : : "Q" (vcpu->arch.guest_fpregs.fpc)); ++ /* make sure the new fpc will be lazily loaded */ ++ save_fpu_regs(); ++ current->thread.fpu.fpc = 0; + vcpu->arch.sie_block->gbea = 1; + vcpu->arch.sie_block->pp = 0; + vcpu->arch.pfault_token = KVM_S390_PFAULT_TOKEN_INVALID; +@@ -1501,19 +1470,6 @@ struct kvm_vcpu *kvm_arch_vcpu_create(st + vcpu->arch.local_int.wq = &vcpu->wq; + vcpu->arch.local_int.cpuflags = &vcpu->arch.sie_block->cpuflags; + +- /* +- * Allocate a save area for floating-point registers. If the vector +- * extension is available, register contents are saved in the SIE +- * control block. The allocated save area is still required in +- * particular places, for example, in kvm_s390_vcpu_store_status(). +- */ +- vcpu->arch.guest_fpregs.fprs = kzalloc(sizeof(freg_t) * __NUM_FPRS, +- GFP_KERNEL); +- if (!vcpu->arch.guest_fpregs.fprs) { +- rc = -ENOMEM; +- goto out_free_sie_block; +- } +- + rc = kvm_vcpu_init(vcpu, kvm, id); + if (rc) + goto out_free_sie_block; +@@ -1734,19 +1690,27 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct + + int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) + { ++ /* make sure the new values will be lazily loaded */ ++ save_fpu_regs(); + if (test_fp_ctl(fpu->fpc)) + return -EINVAL; +- memcpy(vcpu->arch.guest_fpregs.fprs, &fpu->fprs, sizeof(fpu->fprs)); +- vcpu->arch.guest_fpregs.fpc = fpu->fpc; +- save_fpu_regs(); +- load_fpu_from(&vcpu->arch.guest_fpregs); ++ current->thread.fpu.fpc = fpu->fpc; ++ if (MACHINE_HAS_VX) ++ convert_fp_to_vx(current->thread.fpu.vxrs, (freg_t *)fpu->fprs); ++ else ++ memcpy(current->thread.fpu.fprs, &fpu->fprs, sizeof(fpu->fprs)); + return 0; + } + + int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) + { +- memcpy(&fpu->fprs, vcpu->arch.guest_fpregs.fprs, sizeof(fpu->fprs)); +- fpu->fpc = vcpu->arch.guest_fpregs.fpc; ++ /* make sure we have the latest values */ ++ save_fpu_regs(); ++ if (MACHINE_HAS_VX) ++ convert_vx_to_fp((freg_t *)fpu->fprs, current->thread.fpu.vxrs); ++ else ++ memcpy(fpu->fprs, current->thread.fpu.fprs, sizeof(fpu->fprs)); ++ fpu->fpc = current->thread.fpu.fpc; + return 0; + } + +@@ -2266,41 +2230,50 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_v + int kvm_s390_store_status_unloaded(struct kvm_vcpu *vcpu, unsigned long gpa) + { + unsigned char archmode = 1; ++ freg_t fprs[NUM_FPRS]; + unsigned int px; + u64 clkcomp; + int rc; + ++ px = kvm_s390_get_prefix(vcpu); + if (gpa == KVM_S390_STORE_STATUS_NOADDR) { + if (write_guest_abs(vcpu, 163, &archmode, 1)) + return -EFAULT; +- gpa = SAVE_AREA_BASE; ++ gpa = 0; + } else if (gpa == KVM_S390_STORE_STATUS_PREFIXED) { + if (write_guest_real(vcpu, 163, &archmode, 1)) + return -EFAULT; +- gpa = kvm_s390_real_to_abs(vcpu, SAVE_AREA_BASE); ++ gpa = px; ++ } else ++ gpa -= __LC_FPREGS_SAVE_AREA; ++ ++ /* manually convert vector registers if necessary */ ++ if (MACHINE_HAS_VX) { ++ convert_vx_to_fp(fprs, (__vector128 *) vcpu->run->s.regs.vrs); ++ rc = write_guest_abs(vcpu, gpa + __LC_FPREGS_SAVE_AREA, ++ fprs, 128); ++ } else { ++ rc = write_guest_abs(vcpu, gpa + __LC_FPREGS_SAVE_AREA, ++ vcpu->run->s.regs.vrs, 128); + } +- rc = write_guest_abs(vcpu, gpa + offsetof(struct save_area, fp_regs), +- vcpu->arch.guest_fpregs.fprs, 128); +- rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, gp_regs), ++ rc |= write_guest_abs(vcpu, gpa + __LC_GPREGS_SAVE_AREA, + vcpu->run->s.regs.gprs, 128); +- rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, psw), ++ rc |= write_guest_abs(vcpu, gpa + __LC_PSW_SAVE_AREA, + &vcpu->arch.sie_block->gpsw, 16); +- px = kvm_s390_get_prefix(vcpu); +- rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, pref_reg), ++ rc |= write_guest_abs(vcpu, gpa + __LC_PREFIX_SAVE_AREA, + &px, 4); +- rc |= write_guest_abs(vcpu, +- gpa + offsetof(struct save_area, fp_ctrl_reg), +- &vcpu->arch.guest_fpregs.fpc, 4); +- rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, tod_reg), ++ rc |= write_guest_abs(vcpu, gpa + __LC_FP_CREG_SAVE_AREA, ++ &vcpu->run->s.regs.fpc, 4); ++ rc |= write_guest_abs(vcpu, gpa + __LC_TOD_PROGREG_SAVE_AREA, + &vcpu->arch.sie_block->todpr, 4); +- rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, timer), ++ rc |= write_guest_abs(vcpu, gpa + __LC_CPU_TIMER_SAVE_AREA, + &vcpu->arch.sie_block->cputm, 8); + clkcomp = vcpu->arch.sie_block->ckc >> 8; +- rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, clk_cmp), ++ rc |= write_guest_abs(vcpu, gpa + __LC_CLOCK_COMP_SAVE_AREA, + &clkcomp, 8); +- rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, acc_regs), ++ rc |= write_guest_abs(vcpu, gpa + __LC_AREGS_SAVE_AREA, + &vcpu->run->s.regs.acrs, 64); +- rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, ctrl_regs), ++ rc |= write_guest_abs(vcpu, gpa + __LC_CREGS_SAVE_AREA, + &vcpu->arch.sie_block->gcr, 128); + return rc ? -EFAULT : 0; + } +@@ -2313,19 +2286,7 @@ int kvm_s390_vcpu_store_status(struct kv + * it into the save area + */ + save_fpu_regs(); +- if (test_kvm_facility(vcpu->kvm, 129)) { +- /* +- * If the vector extension is available, the vector registers +- * which overlaps with floating-point registers are saved in +- * the SIE-control block. Hence, extract the floating-point +- * registers and the FPC value and store them in the +- * guest_fpregs structure. +- */ +- vcpu->arch.guest_fpregs.fpc = current->thread.fpu.fpc; +- convert_vx_to_fp(vcpu->arch.guest_fpregs.fprs, +- current->thread.fpu.vxrs); +- } else +- save_fpu_to(&vcpu->arch.guest_fpregs); ++ vcpu->run->s.regs.fpc = current->thread.fpu.fpc; + save_access_regs(vcpu->run->s.regs.acrs); + + return kvm_s390_store_status_unloaded(vcpu, addr); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/mm/extable.c linux-libre-4.4.7-gnu/arch/s390/mm/extable.c +--- linux-libre-4.4-gnu/arch/s390/mm/extable.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/s390/mm/extable.c 2016-04-12 12:09:26.000000000 -0400 +@@ -52,12 +52,16 @@ void sort_extable(struct exception_table + int i; + + /* Normalize entries to being relative to the start of the section */ +- for (p = start, i = 0; p < finish; p++, i += 8) ++ for (p = start, i = 0; p < finish; p++, i += 8) { + p->insn += i; ++ p->fixup += i + 4; ++ } + sort(start, finish - start, sizeof(*start), cmp_ex, NULL); + /* Denormalize all entries */ +- for (p = start, i = 0; p < finish; p++, i += 8) ++ for (p = start, i = 0; p < finish; p++, i += 8) { + p->insn -= i; ++ p->fixup -= i + 4; ++ } + } + + #ifdef CONFIG_MODULES +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/pci/pci.c linux-libre-4.4.7-gnu/arch/s390/pci/pci.c +--- linux-libre-4.4-gnu/arch/s390/pci/pci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/s390/pci/pci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -871,8 +871,11 @@ static inline int barsize(u8 size) + + static int zpci_mem_init(void) + { ++ BUILD_BUG_ON(!is_power_of_2(__alignof__(struct zpci_fmb)) || ++ __alignof__(struct zpci_fmb) < sizeof(struct zpci_fmb)); ++ + zdev_fmb_cache = kmem_cache_create("PCI_FMB_cache", sizeof(struct zpci_fmb), +- 16, 0, NULL); ++ __alignof__(struct zpci_fmb), 0, NULL); + if (!zdev_fmb_cache) + goto error_zdev; + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sh/mm/kmap.c linux-libre-4.4.7-gnu/arch/sh/mm/kmap.c +--- linux-libre-4.4-gnu/arch/sh/mm/kmap.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/sh/mm/kmap.c 2016-04-12 12:09:26.000000000 -0400 +@@ -36,6 +36,7 @@ void *kmap_coherent(struct page *page, u + + BUG_ON(!test_bit(PG_dcache_clean, &page->flags)); + ++ preempt_disable(); + pagefault_disable(); + + idx = FIX_CMAP_END - +@@ -64,4 +65,5 @@ void kunmap_coherent(void *kvaddr) + } + + pagefault_enable(); ++ preempt_enable(); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/sys_sparc_64.c linux-libre-4.4.7-gnu/arch/sparc/kernel/sys_sparc_64.c +--- linux-libre-4.4-gnu/arch/sparc/kernel/sys_sparc_64.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/sparc/kernel/sys_sparc_64.c 2016-04-12 12:09:26.000000000 -0400 +@@ -413,7 +413,7 @@ out: + + SYSCALL_DEFINE1(sparc64_personality, unsigned long, personality) + { +- int ret; ++ long ret; + + if (personality(current->personality) == PER_LINUX32 && + personality(personality) == PER_LINUX) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/um/drivers/mconsole_kern.c linux-libre-4.4.7-gnu/arch/um/drivers/mconsole_kern.c +--- linux-libre-4.4-gnu/arch/um/drivers/mconsole_kern.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/um/drivers/mconsole_kern.c 2016-04-12 12:09:26.000000000 -0400 +@@ -133,7 +133,7 @@ void mconsole_proc(struct mc_request *re + ptr += strlen("proc"); + ptr = skip_spaces(ptr); + +- file = file_open_root(mnt->mnt_root, mnt, ptr, O_RDONLY); ++ file = file_open_root(mnt->mnt_root, mnt, ptr, O_RDONLY, 0); + if (IS_ERR(file)) { + mconsole_reply(req, "Failed to open file", 1, 0); + printk(KERN_ERR "open /proc/%s: %ld\n", ptr, PTR_ERR(file)); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/um/os-Linux/start_up.c linux-libre-4.4.7-gnu/arch/um/os-Linux/start_up.c +--- linux-libre-4.4-gnu/arch/um/os-Linux/start_up.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/um/os-Linux/start_up.c 2016-04-12 12:09:26.000000000 -0400 +@@ -94,6 +94,8 @@ static int start_ptraced_child(void) + { + int pid, n, status; + ++ fflush(stdout); ++ + pid = fork(); + if (pid == 0) + ptrace_child(); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/crypto/chacha20-ssse3-x86_64.S linux-libre-4.4.7-gnu/arch/x86/crypto/chacha20-ssse3-x86_64.S +--- linux-libre-4.4-gnu/arch/x86/crypto/chacha20-ssse3-x86_64.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/crypto/chacha20-ssse3-x86_64.S 2016-04-12 12:09:26.000000000 -0400 +@@ -157,7 +157,9 @@ ENTRY(chacha20_4block_xor_ssse3) + # done with the slightly better performing SSSE3 byte shuffling, + # 7/12-bit word rotation uses traditional shift+OR. + +- sub $0x40,%rsp ++ mov %rsp,%r11 ++ sub $0x80,%rsp ++ and $~63,%rsp + + # x0..15[0-3] = s0..3[0..3] + movq 0x00(%rdi),%xmm1 +@@ -620,6 +622,6 @@ ENTRY(chacha20_4block_xor_ssse3) + pxor %xmm1,%xmm15 + movdqu %xmm15,0xf0(%rsi) + +- add $0x40,%rsp ++ mov %r11,%rsp + ret + ENDPROC(chacha20_4block_xor_ssse3) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/entry/common.c linux-libre-4.4.7-gnu/arch/x86/entry/common.c +--- linux-libre-4.4-gnu/arch/x86/entry/common.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/entry/common.c 2016-04-12 12:09:26.000000000 -0400 +@@ -268,6 +268,7 @@ static void exit_to_usermode_loop(struct + /* Called with IRQs disabled. */ + __visible inline void prepare_exit_to_usermode(struct pt_regs *regs) + { ++ struct thread_info *ti = pt_regs_to_thread_info(regs); + u32 cached_flags; + + if (IS_ENABLED(CONFIG_PROVE_LOCKING) && WARN_ON(!irqs_disabled())) +@@ -275,12 +276,22 @@ __visible inline void prepare_exit_to_us + + lockdep_sys_exit(); + +- cached_flags = +- READ_ONCE(pt_regs_to_thread_info(regs)->flags); ++ cached_flags = READ_ONCE(ti->flags); + + if (unlikely(cached_flags & EXIT_TO_USERMODE_LOOP_FLAGS)) + exit_to_usermode_loop(regs, cached_flags); + ++#ifdef CONFIG_COMPAT ++ /* ++ * Compat syscalls set TS_COMPAT. Make sure we clear it before ++ * returning to user mode. We need to clear it *after* signal ++ * handling, because syscall restart has a fixup for compat ++ * syscalls. The fixup is exercised by the ptrace_syscall_32 ++ * selftest. ++ */ ++ ti->status &= ~TS_COMPAT; ++#endif ++ + user_enter(); + } + +@@ -332,14 +343,6 @@ __visible inline void syscall_return_slo + if (unlikely(cached_flags & SYSCALL_EXIT_WORK_FLAGS)) + syscall_slow_exit_work(regs, cached_flags); + +-#ifdef CONFIG_COMPAT +- /* +- * Compat syscalls set TS_COMPAT. Make sure we clear it before +- * returning to user mode. +- */ +- ti->status &= ~TS_COMPAT; +-#endif +- + local_irq_disable(); + prepare_exit_to_usermode(regs); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/entry/entry_64_compat.S linux-libre-4.4.7-gnu/arch/x86/entry/entry_64_compat.S +--- linux-libre-4.4-gnu/arch/x86/entry/entry_64_compat.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/entry/entry_64_compat.S 2016-04-12 12:09:26.000000000 -0400 +@@ -267,6 +267,7 @@ ENTRY(entry_INT80_compat) + * Interrupts are off on entry. + */ + PARAVIRT_ADJUST_EXCEPTION_FRAME ++ ASM_CLAC /* Do this early to minimize exposure */ + SWAPGS + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/apic.h linux-libre-4.4.7-gnu/arch/x86/include/asm/apic.h +--- linux-libre-4.4-gnu/arch/x86/include/asm/apic.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/include/asm/apic.h 2016-04-12 12:09:26.000000000 -0400 +@@ -638,8 +638,8 @@ static inline void entering_irq(void) + + static inline void entering_ack_irq(void) + { +- ack_APIC_irq(); + entering_irq(); ++ ack_APIC_irq(); + } + + static inline void ipi_entering_ack_irq(void) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/boot.h linux-libre-4.4.7-gnu/arch/x86/include/asm/boot.h +--- linux-libre-4.4-gnu/arch/x86/include/asm/boot.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/include/asm/boot.h 2016-04-12 12:09:26.000000000 -0400 +@@ -27,7 +27,7 @@ + #define BOOT_HEAP_SIZE 0x400000 + #else /* !CONFIG_KERNEL_BZIP2 */ + +-#define BOOT_HEAP_SIZE 0x8000 ++#define BOOT_HEAP_SIZE 0x10000 + + #endif /* !CONFIG_KERNEL_BZIP2 */ + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/hw_irq.h linux-libre-4.4.7-gnu/arch/x86/include/asm/hw_irq.h +--- linux-libre-4.4-gnu/arch/x86/include/asm/hw_irq.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/include/asm/hw_irq.h 2016-04-12 12:09:26.000000000 -0400 +@@ -136,6 +136,7 @@ struct irq_alloc_info { + struct irq_cfg { + unsigned int dest_apicid; + u8 vector; ++ u8 old_vector; + }; + + extern struct irq_cfg *irq_cfg(unsigned int irq); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/irq.h linux-libre-4.4.7-gnu/arch/x86/include/asm/irq.h +--- linux-libre-4.4-gnu/arch/x86/include/asm/irq.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/include/asm/irq.h 2016-04-12 12:09:26.000000000 -0400 +@@ -23,11 +23,13 @@ extern void irq_ctx_init(int cpu); + + #define __ARCH_HAS_DO_SOFTIRQ + ++struct irq_desc; ++ + #ifdef CONFIG_HOTPLUG_CPU + #include <linux/cpumask.h> + extern int check_irq_vectors_for_cpu_disable(void); + extern void fixup_irqs(void); +-extern void irq_force_complete_move(int); ++extern void irq_force_complete_move(struct irq_desc *desc); + #endif + + #ifdef CONFIG_HAVE_KVM +@@ -37,7 +39,6 @@ extern void kvm_set_posted_intr_wakeup_h + extern void (*x86_platform_ipi_callback)(void); + extern void native_init_IRQ(void); + +-struct irq_desc; + extern bool handle_irq(struct irq_desc *desc, struct pt_regs *regs); + + extern __visible unsigned int do_IRQ(struct pt_regs *regs); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/microcode.h linux-libre-4.4.7-gnu/arch/x86/include/asm/microcode.h +--- linux-libre-4.4-gnu/arch/x86/include/asm/microcode.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/include/asm/microcode.h 2016-04-12 12:09:26.000000000 -0400 +@@ -2,6 +2,7 @@ + #define _ASM_X86_MICROCODE_H + + #include <linux/earlycpio.h> ++#include <linux/initrd.h> + + #define native_rdmsr(msr, val1, val2) \ + do { \ +@@ -168,4 +169,29 @@ static inline void reload_early_microcod + static inline bool + get_builtin_firmware(struct cpio_data *cd, const char *name) { return false; } + #endif ++ ++static inline unsigned long get_initrd_start(void) ++{ ++#ifdef CONFIG_BLK_DEV_INITRD ++ return initrd_start; ++#else ++ return 0; ++#endif ++} ++ ++static inline unsigned long get_initrd_start_addr(void) ++{ ++#ifdef CONFIG_BLK_DEV_INITRD ++#ifdef CONFIG_X86_32 ++ unsigned long *initrd_start_p = (unsigned long *)__pa_nodebug(&initrd_start); ++ ++ return (unsigned long)__pa_nodebug(*initrd_start_p); ++#else ++ return get_initrd_start(); ++#endif ++#else /* CONFIG_BLK_DEV_INITRD */ ++ return 0; ++#endif ++} ++ + #endif /* _ASM_X86_MICROCODE_H */ +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/mmu_context.h linux-libre-4.4.7-gnu/arch/x86/include/asm/mmu_context.h +--- linux-libre-4.4-gnu/arch/x86/include/asm/mmu_context.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/include/asm/mmu_context.h 2016-04-12 12:09:26.000000000 -0400 +@@ -116,8 +116,36 @@ static inline void switch_mm(struct mm_s + #endif + cpumask_set_cpu(cpu, mm_cpumask(next)); + +- /* Re-load page tables */ ++ /* ++ * Re-load page tables. ++ * ++ * This logic has an ordering constraint: ++ * ++ * CPU 0: Write to a PTE for 'next' ++ * CPU 0: load bit 1 in mm_cpumask. if nonzero, send IPI. ++ * CPU 1: set bit 1 in next's mm_cpumask ++ * CPU 1: load from the PTE that CPU 0 writes (implicit) ++ * ++ * We need to prevent an outcome in which CPU 1 observes ++ * the new PTE value and CPU 0 observes bit 1 clear in ++ * mm_cpumask. (If that occurs, then the IPI will never ++ * be sent, and CPU 0's TLB will contain a stale entry.) ++ * ++ * The bad outcome can occur if either CPU's load is ++ * reordered before that CPU's store, so both CPUs must ++ * execute full barriers to prevent this from happening. ++ * ++ * Thus, switch_mm needs a full barrier between the ++ * store to mm_cpumask and any operation that could load ++ * from next->pgd. TLB fills are special and can happen ++ * due to instruction fetches or for no reason at all, ++ * and neither LOCK nor MFENCE orders them. ++ * Fortunately, load_cr3() is serializing and gives the ++ * ordering guarantee we need. ++ * ++ */ + load_cr3(next->pgd); ++ + trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL); + + /* Stop flush ipis for the previous mm */ +@@ -156,10 +184,14 @@ static inline void switch_mm(struct mm_s + * schedule, protecting us from simultaneous changes. + */ + cpumask_set_cpu(cpu, mm_cpumask(next)); ++ + /* + * We were in lazy tlb mode and leave_mm disabled + * tlb flush IPI delivery. We must reload CR3 + * to make sure to use no freed page tables. ++ * ++ * As above, load_cr3() is serializing and orders TLB ++ * fills with respect to the mm_cpumask write. + */ + load_cr3(next->pgd); + trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/perf_event.h linux-libre-4.4.7-gnu/arch/x86/include/asm/perf_event.h +--- linux-libre-4.4-gnu/arch/x86/include/asm/perf_event.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/include/asm/perf_event.h 2016-04-12 12:09:26.000000000 -0400 +@@ -165,6 +165,7 @@ struct x86_pmu_capability { + #define GLOBAL_STATUS_ASIF BIT_ULL(60) + #define GLOBAL_STATUS_COUNTERS_FROZEN BIT_ULL(59) + #define GLOBAL_STATUS_LBRS_FROZEN BIT_ULL(58) ++#define GLOBAL_STATUS_TRACE_TOPAPMI BIT_ULL(55) + + /* + * IBS cpuid feature detection +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/pgtable_types.h linux-libre-4.4.7-gnu/arch/x86/include/asm/pgtable_types.h +--- linux-libre-4.4-gnu/arch/x86/include/asm/pgtable_types.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/include/asm/pgtable_types.h 2016-04-12 12:09:26.000000000 -0400 +@@ -363,20 +363,18 @@ static inline enum page_cache_mode pgpro + } + static inline pgprot_t pgprot_4k_2_large(pgprot_t pgprot) + { ++ pgprotval_t val = pgprot_val(pgprot); + pgprot_t new; +- unsigned long val; + +- val = pgprot_val(pgprot); + pgprot_val(new) = (val & ~(_PAGE_PAT | _PAGE_PAT_LARGE)) | + ((val & _PAGE_PAT) << (_PAGE_BIT_PAT_LARGE - _PAGE_BIT_PAT)); + return new; + } + static inline pgprot_t pgprot_large_2_4k(pgprot_t pgprot) + { ++ pgprotval_t val = pgprot_val(pgprot); + pgprot_t new; +- unsigned long val; + +- val = pgprot_val(pgprot); + pgprot_val(new) = (val & ~(_PAGE_PAT | _PAGE_PAT_LARGE)) | + ((val & _PAGE_PAT_LARGE) >> + (_PAGE_BIT_PAT_LARGE - _PAGE_BIT_PAT)); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/xen/hypervisor.h linux-libre-4.4.7-gnu/arch/x86/include/asm/xen/hypervisor.h +--- linux-libre-4.4-gnu/arch/x86/include/asm/xen/hypervisor.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/include/asm/xen/hypervisor.h 2016-04-12 12:09:26.000000000 -0400 +@@ -62,4 +62,6 @@ void xen_arch_register_cpu(int num); + void xen_arch_unregister_cpu(int num); + #endif + ++extern void xen_set_iopl_mask(unsigned mask); ++ + #endif /* _ASM_X86_XEN_HYPERVISOR_H */ +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/Kconfig linux-libre-4.4.7-gnu/arch/x86/Kconfig +--- linux-libre-4.4-gnu/arch/x86/Kconfig 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/Kconfig 2016-04-12 12:09:26.000000000 -0400 +@@ -1126,22 +1126,23 @@ config MICROCODE + bool "CPU microcode loading support" + default y + depends on CPU_SUP_AMD || CPU_SUP_INTEL +- depends on BLK_DEV_INITRD + select FW_LOADER + ---help--- +- + If you say Y here, you will be able to update the microcode on +- certain Intel and AMD processors. The Intel support is for the +- IA32 family, e.g. Pentium Pro, Pentium II, Pentium III, Pentium 4, +- Xeon etc. The AMD support is for families 0x10 and later. You will +- obviously need the actual microcode binary data itself which is not +- shipped with the Linux kernel. ++ Intel and AMD processors. The Intel support is for the IA32 family, ++ e.g. Pentium Pro, Pentium II, Pentium III, Pentium 4, Xeon etc. The ++ AMD support is for families 0x10 and later. You will obviously need ++ the actual microcode binary data itself which is not shipped with ++ the Linux kernel. + +- This option selects the general module only, you need to select +- at least one vendor specific module as well. ++ The preferred method to load microcode from a detached initrd is described ++ in Documentation/x86/early-microcode.txt. For that you need to enable ++ CONFIG_BLK_DEV_INITRD in order for the loader to be able to scan the ++ initrd for microcode blobs. + +- To compile this driver as a module, choose M here: the module +- will be called microcode. ++ In addition, you can build-in the microcode into the kernel. For that you ++ need to enable FIRMWARE_IN_KERNEL and add the vendor-supplied microcode ++ to the CONFIG_EXTRA_FIRMWARE config option. + + config MICROCODE_INTEL + bool "Intel microcode loading support" +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/acpi/sleep.c linux-libre-4.4.7-gnu/arch/x86/kernel/acpi/sleep.c +--- linux-libre-4.4-gnu/arch/x86/kernel/acpi/sleep.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kernel/acpi/sleep.c 2016-04-12 12:09:26.000000000 -0400 +@@ -16,6 +16,7 @@ + #include <asm/cacheflush.h> + #include <asm/realmode.h> + ++#include <linux/ftrace.h> + #include "../../realmode/rm/wakeup.h" + #include "sleep.h" + +@@ -107,7 +108,13 @@ int x86_acpi_suspend_lowlevel(void) + saved_magic = 0x123456789abcdef0L; + #endif /* CONFIG_64BIT */ + ++ /* ++ * Pause/unpause graph tracing around do_suspend_lowlevel as it has ++ * inconsistent call/return info after it jumps to the wakeup vector. ++ */ ++ pause_graph_tracing(); + do_suspend_lowlevel(); ++ unpause_graph_tracing(); + return 0; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/apic/io_apic.c linux-libre-4.4.7-gnu/arch/x86/kernel/apic/io_apic.c +--- linux-libre-4.4-gnu/arch/x86/kernel/apic/io_apic.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kernel/apic/io_apic.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2521,6 +2521,7 @@ void __init setup_ioapic_dest(void) + { + int pin, ioapic, irq, irq_entry; + const struct cpumask *mask; ++ struct irq_desc *desc; + struct irq_data *idata; + struct irq_chip *chip; + +@@ -2536,7 +2537,9 @@ void __init setup_ioapic_dest(void) + if (irq < 0 || !mp_init_irq_at_boot(ioapic, irq)) + continue; + +- idata = irq_get_irq_data(irq); ++ desc = irq_to_desc(irq); ++ raw_spin_lock_irq(&desc->lock); ++ idata = irq_desc_get_irq_data(desc); + + /* + * Honour affinities which have been set in early boot +@@ -2550,6 +2553,7 @@ void __init setup_ioapic_dest(void) + /* Might be lapic_chip for irq 0 */ + if (chip->irq_set_affinity) + chip->irq_set_affinity(idata, mask, false); ++ raw_spin_unlock_irq(&desc->lock); + } + } + #endif +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/apic/vector.c linux-libre-4.4.7-gnu/arch/x86/kernel/apic/vector.c +--- linux-libre-4.4-gnu/arch/x86/kernel/apic/vector.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kernel/apic/vector.c 2016-04-12 12:09:26.000000000 -0400 +@@ -30,7 +30,7 @@ struct apic_chip_data { + + struct irq_domain *x86_vector_domain; + static DEFINE_RAW_SPINLOCK(vector_lock); +-static cpumask_var_t vector_cpumask; ++static cpumask_var_t vector_cpumask, vector_searchmask, searched_cpumask; + static struct irq_chip lapic_controller; + #ifdef CONFIG_X86_IO_APIC + static struct apic_chip_data *legacy_irq_data[NR_IRQS_LEGACY]; +@@ -116,35 +116,47 @@ static int __assign_irq_vector(int irq, + */ + static int current_vector = FIRST_EXTERNAL_VECTOR + VECTOR_OFFSET_START; + static int current_offset = VECTOR_OFFSET_START % 16; +- int cpu, err; ++ int cpu, vector; + +- if (d->move_in_progress) ++ /* ++ * If there is still a move in progress or the previous move has not ++ * been cleaned up completely, tell the caller to come back later. ++ */ ++ if (d->move_in_progress || ++ cpumask_intersects(d->old_domain, cpu_online_mask)) + return -EBUSY; + + /* Only try and allocate irqs on cpus that are present */ +- err = -ENOSPC; + cpumask_clear(d->old_domain); ++ cpumask_clear(searched_cpumask); + cpu = cpumask_first_and(mask, cpu_online_mask); + while (cpu < nr_cpu_ids) { +- int new_cpu, vector, offset; ++ int new_cpu, offset; + ++ /* Get the possible target cpus for @mask/@cpu from the apic */ + apic->vector_allocation_domain(cpu, vector_cpumask, mask); + ++ /* ++ * Clear the offline cpus from @vector_cpumask for searching ++ * and verify whether the result overlaps with @mask. If true, ++ * then the call to apic->cpu_mask_to_apicid_and() will ++ * succeed as well. If not, no point in trying to find a ++ * vector in this mask. ++ */ ++ cpumask_and(vector_searchmask, vector_cpumask, cpu_online_mask); ++ if (!cpumask_intersects(vector_searchmask, mask)) ++ goto next_cpu; ++ + if (cpumask_subset(vector_cpumask, d->domain)) { +- err = 0; + if (cpumask_equal(vector_cpumask, d->domain)) +- break; ++ goto success; + /* +- * New cpumask using the vector is a proper subset of +- * the current in use mask. So cleanup the vector +- * allocation for the members that are not used anymore. ++ * Mark the cpus which are not longer in the mask for ++ * cleanup. + */ +- cpumask_andnot(d->old_domain, d->domain, +- vector_cpumask); +- d->move_in_progress = +- cpumask_intersects(d->old_domain, cpu_online_mask); +- cpumask_and(d->domain, d->domain, vector_cpumask); +- break; ++ cpumask_andnot(d->old_domain, d->domain, vector_cpumask); ++ vector = d->cfg.vector; ++ goto update; + } + + vector = current_vector; +@@ -156,45 +168,61 @@ next: + vector = FIRST_EXTERNAL_VECTOR + offset; + } + +- if (unlikely(current_vector == vector)) { +- cpumask_or(d->old_domain, d->old_domain, +- vector_cpumask); +- cpumask_andnot(vector_cpumask, mask, d->old_domain); +- cpu = cpumask_first_and(vector_cpumask, +- cpu_online_mask); +- continue; +- } ++ /* If the search wrapped around, try the next cpu */ ++ if (unlikely(current_vector == vector)) ++ goto next_cpu; + + if (test_bit(vector, used_vectors)) + goto next; + +- for_each_cpu_and(new_cpu, vector_cpumask, cpu_online_mask) { ++ for_each_cpu(new_cpu, vector_searchmask) { + if (!IS_ERR_OR_NULL(per_cpu(vector_irq, new_cpu)[vector])) + goto next; + } + /* Found one! */ + current_vector = vector; + current_offset = offset; +- if (d->cfg.vector) { ++ /* Schedule the old vector for cleanup on all cpus */ ++ if (d->cfg.vector) + cpumask_copy(d->old_domain, d->domain); +- d->move_in_progress = +- cpumask_intersects(d->old_domain, cpu_online_mask); +- } +- for_each_cpu_and(new_cpu, vector_cpumask, cpu_online_mask) ++ for_each_cpu(new_cpu, vector_searchmask) + per_cpu(vector_irq, new_cpu)[vector] = irq_to_desc(irq); +- d->cfg.vector = vector; +- cpumask_copy(d->domain, vector_cpumask); +- err = 0; +- break; +- } ++ goto update; + +- if (!err) { +- /* cache destination APIC IDs into cfg->dest_apicid */ +- err = apic->cpu_mask_to_apicid_and(mask, d->domain, +- &d->cfg.dest_apicid); ++next_cpu: ++ /* ++ * We exclude the current @vector_cpumask from the requested ++ * @mask and try again with the next online cpu in the ++ * result. We cannot modify @mask, so we use @vector_cpumask ++ * as a temporary buffer here as it will be reassigned when ++ * calling apic->vector_allocation_domain() above. ++ */ ++ cpumask_or(searched_cpumask, searched_cpumask, vector_cpumask); ++ cpumask_andnot(vector_cpumask, mask, searched_cpumask); ++ cpu = cpumask_first_and(vector_cpumask, cpu_online_mask); ++ continue; + } ++ return -ENOSPC; + +- return err; ++update: ++ /* ++ * Exclude offline cpus from the cleanup mask and set the ++ * move_in_progress flag when the result is not empty. ++ */ ++ cpumask_and(d->old_domain, d->old_domain, cpu_online_mask); ++ d->move_in_progress = !cpumask_empty(d->old_domain); ++ d->cfg.old_vector = d->move_in_progress ? d->cfg.vector : 0; ++ d->cfg.vector = vector; ++ cpumask_copy(d->domain, vector_cpumask); ++success: ++ /* ++ * Cache destination APIC IDs into cfg->dest_apicid. This cannot fail ++ * as we already established, that mask & d->domain & cpu_online_mask ++ * is not empty. ++ */ ++ BUG_ON(apic->cpu_mask_to_apicid_and(mask, d->domain, ++ &d->cfg.dest_apicid)); ++ return 0; + } + + static int assign_irq_vector(int irq, struct apic_chip_data *data, +@@ -224,10 +252,8 @@ static int assign_irq_vector_policy(int + static void clear_irq_vector(int irq, struct apic_chip_data *data) + { + struct irq_desc *desc; +- unsigned long flags; + int cpu, vector; + +- raw_spin_lock_irqsave(&vector_lock, flags); + BUG_ON(!data->cfg.vector); + + vector = data->cfg.vector; +@@ -237,10 +263,13 @@ static void clear_irq_vector(int irq, st + data->cfg.vector = 0; + cpumask_clear(data->domain); + +- if (likely(!data->move_in_progress)) { +- raw_spin_unlock_irqrestore(&vector_lock, flags); ++ /* ++ * If move is in progress or the old_domain mask is not empty, ++ * i.e. the cleanup IPI has not been processed yet, we need to remove ++ * the old references to desc from all cpus vector tables. ++ */ ++ if (!data->move_in_progress && cpumask_empty(data->old_domain)) + return; +- } + + desc = irq_to_desc(irq); + for_each_cpu_and(cpu, data->old_domain, cpu_online_mask) { +@@ -253,7 +282,6 @@ static void clear_irq_vector(int irq, st + } + } + data->move_in_progress = 0; +- raw_spin_unlock_irqrestore(&vector_lock, flags); + } + + void init_irq_alloc_info(struct irq_alloc_info *info, +@@ -274,19 +302,24 @@ void copy_irq_alloc_info(struct irq_allo + static void x86_vector_free_irqs(struct irq_domain *domain, + unsigned int virq, unsigned int nr_irqs) + { ++ struct apic_chip_data *apic_data; + struct irq_data *irq_data; ++ unsigned long flags; + int i; + + for (i = 0; i < nr_irqs; i++) { + irq_data = irq_domain_get_irq_data(x86_vector_domain, virq + i); + if (irq_data && irq_data->chip_data) { ++ raw_spin_lock_irqsave(&vector_lock, flags); + clear_irq_vector(virq + i, irq_data->chip_data); +- free_apic_chip_data(irq_data->chip_data); ++ apic_data = irq_data->chip_data; ++ irq_domain_reset_irq_data(irq_data); ++ raw_spin_unlock_irqrestore(&vector_lock, flags); ++ free_apic_chip_data(apic_data); + #ifdef CONFIG_X86_IO_APIC + if (virq + i < nr_legacy_irqs()) + legacy_irq_data[virq + i] = NULL; + #endif +- irq_domain_reset_irq_data(irq_data); + } + } + } +@@ -404,6 +437,8 @@ int __init arch_early_irq_init(void) + arch_init_htirq_domain(x86_vector_domain); + + BUG_ON(!alloc_cpumask_var(&vector_cpumask, GFP_KERNEL)); ++ BUG_ON(!alloc_cpumask_var(&vector_searchmask, GFP_KERNEL)); ++ BUG_ON(!alloc_cpumask_var(&searched_cpumask, GFP_KERNEL)); + + return arch_early_ioapic_init(); + } +@@ -492,14 +527,7 @@ static int apic_set_affinity(struct irq_ + return -EINVAL; + + err = assign_irq_vector(irq, data, dest); +- if (err) { +- if (assign_irq_vector(irq, data, +- irq_data_get_affinity_mask(irq_data))) +- pr_err("Failed to recover vector for irq %d\n", irq); +- return err; +- } +- +- return IRQ_SET_MASK_OK; ++ return err ? err : IRQ_SET_MASK_OK; + } + + static struct irq_chip lapic_controller = { +@@ -511,20 +539,12 @@ static struct irq_chip lapic_controller + #ifdef CONFIG_SMP + static void __send_cleanup_vector(struct apic_chip_data *data) + { +- cpumask_var_t cleanup_mask; +- +- if (unlikely(!alloc_cpumask_var(&cleanup_mask, GFP_ATOMIC))) { +- unsigned int i; +- +- for_each_cpu_and(i, data->old_domain, cpu_online_mask) +- apic->send_IPI_mask(cpumask_of(i), +- IRQ_MOVE_CLEANUP_VECTOR); +- } else { +- cpumask_and(cleanup_mask, data->old_domain, cpu_online_mask); +- apic->send_IPI_mask(cleanup_mask, IRQ_MOVE_CLEANUP_VECTOR); +- free_cpumask_var(cleanup_mask); +- } ++ raw_spin_lock(&vector_lock); ++ cpumask_and(data->old_domain, data->old_domain, cpu_online_mask); + data->move_in_progress = 0; ++ if (!cpumask_empty(data->old_domain)) ++ apic->send_IPI_mask(data->old_domain, IRQ_MOVE_CLEANUP_VECTOR); ++ raw_spin_unlock(&vector_lock); + } + + void send_cleanup_vector(struct irq_cfg *cfg) +@@ -568,12 +588,25 @@ asmlinkage __visible void smp_irq_move_c + goto unlock; + + /* +- * Check if the irq migration is in progress. If so, we +- * haven't received the cleanup request yet for this irq. ++ * Nothing to cleanup if irq migration is in progress ++ * or this cpu is not set in the cleanup mask. + */ +- if (data->move_in_progress) ++ if (data->move_in_progress || ++ !cpumask_test_cpu(me, data->old_domain)) + goto unlock; + ++ /* ++ * We have two cases to handle here: ++ * 1) vector is unchanged but the target mask got reduced ++ * 2) vector and the target mask has changed ++ * ++ * #1 is obvious, but in #2 we have two vectors with the same ++ * irq descriptor: the old and the new vector. So we need to ++ * make sure that we only cleanup the old vector. The new ++ * vector has the current @vector number in the config and ++ * this cpu is part of the target mask. We better leave that ++ * one alone. ++ */ + if (vector == data->cfg.vector && + cpumask_test_cpu(me, data->domain)) + goto unlock; +@@ -591,6 +624,7 @@ asmlinkage __visible void smp_irq_move_c + goto unlock; + } + __this_cpu_write(vector_irq[vector], VECTOR_UNUSED); ++ cpumask_clear_cpu(me, data->old_domain); + unlock: + raw_spin_unlock(&desc->lock); + } +@@ -619,12 +653,99 @@ void irq_complete_move(struct irq_cfg *c + __irq_complete_move(cfg, ~get_irq_regs()->orig_ax); + } + +-void irq_force_complete_move(int irq) ++/* ++ * Called from fixup_irqs() with @desc->lock held and interrupts disabled. ++ */ ++void irq_force_complete_move(struct irq_desc *desc) + { +- struct irq_cfg *cfg = irq_cfg(irq); ++ struct irq_data *irqdata = irq_desc_get_irq_data(desc); ++ struct apic_chip_data *data = apic_chip_data(irqdata); ++ struct irq_cfg *cfg = data ? &data->cfg : NULL; ++ unsigned int cpu; + +- if (cfg) +- __irq_complete_move(cfg, cfg->vector); ++ if (!cfg) ++ return; ++ ++ /* ++ * This is tricky. If the cleanup of @data->old_domain has not been ++ * done yet, then the following setaffinity call will fail with ++ * -EBUSY. This can leave the interrupt in a stale state. ++ * ++ * All CPUs are stuck in stop machine with interrupts disabled so ++ * calling __irq_complete_move() would be completely pointless. ++ */ ++ raw_spin_lock(&vector_lock); ++ /* ++ * Clean out all offline cpus (including the outgoing one) from the ++ * old_domain mask. ++ */ ++ cpumask_and(data->old_domain, data->old_domain, cpu_online_mask); ++ ++ /* ++ * If move_in_progress is cleared and the old_domain mask is empty, ++ * then there is nothing to cleanup. fixup_irqs() will take care of ++ * the stale vectors on the outgoing cpu. ++ */ ++ if (!data->move_in_progress && cpumask_empty(data->old_domain)) { ++ raw_spin_unlock(&vector_lock); ++ return; ++ } ++ ++ /* ++ * 1) The interrupt is in move_in_progress state. That means that we ++ * have not seen an interrupt since the io_apic was reprogrammed to ++ * the new vector. ++ * ++ * 2) The interrupt has fired on the new vector, but the cleanup IPIs ++ * have not been processed yet. ++ */ ++ if (data->move_in_progress) { ++ /* ++ * In theory there is a race: ++ * ++ * set_ioapic(new_vector) <-- Interrupt is raised before update ++ * is effective, i.e. it's raised on ++ * the old vector. ++ * ++ * So if the target cpu cannot handle that interrupt before ++ * the old vector is cleaned up, we get a spurious interrupt ++ * and in the worst case the ioapic irq line becomes stale. ++ * ++ * But in case of cpu hotplug this should be a non issue ++ * because if the affinity update happens right before all ++ * cpus rendevouz in stop machine, there is no way that the ++ * interrupt can be blocked on the target cpu because all cpus ++ * loops first with interrupts enabled in stop machine, so the ++ * old vector is not yet cleaned up when the interrupt fires. ++ * ++ * So the only way to run into this issue is if the delivery ++ * of the interrupt on the apic/system bus would be delayed ++ * beyond the point where the target cpu disables interrupts ++ * in stop machine. I doubt that it can happen, but at least ++ * there is a theroretical chance. Virtualization might be ++ * able to expose this, but AFAICT the IOAPIC emulation is not ++ * as stupid as the real hardware. ++ * ++ * Anyway, there is nothing we can do about that at this point ++ * w/o refactoring the whole fixup_irq() business completely. ++ * We print at least the irq number and the old vector number, ++ * so we have the necessary information when a problem in that ++ * area arises. ++ */ ++ pr_warn("IRQ fixup: irq %d move in progress, old vector %d\n", ++ irqdata->irq, cfg->old_vector); ++ } ++ /* ++ * If old_domain is not empty, then other cpus still have the irq ++ * descriptor set in their vector array. Clean it up. ++ */ ++ for_each_cpu(cpu, data->old_domain) ++ per_cpu(vector_irq, cpu)[cfg->old_vector] = VECTOR_UNUSED; ++ ++ /* Cleanup the left overs of the (half finished) move */ ++ cpumask_clear(data->old_domain); ++ data->move_in_progress = 0; ++ raw_spin_unlock(&vector_lock); + } + #endif + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/microcode/intel.c linux-libre-4.4.7-gnu/arch/x86/kernel/cpu/microcode/intel.c +--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/microcode/intel.c 2016-01-10 20:55:06.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kernel/cpu/microcode/intel.c 2016-04-12 21:11:04.000000000 -0400 +@@ -555,10 +555,14 @@ scan_microcode(struct mc_saved_data *mc_ + cd.data = NULL; + cd.size = 0; + +- cd = find_cpio_data(p, (void *)start, size, &offset); +- if (!cd.data) { ++ /* try built-in microcode if no initrd */ ++ if (!size) { + if (!load_builtin_intel_microcode(&cd)) + return UCODE_ERROR; ++ } else { ++ cd = find_cpio_data(p, (void *)start, size, &offset); ++ if (!cd.data) ++ return UCODE_ERROR; + } + + return get_matching_model_microcode(0, start, cd.data, cd.size, +@@ -694,7 +698,7 @@ int __init save_microcode_in_initrd_inte + if (count == 0) + return ret; + +- copy_initrd_ptrs(mc_saved, mc_saved_in_initrd, initrd_start, count); ++ copy_initrd_ptrs(mc_saved, mc_saved_in_initrd, get_initrd_start(), count); + ret = save_microcode(&mc_saved_data, mc_saved, count); + if (ret) + pr_err("Cannot save microcode patches from initrd.\n"); +@@ -732,16 +736,20 @@ void __init load_ucode_intel_bsp(void) + struct boot_params *p; + + p = (struct boot_params *)__pa_nodebug(&boot_params); +- start = p->hdr.ramdisk_image; + size = p->hdr.ramdisk_size; + +- _load_ucode_intel_bsp( +- (struct mc_saved_data *)__pa_nodebug(&mc_saved_data), +- (unsigned long *)__pa_nodebug(&mc_saved_in_initrd), +- start, size); ++ /* ++ * Set start only if we have an initrd image. We cannot use initrd_start ++ * because it is not set that early yet. ++ */ ++ start = (size ? p->hdr.ramdisk_image : 0); ++ ++ _load_ucode_intel_bsp((struct mc_saved_data *)__pa_nodebug(&mc_saved_data), ++ (unsigned long *)__pa_nodebug(&mc_saved_in_initrd), ++ start, size); + #else +- start = boot_params.hdr.ramdisk_image + PAGE_OFFSET; + size = boot_params.hdr.ramdisk_size; ++ start = (size ? boot_params.hdr.ramdisk_image + PAGE_OFFSET : 0); + + _load_ucode_intel_bsp(&mc_saved_data, mc_saved_in_initrd, start, size); + #endif +@@ -752,20 +760,14 @@ void load_ucode_intel_ap(void) + struct mc_saved_data *mc_saved_data_p; + struct ucode_cpu_info uci; + unsigned long *mc_saved_in_initrd_p; +- unsigned long initrd_start_addr; + enum ucode_state ret; + #ifdef CONFIG_X86_32 +- unsigned long *initrd_start_p; + +- mc_saved_in_initrd_p = +- (unsigned long *)__pa_nodebug(mc_saved_in_initrd); ++ mc_saved_in_initrd_p = (unsigned long *)__pa_nodebug(mc_saved_in_initrd); + mc_saved_data_p = (struct mc_saved_data *)__pa_nodebug(&mc_saved_data); +- initrd_start_p = (unsigned long *)__pa_nodebug(&initrd_start); +- initrd_start_addr = (unsigned long)__pa_nodebug(*initrd_start_p); + #else +- mc_saved_data_p = &mc_saved_data; + mc_saved_in_initrd_p = mc_saved_in_initrd; +- initrd_start_addr = initrd_start; ++ mc_saved_data_p = &mc_saved_data; + #endif + + /* +@@ -777,7 +779,7 @@ void load_ucode_intel_ap(void) + + collect_cpu_info_early(&uci); + ret = load_microcode(mc_saved_data_p, mc_saved_in_initrd_p, +- initrd_start_addr, &uci); ++ get_initrd_start_addr(), &uci); + + if (ret != UCODE_OK) + return; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event.c linux-libre-4.4.7-gnu/arch/x86/kernel/cpu/perf_event.c +--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kernel/cpu/perf_event.c 2016-04-12 12:09:26.000000000 -0400 +@@ -593,6 +593,19 @@ void x86_pmu_disable_all(void) + } + } + ++/* ++ * There may be PMI landing after enabled=0. The PMI hitting could be before or ++ * after disable_all. ++ * ++ * If PMI hits before disable_all, the PMU will be disabled in the NMI handler. ++ * It will not be re-enabled in the NMI handler again, because enabled=0. After ++ * handling the NMI, disable_all will be called, which will not change the ++ * state either. If PMI hits after disable_all, the PMU is already disabled ++ * before entering NMI handler. The NMI handler will not change the state ++ * either. ++ * ++ * So either situation is harmless. ++ */ + static void x86_pmu_disable(struct pmu *pmu) + { + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event.h linux-libre-4.4.7-gnu/arch/x86/kernel/cpu/perf_event.h +--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kernel/cpu/perf_event.h 2016-04-12 12:09:26.000000000 -0400 +@@ -591,6 +591,7 @@ struct x86_pmu { + pebs_active :1, + pebs_broken :1; + int pebs_record_size; ++ int pebs_buffer_size; + void (*drain_pebs)(struct pt_regs *regs); + struct event_constraint *pebs_constraints; + void (*pebs_aliases)(struct perf_event *event); +@@ -907,6 +908,8 @@ void intel_pmu_lbr_init_hsw(void); + + void intel_pmu_lbr_init_skl(void); + ++void intel_pmu_pebs_data_source_nhm(void); ++ + int intel_pmu_setup_lbr_filter(struct perf_event *event); + + void intel_pt_interrupt(void); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_intel.c linux-libre-4.4.7-gnu/arch/x86/kernel/cpu/perf_event_intel.c +--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_intel.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kernel/cpu/perf_event_intel.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1458,7 +1458,15 @@ static __initconst const u64 slm_hw_cach + }; + + /* +- * Use from PMIs where the LBRs are already disabled. ++ * Used from PMIs where the LBRs are already disabled. ++ * ++ * This function could be called consecutively. It is required to remain in ++ * disabled state if called consecutively. ++ * ++ * During consecutive calls, the same disable value will be written to related ++ * registers, so the PMU state remains unchanged. hw.state in ++ * intel_bts_disable_local will remain PERF_HES_STOPPED too in consecutive ++ * calls. + */ + static void __intel_pmu_disable_all(void) + { +@@ -1840,6 +1848,16 @@ again: + if (__test_and_clear_bit(62, (unsigned long *)&status)) { + handled++; + x86_pmu.drain_pebs(regs); ++ /* ++ * There are cases where, even though, the PEBS ovfl bit is set ++ * in GLOBAL_OVF_STATUS, the PEBS events may also have their ++ * overflow bits set for their counters. We must clear them ++ * here because they have been processed as exact samples in ++ * the drain_pebs() routine. They must not be processed again ++ * in the for_each_bit_set() loop for regular samples below. ++ */ ++ status &= ~cpuc->pebs_enabled; ++ status &= x86_pmu.intel_ctrl | GLOBAL_STATUS_TRACE_TOPAPMI; + } + + /* +@@ -1885,7 +1903,10 @@ again: + goto again; + + done: +- __intel_pmu_enable_all(0, true); ++ /* Only restore PMU state when it's active. See x86_pmu_disable(). */ ++ if (cpuc->enabled) ++ __intel_pmu_enable_all(0, true); ++ + /* + * Only unmask the NMI after the overflow counters + * have been reset. This avoids spurious NMIs on +@@ -3315,6 +3336,7 @@ __init int intel_pmu_init(void) + intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = + X86_CONFIG(.event=0xb1, .umask=0x3f, .inv=1, .cmask=1); + ++ intel_pmu_pebs_data_source_nhm(); + x86_add_quirk(intel_nehalem_quirk); + + pr_cont("Nehalem events, "); +@@ -3377,6 +3399,7 @@ __init int intel_pmu_init(void) + intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = + X86_CONFIG(.event=0xb1, .umask=0x3f, .inv=1, .cmask=1); + ++ intel_pmu_pebs_data_source_nhm(); + pr_cont("Westmere events, "); + break; + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_intel_ds.c linux-libre-4.4.7-gnu/arch/x86/kernel/cpu/perf_event_intel_ds.c +--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_intel_ds.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kernel/cpu/perf_event_intel_ds.c 2016-04-12 12:09:26.000000000 -0400 +@@ -51,7 +51,8 @@ union intel_x86_pebs_dse { + #define OP_LH (P(OP, LOAD) | P(LVL, HIT)) + #define SNOOP_NONE_MISS (P(SNOOP, NONE) | P(SNOOP, MISS)) + +-static const u64 pebs_data_source[] = { ++/* Version for Sandy Bridge and later */ ++static u64 pebs_data_source[] = { + P(OP, LOAD) | P(LVL, MISS) | P(LVL, L3) | P(SNOOP, NA),/* 0x00:ukn L3 */ + OP_LH | P(LVL, L1) | P(SNOOP, NONE), /* 0x01: L1 local */ + OP_LH | P(LVL, LFB) | P(SNOOP, NONE), /* 0x02: LFB hit */ +@@ -70,6 +71,14 @@ static const u64 pebs_data_source[] = { + OP_LH | P(LVL, UNC) | P(SNOOP, NONE), /* 0x0f: uncached */ + }; + ++/* Patch up minor differences in the bits */ ++void __init intel_pmu_pebs_data_source_nhm(void) ++{ ++ pebs_data_source[0x05] = OP_LH | P(LVL, L3) | P(SNOOP, HIT); ++ pebs_data_source[0x06] = OP_LH | P(LVL, L3) | P(SNOOP, HITM); ++ pebs_data_source[0x07] = OP_LH | P(LVL, L3) | P(SNOOP, HITM); ++} ++ + static u64 precise_store_data(u64 status) + { + union intel_x86_pebs_dse dse; +@@ -269,7 +278,7 @@ static int alloc_pebs_buffer(int cpu) + if (!x86_pmu.pebs) + return 0; + +- buffer = kzalloc_node(PEBS_BUFFER_SIZE, GFP_KERNEL, node); ++ buffer = kzalloc_node(x86_pmu.pebs_buffer_size, GFP_KERNEL, node); + if (unlikely(!buffer)) + return -ENOMEM; + +@@ -286,7 +295,7 @@ static int alloc_pebs_buffer(int cpu) + per_cpu(insn_buffer, cpu) = ibuffer; + } + +- max = PEBS_BUFFER_SIZE / x86_pmu.pebs_record_size; ++ max = x86_pmu.pebs_buffer_size / x86_pmu.pebs_record_size; + + ds->pebs_buffer_base = (u64)(unsigned long)buffer; + ds->pebs_index = ds->pebs_buffer_base; +@@ -1296,6 +1305,7 @@ void __init intel_ds_init(void) + + x86_pmu.bts = boot_cpu_has(X86_FEATURE_BTS); + x86_pmu.pebs = boot_cpu_has(X86_FEATURE_PEBS); ++ x86_pmu.pebs_buffer_size = PEBS_BUFFER_SIZE; + if (x86_pmu.pebs) { + char pebs_type = x86_pmu.intel_cap.pebs_trap ? '+' : '-'; + int format = x86_pmu.intel_cap.pebs_format; +@@ -1304,6 +1314,14 @@ void __init intel_ds_init(void) + case 0: + printk(KERN_CONT "PEBS fmt0%c, ", pebs_type); + x86_pmu.pebs_record_size = sizeof(struct pebs_record_core); ++ /* ++ * Using >PAGE_SIZE buffers makes the WRMSR to ++ * PERF_GLOBAL_CTRL in intel_pmu_enable_all() ++ * mysteriously hang on Core2. ++ * ++ * As a workaround, we don't do this. ++ */ ++ x86_pmu.pebs_buffer_size = PAGE_SIZE; + x86_pmu.drain_pebs = intel_pmu_drain_pebs_core; + break; + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_knc.c linux-libre-4.4.7-gnu/arch/x86/kernel/cpu/perf_event_knc.c +--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_knc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kernel/cpu/perf_event_knc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -263,7 +263,9 @@ again: + goto again; + + done: +- knc_pmu_enable_all(0); ++ /* Only restore PMU state when it's active. See x86_pmu_disable(). */ ++ if (cpuc->enabled) ++ knc_pmu_enable_all(0); + + return handled; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/ioport.c linux-libre-4.4.7-gnu/arch/x86/kernel/ioport.c +--- linux-libre-4.4-gnu/arch/x86/kernel/ioport.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kernel/ioport.c 2016-04-12 12:09:26.000000000 -0400 +@@ -96,9 +96,14 @@ asmlinkage long sys_ioperm(unsigned long + SYSCALL_DEFINE1(iopl, unsigned int, level) + { + struct pt_regs *regs = current_pt_regs(); +- unsigned int old = (regs->flags >> 12) & 3; + struct thread_struct *t = ¤t->thread; + ++ /* ++ * Careful: the IOPL bits in regs->flags are undefined under Xen PV ++ * and changing them has no effect. ++ */ ++ unsigned int old = t->iopl >> X86_EFLAGS_IOPL_BIT; ++ + if (level > 3) + return -EINVAL; + /* Trying to gain more privileges? */ +@@ -106,8 +111,9 @@ SYSCALL_DEFINE1(iopl, unsigned int, leve + if (!capable(CAP_SYS_RAWIO)) + return -EPERM; + } +- regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12); +- t->iopl = level << 12; ++ regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | ++ (level << X86_EFLAGS_IOPL_BIT); ++ t->iopl = level << X86_EFLAGS_IOPL_BIT; + set_iopl_mask(t->iopl); + + return 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/irq.c linux-libre-4.4.7-gnu/arch/x86/kernel/irq.c +--- linux-libre-4.4-gnu/arch/x86/kernel/irq.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kernel/irq.c 2016-04-12 12:09:26.000000000 -0400 +@@ -462,7 +462,7 @@ void fixup_irqs(void) + * non intr-remapping case, we can't wait till this interrupt + * arrives at this cpu before completing the irq move. + */ +- irq_force_complete_move(irq); ++ irq_force_complete_move(desc); + + if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids) { + break_affinity = 1; +@@ -470,6 +470,15 @@ void fixup_irqs(void) + } + + chip = irq_data_get_irq_chip(data); ++ /* ++ * The interrupt descriptor might have been cleaned up ++ * already, but it is not yet removed from the radix tree ++ */ ++ if (!chip) { ++ raw_spin_unlock(&desc->lock); ++ continue; ++ } ++ + if (!irqd_can_move_in_process_context(data) && chip->irq_mask) + chip->irq_mask(data); + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/process_64.c linux-libre-4.4.7-gnu/arch/x86/kernel/process_64.c +--- linux-libre-4.4-gnu/arch/x86/kernel/process_64.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kernel/process_64.c 2016-04-12 12:09:26.000000000 -0400 +@@ -48,6 +48,7 @@ + #include <asm/syscalls.h> + #include <asm/debugreg.h> + #include <asm/switch_to.h> ++#include <asm/xen/hypervisor.h> + + asmlinkage extern void ret_from_fork(void); + +@@ -411,6 +412,17 @@ __switch_to(struct task_struct *prev_p, + task_thread_info(prev_p)->flags & _TIF_WORK_CTXSW_PREV)) + __switch_to_xtra(prev_p, next_p, tss); + ++#ifdef CONFIG_XEN ++ /* ++ * On Xen PV, IOPL bits in pt_regs->flags have no effect, and ++ * current_pt_regs()->flags may not match the current task's ++ * intended IOPL. We need to switch it manually. ++ */ ++ if (unlikely(static_cpu_has(X86_FEATURE_XENPV) && ++ prev->iopl != next->iopl)) ++ xen_set_iopl_mask(next->iopl); ++#endif ++ + if (static_cpu_has_bug(X86_BUG_SYSRET_SS_ATTRS)) { + /* + * AMD CPUs have a misfeature: SYSRET sets the SS selector but +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/reboot.c linux-libre-4.4.7-gnu/arch/x86/kernel/reboot.c +--- linux-libre-4.4-gnu/arch/x86/kernel/reboot.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kernel/reboot.c 2016-04-12 12:09:26.000000000 -0400 +@@ -182,6 +182,14 @@ static struct dmi_system_id __initdata r + DMI_MATCH(DMI_PRODUCT_NAME, "iMac9,1"), + }, + }, ++ { /* Handle problems with rebooting on the iMac10,1. */ ++ .callback = set_pci_reboot, ++ .ident = "Apple iMac10,1", ++ .matches = { ++ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), ++ DMI_MATCH(DMI_PRODUCT_NAME, "iMac10,1"), ++ }, ++ }, + + /* ASRock */ + { /* Handle problems with rebooting on ASRock Q1900DC-ITX */ +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/emulate.c linux-libre-4.4.7-gnu/arch/x86/kvm/emulate.c +--- linux-libre-4.4-gnu/arch/x86/kvm/emulate.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kvm/emulate.c 2016-04-12 12:09:26.000000000 -0400 +@@ -650,10 +650,10 @@ static __always_inline int __linearize(s + u16 sel; + + la = seg_base(ctxt, addr.seg) + addr.ea; +- *linear = la; + *max_size = 0; + switch (mode) { + case X86EMUL_MODE_PROT64: ++ *linear = la; + if (is_noncanonical_address(la)) + goto bad; + +@@ -662,6 +662,7 @@ static __always_inline int __linearize(s + goto bad; + break; + default: ++ *linear = la = (u32)la; + usable = ctxt->ops->get_segment(ctxt, &sel, &desc, NULL, + addr.seg); + if (!usable) +@@ -689,7 +690,6 @@ static __always_inline int __linearize(s + if (size > *max_size) + goto bad; + } +- la &= (u32)-1; + break; + } + if (insn_aligned(ctxt, size) && ((la & (size - 1)) != 0)) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/i8254.c linux-libre-4.4.7-gnu/arch/x86/kvm/i8254.c +--- linux-libre-4.4-gnu/arch/x86/kvm/i8254.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kvm/i8254.c 2016-04-12 12:09:26.000000000 -0400 +@@ -245,7 +245,7 @@ static void kvm_pit_ack_irq(struct kvm_i + * PIC is being reset. Handle it gracefully here + */ + atomic_inc(&ps->pending); +- else if (value > 0) ++ else if (value > 0 && ps->reinject) + /* in this case, we had multiple outstanding pit interrupts + * that we needed to inject. Reinject + */ +@@ -288,7 +288,9 @@ static void pit_do_work(struct kthread_w + * last one has been acked. + */ + spin_lock(&ps->inject_lock); +- if (ps->irq_ack) { ++ if (!ps->reinject) ++ inject = 1; ++ else if (ps->irq_ack) { + ps->irq_ack = 0; + inject = 1; + } +@@ -317,10 +319,10 @@ static enum hrtimer_restart pit_timer_fn + struct kvm_kpit_state *ps = container_of(data, struct kvm_kpit_state, timer); + struct kvm_pit *pt = ps->kvm->arch.vpit; + +- if (ps->reinject || !atomic_read(&ps->pending)) { ++ if (ps->reinject) + atomic_inc(&ps->pending); +- queue_kthread_work(&pt->worker, &pt->expired); +- } ++ ++ queue_kthread_work(&pt->worker, &pt->expired); + + if (ps->is_periodic) { + hrtimer_add_expires_ns(&ps->timer, ps->period); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/mmu.c linux-libre-4.4.7-gnu/arch/x86/kvm/mmu.c +--- linux-libre-4.4-gnu/arch/x86/kvm/mmu.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kvm/mmu.c 2016-04-12 12:09:26.000000000 -0400 +@@ -3754,13 +3754,15 @@ static void reset_rsvds_bits_mask_ept(st + void + reset_shadow_zero_bits_mask(struct kvm_vcpu *vcpu, struct kvm_mmu *context) + { ++ bool uses_nx = context->nx || context->base_role.smep_andnot_wp; ++ + /* + * Passing "true" to the last argument is okay; it adds a check + * on bit 8 of the SPTEs which KVM doesn't use anyway. + */ + __reset_rsvds_bits_mask(vcpu, &context->shadow_zero_check, + boot_cpu_data.x86_phys_bits, +- context->shadow_root_level, context->nx, ++ context->shadow_root_level, uses_nx, + guest_cpuid_has_gbpages(vcpu), is_pse(vcpu), + true); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/paging_tmpl.h linux-libre-4.4.7-gnu/arch/x86/kvm/paging_tmpl.h +--- linux-libre-4.4-gnu/arch/x86/kvm/paging_tmpl.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kvm/paging_tmpl.h 2016-04-12 12:09:26.000000000 -0400 +@@ -249,7 +249,7 @@ static int FNAME(update_accessed_dirty_b + return ret; + + kvm_vcpu_mark_page_dirty(vcpu, table_gfn); +- walker->ptes[level] = pte; ++ walker->ptes[level - 1] = pte; + } + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/trace.h linux-libre-4.4.7-gnu/arch/x86/kvm/trace.h +--- linux-libre-4.4-gnu/arch/x86/kvm/trace.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kvm/trace.h 2016-04-12 12:09:26.000000000 -0400 +@@ -268,7 +268,7 @@ TRACE_EVENT(kvm_inj_virq, + #define kvm_trace_sym_exc \ + EXS(DE), EXS(DB), EXS(BP), EXS(OF), EXS(BR), EXS(UD), EXS(NM), \ + EXS(DF), EXS(TS), EXS(NP), EXS(SS), EXS(GP), EXS(PF), \ +- EXS(MF), EXS(MC) ++ EXS(MF), EXS(AC), EXS(MC) + + /* + * Tracepoint for kvm interrupt injection: +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/vmx.c linux-libre-4.4.7-gnu/arch/x86/kvm/vmx.c +--- linux-libre-4.4-gnu/arch/x86/kvm/vmx.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kvm/vmx.c 2016-04-12 12:09:26.000000000 -0400 +@@ -595,6 +595,8 @@ struct vcpu_vmx { + /* Support for PML */ + #define PML_ENTITY_NUM 512 + struct page *pml_pg; ++ ++ u64 current_tsc_ratio; + }; + + enum segment_cache_field { +@@ -1746,6 +1748,13 @@ static void add_atomic_switch_msr(struct + return; + } + break; ++ case MSR_IA32_PEBS_ENABLE: ++ /* PEBS needs a quiescent period after being disabled (to write ++ * a record). Disabling PEBS through VMX MSR swapping doesn't ++ * provide that period, so a CPU could write host's record into ++ * guest's memory. ++ */ ++ wrmsrl(MSR_IA32_PEBS_ENABLE, 0); + } + + for (i = 0; i < m->nr; ++i) +@@ -1783,26 +1792,31 @@ static void reload_tss(void) + + static bool update_transition_efer(struct vcpu_vmx *vmx, int efer_offset) + { +- u64 guest_efer; +- u64 ignore_bits; ++ u64 guest_efer = vmx->vcpu.arch.efer; ++ u64 ignore_bits = 0; + +- guest_efer = vmx->vcpu.arch.efer; ++ if (!enable_ept) { ++ /* ++ * NX is needed to handle CR0.WP=1, CR4.SMEP=1. Testing ++ * host CPUID is more efficient than testing guest CPUID ++ * or CR4. Host SMEP is anyway a requirement for guest SMEP. ++ */ ++ if (boot_cpu_has(X86_FEATURE_SMEP)) ++ guest_efer |= EFER_NX; ++ else if (!(guest_efer & EFER_NX)) ++ ignore_bits |= EFER_NX; ++ } + + /* +- * NX is emulated; LMA and LME handled by hardware; SCE meaningless +- * outside long mode ++ * LMA and LME handled by hardware; SCE meaningless outside long mode. + */ +- ignore_bits = EFER_NX | EFER_SCE; ++ ignore_bits |= EFER_SCE; + #ifdef CONFIG_X86_64 + ignore_bits |= EFER_LMA | EFER_LME; + /* SCE is meaningful only in long mode on Intel */ + if (guest_efer & EFER_LMA) + ignore_bits &= ~(u64)EFER_SCE; + #endif +- guest_efer &= ~ignore_bits; +- guest_efer |= host_efer & ignore_bits; +- vmx->guest_msrs[efer_offset].data = guest_efer; +- vmx->guest_msrs[efer_offset].mask = ~ignore_bits; + + clear_atomic_switch_msr(vmx, MSR_EFER); + +@@ -1813,16 +1827,21 @@ static bool update_transition_efer(struc + */ + if (cpu_has_load_ia32_efer || + (enable_ept && ((vmx->vcpu.arch.efer ^ host_efer) & EFER_NX))) { +- guest_efer = vmx->vcpu.arch.efer; + if (!(guest_efer & EFER_LMA)) + guest_efer &= ~EFER_LME; + if (guest_efer != host_efer) + add_atomic_switch_msr(vmx, MSR_EFER, + guest_efer, host_efer); + return false; +- } ++ } else { ++ guest_efer &= ~ignore_bits; ++ guest_efer |= host_efer & ignore_bits; + +- return true; ++ vmx->guest_msrs[efer_offset].data = guest_efer; ++ vmx->guest_msrs[efer_offset].mask = ~ignore_bits; ++ ++ return true; ++ } + } + + static unsigned long segment_base(u16 selector) +@@ -2062,14 +2081,16 @@ static void vmx_vcpu_load(struct kvm_vcp + rdmsrl(MSR_IA32_SYSENTER_ESP, sysenter_esp); + vmcs_writel(HOST_IA32_SYSENTER_ESP, sysenter_esp); /* 22.2.3 */ + +- /* Setup TSC multiplier */ +- if (cpu_has_vmx_tsc_scaling()) +- vmcs_write64(TSC_MULTIPLIER, +- vcpu->arch.tsc_scaling_ratio); +- + vmx->loaded_vmcs->cpu = cpu; + } + ++ /* Setup TSC multiplier */ ++ if (kvm_has_tsc_control && ++ vmx->current_tsc_ratio != vcpu->arch.tsc_scaling_ratio) { ++ vmx->current_tsc_ratio = vcpu->arch.tsc_scaling_ratio; ++ vmcs_write64(TSC_MULTIPLIER, vmx->current_tsc_ratio); ++ } ++ + vmx_vcpu_pi_load(vcpu, cpu); + } + +@@ -2616,8 +2637,15 @@ static void nested_vmx_setup_ctls_msrs(s + } else + vmx->nested.nested_vmx_ept_caps = 0; + ++ /* ++ * Old versions of KVM use the single-context version without ++ * checking for support, so declare that it is supported even ++ * though it is treated as global context. The alternative is ++ * not failing the single-context invvpid, and it is worse. ++ */ + if (enable_vpid) + vmx->nested.nested_vmx_vpid_caps = VMX_VPID_INVVPID_BIT | ++ VMX_VPID_EXTENT_SINGLE_CONTEXT_BIT | + VMX_VPID_EXTENT_GLOBAL_CONTEXT_BIT; + else + vmx->nested.nested_vmx_vpid_caps = 0; +@@ -7319,6 +7347,7 @@ static int handle_invept(struct kvm_vcpu + if (!(types & (1UL << type))) { + nested_vmx_failValid(vcpu, + VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID); ++ skip_emulated_instruction(vcpu); + return 1; + } + +@@ -7377,6 +7406,7 @@ static int handle_invvpid(struct kvm_vcp + if (!(types & (1UL << type))) { + nested_vmx_failValid(vcpu, + VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID); ++ skip_emulated_instruction(vcpu); + return 1; + } + +@@ -7393,12 +7423,17 @@ static int handle_invvpid(struct kvm_vcp + } + + switch (type) { ++ case VMX_VPID_EXTENT_SINGLE_CONTEXT: ++ /* ++ * Old versions of KVM use the single-context version so we ++ * have to support it; just treat it the same as all-context. ++ */ + case VMX_VPID_EXTENT_ALL_CONTEXT: + __vmx_flush_tlb(vcpu, to_vmx(vcpu)->nested.vpid02); + nested_vmx_succeed(vcpu); + break; + default: +- /* Trap single context invalidation invvpid calls */ ++ /* Trap individual address invalidation invvpid calls */ + BUG_ON(1); + break; + } +@@ -8932,7 +8967,8 @@ static void vmx_cpuid_update(struct kvm_ + best->ebx &= ~bit(X86_FEATURE_INVPCID); + } + +- vmcs_set_secondary_exec_control(secondary_exec_ctl); ++ if (cpu_has_secondary_exec_ctrls()) ++ vmcs_set_secondary_exec_control(secondary_exec_ctl); + + if (static_cpu_has(X86_FEATURE_PCOMMIT) && nested) { + if (guest_cpuid_has_pcommit(vcpu)) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/x86.c linux-libre-4.4.7-gnu/arch/x86/kvm/x86.c +--- linux-libre-4.4-gnu/arch/x86/kvm/x86.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/kvm/x86.c 2016-04-12 12:09:26.000000000 -0400 +@@ -951,7 +951,7 @@ static u32 msrs_to_save[] = { + MSR_CSTAR, MSR_KERNEL_GS_BASE, MSR_SYSCALL_MASK, MSR_LSTAR, + #endif + MSR_IA32_TSC, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA, +- MSR_IA32_FEATURE_CONTROL, MSR_IA32_BNDCFGS ++ MSR_IA32_FEATURE_CONTROL, MSR_IA32_BNDCFGS, MSR_TSC_AUX, + }; + + static unsigned num_msrs_to_save; +@@ -2736,6 +2736,7 @@ void kvm_arch_vcpu_load(struct kvm_vcpu + } + + kvm_make_request(KVM_REQ_STEAL_UPDATE, vcpu); ++ vcpu->arch.switch_db_regs |= KVM_DEBUGREG_RELOAD; + } + + void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) +@@ -4006,16 +4007,17 @@ static void kvm_init_msr_list(void) + + /* + * Even MSRs that are valid in the host may not be exposed +- * to the guests in some cases. We could work around this +- * in VMX with the generic MSR save/load machinery, but it +- * is not really worthwhile since it will really only +- * happen with nested virtualization. ++ * to the guests in some cases. + */ + switch (msrs_to_save[i]) { + case MSR_IA32_BNDCFGS: + if (!kvm_x86_ops->mpx_supported()) + continue; + break; ++ case MSR_TSC_AUX: ++ if (!kvm_x86_ops->rdtscp_supported()) ++ continue; ++ break; + default: + break; + } +@@ -6543,12 +6545,12 @@ static int vcpu_enter_guest(struct kvm_v + * KVM_DEBUGREG_WONT_EXIT again. + */ + if (unlikely(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT)) { +- int i; +- + WARN_ON(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP); + kvm_x86_ops->sync_dirty_debug_regs(vcpu); +- for (i = 0; i < KVM_NR_DB_REGS; i++) +- vcpu->arch.eff_db[i] = vcpu->arch.db[i]; ++ kvm_update_dr0123(vcpu); ++ kvm_update_dr6(vcpu); ++ kvm_update_dr7(vcpu); ++ vcpu->arch.switch_db_regs &= ~KVM_DEBUGREG_RELOAD; + } + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/lib/copy_user_64.S linux-libre-4.4.7-gnu/arch/x86/lib/copy_user_64.S +--- linux-libre-4.4-gnu/arch/x86/lib/copy_user_64.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/lib/copy_user_64.S 2016-04-12 12:09:26.000000000 -0400 +@@ -232,17 +232,31 @@ ENDPROC(copy_user_enhanced_fast_string) + + /* + * copy_user_nocache - Uncached memory copy with exception handling +- * This will force destination/source out of cache for more performance. ++ * This will force destination out of cache for more performance. ++ * ++ * Note: Cached memory copy is used when destination or size is not ++ * naturally aligned. That is: ++ * - Require 8-byte alignment when size is 8 bytes or larger. ++ * - Require 4-byte alignment when size is 4 bytes. + */ + ENTRY(__copy_user_nocache) + ASM_STAC ++ ++ /* If size is less than 8 bytes, go to 4-byte copy */ + cmpl $8,%edx +- jb 20f /* less then 8 bytes, go to byte copy loop */ ++ jb .L_4b_nocache_copy_entry ++ ++ /* If destination is not 8-byte aligned, "cache" copy to align it */ + ALIGN_DESTINATION ++ ++ /* Set 4x8-byte copy count and remainder */ + movl %edx,%ecx + andl $63,%edx + shrl $6,%ecx +- jz 17f ++ jz .L_8b_nocache_copy_entry /* jump if count is 0 */ ++ ++ /* Perform 4x8-byte nocache loop-copy */ ++.L_4x8b_nocache_copy_loop: + 1: movq (%rsi),%r8 + 2: movq 1*8(%rsi),%r9 + 3: movq 2*8(%rsi),%r10 +@@ -262,60 +276,106 @@ ENTRY(__copy_user_nocache) + leaq 64(%rsi),%rsi + leaq 64(%rdi),%rdi + decl %ecx +- jnz 1b +-17: movl %edx,%ecx ++ jnz .L_4x8b_nocache_copy_loop ++ ++ /* Set 8-byte copy count and remainder */ ++.L_8b_nocache_copy_entry: ++ movl %edx,%ecx + andl $7,%edx + shrl $3,%ecx +- jz 20f +-18: movq (%rsi),%r8 +-19: movnti %r8,(%rdi) ++ jz .L_4b_nocache_copy_entry /* jump if count is 0 */ ++ ++ /* Perform 8-byte nocache loop-copy */ ++.L_8b_nocache_copy_loop: ++20: movq (%rsi),%r8 ++21: movnti %r8,(%rdi) + leaq 8(%rsi),%rsi + leaq 8(%rdi),%rdi + decl %ecx +- jnz 18b +-20: andl %edx,%edx +- jz 23f ++ jnz .L_8b_nocache_copy_loop ++ ++ /* If no byte left, we're done */ ++.L_4b_nocache_copy_entry: ++ andl %edx,%edx ++ jz .L_finish_copy ++ ++ /* If destination is not 4-byte aligned, go to byte copy: */ ++ movl %edi,%ecx ++ andl $3,%ecx ++ jnz .L_1b_cache_copy_entry ++ ++ /* Set 4-byte copy count (1 or 0) and remainder */ + movl %edx,%ecx +-21: movb (%rsi),%al +-22: movb %al,(%rdi) ++ andl $3,%edx ++ shrl $2,%ecx ++ jz .L_1b_cache_copy_entry /* jump if count is 0 */ ++ ++ /* Perform 4-byte nocache copy: */ ++30: movl (%rsi),%r8d ++31: movnti %r8d,(%rdi) ++ leaq 4(%rsi),%rsi ++ leaq 4(%rdi),%rdi ++ ++ /* If no bytes left, we're done: */ ++ andl %edx,%edx ++ jz .L_finish_copy ++ ++ /* Perform byte "cache" loop-copy for the remainder */ ++.L_1b_cache_copy_entry: ++ movl %edx,%ecx ++.L_1b_cache_copy_loop: ++40: movb (%rsi),%al ++41: movb %al,(%rdi) + incq %rsi + incq %rdi + decl %ecx +- jnz 21b +-23: xorl %eax,%eax ++ jnz .L_1b_cache_copy_loop ++ ++ /* Finished copying; fence the prior stores */ ++.L_finish_copy: ++ xorl %eax,%eax + ASM_CLAC + sfence + ret + + .section .fixup,"ax" +-30: shll $6,%ecx ++.L_fixup_4x8b_copy: ++ shll $6,%ecx + addl %ecx,%edx +- jmp 60f +-40: lea (%rdx,%rcx,8),%rdx +- jmp 60f +-50: movl %ecx,%edx +-60: sfence ++ jmp .L_fixup_handle_tail ++.L_fixup_8b_copy: ++ lea (%rdx,%rcx,8),%rdx ++ jmp .L_fixup_handle_tail ++.L_fixup_4b_copy: ++ lea (%rdx,%rcx,4),%rdx ++ jmp .L_fixup_handle_tail ++.L_fixup_1b_copy: ++ movl %ecx,%edx ++.L_fixup_handle_tail: ++ sfence + jmp copy_user_handle_tail + .previous + +- _ASM_EXTABLE(1b,30b) +- _ASM_EXTABLE(2b,30b) +- _ASM_EXTABLE(3b,30b) +- _ASM_EXTABLE(4b,30b) +- _ASM_EXTABLE(5b,30b) +- _ASM_EXTABLE(6b,30b) +- _ASM_EXTABLE(7b,30b) +- _ASM_EXTABLE(8b,30b) +- _ASM_EXTABLE(9b,30b) +- _ASM_EXTABLE(10b,30b) +- _ASM_EXTABLE(11b,30b) +- _ASM_EXTABLE(12b,30b) +- _ASM_EXTABLE(13b,30b) +- _ASM_EXTABLE(14b,30b) +- _ASM_EXTABLE(15b,30b) +- _ASM_EXTABLE(16b,30b) +- _ASM_EXTABLE(18b,40b) +- _ASM_EXTABLE(19b,40b) +- _ASM_EXTABLE(21b,50b) +- _ASM_EXTABLE(22b,50b) ++ _ASM_EXTABLE(1b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(2b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(3b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(4b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(5b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(6b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(7b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(8b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(9b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(10b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(11b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(12b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(13b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(14b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(15b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(16b,.L_fixup_4x8b_copy) ++ _ASM_EXTABLE(20b,.L_fixup_8b_copy) ++ _ASM_EXTABLE(21b,.L_fixup_8b_copy) ++ _ASM_EXTABLE(30b,.L_fixup_4b_copy) ++ _ASM_EXTABLE(31b,.L_fixup_4b_copy) ++ _ASM_EXTABLE(40b,.L_fixup_1b_copy) ++ _ASM_EXTABLE(41b,.L_fixup_1b_copy) + ENDPROC(__copy_user_nocache) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/fault.c linux-libre-4.4.7-gnu/arch/x86/mm/fault.c +--- linux-libre-4.4-gnu/arch/x86/mm/fault.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/mm/fault.c 2016-04-12 12:09:26.000000000 -0400 +@@ -287,6 +287,9 @@ static noinline int vmalloc_fault(unsign + if (!pmd_k) + return -1; + ++ if (pmd_huge(*pmd_k)) ++ return 0; ++ + pte_k = pte_offset_kernel(pmd_k, address); + if (!pte_present(*pte_k)) + return -1; +@@ -360,8 +363,6 @@ void vmalloc_sync_all(void) + * 64-bit: + * + * Handle a fault on the vmalloc area +- * +- * This assumes no large pages in there. + */ + static noinline int vmalloc_fault(unsigned long address) + { +@@ -403,17 +404,23 @@ static noinline int vmalloc_fault(unsign + if (pud_none(*pud_ref)) + return -1; + +- if (pud_none(*pud) || pud_page_vaddr(*pud) != pud_page_vaddr(*pud_ref)) ++ if (pud_none(*pud) || pud_pfn(*pud) != pud_pfn(*pud_ref)) + BUG(); + ++ if (pud_huge(*pud)) ++ return 0; ++ + pmd = pmd_offset(pud, address); + pmd_ref = pmd_offset(pud_ref, address); + if (pmd_none(*pmd_ref)) + return -1; + +- if (pmd_none(*pmd) || pmd_page(*pmd) != pmd_page(*pmd_ref)) ++ if (pmd_none(*pmd) || pmd_pfn(*pmd) != pmd_pfn(*pmd_ref)) + BUG(); + ++ if (pmd_huge(*pmd)) ++ return 0; ++ + pte_ref = pte_offset_kernel(pmd_ref, address); + if (!pte_present(*pte_ref)) + return -1; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/mpx.c linux-libre-4.4.7-gnu/arch/x86/mm/mpx.c +--- linux-libre-4.4-gnu/arch/x86/mm/mpx.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/mm/mpx.c 2016-04-12 12:09:26.000000000 -0400 +@@ -123,7 +123,7 @@ static int get_reg_offset(struct insn *i + break; + } + +- if (regno > nr_registers) { ++ if (regno >= nr_registers) { + WARN_ONCE(1, "decoded an instruction with an invalid register"); + return -EINVAL; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/pageattr.c linux-libre-4.4.7-gnu/arch/x86/mm/pageattr.c +--- linux-libre-4.4-gnu/arch/x86/mm/pageattr.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/mm/pageattr.c 2016-04-12 12:09:26.000000000 -0400 +@@ -33,7 +33,7 @@ struct cpa_data { + pgd_t *pgd; + pgprot_t mask_set; + pgprot_t mask_clr; +- int numpages; ++ unsigned long numpages; + int flags; + unsigned long pfn; + unsigned force_split : 1; +@@ -414,24 +414,30 @@ pmd_t *lookup_pmd_address(unsigned long + phys_addr_t slow_virt_to_phys(void *__virt_addr) + { + unsigned long virt_addr = (unsigned long)__virt_addr; +- unsigned long phys_addr, offset; ++ phys_addr_t phys_addr; ++ unsigned long offset; + enum pg_level level; + pte_t *pte; + + pte = lookup_address(virt_addr, &level); + BUG_ON(!pte); + ++ /* ++ * pXX_pfn() returns unsigned long, which must be cast to phys_addr_t ++ * before being left-shifted PAGE_SHIFT bits -- this trick is to ++ * make 32-PAE kernel work correctly. ++ */ + switch (level) { + case PG_LEVEL_1G: +- phys_addr = pud_pfn(*(pud_t *)pte) << PAGE_SHIFT; ++ phys_addr = (phys_addr_t)pud_pfn(*(pud_t *)pte) << PAGE_SHIFT; + offset = virt_addr & ~PUD_PAGE_MASK; + break; + case PG_LEVEL_2M: +- phys_addr = pmd_pfn(*(pmd_t *)pte) << PAGE_SHIFT; ++ phys_addr = (phys_addr_t)pmd_pfn(*(pmd_t *)pte) << PAGE_SHIFT; + offset = virt_addr & ~PMD_PAGE_MASK; + break; + default: +- phys_addr = pte_pfn(*pte) << PAGE_SHIFT; ++ phys_addr = (phys_addr_t)pte_pfn(*pte) << PAGE_SHIFT; + offset = virt_addr & ~PAGE_MASK; + } + +@@ -1345,7 +1351,7 @@ static int __change_page_attr_set_clr(st + * CPA operation. Either a large page has been + * preserved or a single page update happened. + */ +- BUG_ON(cpa->numpages > numpages); ++ BUG_ON(cpa->numpages > numpages || !cpa->numpages); + numpages -= cpa->numpages; + if (cpa->flags & (CPA_PAGES_ARRAY | CPA_ARRAY)) + cpa->curpage++; +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/tlb.c linux-libre-4.4.7-gnu/arch/x86/mm/tlb.c +--- linux-libre-4.4-gnu/arch/x86/mm/tlb.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/mm/tlb.c 2016-04-12 12:09:26.000000000 -0400 +@@ -106,8 +106,6 @@ static void flush_tlb_func(void *info) + + if (f->flush_mm != this_cpu_read(cpu_tlbstate.active_mm)) + return; +- if (!f->flush_end) +- f->flush_end = f->flush_start + PAGE_SIZE; + + count_vm_tlb_event(NR_TLB_REMOTE_FLUSH_RECEIVED); + if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK) { +@@ -135,12 +133,20 @@ void native_flush_tlb_others(const struc + unsigned long end) + { + struct flush_tlb_info info; ++ ++ if (end == 0) ++ end = start + PAGE_SIZE; + info.flush_mm = mm; + info.flush_start = start; + info.flush_end = end; + + count_vm_tlb_event(NR_TLB_REMOTE_FLUSH); +- trace_tlb_flush(TLB_REMOTE_SEND_IPI, end - start); ++ if (end == TLB_FLUSH_ALL) ++ trace_tlb_flush(TLB_REMOTE_SEND_IPI, TLB_FLUSH_ALL); ++ else ++ trace_tlb_flush(TLB_REMOTE_SEND_IPI, ++ (end - start) >> PAGE_SHIFT); ++ + if (is_uv_system()) { + unsigned int cpu; + +@@ -161,7 +167,10 @@ void flush_tlb_current_task(void) + preempt_disable(); + + count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL); ++ ++ /* This is an implicit full barrier that synchronizes with switch_mm. */ + local_flush_tlb(); ++ + trace_tlb_flush(TLB_LOCAL_SHOOTDOWN, TLB_FLUSH_ALL); + if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids) + flush_tlb_others(mm_cpumask(mm), mm, 0UL, TLB_FLUSH_ALL); +@@ -188,17 +197,29 @@ void flush_tlb_mm_range(struct mm_struct + unsigned long base_pages_to_flush = TLB_FLUSH_ALL; + + preempt_disable(); +- if (current->active_mm != mm) ++ if (current->active_mm != mm) { ++ /* Synchronize with switch_mm. */ ++ smp_mb(); ++ + goto out; ++ } + + if (!current->mm) { + leave_mm(smp_processor_id()); ++ ++ /* Synchronize with switch_mm. */ ++ smp_mb(); ++ + goto out; + } + + if ((end != TLB_FLUSH_ALL) && !(vmflag & VM_HUGETLB)) + base_pages_to_flush = (end - start) >> PAGE_SHIFT; + ++ /* ++ * Both branches below are implicit full barriers (MOV to CR or ++ * INVLPG) that synchronize with switch_mm. ++ */ + if (base_pages_to_flush > tlb_single_page_flush_ceiling) { + base_pages_to_flush = TLB_FLUSH_ALL; + count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL); +@@ -228,10 +249,18 @@ void flush_tlb_page(struct vm_area_struc + preempt_disable(); + + if (current->active_mm == mm) { +- if (current->mm) ++ if (current->mm) { ++ /* ++ * Implicit full barrier (INVLPG) that synchronizes ++ * with switch_mm. ++ */ + __flush_tlb_one(start); +- else ++ } else { + leave_mm(smp_processor_id()); ++ ++ /* Synchronize with switch_mm. */ ++ smp_mb(); ++ } + } + + if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids) +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/pci/fixup.c linux-libre-4.4.7-gnu/arch/x86/pci/fixup.c +--- linux-libre-4.4-gnu/arch/x86/pci/fixup.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/pci/fixup.c 2016-04-12 12:09:26.000000000 -0400 +@@ -540,3 +540,10 @@ static void twinhead_reserve_killing_zon + } + } + DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x27B9, twinhead_reserve_killing_zone); ++ ++static void pci_bdwep_bar(struct pci_dev *dev) ++{ ++ dev->non_compliant_bars = 1; ++} ++DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fa0, pci_bdwep_bar); ++DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fc0, pci_bdwep_bar); +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/xen/enlighten.c linux-libre-4.4.7-gnu/arch/x86/xen/enlighten.c +--- linux-libre-4.4-gnu/arch/x86/xen/enlighten.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/xen/enlighten.c 2016-04-12 12:09:26.000000000 -0400 +@@ -961,7 +961,7 @@ static void xen_load_sp0(struct tss_stru + tss->x86_tss.sp0 = thread->sp0; + } + +-static void xen_set_iopl_mask(unsigned mask) ++void xen_set_iopl_mask(unsigned mask) + { + struct physdev_set_iopl set_iopl; + +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/xen/suspend.c linux-libre-4.4.7-gnu/arch/x86/xen/suspend.c +--- linux-libre-4.4-gnu/arch/x86/xen/suspend.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/x86/xen/suspend.c 2016-04-12 12:09:26.000000000 -0400 +@@ -34,7 +34,8 @@ static void xen_hvm_post_suspend(int sus + { + #ifdef CONFIG_XEN_PVHVM + int cpu; +- xen_hvm_init_shared_info(); ++ if (!suspend_cancelled) ++ xen_hvm_init_shared_info(); + xen_callback_vector(); + xen_unplug_emulated_devices(); + if (xen_feature(XENFEAT_hvm_safe_pvclock)) { +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/xtensa/kernel/head.S linux-libre-4.4.7-gnu/arch/xtensa/kernel/head.S +--- linux-libre-4.4-gnu/arch/xtensa/kernel/head.S 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/xtensa/kernel/head.S 2016-04-12 12:09:26.000000000 -0400 +@@ -128,7 +128,7 @@ ENTRY(_startup) + wsr a0, icountlevel + + .set _index, 0 +- .rept XCHAL_NUM_DBREAK - 1 ++ .rept XCHAL_NUM_DBREAK + wsr a0, SREG_DBREAKC + _index + .set _index, _index + 1 + .endr +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/xtensa/mm/cache.c linux-libre-4.4.7-gnu/arch/xtensa/mm/cache.c +--- linux-libre-4.4-gnu/arch/xtensa/mm/cache.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/xtensa/mm/cache.c 2016-04-12 12:09:26.000000000 -0400 +@@ -97,11 +97,11 @@ void clear_user_highpage(struct page *pa + unsigned long paddr; + void *kvaddr = coherent_kvaddr(page, TLBTEMP_BASE_1, vaddr, &paddr); + +- pagefault_disable(); ++ preempt_disable(); + kmap_invalidate_coherent(page, vaddr); + set_bit(PG_arch_1, &page->flags); + clear_page_alias(kvaddr, paddr); +- pagefault_enable(); ++ preempt_enable(); + } + + void copy_user_highpage(struct page *dst, struct page *src, +@@ -113,11 +113,11 @@ void copy_user_highpage(struct page *dst + void *src_vaddr = coherent_kvaddr(src, TLBTEMP_BASE_2, vaddr, + &src_paddr); + +- pagefault_disable(); ++ preempt_disable(); + kmap_invalidate_coherent(dst, vaddr); + set_bit(PG_arch_1, &dst->flags); + copy_page_alias(dst_vaddr, src_vaddr, dst_paddr, src_paddr); +- pagefault_enable(); ++ preempt_enable(); + } + + #endif /* DCACHE_WAY_SIZE > PAGE_SIZE */ +diff -druNp --no-dereference linux-libre-4.4-gnu/arch/xtensa/platforms/iss/console.c linux-libre-4.4.7-gnu/arch/xtensa/platforms/iss/console.c +--- linux-libre-4.4-gnu/arch/xtensa/platforms/iss/console.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/arch/xtensa/platforms/iss/console.c 2016-04-12 12:09:26.000000000 -0400 +@@ -100,21 +100,23 @@ static void rs_poll(unsigned long priv) + { + struct tty_port *port = (struct tty_port *)priv; + int i = 0; ++ int rd = 1; + unsigned char c; + + spin_lock(&timer_lock); + + while (simc_poll(0)) { +- simc_read(0, &c, 1); ++ rd = simc_read(0, &c, 1); ++ if (rd <= 0) ++ break; + tty_insert_flip_char(port, c, TTY_NORMAL); + i++; + } + + if (i) + tty_flip_buffer_push(port); +- +- +- mod_timer(&serial_timer, jiffies + SERIAL_TIMER_VALUE); ++ if (rd) ++ mod_timer(&serial_timer, jiffies + SERIAL_TIMER_VALUE); + spin_unlock(&timer_lock); + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/block/bio.c linux-libre-4.4.7-gnu/block/bio.c +--- linux-libre-4.4-gnu/block/bio.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/block/bio.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1090,9 +1090,12 @@ int bio_uncopy_user(struct bio *bio) + if (!bio_flagged(bio, BIO_NULL_MAPPED)) { + /* + * if we're in a workqueue, the request is orphaned, so +- * don't copy into a random user address space, just free. ++ * don't copy into a random user address space, just free ++ * and return -EINTR so user space doesn't expect any data. + */ +- if (current->mm && bio_data_dir(bio) == READ) ++ if (!current->mm) ++ ret = -EINTR; ++ else if (bio_data_dir(bio) == READ) + ret = bio_copy_to_iter(bio, bmd->iter); + if (bmd->is_our_pages) + bio_free_pages(bio); +diff -druNp --no-dereference linux-libre-4.4-gnu/block/blk-core.c linux-libre-4.4.7-gnu/block/blk-core.c +--- linux-libre-4.4-gnu/block/blk-core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/block/blk-core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2189,7 +2189,7 @@ int blk_insert_cloned_request(struct req + if (q->mq_ops) { + if (blk_queue_io_stat(q)) + blk_account_io_start(rq, true); +- blk_mq_insert_request(rq, false, true, true); ++ blk_mq_insert_request(rq, false, true, false); + return 0; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/block/blk-merge.c linux-libre-4.4.7-gnu/block/blk-merge.c +--- linux-libre-4.4-gnu/block/blk-merge.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/block/blk-merge.c 2016-04-12 12:09:26.000000000 -0400 +@@ -68,6 +68,18 @@ static struct bio *blk_bio_write_same_sp + return bio_split(bio, q->limits.max_write_same_sectors, GFP_NOIO, bs); + } + ++static inline unsigned get_max_io_size(struct request_queue *q, ++ struct bio *bio) ++{ ++ unsigned sectors = blk_max_size_offset(q, bio->bi_iter.bi_sector); ++ unsigned mask = queue_logical_block_size(q) - 1; ++ ++ /* aligned to logical block size */ ++ sectors &= ~(mask >> 9); ++ ++ return sectors; ++} ++ + static struct bio *blk_bio_segment_split(struct request_queue *q, + struct bio *bio, + struct bio_set *bs, +@@ -79,11 +91,9 @@ static struct bio *blk_bio_segment_split + unsigned front_seg_size = bio->bi_seg_front_size; + bool do_split = true; + struct bio *new = NULL; ++ const unsigned max_sectors = get_max_io_size(q, bio); + + bio_for_each_segment(bv, bio, iter) { +- if (sectors + (bv.bv_len >> 9) > queue_max_sectors(q)) +- goto split; +- + /* + * If the queue doesn't support SG gaps and adding this + * offset would create a gap, disallow it. +@@ -91,6 +101,21 @@ static struct bio *blk_bio_segment_split + if (bvprvp && bvec_gap_to_prev(q, bvprvp, bv.bv_offset)) + goto split; + ++ if (sectors + (bv.bv_len >> 9) > max_sectors) { ++ /* ++ * Consider this a new segment if we're splitting in ++ * the middle of this vector. ++ */ ++ if (nsegs < queue_max_segments(q) && ++ sectors < max_sectors) { ++ nsegs++; ++ sectors = max_sectors; ++ } ++ if (sectors) ++ goto split; ++ /* Make this single bvec as the 1st segment */ ++ } ++ + if (bvprvp && blk_queue_cluster(q)) { + if (seg_size + bv.bv_len > queue_max_segment_size(q)) + goto new_segment; +diff -druNp --no-dereference linux-libre-4.4-gnu/block/blk-settings.c linux-libre-4.4.7-gnu/block/blk-settings.c +--- linux-libre-4.4-gnu/block/blk-settings.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/block/blk-settings.c 2016-04-12 12:09:26.000000000 -0400 +@@ -91,8 +91,8 @@ void blk_set_default_limits(struct queue + lim->seg_boundary_mask = BLK_SEG_BOUNDARY_MASK; + lim->virt_boundary_mask = 0; + lim->max_segment_size = BLK_MAX_SEGMENT_SIZE; +- lim->max_sectors = lim->max_dev_sectors = lim->max_hw_sectors = +- BLK_SAFE_MAX_SECTORS; ++ lim->max_sectors = lim->max_hw_sectors = BLK_SAFE_MAX_SECTORS; ++ lim->max_dev_sectors = 0; + lim->chunk_sectors = 0; + lim->max_write_same_sectors = 0; + lim->max_discard_sectors = 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/af_alg.c linux-libre-4.4.7-gnu/crypto/af_alg.c +--- linux-libre-4.4-gnu/crypto/af_alg.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/crypto/af_alg.c 2016-04-12 12:09:26.000000000 -0400 +@@ -76,6 +76,8 @@ int af_alg_register_type(const struct af + goto unlock; + + type->ops->owner = THIS_MODULE; ++ if (type->ops_nokey) ++ type->ops_nokey->owner = THIS_MODULE; + node->type = type; + list_add(&node->list, &alg_types); + err = 0; +@@ -125,6 +127,26 @@ int af_alg_release(struct socket *sock) + } + EXPORT_SYMBOL_GPL(af_alg_release); + ++void af_alg_release_parent(struct sock *sk) ++{ ++ struct alg_sock *ask = alg_sk(sk); ++ unsigned int nokey = ask->nokey_refcnt; ++ bool last = nokey && !ask->refcnt; ++ ++ sk = ask->parent; ++ ask = alg_sk(sk); ++ ++ lock_sock(sk); ++ ask->nokey_refcnt -= nokey; ++ if (!last) ++ last = !--ask->refcnt; ++ release_sock(sk); ++ ++ if (last) ++ sock_put(sk); ++} ++EXPORT_SYMBOL_GPL(af_alg_release_parent); ++ + static int alg_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) + { + const u32 forbidden = CRYPTO_ALG_INTERNAL; +@@ -133,6 +155,7 @@ static int alg_bind(struct socket *sock, + struct sockaddr_alg *sa = (void *)uaddr; + const struct af_alg_type *type; + void *private; ++ int err; + + if (sock->state == SS_CONNECTED) + return -EINVAL; +@@ -160,16 +183,22 @@ static int alg_bind(struct socket *sock, + return PTR_ERR(private); + } + ++ err = -EBUSY; + lock_sock(sk); ++ if (ask->refcnt | ask->nokey_refcnt) ++ goto unlock; + + swap(ask->type, type); + swap(ask->private, private); + ++ err = 0; ++ ++unlock: + release_sock(sk); + + alg_do_release(type, private); + +- return 0; ++ return err; + } + + static int alg_setkey(struct sock *sk, char __user *ukey, +@@ -202,11 +231,15 @@ static int alg_setsockopt(struct socket + struct sock *sk = sock->sk; + struct alg_sock *ask = alg_sk(sk); + const struct af_alg_type *type; +- int err = -ENOPROTOOPT; ++ int err = -EBUSY; + + lock_sock(sk); ++ if (ask->refcnt) ++ goto unlock; ++ + type = ask->type; + ++ err = -ENOPROTOOPT; + if (level != SOL_ALG || !type) + goto unlock; + +@@ -238,6 +271,7 @@ int af_alg_accept(struct sock *sk, struc + struct alg_sock *ask = alg_sk(sk); + const struct af_alg_type *type; + struct sock *sk2; ++ unsigned int nokey; + int err; + + lock_sock(sk); +@@ -257,20 +291,29 @@ int af_alg_accept(struct sock *sk, struc + security_sk_clone(sk, sk2); + + err = type->accept(ask->private, sk2); +- if (err) { +- sk_free(sk2); ++ ++ nokey = err == -ENOKEY; ++ if (nokey && type->accept_nokey) ++ err = type->accept_nokey(ask->private, sk2); ++ ++ if (err) + goto unlock; +- } + + sk2->sk_family = PF_ALG; + +- sock_hold(sk); ++ if (nokey || !ask->refcnt++) ++ sock_hold(sk); ++ ask->nokey_refcnt += nokey; + alg_sk(sk2)->parent = sk; + alg_sk(sk2)->type = type; ++ alg_sk(sk2)->nokey_refcnt = nokey; + + newsock->ops = type->ops; + newsock->state = SS_CONNECTED; + ++ if (nokey) ++ newsock->ops = type->ops_nokey; ++ + err = 0; + + unlock: +diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/ahash.c linux-libre-4.4.7-gnu/crypto/ahash.c +--- linux-libre-4.4-gnu/crypto/ahash.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/crypto/ahash.c 2016-04-12 12:09:26.000000000 -0400 +@@ -451,6 +451,7 @@ static int crypto_ahash_init_tfm(struct + struct ahash_alg *alg = crypto_ahash_alg(hash); + + hash->setkey = ahash_nosetkey; ++ hash->has_setkey = false; + hash->export = ahash_no_export; + hash->import = ahash_no_import; + +@@ -463,8 +464,10 @@ static int crypto_ahash_init_tfm(struct + hash->finup = alg->finup ?: ahash_def_finup; + hash->digest = alg->digest; + +- if (alg->setkey) ++ if (alg->setkey) { + hash->setkey = alg->setkey; ++ hash->has_setkey = true; ++ } + if (alg->export) + hash->export = alg->export; + if (alg->import) +diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/algif_hash.c linux-libre-4.4.7-gnu/crypto/algif_hash.c +--- linux-libre-4.4-gnu/crypto/algif_hash.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/crypto/algif_hash.c 2016-04-12 12:09:26.000000000 -0400 +@@ -34,6 +34,11 @@ struct hash_ctx { + struct ahash_request req; + }; + ++struct algif_hash_tfm { ++ struct crypto_ahash *hash; ++ bool has_key; ++}; ++ + static int hash_sendmsg(struct socket *sock, struct msghdr *msg, + size_t ignored) + { +@@ -49,7 +54,8 @@ static int hash_sendmsg(struct socket *s + + lock_sock(sk); + if (!ctx->more) { +- err = crypto_ahash_init(&ctx->req); ++ err = af_alg_wait_for_completion(crypto_ahash_init(&ctx->req), ++ &ctx->completion); + if (err) + goto unlock; + } +@@ -120,6 +126,7 @@ static ssize_t hash_sendpage(struct sock + } else { + if (!ctx->more) { + err = crypto_ahash_init(&ctx->req); ++ err = af_alg_wait_for_completion(err, &ctx->completion); + if (err) + goto unlock; + } +@@ -235,19 +242,151 @@ static struct proto_ops algif_hash_ops = + .accept = hash_accept, + }; + ++static int hash_check_key(struct socket *sock) ++{ ++ int err = 0; ++ struct sock *psk; ++ struct alg_sock *pask; ++ struct algif_hash_tfm *tfm; ++ struct sock *sk = sock->sk; ++ struct alg_sock *ask = alg_sk(sk); ++ ++ lock_sock(sk); ++ if (ask->refcnt) ++ goto unlock_child; ++ ++ psk = ask->parent; ++ pask = alg_sk(ask->parent); ++ tfm = pask->private; ++ ++ err = -ENOKEY; ++ lock_sock_nested(psk, SINGLE_DEPTH_NESTING); ++ if (!tfm->has_key) ++ goto unlock; ++ ++ if (!pask->refcnt++) ++ sock_hold(psk); ++ ++ ask->refcnt = 1; ++ sock_put(psk); ++ ++ err = 0; ++ ++unlock: ++ release_sock(psk); ++unlock_child: ++ release_sock(sk); ++ ++ return err; ++} ++ ++static int hash_sendmsg_nokey(struct socket *sock, struct msghdr *msg, ++ size_t size) ++{ ++ int err; ++ ++ err = hash_check_key(sock); ++ if (err) ++ return err; ++ ++ return hash_sendmsg(sock, msg, size); ++} ++ ++static ssize_t hash_sendpage_nokey(struct socket *sock, struct page *page, ++ int offset, size_t size, int flags) ++{ ++ int err; ++ ++ err = hash_check_key(sock); ++ if (err) ++ return err; ++ ++ return hash_sendpage(sock, page, offset, size, flags); ++} ++ ++static int hash_recvmsg_nokey(struct socket *sock, struct msghdr *msg, ++ size_t ignored, int flags) ++{ ++ int err; ++ ++ err = hash_check_key(sock); ++ if (err) ++ return err; ++ ++ return hash_recvmsg(sock, msg, ignored, flags); ++} ++ ++static int hash_accept_nokey(struct socket *sock, struct socket *newsock, ++ int flags) ++{ ++ int err; ++ ++ err = hash_check_key(sock); ++ if (err) ++ return err; ++ ++ return hash_accept(sock, newsock, flags); ++} ++ ++static struct proto_ops algif_hash_ops_nokey = { ++ .family = PF_ALG, ++ ++ .connect = sock_no_connect, ++ .socketpair = sock_no_socketpair, ++ .getname = sock_no_getname, ++ .ioctl = sock_no_ioctl, ++ .listen = sock_no_listen, ++ .shutdown = sock_no_shutdown, ++ .getsockopt = sock_no_getsockopt, ++ .mmap = sock_no_mmap, ++ .bind = sock_no_bind, ++ .setsockopt = sock_no_setsockopt, ++ .poll = sock_no_poll, ++ ++ .release = af_alg_release, ++ .sendmsg = hash_sendmsg_nokey, ++ .sendpage = hash_sendpage_nokey, ++ .recvmsg = hash_recvmsg_nokey, ++ .accept = hash_accept_nokey, ++}; ++ + static void *hash_bind(const char *name, u32 type, u32 mask) + { +- return crypto_alloc_ahash(name, type, mask); ++ struct algif_hash_tfm *tfm; ++ struct crypto_ahash *hash; ++ ++ tfm = kzalloc(sizeof(*tfm), GFP_KERNEL); ++ if (!tfm) ++ return ERR_PTR(-ENOMEM); ++ ++ hash = crypto_alloc_ahash(name, type, mask); ++ if (IS_ERR(hash)) { ++ kfree(tfm); ++ return ERR_CAST(hash); ++ } ++ ++ tfm->hash = hash; ++ ++ return tfm; + } + + static void hash_release(void *private) + { +- crypto_free_ahash(private); ++ struct algif_hash_tfm *tfm = private; ++ ++ crypto_free_ahash(tfm->hash); ++ kfree(tfm); + } + + static int hash_setkey(void *private, const u8 *key, unsigned int keylen) + { +- return crypto_ahash_setkey(private, key, keylen); ++ struct algif_hash_tfm *tfm = private; ++ int err; ++ ++ err = crypto_ahash_setkey(tfm->hash, key, keylen); ++ tfm->has_key = !err; ++ ++ return err; + } + + static void hash_sock_destruct(struct sock *sk) +@@ -261,12 +400,14 @@ static void hash_sock_destruct(struct so + af_alg_release_parent(sk); + } + +-static int hash_accept_parent(void *private, struct sock *sk) ++static int hash_accept_parent_nokey(void *private, struct sock *sk) + { + struct hash_ctx *ctx; + struct alg_sock *ask = alg_sk(sk); +- unsigned len = sizeof(*ctx) + crypto_ahash_reqsize(private); +- unsigned ds = crypto_ahash_digestsize(private); ++ struct algif_hash_tfm *tfm = private; ++ struct crypto_ahash *hash = tfm->hash; ++ unsigned len = sizeof(*ctx) + crypto_ahash_reqsize(hash); ++ unsigned ds = crypto_ahash_digestsize(hash); + + ctx = sock_kmalloc(sk, len, GFP_KERNEL); + if (!ctx) +@@ -286,7 +427,7 @@ static int hash_accept_parent(void *priv + + ask->private = ctx; + +- ahash_request_set_tfm(&ctx->req, private); ++ ahash_request_set_tfm(&ctx->req, hash); + ahash_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_BACKLOG, + af_alg_complete, &ctx->completion); + +@@ -295,12 +436,24 @@ static int hash_accept_parent(void *priv + return 0; + } + ++static int hash_accept_parent(void *private, struct sock *sk) ++{ ++ struct algif_hash_tfm *tfm = private; ++ ++ if (!tfm->has_key && crypto_ahash_has_setkey(tfm->hash)) ++ return -ENOKEY; ++ ++ return hash_accept_parent_nokey(private, sk); ++} ++ + static const struct af_alg_type algif_type_hash = { + .bind = hash_bind, + .release = hash_release, + .setkey = hash_setkey, + .accept = hash_accept_parent, ++ .accept_nokey = hash_accept_parent_nokey, + .ops = &algif_hash_ops, ++ .ops_nokey = &algif_hash_ops_nokey, + .name = "hash", + .owner = THIS_MODULE + }; +diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/algif_skcipher.c linux-libre-4.4.7-gnu/crypto/algif_skcipher.c +--- linux-libre-4.4-gnu/crypto/algif_skcipher.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/crypto/algif_skcipher.c 2016-04-12 12:09:26.000000000 -0400 +@@ -31,6 +31,11 @@ struct skcipher_sg_list { + struct scatterlist sg[0]; + }; + ++struct skcipher_tfm { ++ struct crypto_skcipher *skcipher; ++ bool has_key; ++}; ++ + struct skcipher_ctx { + struct list_head tsgl; + struct af_alg_sgl rsgl; +@@ -60,18 +65,10 @@ struct skcipher_async_req { + struct skcipher_async_rsgl first_sgl; + struct list_head list; + struct scatterlist *tsg; +- char iv[]; ++ atomic_t *inflight; ++ struct skcipher_request req; + }; + +-#define GET_SREQ(areq, ctx) (struct skcipher_async_req *)((char *)areq + \ +- crypto_skcipher_reqsize(crypto_skcipher_reqtfm(&ctx->req))) +- +-#define GET_REQ_SIZE(ctx) \ +- crypto_skcipher_reqsize(crypto_skcipher_reqtfm(&ctx->req)) +- +-#define GET_IV_SIZE(ctx) \ +- crypto_skcipher_ivsize(crypto_skcipher_reqtfm(&ctx->req)) +- + #define MAX_SGL_ENTS ((4096 - sizeof(struct skcipher_sg_list)) / \ + sizeof(struct scatterlist) - 1) + +@@ -97,15 +94,12 @@ static void skcipher_free_async_sgls(str + + static void skcipher_async_cb(struct crypto_async_request *req, int err) + { +- struct sock *sk = req->data; +- struct alg_sock *ask = alg_sk(sk); +- struct skcipher_ctx *ctx = ask->private; +- struct skcipher_async_req *sreq = GET_SREQ(req, ctx); ++ struct skcipher_async_req *sreq = req->data; + struct kiocb *iocb = sreq->iocb; + +- atomic_dec(&ctx->inflight); ++ atomic_dec(sreq->inflight); + skcipher_free_async_sgls(sreq); +- kfree(req); ++ kzfree(sreq); + iocb->ki_complete(iocb, err, err); + } + +@@ -301,8 +295,11 @@ static int skcipher_sendmsg(struct socke + { + struct sock *sk = sock->sk; + struct alg_sock *ask = alg_sk(sk); ++ struct sock *psk = ask->parent; ++ struct alg_sock *pask = alg_sk(psk); + struct skcipher_ctx *ctx = ask->private; +- struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(&ctx->req); ++ struct skcipher_tfm *skc = pask->private; ++ struct crypto_skcipher *tfm = skc->skcipher; + unsigned ivsize = crypto_skcipher_ivsize(tfm); + struct skcipher_sg_list *sgl; + struct af_alg_control con = {}; +@@ -387,7 +384,8 @@ static int skcipher_sendmsg(struct socke + + sgl = list_entry(ctx->tsgl.prev, struct skcipher_sg_list, list); + sg = sgl->sg; +- sg_unmark_end(sg + sgl->cur); ++ if (sgl->cur) ++ sg_unmark_end(sg + sgl->cur - 1); + do { + i = sgl->cur; + plen = min_t(int, len, PAGE_SIZE); +@@ -503,37 +501,43 @@ static int skcipher_recvmsg_async(struct + { + struct sock *sk = sock->sk; + struct alg_sock *ask = alg_sk(sk); ++ struct sock *psk = ask->parent; ++ struct alg_sock *pask = alg_sk(psk); + struct skcipher_ctx *ctx = ask->private; ++ struct skcipher_tfm *skc = pask->private; ++ struct crypto_skcipher *tfm = skc->skcipher; + struct skcipher_sg_list *sgl; + struct scatterlist *sg; + struct skcipher_async_req *sreq; + struct skcipher_request *req; + struct skcipher_async_rsgl *last_rsgl = NULL; +- unsigned int txbufs = 0, len = 0, tx_nents = skcipher_all_sg_nents(ctx); +- unsigned int reqlen = sizeof(struct skcipher_async_req) + +- GET_REQ_SIZE(ctx) + GET_IV_SIZE(ctx); ++ unsigned int txbufs = 0, len = 0, tx_nents; ++ unsigned int reqsize = crypto_skcipher_reqsize(tfm); ++ unsigned int ivsize = crypto_skcipher_ivsize(tfm); + int err = -ENOMEM; + bool mark = false; ++ char *iv; + +- lock_sock(sk); +- req = kmalloc(reqlen, GFP_KERNEL); +- if (unlikely(!req)) +- goto unlock; ++ sreq = kzalloc(sizeof(*sreq) + reqsize + ivsize, GFP_KERNEL); ++ if (unlikely(!sreq)) ++ goto out; + +- sreq = GET_SREQ(req, ctx); ++ req = &sreq->req; ++ iv = (char *)(req + 1) + reqsize; + sreq->iocb = msg->msg_iocb; +- memset(&sreq->first_sgl, '\0', sizeof(struct skcipher_async_rsgl)); + INIT_LIST_HEAD(&sreq->list); ++ sreq->inflight = &ctx->inflight; ++ ++ lock_sock(sk); ++ tx_nents = skcipher_all_sg_nents(ctx); + sreq->tsg = kcalloc(tx_nents, sizeof(*sg), GFP_KERNEL); +- if (unlikely(!sreq->tsg)) { +- kfree(req); ++ if (unlikely(!sreq->tsg)) + goto unlock; +- } + sg_init_table(sreq->tsg, tx_nents); +- memcpy(sreq->iv, ctx->iv, GET_IV_SIZE(ctx)); +- skcipher_request_set_tfm(req, crypto_skcipher_reqtfm(&ctx->req)); +- skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, +- skcipher_async_cb, sk); ++ memcpy(iv, ctx->iv, ivsize); ++ skcipher_request_set_tfm(req, tfm); ++ skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP, ++ skcipher_async_cb, sreq); + + while (iov_iter_count(&msg->msg_iter)) { + struct skcipher_async_rsgl *rsgl; +@@ -609,20 +613,22 @@ static int skcipher_recvmsg_async(struct + sg_mark_end(sreq->tsg + txbufs - 1); + + skcipher_request_set_crypt(req, sreq->tsg, sreq->first_sgl.sgl.sg, +- len, sreq->iv); ++ len, iv); + err = ctx->enc ? crypto_skcipher_encrypt(req) : + crypto_skcipher_decrypt(req); + if (err == -EINPROGRESS) { + atomic_inc(&ctx->inflight); + err = -EIOCBQUEUED; ++ sreq = NULL; + goto unlock; + } + free: + skcipher_free_async_sgls(sreq); +- kfree(req); + unlock: + skcipher_wmem_wakeup(sk); + release_sock(sk); ++ kzfree(sreq); ++out: + return err; + } + +@@ -631,9 +637,12 @@ static int skcipher_recvmsg_sync(struct + { + struct sock *sk = sock->sk; + struct alg_sock *ask = alg_sk(sk); ++ struct sock *psk = ask->parent; ++ struct alg_sock *pask = alg_sk(psk); + struct skcipher_ctx *ctx = ask->private; +- unsigned bs = crypto_skcipher_blocksize(crypto_skcipher_reqtfm( +- &ctx->req)); ++ struct skcipher_tfm *skc = pask->private; ++ struct crypto_skcipher *tfm = skc->skcipher; ++ unsigned bs = crypto_skcipher_blocksize(tfm); + struct skcipher_sg_list *sgl; + struct scatterlist *sg; + int err = -EAGAIN; +@@ -642,13 +651,6 @@ static int skcipher_recvmsg_sync(struct + + lock_sock(sk); + while (msg_data_left(msg)) { +- sgl = list_first_entry(&ctx->tsgl, +- struct skcipher_sg_list, list); +- sg = sgl->sg; +- +- while (!sg->length) +- sg++; +- + if (!ctx->used) { + err = skcipher_wait_for_data(sk, flags); + if (err) +@@ -669,6 +671,13 @@ static int skcipher_recvmsg_sync(struct + if (!used) + goto free; + ++ sgl = list_first_entry(&ctx->tsgl, ++ struct skcipher_sg_list, list); ++ sg = sgl->sg; ++ ++ while (!sg->length) ++ sg++; ++ + skcipher_request_set_crypt(&ctx->req, sg, ctx->rsgl.sg, used, + ctx->iv); + +@@ -748,19 +757,139 @@ static struct proto_ops algif_skcipher_o + .poll = skcipher_poll, + }; + ++static int skcipher_check_key(struct socket *sock) ++{ ++ int err = 0; ++ struct sock *psk; ++ struct alg_sock *pask; ++ struct skcipher_tfm *tfm; ++ struct sock *sk = sock->sk; ++ struct alg_sock *ask = alg_sk(sk); ++ ++ lock_sock(sk); ++ if (ask->refcnt) ++ goto unlock_child; ++ ++ psk = ask->parent; ++ pask = alg_sk(ask->parent); ++ tfm = pask->private; ++ ++ err = -ENOKEY; ++ lock_sock_nested(psk, SINGLE_DEPTH_NESTING); ++ if (!tfm->has_key) ++ goto unlock; ++ ++ if (!pask->refcnt++) ++ sock_hold(psk); ++ ++ ask->refcnt = 1; ++ sock_put(psk); ++ ++ err = 0; ++ ++unlock: ++ release_sock(psk); ++unlock_child: ++ release_sock(sk); ++ ++ return err; ++} ++ ++static int skcipher_sendmsg_nokey(struct socket *sock, struct msghdr *msg, ++ size_t size) ++{ ++ int err; ++ ++ err = skcipher_check_key(sock); ++ if (err) ++ return err; ++ ++ return skcipher_sendmsg(sock, msg, size); ++} ++ ++static ssize_t skcipher_sendpage_nokey(struct socket *sock, struct page *page, ++ int offset, size_t size, int flags) ++{ ++ int err; ++ ++ err = skcipher_check_key(sock); ++ if (err) ++ return err; ++ ++ return skcipher_sendpage(sock, page, offset, size, flags); ++} ++ ++static int skcipher_recvmsg_nokey(struct socket *sock, struct msghdr *msg, ++ size_t ignored, int flags) ++{ ++ int err; ++ ++ err = skcipher_check_key(sock); ++ if (err) ++ return err; ++ ++ return skcipher_recvmsg(sock, msg, ignored, flags); ++} ++ ++static struct proto_ops algif_skcipher_ops_nokey = { ++ .family = PF_ALG, ++ ++ .connect = sock_no_connect, ++ .socketpair = sock_no_socketpair, ++ .getname = sock_no_getname, ++ .ioctl = sock_no_ioctl, ++ .listen = sock_no_listen, ++ .shutdown = sock_no_shutdown, ++ .getsockopt = sock_no_getsockopt, ++ .mmap = sock_no_mmap, ++ .bind = sock_no_bind, ++ .accept = sock_no_accept, ++ .setsockopt = sock_no_setsockopt, ++ ++ .release = af_alg_release, ++ .sendmsg = skcipher_sendmsg_nokey, ++ .sendpage = skcipher_sendpage_nokey, ++ .recvmsg = skcipher_recvmsg_nokey, ++ .poll = skcipher_poll, ++}; ++ + static void *skcipher_bind(const char *name, u32 type, u32 mask) + { +- return crypto_alloc_skcipher(name, type, mask); ++ struct skcipher_tfm *tfm; ++ struct crypto_skcipher *skcipher; ++ ++ tfm = kzalloc(sizeof(*tfm), GFP_KERNEL); ++ if (!tfm) ++ return ERR_PTR(-ENOMEM); ++ ++ skcipher = crypto_alloc_skcipher(name, type, mask); ++ if (IS_ERR(skcipher)) { ++ kfree(tfm); ++ return ERR_CAST(skcipher); ++ } ++ ++ tfm->skcipher = skcipher; ++ ++ return tfm; + } + + static void skcipher_release(void *private) + { +- crypto_free_skcipher(private); ++ struct skcipher_tfm *tfm = private; ++ ++ crypto_free_skcipher(tfm->skcipher); ++ kfree(tfm); + } + + static int skcipher_setkey(void *private, const u8 *key, unsigned int keylen) + { +- return crypto_skcipher_setkey(private, key, keylen); ++ struct skcipher_tfm *tfm = private; ++ int err; ++ ++ err = crypto_skcipher_setkey(tfm->skcipher, key, keylen); ++ tfm->has_key = !err; ++ ++ return err; + } + + static void skcipher_wait(struct sock *sk) +@@ -788,24 +917,26 @@ static void skcipher_sock_destruct(struc + af_alg_release_parent(sk); + } + +-static int skcipher_accept_parent(void *private, struct sock *sk) ++static int skcipher_accept_parent_nokey(void *private, struct sock *sk) + { + struct skcipher_ctx *ctx; + struct alg_sock *ask = alg_sk(sk); +- unsigned int len = sizeof(*ctx) + crypto_skcipher_reqsize(private); ++ struct skcipher_tfm *tfm = private; ++ struct crypto_skcipher *skcipher = tfm->skcipher; ++ unsigned int len = sizeof(*ctx) + crypto_skcipher_reqsize(skcipher); + + ctx = sock_kmalloc(sk, len, GFP_KERNEL); + if (!ctx) + return -ENOMEM; + +- ctx->iv = sock_kmalloc(sk, crypto_skcipher_ivsize(private), ++ ctx->iv = sock_kmalloc(sk, crypto_skcipher_ivsize(skcipher), + GFP_KERNEL); + if (!ctx->iv) { + sock_kfree_s(sk, ctx, len); + return -ENOMEM; + } + +- memset(ctx->iv, 0, crypto_skcipher_ivsize(private)); ++ memset(ctx->iv, 0, crypto_skcipher_ivsize(skcipher)); + + INIT_LIST_HEAD(&ctx->tsgl); + ctx->len = len; +@@ -818,8 +949,9 @@ static int skcipher_accept_parent(void * + + ask->private = ctx; + +- skcipher_request_set_tfm(&ctx->req, private); +- skcipher_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_BACKLOG, ++ skcipher_request_set_tfm(&ctx->req, skcipher); ++ skcipher_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_SLEEP | ++ CRYPTO_TFM_REQ_MAY_BACKLOG, + af_alg_complete, &ctx->completion); + + sk->sk_destruct = skcipher_sock_destruct; +@@ -827,12 +959,24 @@ static int skcipher_accept_parent(void * + return 0; + } + ++static int skcipher_accept_parent(void *private, struct sock *sk) ++{ ++ struct skcipher_tfm *tfm = private; ++ ++ if (!tfm->has_key && crypto_skcipher_has_setkey(tfm->skcipher)) ++ return -ENOKEY; ++ ++ return skcipher_accept_parent_nokey(private, sk); ++} ++ + static const struct af_alg_type algif_type_skcipher = { + .bind = skcipher_bind, + .release = skcipher_release, + .setkey = skcipher_setkey, + .accept = skcipher_accept_parent, ++ .accept_nokey = skcipher_accept_parent_nokey, + .ops = &algif_skcipher_ops, ++ .ops_nokey = &algif_skcipher_ops_nokey, + .name = "skcipher", + .owner = THIS_MODULE + }; +diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/asymmetric_keys/x509_cert_parser.c linux-libre-4.4.7-gnu/crypto/asymmetric_keys/x509_cert_parser.c +--- linux-libre-4.4-gnu/crypto/asymmetric_keys/x509_cert_parser.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/crypto/asymmetric_keys/x509_cert_parser.c 2016-04-12 12:09:26.000000000 -0400 +@@ -494,7 +494,7 @@ int x509_decode_time(time64_t *_t, size + unsigned char tag, + const unsigned char *value, size_t vlen) + { +- static const unsigned char month_lengths[] = { 31, 29, 31, 30, 31, 30, ++ static const unsigned char month_lengths[] = { 31, 28, 31, 30, 31, 30, + 31, 31, 30, 31, 30, 31 }; + const unsigned char *p = value; + unsigned year, mon, day, hour, min, sec, mon_len; +@@ -540,9 +540,9 @@ int x509_decode_time(time64_t *_t, size + if (year % 4 == 0) { + mon_len = 29; + if (year % 100 == 0) { +- year /= 100; +- if (year % 4 != 0) +- mon_len = 28; ++ mon_len = 28; ++ if (year % 400 == 0) ++ mon_len = 29; + } + } + } +diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/crc32c_generic.c linux-libre-4.4.7-gnu/crypto/crc32c_generic.c +--- linux-libre-4.4-gnu/crypto/crc32c_generic.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/crypto/crc32c_generic.c 2016-04-12 12:09:26.000000000 -0400 +@@ -172,4 +172,3 @@ MODULE_DESCRIPTION("CRC32c (Castagnoli) + MODULE_LICENSE("GPL"); + MODULE_ALIAS_CRYPTO("crc32c"); + MODULE_ALIAS_CRYPTO("crc32c-generic"); +-MODULE_SOFTDEP("pre: crc32c"); +diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/crypto_user.c linux-libre-4.4.7-gnu/crypto/crypto_user.c +--- linux-libre-4.4-gnu/crypto/crypto_user.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/crypto/crypto_user.c 2016-04-12 12:09:26.000000000 -0400 +@@ -499,6 +499,7 @@ static int crypto_user_rcv_msg(struct sk + if (link->dump == NULL) + return -EINVAL; + ++ down_read(&crypto_alg_sem); + list_for_each_entry(alg, &crypto_alg_list, cra_list) + dump_alloc += CRYPTO_REPORT_MAXSIZE; + +@@ -508,8 +509,11 @@ static int crypto_user_rcv_msg(struct sk + .done = link->done, + .min_dump_alloc = dump_alloc, + }; +- return netlink_dump_start(crypto_nlsk, skb, nlh, &c); ++ err = netlink_dump_start(crypto_nlsk, skb, nlh, &c); + } ++ up_read(&crypto_alg_sem); ++ ++ return err; + } + + err = nlmsg_parse(nlh, crypto_msg_min[type], attrs, CRYPTOCFGA_MAX, +diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/keywrap.c linux-libre-4.4.7-gnu/crypto/keywrap.c +--- linux-libre-4.4-gnu/crypto/keywrap.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/crypto/keywrap.c 2016-04-12 12:09:26.000000000 -0400 +@@ -212,7 +212,7 @@ static int crypto_kw_decrypt(struct blkc + SEMIBSIZE)) + ret = -EBADMSG; + +- memzero_explicit(&block, sizeof(struct crypto_kw_block)); ++ memzero_explicit(block, sizeof(struct crypto_kw_block)); + + return ret; + } +@@ -297,7 +297,7 @@ static int crypto_kw_encrypt(struct blkc + /* establish the IV for the caller to pick up */ + memcpy(desc->info, block->A, SEMIBSIZE); + +- memzero_explicit(&block, sizeof(struct crypto_kw_block)); ++ memzero_explicit(block, sizeof(struct crypto_kw_block)); + + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/shash.c linux-libre-4.4.7-gnu/crypto/shash.c +--- linux-libre-4.4-gnu/crypto/shash.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/crypto/shash.c 2016-04-12 12:09:26.000000000 -0400 +@@ -354,9 +354,10 @@ int crypto_init_shash_ops_async(struct c + crt->final = shash_async_final; + crt->finup = shash_async_finup; + crt->digest = shash_async_digest; ++ crt->setkey = shash_async_setkey; ++ ++ crt->has_setkey = alg->setkey != shash_no_setkey; + +- if (alg->setkey) +- crt->setkey = shash_async_setkey; + if (alg->export) + crt->export = shash_async_export; + if (alg->import) +diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/skcipher.c linux-libre-4.4.7-gnu/crypto/skcipher.c +--- linux-libre-4.4-gnu/crypto/skcipher.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/crypto/skcipher.c 2016-04-12 12:09:26.000000000 -0400 +@@ -118,6 +118,7 @@ static int crypto_init_skcipher_ops_blkc + skcipher->decrypt = skcipher_decrypt_blkcipher; + + skcipher->ivsize = crypto_blkcipher_ivsize(blkcipher); ++ skcipher->has_setkey = calg->cra_blkcipher.max_keysize; + + return 0; + } +@@ -210,6 +211,7 @@ static int crypto_init_skcipher_ops_ablk + skcipher->ivsize = crypto_ablkcipher_ivsize(ablkcipher); + skcipher->reqsize = crypto_ablkcipher_reqsize(ablkcipher) + + sizeof(struct ablkcipher_request); ++ skcipher->has_setkey = calg->cra_ablkcipher.max_keysize; + + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/ABI/testing/sysfs-bus-usb linux-libre-4.4.7-gnu/Documentation/ABI/testing/sysfs-bus-usb +--- linux-libre-4.4-gnu/Documentation/ABI/testing/sysfs-bus-usb 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/Documentation/ABI/testing/sysfs-bus-usb 2016-04-12 12:09:26.000000000 -0400 +@@ -134,19 +134,21 @@ Description: + enabled for the device. Developer can write y/Y/1 or n/N/0 to + the file to enable/disable the feature. + +-What: /sys/bus/usb/devices/.../power/usb3_hardware_lpm +-Date: June 2015 ++What: /sys/bus/usb/devices/.../power/usb3_hardware_lpm_u1 ++ /sys/bus/usb/devices/.../power/usb3_hardware_lpm_u2 ++Date: November 2015 + Contact: Kevin Strasser <kevin.strasser@linux.intel.com> ++ Lu Baolu <baolu.lu@linux.intel.com> + Description: + If CONFIG_PM is set and a USB 3.0 lpm-capable device is plugged + in to a xHCI host which supports link PM, it will check if U1 + and U2 exit latencies have been set in the BOS descriptor; if +- the check is is passed and the host supports USB3 hardware LPM, ++ the check is passed and the host supports USB3 hardware LPM, + USB3 hardware LPM will be enabled for the device and the USB +- device directory will contain a file named +- power/usb3_hardware_lpm. The file holds a string value (enable +- or disable) indicating whether or not USB3 hardware LPM is +- enabled for the device. ++ device directory will contain two files named ++ power/usb3_hardware_lpm_u1 and power/usb3_hardware_lpm_u2. These ++ files hold a string value (enable or disable) indicating whether ++ or not USB3 hardware LPM U1 or U2 is enabled for the device. + + What: /sys/bus/usb/devices/.../removable + Date: February 2012 +diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/devicetree/bindings/arm/omap/omap.txt linux-libre-4.4.7-gnu/Documentation/devicetree/bindings/arm/omap/omap.txt +--- linux-libre-4.4-gnu/Documentation/devicetree/bindings/arm/omap/omap.txt 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/Documentation/devicetree/bindings/arm/omap/omap.txt 2016-04-12 12:09:26.000000000 -0400 +@@ -23,6 +23,7 @@ Optional properties: + during suspend. + - ti,no-reset-on-init: When present, the module should not be reset at init + - ti,no-idle-on-init: When present, the module should not be idled at init ++- ti,no-idle: When present, the module is never allowed to idle. + + Example: + +diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/filesystems/efivarfs.txt linux-libre-4.4.7-gnu/Documentation/filesystems/efivarfs.txt +--- linux-libre-4.4-gnu/Documentation/filesystems/efivarfs.txt 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/Documentation/filesystems/efivarfs.txt 2016-04-12 12:09:26.000000000 -0400 +@@ -14,3 +14,10 @@ filesystem. + efivarfs is typically mounted like this, + + mount -t efivarfs none /sys/firmware/efi/efivars ++ ++Due to the presence of numerous firmware bugs where removing non-standard ++UEFI variables causes the system firmware to fail to POST, efivarfs ++files that are not well-known standardized variables are created ++as immutable files. This doesn't prevent removal - "chattr -i" will work - ++but it does prevent this kind of failure from being accomplished ++accidentally. +diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/usb/power-management.txt linux-libre-4.4.7-gnu/Documentation/usb/power-management.txt +--- linux-libre-4.4-gnu/Documentation/usb/power-management.txt 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/Documentation/usb/power-management.txt 2016-04-12 12:09:26.000000000 -0400 +@@ -537,17 +537,18 @@ relevant attribute files are usb2_hardwa + can write y/Y/1 or n/N/0 to the file to enable/disable + USB2 hardware LPM manually. This is for test purpose mainly. + +- power/usb3_hardware_lpm ++ power/usb3_hardware_lpm_u1 ++ power/usb3_hardware_lpm_u2 + + When a USB 3.0 lpm-capable device is plugged in to a + xHCI host which supports link PM, it will check if U1 + and U2 exit latencies have been set in the BOS + descriptor; if the check is is passed and the host + supports USB3 hardware LPM, USB3 hardware LPM will be +- enabled for the device and this file will be created. +- The file holds a string value (enable or disable) +- indicating whether or not USB3 hardware LPM is +- enabled for the device. ++ enabled for the device and these files will be created. ++ The files hold a string value (enable or disable) ++ indicating whether or not USB3 hardware LPM U1 or U2 ++ is enabled for the device. + + USB Port Power Control + ---------------------- +diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/virtual/kvm/mmu.txt linux-libre-4.4.7-gnu/Documentation/virtual/kvm/mmu.txt +--- linux-libre-4.4-gnu/Documentation/virtual/kvm/mmu.txt 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/Documentation/virtual/kvm/mmu.txt 2016-04-12 12:09:26.000000000 -0400 +@@ -358,7 +358,8 @@ In the first case there are two addition + - if CR4.SMEP is enabled: since we've turned the page into a kernel page, + the kernel may now execute it. We handle this by also setting spte.nx. + If we get a user fetch or read fault, we'll change spte.u=1 and +- spte.nx=gpte.nx back. ++ spte.nx=gpte.nx back. For this to work, KVM forces EFER.NX to 1 when ++ shadow paging is in use. + - if CR4.SMAP is disabled: since the page has been changed to a kernel + page, it can not be reused when CR4.SMAP is enabled. We set + CR4.SMAP && !CR0.WP into shadow page's role to avoid this case. Note, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/acpi_video.c linux-libre-4.4.7-gnu/drivers/acpi/acpi_video.c +--- linux-libre-4.4-gnu/drivers/acpi/acpi_video.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/acpi/acpi_video.c 2016-04-12 12:09:26.000000000 -0400 +@@ -465,6 +465,15 @@ static struct dmi_system_id video_dmi_ta + * as brightness control does not work. + */ + { ++ /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */ ++ .callback = video_disable_backlight_sysfs_if, ++ .ident = "Toshiba Portege R700", ++ .matches = { ++ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), ++ DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"), ++ }, ++ }, ++ { + /* https://bugs.freedesktop.org/show_bug.cgi?id=82634 */ + .callback = video_disable_backlight_sysfs_if, + .ident = "Toshiba Portege R830", +@@ -473,6 +482,15 @@ static struct dmi_system_id video_dmi_ta + DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R830"), + }, + }, ++ { ++ /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */ ++ .callback = video_disable_backlight_sysfs_if, ++ .ident = "Toshiba Satellite R830", ++ .matches = { ++ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), ++ DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE R830"), ++ }, ++ }, + /* + * Some machine's _DOD IDs don't have bit 31(Device ID Scheme) set + * but the IDs actually follow the Device ID Scheme. +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/nfit.c linux-libre-4.4.7-gnu/drivers/acpi/nfit.c +--- linux-libre-4.4-gnu/drivers/acpi/nfit.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/acpi/nfit.c 2016-04-12 12:09:26.000000000 -0400 +@@ -468,37 +468,16 @@ static void nfit_mem_find_spa_bdw(struct + nfit_mem->bdw = NULL; + } + +-static int nfit_mem_add(struct acpi_nfit_desc *acpi_desc, ++static void nfit_mem_init_bdw(struct acpi_nfit_desc *acpi_desc, + struct nfit_mem *nfit_mem, struct acpi_nfit_system_address *spa) + { + u16 dcr = __to_nfit_memdev(nfit_mem)->region_index; + struct nfit_memdev *nfit_memdev; + struct nfit_flush *nfit_flush; +- struct nfit_dcr *nfit_dcr; + struct nfit_bdw *nfit_bdw; + struct nfit_idt *nfit_idt; + u16 idt_idx, range_index; + +- list_for_each_entry(nfit_dcr, &acpi_desc->dcrs, list) { +- if (nfit_dcr->dcr->region_index != dcr) +- continue; +- nfit_mem->dcr = nfit_dcr->dcr; +- break; +- } +- +- if (!nfit_mem->dcr) { +- dev_dbg(acpi_desc->dev, "SPA %d missing:%s%s\n", +- spa->range_index, __to_nfit_memdev(nfit_mem) +- ? "" : " MEMDEV", nfit_mem->dcr ? "" : " DCR"); +- return -ENODEV; +- } +- +- /* +- * We've found enough to create an nvdimm, optionally +- * find an associated BDW +- */ +- list_add(&nfit_mem->list, &acpi_desc->dimms); +- + list_for_each_entry(nfit_bdw, &acpi_desc->bdws, list) { + if (nfit_bdw->bdw->region_index != dcr) + continue; +@@ -507,12 +486,12 @@ static int nfit_mem_add(struct acpi_nfit + } + + if (!nfit_mem->bdw) +- return 0; ++ return; + + nfit_mem_find_spa_bdw(acpi_desc, nfit_mem); + + if (!nfit_mem->spa_bdw) +- return 0; ++ return; + + range_index = nfit_mem->spa_bdw->range_index; + list_for_each_entry(nfit_memdev, &acpi_desc->memdevs, list) { +@@ -537,8 +516,6 @@ static int nfit_mem_add(struct acpi_nfit + } + break; + } +- +- return 0; + } + + static int nfit_mem_dcr_init(struct acpi_nfit_desc *acpi_desc, +@@ -547,7 +524,6 @@ static int nfit_mem_dcr_init(struct acpi + struct nfit_mem *nfit_mem, *found; + struct nfit_memdev *nfit_memdev; + int type = nfit_spa_type(spa); +- u16 dcr; + + switch (type) { + case NFIT_SPA_DCR: +@@ -558,14 +534,18 @@ static int nfit_mem_dcr_init(struct acpi + } + + list_for_each_entry(nfit_memdev, &acpi_desc->memdevs, list) { +- int rc; ++ struct nfit_dcr *nfit_dcr; ++ u32 device_handle; ++ u16 dcr; + + if (nfit_memdev->memdev->range_index != spa->range_index) + continue; + found = NULL; + dcr = nfit_memdev->memdev->region_index; ++ device_handle = nfit_memdev->memdev->device_handle; + list_for_each_entry(nfit_mem, &acpi_desc->dimms, list) +- if (__to_nfit_memdev(nfit_mem)->region_index == dcr) { ++ if (__to_nfit_memdev(nfit_mem)->device_handle ++ == device_handle) { + found = nfit_mem; + break; + } +@@ -578,6 +558,31 @@ static int nfit_mem_dcr_init(struct acpi + if (!nfit_mem) + return -ENOMEM; + INIT_LIST_HEAD(&nfit_mem->list); ++ list_add(&nfit_mem->list, &acpi_desc->dimms); ++ } ++ ++ list_for_each_entry(nfit_dcr, &acpi_desc->dcrs, list) { ++ if (nfit_dcr->dcr->region_index != dcr) ++ continue; ++ /* ++ * Record the control region for the dimm. For ++ * the ACPI 6.1 case, where there are separate ++ * control regions for the pmem vs blk ++ * interfaces, be sure to record the extended ++ * blk details. ++ */ ++ if (!nfit_mem->dcr) ++ nfit_mem->dcr = nfit_dcr->dcr; ++ else if (nfit_mem->dcr->windows == 0 ++ && nfit_dcr->dcr->windows) ++ nfit_mem->dcr = nfit_dcr->dcr; ++ break; ++ } ++ ++ if (dcr && !nfit_mem->dcr) { ++ dev_err(acpi_desc->dev, "SPA %d missing DCR %d\n", ++ spa->range_index, dcr); ++ return -ENODEV; + } + + if (type == NFIT_SPA_DCR) { +@@ -594,6 +599,7 @@ static int nfit_mem_dcr_init(struct acpi + nfit_mem->idt_dcr = nfit_idt->idt; + break; + } ++ nfit_mem_init_bdw(acpi_desc, nfit_mem, spa); + } else { + /* + * A single dimm may belong to multiple SPA-PM +@@ -602,13 +608,6 @@ static int nfit_mem_dcr_init(struct acpi + */ + nfit_mem->memdev_pmem = nfit_memdev->memdev; + } +- +- if (found) +- continue; +- +- rc = nfit_mem_add(acpi_desc, nfit_mem, spa); +- if (rc) +- return rc; + } + + return 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/resource.c linux-libre-4.4.7-gnu/drivers/acpi/resource.c +--- linux-libre-4.4-gnu/drivers/acpi/resource.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/acpi/resource.c 2016-04-12 12:09:26.000000000 -0400 +@@ -26,8 +26,20 @@ + + #ifdef CONFIG_X86 + #define valid_IRQ(i) (((i) != 0) && ((i) != 2)) ++static inline bool acpi_iospace_resource_valid(struct resource *res) ++{ ++ /* On X86 IO space is limited to the [0 - 64K] IO port range */ ++ return res->end < 0x10003; ++} + #else + #define valid_IRQ(i) (true) ++/* ++ * ACPI IO descriptors on arches other than X86 contain MMIO CPU physical ++ * addresses mapping IO space in CPU physical address space, IO space ++ * resources can be placed anywhere in the 64-bit physical address space. ++ */ ++static inline bool ++acpi_iospace_resource_valid(struct resource *res) { return true; } + #endif + + static bool acpi_dev_resource_len_valid(u64 start, u64 end, u64 len, bool io) +@@ -126,7 +138,7 @@ static void acpi_dev_ioresource_flags(st + if (!acpi_dev_resource_len_valid(res->start, res->end, len, true)) + res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET; + +- if (res->end >= 0x10003) ++ if (!acpi_iospace_resource_valid(res)) + res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET; + + if (io_decode == ACPI_DECODE_16) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/sleep.c linux-libre-4.4.7-gnu/drivers/acpi/sleep.c +--- linux-libre-4.4-gnu/drivers/acpi/sleep.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/acpi/sleep.c 2016-04-12 12:09:26.000000000 -0400 +@@ -714,6 +714,7 @@ static int acpi_hibernation_enter(void) + + static void acpi_hibernation_leave(void) + { ++ pm_set_resume_via_firmware(); + /* + * If ACPI is not enabled by the BIOS and the boot kernel, we need to + * enable it here. +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/video_detect.c linux-libre-4.4.7-gnu/drivers/acpi/video_detect.c +--- linux-libre-4.4-gnu/drivers/acpi/video_detect.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/acpi/video_detect.c 2016-04-12 12:09:26.000000000 -0400 +@@ -135,14 +135,6 @@ static const struct dmi_system_id video_ + DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"), + }, + }, +- { +- .callback = video_detect_force_vendor, +- .ident = "Dell Inspiron 5737", +- .matches = { +- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), +- DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5737"), +- }, +- }, + + /* + * These models have a working acpi_video backlight control, and using +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/android/binder.c linux-libre-4.4.7-gnu/drivers/android/binder.c +--- linux-libre-4.4-gnu/drivers/android/binder.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/android/binder.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2074,7 +2074,7 @@ static int binder_thread_write(struct bi + if (get_user(cookie, (binder_uintptr_t __user *)ptr)) + return -EFAULT; + +- ptr += sizeof(void *); ++ ptr += sizeof(cookie); + list_for_each_entry(w, &proc->delivered_death, entry) { + struct binder_ref_death *tmp_death = container_of(w, struct binder_ref_death, work); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/ahci.c linux-libre-4.4.7-gnu/drivers/ata/ahci.c +--- linux-libre-4.4-gnu/drivers/ata/ahci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/ata/ahci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -264,6 +264,26 @@ static const struct pci_device_id ahci_p + { PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */ + { PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */ + { PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19b0), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19b1), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19b2), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19b3), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19b4), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19b5), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19b6), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19b7), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19bE), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19bF), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19c0), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19c1), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19c2), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19c3), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19c4), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19c5), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19c6), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19c7), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19cE), board_ahci }, /* DNV AHCI */ ++ { PCI_VDEVICE(INTEL, 0x19cF), board_ahci }, /* DNV AHCI */ + { PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */ + { PCI_VDEVICE(INTEL, 0x1c03), board_ahci }, /* CPT AHCI */ + { PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */ +@@ -347,15 +367,21 @@ static const struct pci_device_id ahci_p + { PCI_VDEVICE(INTEL, 0xa107), board_ahci }, /* Sunrise Point-H RAID */ + { PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */ + { PCI_VDEVICE(INTEL, 0x2822), board_ahci }, /* Lewisburg RAID*/ ++ { PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Lewisburg AHCI*/ + { PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* Lewisburg RAID*/ ++ { PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Lewisburg RAID*/ + { PCI_VDEVICE(INTEL, 0xa182), board_ahci }, /* Lewisburg AHCI*/ + { PCI_VDEVICE(INTEL, 0xa184), board_ahci }, /* Lewisburg RAID*/ + { PCI_VDEVICE(INTEL, 0xa186), board_ahci }, /* Lewisburg RAID*/ + { PCI_VDEVICE(INTEL, 0xa18e), board_ahci }, /* Lewisburg RAID*/ ++ { PCI_VDEVICE(INTEL, 0xa1d2), board_ahci }, /* Lewisburg RAID*/ ++ { PCI_VDEVICE(INTEL, 0xa1d6), board_ahci }, /* Lewisburg RAID*/ + { PCI_VDEVICE(INTEL, 0xa202), board_ahci }, /* Lewisburg AHCI*/ + { PCI_VDEVICE(INTEL, 0xa204), board_ahci }, /* Lewisburg RAID*/ + { PCI_VDEVICE(INTEL, 0xa206), board_ahci }, /* Lewisburg RAID*/ + { PCI_VDEVICE(INTEL, 0xa20e), board_ahci }, /* Lewisburg RAID*/ ++ { PCI_VDEVICE(INTEL, 0xa252), board_ahci }, /* Lewisburg RAID*/ ++ { PCI_VDEVICE(INTEL, 0xa256), board_ahci }, /* Lewisburg RAID*/ + + /* JMicron 360/1/3/5/6, match class to avoid IDE function */ + { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/libahci.c linux-libre-4.4.7-gnu/drivers/ata/libahci.c +--- linux-libre-4.4-gnu/drivers/ata/libahci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/ata/libahci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -495,8 +495,8 @@ void ahci_save_initial_config(struct dev + } + } + +- /* fabricate port_map from cap.nr_ports */ +- if (!port_map) { ++ /* fabricate port_map from cap.nr_ports for < AHCI 1.3 */ ++ if (!port_map && vers < 0x10300) { + port_map = (1 << ahci_nr_ports(cap)) - 1; + dev_warn(dev, "forcing PORTS_IMPL to 0x%x\n", port_map); + +@@ -1142,8 +1142,7 @@ static void ahci_port_init(struct device + + /* mark esata ports */ + tmp = readl(port_mmio + PORT_CMD); +- if ((tmp & PORT_CMD_HPCP) || +- ((tmp & PORT_CMD_ESP) && (hpriv->cap & HOST_CAP_SXS))) ++ if ((tmp & PORT_CMD_ESP) && (hpriv->cap & HOST_CAP_SXS)) + ap->pflags |= ATA_PFLAG_EXTERNAL; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/libata-scsi.c linux-libre-4.4.7-gnu/drivers/ata/libata-scsi.c +--- linux-libre-4.4-gnu/drivers/ata/libata-scsi.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/ata/libata-scsi.c 2016-04-12 12:09:26.000000000 -0400 +@@ -675,19 +675,18 @@ static int ata_ioc32(struct ata_port *ap + int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *scsidev, + int cmd, void __user *arg) + { +- int val = -EINVAL, rc = -EINVAL; ++ unsigned long val; ++ int rc = -EINVAL; + unsigned long flags; + + switch (cmd) { +- case ATA_IOC_GET_IO32: ++ case HDIO_GET_32BIT: + spin_lock_irqsave(ap->lock, flags); + val = ata_ioc32(ap); + spin_unlock_irqrestore(ap->lock, flags); +- if (copy_to_user(arg, &val, 1)) +- return -EFAULT; +- return 0; ++ return put_user(val, (unsigned long __user *)arg); + +- case ATA_IOC_SET_IO32: ++ case HDIO_SET_32BIT: + val = (unsigned long) arg; + rc = 0; + spin_lock_irqsave(ap->lock, flags); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/libata-sff.c linux-libre-4.4.7-gnu/drivers/ata/libata-sff.c +--- linux-libre-4.4-gnu/drivers/ata/libata-sff.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/ata/libata-sff.c 2016-04-12 12:09:26.000000000 -0400 +@@ -997,12 +997,9 @@ static inline int ata_hsm_ok_in_wq(struc + static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq) + { + struct ata_port *ap = qc->ap; +- unsigned long flags; + + if (ap->ops->error_handler) { + if (in_wq) { +- spin_lock_irqsave(ap->lock, flags); +- + /* EH might have kicked in while host lock is + * released. + */ +@@ -1014,8 +1011,6 @@ static void ata_hsm_qc_complete(struct a + } else + ata_port_freeze(ap); + } +- +- spin_unlock_irqrestore(ap->lock, flags); + } else { + if (likely(!(qc->err_mask & AC_ERR_HSM))) + ata_qc_complete(qc); +@@ -1024,10 +1019,8 @@ static void ata_hsm_qc_complete(struct a + } + } else { + if (in_wq) { +- spin_lock_irqsave(ap->lock, flags); + ata_sff_irq_on(ap); + ata_qc_complete(qc); +- spin_unlock_irqrestore(ap->lock, flags); + } else + ata_qc_complete(qc); + } +@@ -1048,9 +1041,10 @@ int ata_sff_hsm_move(struct ata_port *ap + { + struct ata_link *link = qc->dev->link; + struct ata_eh_info *ehi = &link->eh_info; +- unsigned long flags = 0; + int poll_next; + ++ lockdep_assert_held(ap->lock); ++ + WARN_ON_ONCE((qc->flags & ATA_QCFLAG_ACTIVE) == 0); + + /* Make sure ata_sff_qc_issue() does not throw things +@@ -1112,14 +1106,6 @@ fsm_start: + } + } + +- /* Send the CDB (atapi) or the first data block (ata pio out). +- * During the state transition, interrupt handler shouldn't +- * be invoked before the data transfer is complete and +- * hsm_task_state is changed. Hence, the following locking. +- */ +- if (in_wq) +- spin_lock_irqsave(ap->lock, flags); +- + if (qc->tf.protocol == ATA_PROT_PIO) { + /* PIO data out protocol. + * send first data block. +@@ -1135,9 +1121,6 @@ fsm_start: + /* send CDB */ + atapi_send_cdb(ap, qc); + +- if (in_wq) +- spin_unlock_irqrestore(ap->lock, flags); +- + /* if polling, ata_sff_pio_task() handles the rest. + * otherwise, interrupt handler takes over from here. + */ +@@ -1361,12 +1344,14 @@ static void ata_sff_pio_task(struct work + u8 status; + int poll_next; + ++ spin_lock_irq(ap->lock); ++ + BUG_ON(ap->sff_pio_task_link == NULL); + /* qc can be NULL if timeout occurred */ + qc = ata_qc_from_tag(ap, link->active_tag); + if (!qc) { + ap->sff_pio_task_link = NULL; +- return; ++ goto out_unlock; + } + + fsm_start: +@@ -1381,11 +1366,14 @@ fsm_start: + */ + status = ata_sff_busy_wait(ap, ATA_BUSY, 5); + if (status & ATA_BUSY) { ++ spin_unlock_irq(ap->lock); + ata_msleep(ap, 2); ++ spin_lock_irq(ap->lock); ++ + status = ata_sff_busy_wait(ap, ATA_BUSY, 10); + if (status & ATA_BUSY) { + ata_sff_queue_pio_task(link, ATA_SHORT_PAUSE); +- return; ++ goto out_unlock; + } + } + +@@ -1402,6 +1390,8 @@ fsm_start: + */ + if (poll_next) + goto fsm_start; ++out_unlock: ++ spin_unlock_irq(ap->lock); + } + + /** +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/pata_rb532_cf.c linux-libre-4.4.7-gnu/drivers/ata/pata_rb532_cf.c +--- linux-libre-4.4-gnu/drivers/ata/pata_rb532_cf.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/ata/pata_rb532_cf.c 2016-04-12 12:09:26.000000000 -0400 +@@ -32,6 +32,8 @@ + #include <linux/libata.h> + #include <scsi/scsi_host.h> + ++#include <asm/mach-rc32434/rb.h> ++ + #define DRV_NAME "pata-rb532-cf" + #define DRV_VERSION "0.1.0" + #define DRV_DESC "PATA driver for RouterBOARD 532 Compact Flash" +@@ -107,6 +109,7 @@ static int rb532_pata_driver_probe(struc + int gpio; + struct resource *res; + struct ata_host *ah; ++ struct cf_device *pdata; + struct rb532_cf_info *info; + int ret; + +@@ -122,7 +125,13 @@ static int rb532_pata_driver_probe(struc + return -ENOENT; + } + +- gpio = irq_to_gpio(irq); ++ pdata = dev_get_platdata(&pdev->dev); ++ if (!pdata) { ++ dev_err(&pdev->dev, "no platform data specified\n"); ++ return -EINVAL; ++ } ++ ++ gpio = pdata->gpio_pin; + if (gpio < 0) { + dev_err(&pdev->dev, "no GPIO found for irq%d\n", irq); + return -ENOENT; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/platform.c linux-libre-4.4.7-gnu/drivers/base/platform.c +--- linux-libre-4.4-gnu/drivers/base/platform.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/base/platform.c 2016-04-12 12:09:26.000000000 -0400 +@@ -513,10 +513,15 @@ static int platform_drv_probe(struct dev + return ret; + + ret = dev_pm_domain_attach(_dev, true); +- if (ret != -EPROBE_DEFER && drv->probe) { +- ret = drv->probe(dev); +- if (ret) +- dev_pm_domain_detach(_dev, true); ++ if (ret != -EPROBE_DEFER) { ++ if (drv->probe) { ++ ret = drv->probe(dev); ++ if (ret) ++ dev_pm_domain_detach(_dev, true); ++ } else { ++ /* don't fail if just dev_pm_domain_attach failed */ ++ ret = 0; ++ } + } + + if (drv->prevent_deferred_probe && ret == -EPROBE_DEFER) { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/brd.c linux-libre-4.4.7-gnu/drivers/block/brd.c +--- linux-libre-4.4-gnu/drivers/block/brd.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/block/brd.c 2016-04-12 12:09:26.000000000 -0400 +@@ -338,7 +338,7 @@ static blk_qc_t brd_make_request(struct + + if (unlikely(bio->bi_rw & REQ_DISCARD)) { + if (sector & ((PAGE_SIZE >> SECTOR_SHIFT) - 1) || +- bio->bi_iter.bi_size & PAGE_MASK) ++ bio->bi_iter.bi_size & ~PAGE_MASK) + goto io_error; + discard_from_brd(brd, sector, bio->bi_iter.bi_size); + goto out; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/mtip32xx/mtip32xx.c linux-libre-4.4.7-gnu/drivers/block/mtip32xx/mtip32xx.c +--- linux-libre-4.4-gnu/drivers/block/mtip32xx/mtip32xx.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/block/mtip32xx/mtip32xx.c 2016-04-12 12:09:26.000000000 -0400 +@@ -173,7 +173,13 @@ static struct mtip_cmd *mtip_get_int_com + { + struct request *rq; + ++ if (mtip_check_surprise_removal(dd->pdev)) ++ return NULL; ++ + rq = blk_mq_alloc_request(dd->queue, 0, __GFP_RECLAIM, true); ++ if (IS_ERR(rq)) ++ return NULL; ++ + return blk_mq_rq_to_pdu(rq); + } + +@@ -233,15 +239,9 @@ static void mtip_async_complete(struct m + "Command tag %d failed due to TFE\n", tag); + } + +- /* Unmap the DMA scatter list entries */ +- dma_unmap_sg(&dd->pdev->dev, cmd->sg, cmd->scatter_ents, cmd->direction); +- + rq = mtip_rq_from_tag(dd, tag); + +- if (unlikely(cmd->unaligned)) +- up(&port->cmd_slot_unal); +- +- blk_mq_end_request(rq, status ? -EIO : 0); ++ blk_mq_complete_request(rq, status); + } + + /* +@@ -581,6 +581,8 @@ static void mtip_completion(struct mtip_ + dev_warn(&port->dd->pdev->dev, + "Internal command %d completed with TFE\n", tag); + ++ command->comp_func = NULL; ++ command->comp_data = NULL; + complete(waiting); + } + +@@ -618,8 +620,6 @@ static void mtip_handle_tfe(struct drive + + port = dd->port; + +- set_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags); +- + if (test_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags)) { + cmd = mtip_cmd_from_tag(dd, MTIP_TAG_INTERNAL); + dbg_printk(MTIP_DRV_NAME " TFE for the internal command\n"); +@@ -628,7 +628,7 @@ static void mtip_handle_tfe(struct drive + cmd->comp_func(port, MTIP_TAG_INTERNAL, + cmd, PORT_IRQ_TF_ERR); + } +- goto handle_tfe_exit; ++ return; + } + + /* clear the tag accumulator */ +@@ -701,7 +701,7 @@ static void mtip_handle_tfe(struct drive + fail_reason = "thermal shutdown"; + } + if (buf[288] == 0xBF) { +- set_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag); ++ set_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag); + dev_info(&dd->pdev->dev, + "Drive indicates rebuild has failed. Secure erase required.\n"); + fail_all_ncq_cmds = 1; +@@ -771,11 +771,6 @@ static void mtip_handle_tfe(struct drive + } + } + print_tags(dd, "reissued (TFE)", tagaccum, cmd_cnt); +- +-handle_tfe_exit: +- /* clear eh_active */ +- clear_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags); +- wake_up_interruptible(&port->svc_wait); + } + + /* +@@ -1007,6 +1002,7 @@ static bool mtip_pause_ncq(struct mtip_p + (fis->features == 0x27 || fis->features == 0x72 || + fis->features == 0x62 || fis->features == 0x26))) { + clear_bit(MTIP_DDF_SEC_LOCK_BIT, &port->dd->dd_flag); ++ clear_bit(MTIP_DDF_REBUILD_FAILED_BIT, &port->dd->dd_flag); + /* Com reset after secure erase or lowlevel format */ + mtip_restart_port(port); + clear_bit(MTIP_PF_SE_ACTIVE_BIT, &port->flags); +@@ -1021,12 +1017,14 @@ static bool mtip_pause_ncq(struct mtip_p + * + * @port Pointer to port data structure + * @timeout Max duration to wait (ms) ++ * @atomic gfp_t flag to indicate blockable context or not + * + * return value + * 0 Success + * -EBUSY Commands still active + */ +-static int mtip_quiesce_io(struct mtip_port *port, unsigned long timeout) ++static int mtip_quiesce_io(struct mtip_port *port, unsigned long timeout, ++ gfp_t atomic) + { + unsigned long to; + unsigned int n; +@@ -1037,16 +1035,21 @@ static int mtip_quiesce_io(struct mtip_p + to = jiffies + msecs_to_jiffies(timeout); + do { + if (test_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags) && +- test_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags)) { ++ test_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags) && ++ atomic == GFP_KERNEL) { + msleep(20); + continue; /* svc thd is actively issuing commands */ + } + +- msleep(100); ++ if (atomic == GFP_KERNEL) ++ msleep(100); ++ else { ++ cpu_relax(); ++ udelay(100); ++ } ++ + if (mtip_check_surprise_removal(port->dd->pdev)) + goto err_fault; +- if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &port->dd->dd_flag)) +- goto err_fault; + + /* + * Ignore s_active bit 0 of array element 0. +@@ -1099,6 +1102,7 @@ static int mtip_exec_internal_command(st + struct mtip_cmd *int_cmd; + struct driver_data *dd = port->dd; + int rv = 0; ++ unsigned long start; + + /* Make sure the buffer is 8 byte aligned. This is asic specific. */ + if (buffer & 0x00000007) { +@@ -1107,6 +1111,10 @@ static int mtip_exec_internal_command(st + } + + int_cmd = mtip_get_int_command(dd); ++ if (!int_cmd) { ++ dbg_printk(MTIP_DRV_NAME "Unable to allocate tag for PIO cmd\n"); ++ return -EFAULT; ++ } + + set_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags); + +@@ -1119,7 +1127,7 @@ static int mtip_exec_internal_command(st + if (fis->command != ATA_CMD_STANDBYNOW1) { + /* wait for io to complete if non atomic */ + if (mtip_quiesce_io(port, +- MTIP_QUIESCE_IO_TIMEOUT_MS) < 0) { ++ MTIP_QUIESCE_IO_TIMEOUT_MS, atomic) < 0) { + dev_warn(&dd->pdev->dev, + "Failed to quiesce IO\n"); + mtip_put_int_command(dd, int_cmd); +@@ -1162,6 +1170,8 @@ static int mtip_exec_internal_command(st + /* Populate the command header */ + int_cmd->command_header->byte_count = 0; + ++ start = jiffies; ++ + /* Issue the command to the hardware */ + mtip_issue_non_ncq_command(port, MTIP_TAG_INTERNAL); + +@@ -1170,10 +1180,12 @@ static int mtip_exec_internal_command(st + if ((rv = wait_for_completion_interruptible_timeout( + &wait, + msecs_to_jiffies(timeout))) <= 0) { ++ + if (rv == -ERESTARTSYS) { /* interrupted */ + dev_err(&dd->pdev->dev, +- "Internal command [%02X] was interrupted after %lu ms\n", +- fis->command, timeout); ++ "Internal command [%02X] was interrupted after %u ms\n", ++ fis->command, ++ jiffies_to_msecs(jiffies - start)); + rv = -EINTR; + goto exec_ic_exit; + } else if (rv == 0) /* timeout */ +@@ -2897,6 +2909,42 @@ static int mtip_ftl_rebuild_poll(struct + return -EFAULT; + } + ++static void mtip_softirq_done_fn(struct request *rq) ++{ ++ struct mtip_cmd *cmd = blk_mq_rq_to_pdu(rq); ++ struct driver_data *dd = rq->q->queuedata; ++ ++ /* Unmap the DMA scatter list entries */ ++ dma_unmap_sg(&dd->pdev->dev, cmd->sg, cmd->scatter_ents, ++ cmd->direction); ++ ++ if (unlikely(cmd->unaligned)) ++ up(&dd->port->cmd_slot_unal); ++ ++ blk_mq_end_request(rq, rq->errors); ++} ++ ++static void mtip_abort_cmd(struct request *req, void *data, ++ bool reserved) ++{ ++ struct driver_data *dd = data; ++ ++ dbg_printk(MTIP_DRV_NAME " Aborting request, tag = %d\n", req->tag); ++ ++ clear_bit(req->tag, dd->port->cmds_to_issue); ++ req->errors = -EIO; ++ mtip_softirq_done_fn(req); ++} ++ ++static void mtip_queue_cmd(struct request *req, void *data, ++ bool reserved) ++{ ++ struct driver_data *dd = data; ++ ++ set_bit(req->tag, dd->port->cmds_to_issue); ++ blk_abort_request(req); ++} ++ + /* + * service thread to issue queued commands + * +@@ -2909,7 +2957,7 @@ static int mtip_ftl_rebuild_poll(struct + static int mtip_service_thread(void *data) + { + struct driver_data *dd = (struct driver_data *)data; +- unsigned long slot, slot_start, slot_wrap; ++ unsigned long slot, slot_start, slot_wrap, to; + unsigned int num_cmd_slots = dd->slot_groups * 32; + struct mtip_port *port = dd->port; + +@@ -2924,9 +2972,7 @@ static int mtip_service_thread(void *dat + * is in progress nor error handling is active + */ + wait_event_interruptible(port->svc_wait, (port->flags) && +- !(port->flags & MTIP_PF_PAUSE_IO)); +- +- set_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags); ++ (port->flags & MTIP_PF_SVC_THD_WORK)); + + if (kthread_should_stop() || + test_bit(MTIP_PF_SVC_THD_STOP_BIT, &port->flags)) +@@ -2936,6 +2982,8 @@ static int mtip_service_thread(void *dat + &dd->dd_flag))) + goto st_out; + ++ set_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags); ++ + restart_eh: + /* Demux bits: start with error handling */ + if (test_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags)) { +@@ -2946,6 +2994,32 @@ restart_eh: + if (test_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags)) + goto restart_eh; + ++ if (test_bit(MTIP_PF_TO_ACTIVE_BIT, &port->flags)) { ++ to = jiffies + msecs_to_jiffies(5000); ++ ++ do { ++ mdelay(100); ++ } while (atomic_read(&dd->irq_workers_active) != 0 && ++ time_before(jiffies, to)); ++ ++ if (atomic_read(&dd->irq_workers_active) != 0) ++ dev_warn(&dd->pdev->dev, ++ "Completion workers still active!"); ++ ++ spin_lock(dd->queue->queue_lock); ++ blk_mq_all_tag_busy_iter(*dd->tags.tags, ++ mtip_queue_cmd, dd); ++ spin_unlock(dd->queue->queue_lock); ++ ++ set_bit(MTIP_PF_ISSUE_CMDS_BIT, &dd->port->flags); ++ ++ if (mtip_device_reset(dd)) ++ blk_mq_all_tag_busy_iter(*dd->tags.tags, ++ mtip_abort_cmd, dd); ++ ++ clear_bit(MTIP_PF_TO_ACTIVE_BIT, &dd->port->flags); ++ } ++ + if (test_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags)) { + slot = 1; + /* used to restrict the loop to one iteration */ +@@ -2978,10 +3052,8 @@ restart_eh: + } + + if (test_bit(MTIP_PF_REBUILD_BIT, &port->flags)) { +- if (mtip_ftl_rebuild_poll(dd) < 0) +- set_bit(MTIP_DDF_REBUILD_FAILED_BIT, +- &dd->dd_flag); +- clear_bit(MTIP_PF_REBUILD_BIT, &port->flags); ++ if (mtip_ftl_rebuild_poll(dd) == 0) ++ clear_bit(MTIP_PF_REBUILD_BIT, &port->flags); + } + } + +@@ -3096,7 +3168,7 @@ static int mtip_hw_get_identify(struct d + if (buf[288] == 0xBF) { + dev_info(&dd->pdev->dev, + "Drive indicates rebuild has failed.\n"); +- /* TODO */ ++ set_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag); + } + } + +@@ -3270,20 +3342,25 @@ out1: + return rv; + } + +-static void mtip_standby_drive(struct driver_data *dd) ++static int mtip_standby_drive(struct driver_data *dd) + { +- if (dd->sr) +- return; ++ int rv = 0; + ++ if (dd->sr || !dd->port) ++ return -ENODEV; + /* + * Send standby immediate (E0h) to the drive so that it + * saves its state. + */ + if (!test_bit(MTIP_PF_REBUILD_BIT, &dd->port->flags) && +- !test_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag)) +- if (mtip_standby_immediate(dd->port)) ++ !test_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag) && ++ !test_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag)) { ++ rv = mtip_standby_immediate(dd->port); ++ if (rv) + dev_warn(&dd->pdev->dev, + "STANDBY IMMEDIATE failed\n"); ++ } ++ return rv; + } + + /* +@@ -3296,10 +3373,6 @@ static void mtip_standby_drive(struct dr + */ + static int mtip_hw_exit(struct driver_data *dd) + { +- /* +- * Send standby immediate (E0h) to the drive so that it +- * saves its state. +- */ + if (!dd->sr) { + /* de-initialize the port. */ + mtip_deinit_port(dd->port); +@@ -3341,8 +3414,7 @@ static int mtip_hw_shutdown(struct drive + * Send standby immediate (E0h) to the drive so that it + * saves its state. + */ +- if (!dd->sr && dd->port) +- mtip_standby_immediate(dd->port); ++ mtip_standby_drive(dd); + + return 0; + } +@@ -3365,7 +3437,7 @@ static int mtip_hw_suspend(struct driver + * Send standby immediate (E0h) to the drive + * so that it saves its state. + */ +- if (mtip_standby_immediate(dd->port) != 0) { ++ if (mtip_standby_drive(dd) != 0) { + dev_err(&dd->pdev->dev, + "Failed standby-immediate command\n"); + return -EFAULT; +@@ -3603,6 +3675,28 @@ static int mtip_block_getgeo(struct bloc + return 0; + } + ++static int mtip_block_open(struct block_device *dev, fmode_t mode) ++{ ++ struct driver_data *dd; ++ ++ if (dev && dev->bd_disk) { ++ dd = (struct driver_data *) dev->bd_disk->private_data; ++ ++ if (dd) { ++ if (test_bit(MTIP_DDF_REMOVAL_BIT, ++ &dd->dd_flag)) { ++ return -ENODEV; ++ } ++ return 0; ++ } ++ } ++ return -ENODEV; ++} ++ ++void mtip_block_release(struct gendisk *disk, fmode_t mode) ++{ ++} ++ + /* + * Block device operation function. + * +@@ -3610,6 +3704,8 @@ static int mtip_block_getgeo(struct bloc + * layer. + */ + static const struct block_device_operations mtip_block_ops = { ++ .open = mtip_block_open, ++ .release = mtip_block_release, + .ioctl = mtip_block_ioctl, + #ifdef CONFIG_COMPAT + .compat_ioctl = mtip_block_compat_ioctl, +@@ -3671,10 +3767,9 @@ static int mtip_submit_request(struct bl + rq_data_dir(rq))) { + return -ENODATA; + } +- if (unlikely(test_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag))) ++ if (unlikely(test_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag) || ++ test_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag))) + return -ENODATA; +- if (test_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag)) +- return -ENXIO; + } + + if (rq->cmd_flags & REQ_DISCARD) { +@@ -3786,11 +3881,33 @@ static int mtip_init_cmd(void *data, str + return 0; + } + ++static enum blk_eh_timer_return mtip_cmd_timeout(struct request *req, ++ bool reserved) ++{ ++ struct driver_data *dd = req->q->queuedata; ++ int ret = BLK_EH_RESET_TIMER; ++ ++ if (reserved) ++ goto exit_handler; ++ ++ if (test_bit(req->tag, dd->port->cmds_to_issue)) ++ goto exit_handler; ++ ++ if (test_and_set_bit(MTIP_PF_TO_ACTIVE_BIT, &dd->port->flags)) ++ goto exit_handler; ++ ++ wake_up_interruptible(&dd->port->svc_wait); ++exit_handler: ++ return ret; ++} ++ + static struct blk_mq_ops mtip_mq_ops = { + .queue_rq = mtip_queue_rq, + .map_queue = blk_mq_map_queue, + .init_request = mtip_init_cmd, + .exit_request = mtip_free_cmd, ++ .complete = mtip_softirq_done_fn, ++ .timeout = mtip_cmd_timeout, + }; + + /* +@@ -3857,7 +3974,6 @@ static int mtip_block_initialize(struct + + mtip_hw_debugfs_init(dd); + +-skip_create_disk: + memset(&dd->tags, 0, sizeof(dd->tags)); + dd->tags.ops = &mtip_mq_ops; + dd->tags.nr_hw_queues = 1; +@@ -3867,12 +3983,13 @@ skip_create_disk: + dd->tags.numa_node = dd->numa_node; + dd->tags.flags = BLK_MQ_F_SHOULD_MERGE; + dd->tags.driver_data = dd; ++ dd->tags.timeout = MTIP_NCQ_CMD_TIMEOUT_MS; + + rv = blk_mq_alloc_tag_set(&dd->tags); + if (rv) { + dev_err(&dd->pdev->dev, + "Unable to allocate request queue\n"); +- goto block_queue_alloc_init_error; ++ goto block_queue_alloc_tag_error; + } + + /* Allocate the request queue. */ +@@ -3887,6 +4004,7 @@ skip_create_disk: + dd->disk->queue = dd->queue; + dd->queue->queuedata = dd; + ++skip_create_disk: + /* Initialize the protocol layer. */ + wait_for_rebuild = mtip_hw_get_identify(dd); + if (wait_for_rebuild < 0) { +@@ -3983,8 +4101,9 @@ kthread_run_error: + read_capacity_error: + init_hw_cmds_error: + blk_cleanup_queue(dd->queue); +- blk_mq_free_tag_set(&dd->tags); + block_queue_alloc_init_error: ++ blk_mq_free_tag_set(&dd->tags); ++block_queue_alloc_tag_error: + mtip_hw_debugfs_exit(dd); + disk_index_error: + spin_lock(&rssd_index_lock); +@@ -4001,6 +4120,22 @@ protocol_init_error: + return rv; + } + ++static void mtip_no_dev_cleanup(struct request *rq, void *data, bool reserv) ++{ ++ struct driver_data *dd = (struct driver_data *)data; ++ struct mtip_cmd *cmd; ++ ++ if (likely(!reserv)) ++ blk_mq_complete_request(rq, -ENODEV); ++ else if (test_bit(MTIP_PF_IC_ACTIVE_BIT, &dd->port->flags)) { ++ ++ cmd = mtip_cmd_from_tag(dd, MTIP_TAG_INTERNAL); ++ if (cmd->comp_func) ++ cmd->comp_func(dd->port, MTIP_TAG_INTERNAL, ++ cmd, -ENODEV); ++ } ++} ++ + /* + * Block layer deinitialization function. + * +@@ -4032,12 +4167,23 @@ static int mtip_block_remove(struct driv + } + } + +- if (!dd->sr) +- mtip_standby_drive(dd); ++ if (!dd->sr) { ++ /* ++ * Explicitly wait here for IOs to quiesce, ++ * as mtip_standby_drive usually won't wait for IOs. ++ */ ++ if (!mtip_quiesce_io(dd->port, MTIP_QUIESCE_IO_TIMEOUT_MS, ++ GFP_KERNEL)) ++ mtip_standby_drive(dd); ++ } + else + dev_info(&dd->pdev->dev, "device %s surprise removal\n", + dd->disk->disk_name); + ++ blk_mq_freeze_queue_start(dd->queue); ++ blk_mq_stop_hw_queues(dd->queue); ++ blk_mq_all_tag_busy_iter(dd->tags.tags[0], mtip_no_dev_cleanup, dd); ++ + /* + * Delete our gendisk structure. This also removes the device + * from /dev +@@ -4047,7 +4193,8 @@ static int mtip_block_remove(struct driv + dd->bdev = NULL; + } + if (dd->disk) { +- del_gendisk(dd->disk); ++ if (test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag)) ++ del_gendisk(dd->disk); + if (dd->disk->queue) { + blk_cleanup_queue(dd->queue); + blk_mq_free_tag_set(&dd->tags); +@@ -4088,7 +4235,8 @@ static int mtip_block_shutdown(struct dr + dev_info(&dd->pdev->dev, + "Shutting down %s ...\n", dd->disk->disk_name); + +- del_gendisk(dd->disk); ++ if (test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag)) ++ del_gendisk(dd->disk); + if (dd->disk->queue) { + blk_cleanup_queue(dd->queue); + blk_mq_free_tag_set(&dd->tags); +@@ -4433,7 +4581,7 @@ static void mtip_pci_remove(struct pci_d + struct driver_data *dd = pci_get_drvdata(pdev); + unsigned long flags, to; + +- set_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag); ++ set_bit(MTIP_DDF_REMOVAL_BIT, &dd->dd_flag); + + spin_lock_irqsave(&dev_lock, flags); + list_del_init(&dd->online_list); +@@ -4450,12 +4598,17 @@ static void mtip_pci_remove(struct pci_d + } while (atomic_read(&dd->irq_workers_active) != 0 && + time_before(jiffies, to)); + ++ if (!dd->sr) ++ fsync_bdev(dd->bdev); ++ + if (atomic_read(&dd->irq_workers_active) != 0) { + dev_warn(&dd->pdev->dev, + "Completion workers still active!\n"); + } + +- blk_mq_stop_hw_queues(dd->queue); ++ blk_set_queue_dying(dd->queue); ++ set_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag); ++ + /* Clean up the block layer. */ + mtip_block_remove(dd); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/mtip32xx/mtip32xx.h linux-libre-4.4.7-gnu/drivers/block/mtip32xx/mtip32xx.h +--- linux-libre-4.4-gnu/drivers/block/mtip32xx/mtip32xx.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/block/mtip32xx/mtip32xx.h 2016-04-12 12:09:26.000000000 -0400 +@@ -134,16 +134,24 @@ enum { + MTIP_PF_EH_ACTIVE_BIT = 1, /* error handling */ + MTIP_PF_SE_ACTIVE_BIT = 2, /* secure erase */ + MTIP_PF_DM_ACTIVE_BIT = 3, /* download microcde */ ++ MTIP_PF_TO_ACTIVE_BIT = 9, /* timeout handling */ + MTIP_PF_PAUSE_IO = ((1 << MTIP_PF_IC_ACTIVE_BIT) | + (1 << MTIP_PF_EH_ACTIVE_BIT) | + (1 << MTIP_PF_SE_ACTIVE_BIT) | +- (1 << MTIP_PF_DM_ACTIVE_BIT)), ++ (1 << MTIP_PF_DM_ACTIVE_BIT) | ++ (1 << MTIP_PF_TO_ACTIVE_BIT)), + + MTIP_PF_SVC_THD_ACTIVE_BIT = 4, + MTIP_PF_ISSUE_CMDS_BIT = 5, + MTIP_PF_REBUILD_BIT = 6, + MTIP_PF_SVC_THD_STOP_BIT = 8, + ++ MTIP_PF_SVC_THD_WORK = ((1 << MTIP_PF_EH_ACTIVE_BIT) | ++ (1 << MTIP_PF_ISSUE_CMDS_BIT) | ++ (1 << MTIP_PF_REBUILD_BIT) | ++ (1 << MTIP_PF_SVC_THD_STOP_BIT) | ++ (1 << MTIP_PF_TO_ACTIVE_BIT)), ++ + /* below are bit numbers in 'dd_flag' defined in driver_data */ + MTIP_DDF_SEC_LOCK_BIT = 0, + MTIP_DDF_REMOVE_PENDING_BIT = 1, +@@ -153,6 +161,7 @@ enum { + MTIP_DDF_RESUME_BIT = 6, + MTIP_DDF_INIT_DONE_BIT = 7, + MTIP_DDF_REBUILD_FAILED_BIT = 8, ++ MTIP_DDF_REMOVAL_BIT = 9, + + MTIP_DDF_STOP_IO = ((1 << MTIP_DDF_REMOVE_PENDING_BIT) | + (1 << MTIP_DDF_SEC_LOCK_BIT) | +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/zram/zcomp.c linux-libre-4.4.7-gnu/drivers/block/zram/zcomp.c +--- linux-libre-4.4-gnu/drivers/block/zram/zcomp.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/block/zram/zcomp.c 2016-04-12 12:09:26.000000000 -0400 +@@ -76,7 +76,7 @@ static void zcomp_strm_free(struct zcomp + */ + static struct zcomp_strm *zcomp_strm_alloc(struct zcomp *comp) + { +- struct zcomp_strm *zstrm = kmalloc(sizeof(*zstrm), GFP_KERNEL); ++ struct zcomp_strm *zstrm = kmalloc(sizeof(*zstrm), GFP_NOIO); + if (!zstrm) + return NULL; + +@@ -85,7 +85,7 @@ static struct zcomp_strm *zcomp_strm_all + * allocate 2 pages. 1 for compressed data, plus 1 extra for the + * case when compressed size is larger than the original one + */ +- zstrm->buffer = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, 1); ++ zstrm->buffer = (void *)__get_free_pages(GFP_NOIO | __GFP_ZERO, 1); + if (!zstrm->private || !zstrm->buffer) { + zcomp_strm_free(comp, zstrm); + zstrm = NULL; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/zram/zcomp_lz4.c linux-libre-4.4.7-gnu/drivers/block/zram/zcomp_lz4.c +--- linux-libre-4.4-gnu/drivers/block/zram/zcomp_lz4.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/block/zram/zcomp_lz4.c 2016-04-12 12:09:26.000000000 -0400 +@@ -10,17 +10,36 @@ + #include <linux/kernel.h> + #include <linux/slab.h> + #include <linux/lz4.h> ++#include <linux/vmalloc.h> ++#include <linux/mm.h> + + #include "zcomp_lz4.h" + + static void *zcomp_lz4_create(void) + { +- return kzalloc(LZ4_MEM_COMPRESS, GFP_KERNEL); ++ void *ret; ++ ++ /* ++ * This function can be called in swapout/fs write path ++ * so we can't use GFP_FS|IO. And it assumes we already ++ * have at least one stream in zram initialization so we ++ * don't do best effort to allocate more stream in here. ++ * A default stream will work well without further multiple ++ * streams. That's why we use NORETRY | NOWARN. ++ */ ++ ret = kzalloc(LZ4_MEM_COMPRESS, GFP_NOIO | __GFP_NORETRY | ++ __GFP_NOWARN); ++ if (!ret) ++ ret = __vmalloc(LZ4_MEM_COMPRESS, ++ GFP_NOIO | __GFP_NORETRY | __GFP_NOWARN | ++ __GFP_ZERO | __GFP_HIGHMEM, ++ PAGE_KERNEL); ++ return ret; + } + + static void zcomp_lz4_destroy(void *private) + { +- kfree(private); ++ kvfree(private); + } + + static int zcomp_lz4_compress(const unsigned char *src, unsigned char *dst, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/zram/zcomp_lzo.c linux-libre-4.4.7-gnu/drivers/block/zram/zcomp_lzo.c +--- linux-libre-4.4-gnu/drivers/block/zram/zcomp_lzo.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/block/zram/zcomp_lzo.c 2016-04-12 12:09:26.000000000 -0400 +@@ -10,17 +10,36 @@ + #include <linux/kernel.h> + #include <linux/slab.h> + #include <linux/lzo.h> ++#include <linux/vmalloc.h> ++#include <linux/mm.h> + + #include "zcomp_lzo.h" + + static void *lzo_create(void) + { +- return kzalloc(LZO1X_MEM_COMPRESS, GFP_KERNEL); ++ void *ret; ++ ++ /* ++ * This function can be called in swapout/fs write path ++ * so we can't use GFP_FS|IO. And it assumes we already ++ * have at least one stream in zram initialization so we ++ * don't do best effort to allocate more stream in here. ++ * A default stream will work well without further multiple ++ * streams. That's why we use NORETRY | NOWARN. ++ */ ++ ret = kzalloc(LZO1X_MEM_COMPRESS, GFP_NOIO | __GFP_NORETRY | ++ __GFP_NOWARN); ++ if (!ret) ++ ret = __vmalloc(LZO1X_MEM_COMPRESS, ++ GFP_NOIO | __GFP_NORETRY | __GFP_NOWARN | ++ __GFP_ZERO | __GFP_HIGHMEM, ++ PAGE_KERNEL); ++ return ret; + } + + static void lzo_destroy(void *private) + { +- kfree(private); ++ kvfree(private); + } + + static int lzo_compress(const unsigned char *src, unsigned char *dst, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/zram/zram_drv.c linux-libre-4.4.7-gnu/drivers/block/zram/zram_drv.c +--- linux-libre-4.4-gnu/drivers/block/zram/zram_drv.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/block/zram/zram_drv.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1325,7 +1325,6 @@ static int zram_remove(struct zram *zram + + pr_info("Removed device: %s\n", zram->disk->disk_name); + +- idr_remove(&zram_index_idr, zram->disk->first_minor); + blk_cleanup_queue(zram->disk->queue); + del_gendisk(zram->disk); + put_disk(zram->disk); +@@ -1367,10 +1366,12 @@ static ssize_t hot_remove_store(struct c + mutex_lock(&zram_index_mutex); + + zram = idr_find(&zram_index_idr, dev_id); +- if (zram) ++ if (zram) { + ret = zram_remove(zram); +- else ++ idr_remove(&zram_index_idr, dev_id); ++ } else { + ret = -ENODEV; ++ } + + mutex_unlock(&zram_index_mutex); + return ret ? ret : count; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/bluetooth/ath3k.c linux-libre-4.4.7-gnu/drivers/bluetooth/ath3k.c +--- linux-libre-4.4-gnu/drivers/bluetooth/ath3k.c 2016-01-10 21:11:47.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/bluetooth/ath3k.c 2016-04-12 21:28:07.000000000 -0400 +@@ -82,6 +82,7 @@ static const struct usb_device_id ath3k_ + { USB_DEVICE(0x0489, 0xe05f) }, + { USB_DEVICE(0x0489, 0xe076) }, + { USB_DEVICE(0x0489, 0xe078) }, ++ { USB_DEVICE(0x0489, 0xe095) }, + { USB_DEVICE(0x04c5, 0x1330) }, + { USB_DEVICE(0x04CA, 0x3004) }, + { USB_DEVICE(0x04CA, 0x3005) }, +@@ -92,6 +93,7 @@ static const struct usb_device_id ath3k_ + { USB_DEVICE(0x04CA, 0x300d) }, + { USB_DEVICE(0x04CA, 0x300f) }, + { USB_DEVICE(0x04CA, 0x3010) }, ++ { USB_DEVICE(0x04CA, 0x3014) }, + { USB_DEVICE(0x0930, 0x0219) }, + { USB_DEVICE(0x0930, 0x021c) }, + { USB_DEVICE(0x0930, 0x0220) }, +@@ -113,10 +115,12 @@ static const struct usb_device_id ath3k_ + { USB_DEVICE(0x13d3, 0x3362) }, + { USB_DEVICE(0x13d3, 0x3375) }, + { USB_DEVICE(0x13d3, 0x3393) }, ++ { USB_DEVICE(0x13d3, 0x3395) }, + { USB_DEVICE(0x13d3, 0x3402) }, + { USB_DEVICE(0x13d3, 0x3408) }, + { USB_DEVICE(0x13d3, 0x3423) }, + { USB_DEVICE(0x13d3, 0x3432) }, ++ { USB_DEVICE(0x13d3, 0x3472) }, + { USB_DEVICE(0x13d3, 0x3474) }, + + /* Atheros AR5BBU12 with sflash firmware */ +@@ -144,6 +148,7 @@ static const struct usb_device_id ath3k_ + { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, ++ { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, +@@ -154,6 +159,7 @@ static const struct usb_device_id ath3k_ + { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, ++ { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, +@@ -175,10 +181,12 @@ static const struct usb_device_id ath3k_ + { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, ++ { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, ++ { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, + + /* Atheros AR5BBU22 with sflash firmware */ +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/bluetooth/btusb.c linux-libre-4.4.7-gnu/drivers/bluetooth/btusb.c +--- linux-libre-4.4-gnu/drivers/bluetooth/btusb.c 2016-01-10 21:12:01.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/bluetooth/btusb.c 2016-04-12 21:28:21.000000000 -0400 +@@ -153,6 +153,10 @@ static const struct usb_device_id btusb_ + { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), + .driver_info = BTUSB_BCM_PATCHRAM }, + ++ /* Toshiba Corp - Broadcom based */ ++ { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), ++ .driver_info = BTUSB_BCM_PATCHRAM }, ++ + /* Intel Bluetooth USB Bootloader (RAM module) */ + { USB_DEVICE(0x8087, 0x0a5a), + .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, +@@ -192,6 +196,7 @@ static const struct usb_device_id blackl + { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, ++ { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, +@@ -202,6 +207,7 @@ static const struct usb_device_id blackl + { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, ++ { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, +@@ -223,10 +229,12 @@ static const struct usb_device_id blackl + { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, ++ { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, ++ { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, + + /* Atheros AR5BBU12 with sflash firmware */ +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm-chip.c linux-libre-4.4.7-gnu/drivers/char/tpm/tpm-chip.c +--- linux-libre-4.4-gnu/drivers/char/tpm/tpm-chip.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/char/tpm/tpm-chip.c 2016-04-12 12:09:26.000000000 -0400 +@@ -136,11 +136,13 @@ struct tpm_chip *tpmm_chip_alloc(struct + chip->cdev.owner = chip->pdev->driver->owner; + chip->cdev.kobj.parent = &chip->dev.kobj; + ++ devm_add_action(dev, (void (*)(void *)) put_device, &chip->dev); ++ + return chip; + } + EXPORT_SYMBOL_GPL(tpmm_chip_alloc); + +-static int tpm_dev_add_device(struct tpm_chip *chip) ++static int tpm_add_char_device(struct tpm_chip *chip) + { + int rc; + +@@ -151,7 +153,6 @@ static int tpm_dev_add_device(struct tpm + chip->devname, MAJOR(chip->dev.devt), + MINOR(chip->dev.devt), rc); + +- device_unregister(&chip->dev); + return rc; + } + +@@ -162,16 +163,17 @@ static int tpm_dev_add_device(struct tpm + chip->devname, MAJOR(chip->dev.devt), + MINOR(chip->dev.devt), rc); + ++ cdev_del(&chip->cdev); + return rc; + } + + return rc; + } + +-static void tpm_dev_del_device(struct tpm_chip *chip) ++static void tpm_del_char_device(struct tpm_chip *chip) + { + cdev_del(&chip->cdev); +- device_unregister(&chip->dev); ++ device_del(&chip->dev); + } + + static int tpm1_chip_register(struct tpm_chip *chip) +@@ -222,7 +224,7 @@ int tpm_chip_register(struct tpm_chip *c + + tpm_add_ppi(chip); + +- rc = tpm_dev_add_device(chip); ++ rc = tpm_add_char_device(chip); + if (rc) + goto out_err; + +@@ -274,6 +276,6 @@ void tpm_chip_unregister(struct tpm_chip + sysfs_remove_link(&chip->pdev->kobj, "ppi"); + + tpm1_chip_unregister(chip); +- tpm_dev_del_device(chip); ++ tpm_del_char_device(chip); + } + EXPORT_SYMBOL_GPL(tpm_chip_unregister); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm_crb.c linux-libre-4.4.7-gnu/drivers/char/tpm/tpm_crb.c +--- linux-libre-4.4-gnu/drivers/char/tpm/tpm_crb.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/char/tpm/tpm_crb.c 2016-04-12 12:09:26.000000000 -0400 +@@ -310,11 +310,11 @@ static int crb_acpi_remove(struct acpi_d + struct device *dev = &device->dev; + struct tpm_chip *chip = dev_get_drvdata(dev); + +- tpm_chip_unregister(chip); +- + if (chip->flags & TPM_CHIP_FLAG_TPM2) + tpm2_shutdown(chip, TPM2_SU_CLEAR); + ++ tpm_chip_unregister(chip); ++ + return 0; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm_eventlog.c linux-libre-4.4.7-gnu/drivers/char/tpm/tpm_eventlog.c +--- linux-libre-4.4-gnu/drivers/char/tpm/tpm_eventlog.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/char/tpm/tpm_eventlog.c 2016-04-12 12:09:26.000000000 -0400 +@@ -232,7 +232,7 @@ static int tpm_binary_bios_measurements_ + { + struct tcpa_event *event = v; + struct tcpa_event temp_event; +- char *tempPtr; ++ char *temp_ptr; + int i; + + memcpy(&temp_event, event, sizeof(struct tcpa_event)); +@@ -242,10 +242,16 @@ static int tpm_binary_bios_measurements_ + temp_event.event_type = do_endian_conversion(event->event_type); + temp_event.event_size = do_endian_conversion(event->event_size); + +- tempPtr = (char *)&temp_event; ++ temp_ptr = (char *) &temp_event; + +- for (i = 0; i < sizeof(struct tcpa_event) + temp_event.event_size; i++) +- seq_putc(m, tempPtr[i]); ++ for (i = 0; i < (sizeof(struct tcpa_event) - 1) ; i++) ++ seq_putc(m, temp_ptr[i]); ++ ++ temp_ptr = (char *) v; ++ ++ for (i = (sizeof(struct tcpa_event) - 1); ++ i < (sizeof(struct tcpa_event) + temp_event.event_size); i++) ++ seq_putc(m, temp_ptr[i]); + + return 0; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/bcm/clk-bcm2835.c linux-libre-4.4.7-gnu/drivers/clk/bcm/clk-bcm2835.c +--- linux-libre-4.4-gnu/drivers/clk/bcm/clk-bcm2835.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/clk/bcm/clk-bcm2835.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1097,13 +1097,15 @@ static int bcm2835_pll_divider_set_rate( + struct bcm2835_pll_divider *divider = bcm2835_pll_divider_from_hw(hw); + struct bcm2835_cprman *cprman = divider->cprman; + const struct bcm2835_pll_divider_data *data = divider->data; +- u32 cm; +- int ret; ++ u32 cm, div, max_div = 1 << A2W_PLL_DIV_BITS; + +- ret = clk_divider_ops.set_rate(hw, rate, parent_rate); +- if (ret) +- return ret; ++ div = DIV_ROUND_UP_ULL(parent_rate, rate); ++ ++ div = min(div, max_div); ++ if (div == max_div) ++ div = 0; + ++ cprman_write(cprman, data->a2w_reg, div); + cm = cprman_read(cprman, data->cm_reg); + cprman_write(cprman, data->cm_reg, cm | data->load_mask); + cprman_write(cprman, data->cm_reg, cm & ~data->load_mask); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/rockchip/clk-rk3188.c linux-libre-4.4.7-gnu/drivers/clk/rockchip/clk-rk3188.c +--- linux-libre-4.4-gnu/drivers/clk/rockchip/clk-rk3188.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/clk/rockchip/clk-rk3188.c 2016-04-12 12:09:26.000000000 -0400 +@@ -718,6 +718,7 @@ static const char *const rk3188_critical + "hclk_peri", + "pclk_cpu", + "pclk_peri", ++ "hclk_cpubus" + }; + + static void __init rk3188_common_clk_init(struct device_node *np) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/rockchip/clk-rk3368.c linux-libre-4.4.7-gnu/drivers/clk/rockchip/clk-rk3368.c +--- linux-libre-4.4-gnu/drivers/clk/rockchip/clk-rk3368.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/clk/rockchip/clk-rk3368.c 2016-04-12 12:09:26.000000000 -0400 +@@ -165,7 +165,7 @@ static const struct rockchip_cpuclk_reg_ + .core_reg = RK3368_CLKSEL_CON(0), + .div_core_shift = 0, + .div_core_mask = 0x1f, +- .mux_core_shift = 15, ++ .mux_core_shift = 7, + }; + + static const struct rockchip_cpuclk_reg_data rk3368_cpuclkl_data = { +@@ -218,29 +218,29 @@ static const struct rockchip_cpuclk_reg_ + } + + static struct rockchip_cpuclk_rate_table rk3368_cpuclkb_rates[] __initdata = { +- RK3368_CPUCLKB_RATE(1512000000, 2, 6, 6), +- RK3368_CPUCLKB_RATE(1488000000, 2, 5, 5), +- RK3368_CPUCLKB_RATE(1416000000, 2, 5, 5), +- RK3368_CPUCLKB_RATE(1200000000, 2, 4, 4), +- RK3368_CPUCLKB_RATE(1008000000, 2, 4, 4), +- RK3368_CPUCLKB_RATE( 816000000, 2, 3, 3), +- RK3368_CPUCLKB_RATE( 696000000, 2, 3, 3), +- RK3368_CPUCLKB_RATE( 600000000, 2, 2, 2), +- RK3368_CPUCLKB_RATE( 408000000, 2, 2, 2), +- RK3368_CPUCLKB_RATE( 312000000, 2, 2, 2), ++ RK3368_CPUCLKB_RATE(1512000000, 1, 5, 5), ++ RK3368_CPUCLKB_RATE(1488000000, 1, 4, 4), ++ RK3368_CPUCLKB_RATE(1416000000, 1, 4, 4), ++ RK3368_CPUCLKB_RATE(1200000000, 1, 3, 3), ++ RK3368_CPUCLKB_RATE(1008000000, 1, 3, 3), ++ RK3368_CPUCLKB_RATE( 816000000, 1, 2, 2), ++ RK3368_CPUCLKB_RATE( 696000000, 1, 2, 2), ++ RK3368_CPUCLKB_RATE( 600000000, 1, 1, 1), ++ RK3368_CPUCLKB_RATE( 408000000, 1, 1, 1), ++ RK3368_CPUCLKB_RATE( 312000000, 1, 1, 1), + }; + + static struct rockchip_cpuclk_rate_table rk3368_cpuclkl_rates[] __initdata = { +- RK3368_CPUCLKL_RATE(1512000000, 2, 7, 7), +- RK3368_CPUCLKL_RATE(1488000000, 2, 6, 6), +- RK3368_CPUCLKL_RATE(1416000000, 2, 6, 6), +- RK3368_CPUCLKL_RATE(1200000000, 2, 5, 5), +- RK3368_CPUCLKL_RATE(1008000000, 2, 5, 5), +- RK3368_CPUCLKL_RATE( 816000000, 2, 4, 4), +- RK3368_CPUCLKL_RATE( 696000000, 2, 3, 3), +- RK3368_CPUCLKL_RATE( 600000000, 2, 3, 3), +- RK3368_CPUCLKL_RATE( 408000000, 2, 2, 2), +- RK3368_CPUCLKL_RATE( 312000000, 2, 2, 2), ++ RK3368_CPUCLKL_RATE(1512000000, 1, 6, 6), ++ RK3368_CPUCLKL_RATE(1488000000, 1, 5, 5), ++ RK3368_CPUCLKL_RATE(1416000000, 1, 5, 5), ++ RK3368_CPUCLKL_RATE(1200000000, 1, 4, 4), ++ RK3368_CPUCLKL_RATE(1008000000, 1, 4, 4), ++ RK3368_CPUCLKL_RATE( 816000000, 1, 3, 3), ++ RK3368_CPUCLKL_RATE( 696000000, 1, 2, 2), ++ RK3368_CPUCLKL_RATE( 600000000, 1, 2, 2), ++ RK3368_CPUCLKL_RATE( 408000000, 1, 1, 1), ++ RK3368_CPUCLKL_RATE( 312000000, 1, 1, 1), + }; + + static struct rockchip_clk_branch rk3368_clk_branches[] __initdata = { +@@ -384,10 +384,10 @@ static struct rockchip_clk_branch rk3368 + * Clock-Architecture Diagram 3 + */ + +- COMPOSITE(0, "aclk_vepu", mux_pll_src_cpll_gpll_usb_p, 0, ++ COMPOSITE(0, "aclk_vepu", mux_pll_src_cpll_gpll_npll_usb_p, 0, + RK3368_CLKSEL_CON(15), 6, 2, MFLAGS, 0, 5, DFLAGS, + RK3368_CLKGATE_CON(4), 6, GFLAGS), +- COMPOSITE(0, "aclk_vdpu", mux_pll_src_cpll_gpll_usb_p, 0, ++ COMPOSITE(0, "aclk_vdpu", mux_pll_src_cpll_gpll_npll_usb_p, 0, + RK3368_CLKSEL_CON(15), 14, 2, MFLAGS, 8, 5, DFLAGS, + RK3368_CLKGATE_CON(4), 7, GFLAGS), + +@@ -442,7 +442,7 @@ static struct rockchip_clk_branch rk3368 + GATE(SCLK_HDMI_HDCP, "sclk_hdmi_hdcp", "xin24m", 0, + RK3368_CLKGATE_CON(4), 13, GFLAGS), + GATE(SCLK_HDMI_CEC, "sclk_hdmi_cec", "xin32k", 0, +- RK3368_CLKGATE_CON(5), 12, GFLAGS), ++ RK3368_CLKGATE_CON(4), 12, GFLAGS), + + COMPOSITE_NODIV(0, "vip_src", mux_pll_src_cpll_gpll_p, 0, + RK3368_CLKSEL_CON(21), 15, 1, MFLAGS, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/samsung/clk-cpu.c linux-libre-4.4.7-gnu/drivers/clk/samsung/clk-cpu.c +--- linux-libre-4.4-gnu/drivers/clk/samsung/clk-cpu.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/clk/samsung/clk-cpu.c 2016-04-12 12:09:26.000000000 -0400 +@@ -148,6 +148,7 @@ static int exynos_cpuclk_pre_rate_change + unsigned long alt_prate = clk_get_rate(cpuclk->alt_parent); + unsigned long alt_div = 0, alt_div_mask = DIV_MASK; + unsigned long div0, div1 = 0, mux_reg; ++ unsigned long flags; + + /* find out the divider values to use for clock data */ + while ((cfg_data->prate * 1000) != ndata->new_rate) { +@@ -156,7 +157,7 @@ static int exynos_cpuclk_pre_rate_change + cfg_data++; + } + +- spin_lock(cpuclk->lock); ++ spin_lock_irqsave(cpuclk->lock, flags); + + /* + * For the selected PLL clock frequency, get the pre-defined divider +@@ -212,7 +213,7 @@ static int exynos_cpuclk_pre_rate_change + DIV_MASK_ALL); + } + +- spin_unlock(cpuclk->lock); ++ spin_unlock_irqrestore(cpuclk->lock, flags); + return 0; + } + +@@ -223,6 +224,7 @@ static int exynos_cpuclk_post_rate_chang + const struct exynos_cpuclk_cfg_data *cfg_data = cpuclk->cfg; + unsigned long div = 0, div_mask = DIV_MASK; + unsigned long mux_reg; ++ unsigned long flags; + + /* find out the divider values to use for clock data */ + if (cpuclk->flags & CLK_CPU_NEEDS_DEBUG_ALT_DIV) { +@@ -233,7 +235,7 @@ static int exynos_cpuclk_post_rate_chang + } + } + +- spin_lock(cpuclk->lock); ++ spin_lock_irqsave(cpuclk->lock, flags); + + /* select mout_apll as the alternate parent */ + mux_reg = readl(base + E4210_SRC_CPU); +@@ -246,7 +248,7 @@ static int exynos_cpuclk_post_rate_chang + } + + exynos_set_safe_div(base, div, div_mask); +- spin_unlock(cpuclk->lock); ++ spin_unlock_irqrestore(cpuclk->lock, flags); + return 0; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clocksource/tcb_clksrc.c linux-libre-4.4.7-gnu/drivers/clocksource/tcb_clksrc.c +--- linux-libre-4.4-gnu/drivers/clocksource/tcb_clksrc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/clocksource/tcb_clksrc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -98,7 +98,8 @@ static int tc_shutdown(struct clock_even + + __raw_writel(0xff, regs + ATMEL_TC_REG(2, IDR)); + __raw_writel(ATMEL_TC_CLKDIS, regs + ATMEL_TC_REG(2, CCR)); +- clk_disable(tcd->clk); ++ if (!clockevent_state_detached(d)) ++ clk_disable(tcd->clk); + + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clocksource/vt8500_timer.c linux-libre-4.4.7-gnu/drivers/clocksource/vt8500_timer.c +--- linux-libre-4.4-gnu/drivers/clocksource/vt8500_timer.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/clocksource/vt8500_timer.c 2016-04-12 12:09:26.000000000 -0400 +@@ -50,6 +50,8 @@ + + #define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t) + ++#define MIN_OSCR_DELTA 16 ++ + static void __iomem *regbase; + + static cycle_t vt8500_timer_read(struct clocksource *cs) +@@ -80,7 +82,7 @@ static int vt8500_timer_set_next_event(u + cpu_relax(); + writel((unsigned long)alarm, regbase + TIMER_MATCH_VAL); + +- if ((signed)(alarm - clocksource.read(&clocksource)) <= 16) ++ if ((signed)(alarm - clocksource.read(&clocksource)) <= MIN_OSCR_DELTA) + return -ETIME; + + writel(1, regbase + TIMER_IER_VAL); +@@ -151,7 +153,7 @@ static void __init vt8500_timer_init(str + pr_err("%s: setup_irq failed for %s\n", __func__, + clockevent.name); + clockevents_config_and_register(&clockevent, VT8500_TIMER_HZ, +- 4, 0xf0000000); ++ MIN_OSCR_DELTA * 2, 0xf0000000); + } + + CLOCKSOURCE_OF_DECLARE(vt8500, "via,vt8500-timer", vt8500_timer_init); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/cpufreq/cpufreq_governor.c linux-libre-4.4.7-gnu/drivers/cpufreq/cpufreq_governor.c +--- linux-libre-4.4-gnu/drivers/cpufreq/cpufreq_governor.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/cpufreq/cpufreq_governor.c 2016-04-12 12:09:26.000000000 -0400 +@@ -356,16 +356,18 @@ static int cpufreq_governor_init(struct + if (!have_governor_per_policy()) + cdata->gdbs_data = dbs_data; + ++ policy->governor_data = dbs_data; ++ + ret = sysfs_create_group(get_governor_parent_kobj(policy), + get_sysfs_attr(dbs_data)); + if (ret) + goto reset_gdbs_data; + +- policy->governor_data = dbs_data; +- + return 0; + + reset_gdbs_data: ++ policy->governor_data = NULL; ++ + if (!have_governor_per_policy()) + cdata->gdbs_data = NULL; + cdata->exit(dbs_data, !policy->governor->initialized); +@@ -386,16 +388,19 @@ static int cpufreq_governor_exit(struct + if (!cdbs->shared || cdbs->shared->policy) + return -EBUSY; + +- policy->governor_data = NULL; + if (!--dbs_data->usage_count) { + sysfs_remove_group(get_governor_parent_kobj(policy), + get_sysfs_attr(dbs_data)); + ++ policy->governor_data = NULL; ++ + if (!have_governor_per_policy()) + cdata->gdbs_data = NULL; + + cdata->exit(dbs_data, policy->governor->initialized == 1); + kfree(dbs_data); ++ } else { ++ policy->governor_data = NULL; + } + + free_common_dbs_info(policy, cdata); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/cpufreq/pxa2xx-cpufreq.c linux-libre-4.4.7-gnu/drivers/cpufreq/pxa2xx-cpufreq.c +--- linux-libre-4.4-gnu/drivers/cpufreq/pxa2xx-cpufreq.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/cpufreq/pxa2xx-cpufreq.c 2016-04-12 12:09:26.000000000 -0400 +@@ -202,7 +202,7 @@ static void __init pxa_cpufreq_init_volt + } + } + #else +-static int pxa_cpufreq_change_voltage(struct pxa_freqs *pxa_freq) ++static int pxa_cpufreq_change_voltage(const struct pxa_freqs *pxa_freq) + { + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/atmel-aes.c linux-libre-4.4.7-gnu/drivers/crypto/atmel-aes.c +--- linux-libre-4.4-gnu/drivers/crypto/atmel-aes.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/crypto/atmel-aes.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1396,9 +1396,9 @@ static int atmel_aes_probe(struct platfo + } + + aes_dd->io_base = devm_ioremap_resource(&pdev->dev, aes_res); +- if (!aes_dd->io_base) { ++ if (IS_ERR(aes_dd->io_base)) { + dev_err(dev, "can't ioremap\n"); +- err = -ENOMEM; ++ err = PTR_ERR(aes_dd->io_base); + goto res_err; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/atmel-sha.c linux-libre-4.4.7-gnu/drivers/crypto/atmel-sha.c +--- linux-libre-4.4-gnu/drivers/crypto/atmel-sha.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/crypto/atmel-sha.c 2016-04-12 12:09:26.000000000 -0400 +@@ -783,7 +783,7 @@ static void atmel_sha_finish_req(struct + dd->flags &= ~(SHA_FLAGS_BUSY | SHA_FLAGS_FINAL | SHA_FLAGS_CPU | + SHA_FLAGS_DMA_READY | SHA_FLAGS_OUTPUT_READY); + +- clk_disable_unprepare(dd->iclk); ++ clk_disable(dd->iclk); + + if (req->base.complete) + req->base.complete(&req->base, err); +@@ -796,7 +796,7 @@ static int atmel_sha_hw_init(struct atme + { + int err; + +- err = clk_prepare_enable(dd->iclk); ++ err = clk_enable(dd->iclk); + if (err) + return err; + +@@ -823,7 +823,7 @@ static void atmel_sha_hw_version_init(st + dev_info(dd->dev, + "version: 0x%x\n", dd->hw_version); + +- clk_disable_unprepare(dd->iclk); ++ clk_disable(dd->iclk); + } + + static int atmel_sha_handle_queue(struct atmel_sha_dev *dd, +@@ -1405,12 +1405,16 @@ static int atmel_sha_probe(struct platfo + } + + sha_dd->io_base = devm_ioremap_resource(&pdev->dev, sha_res); +- if (!sha_dd->io_base) { ++ if (IS_ERR(sha_dd->io_base)) { + dev_err(dev, "can't ioremap\n"); +- err = -ENOMEM; ++ err = PTR_ERR(sha_dd->io_base); + goto res_err; + } + ++ err = clk_prepare(sha_dd->iclk); ++ if (err) ++ goto res_err; ++ + atmel_sha_hw_version_init(sha_dd); + + atmel_sha_get_cap(sha_dd); +@@ -1422,12 +1426,12 @@ static int atmel_sha_probe(struct platfo + if (IS_ERR(pdata)) { + dev_err(&pdev->dev, "platform data not available\n"); + err = PTR_ERR(pdata); +- goto res_err; ++ goto iclk_unprepare; + } + } + if (!pdata->dma_slave) { + err = -ENXIO; +- goto res_err; ++ goto iclk_unprepare; + } + err = atmel_sha_dma_init(sha_dd, pdata); + if (err) +@@ -1458,6 +1462,8 @@ err_algs: + if (sha_dd->caps.has_dma) + atmel_sha_dma_cleanup(sha_dd); + err_sha_dma: ++iclk_unprepare: ++ clk_unprepare(sha_dd->iclk); + res_err: + tasklet_kill(&sha_dd->done_task); + sha_dd_err: +@@ -1484,12 +1490,7 @@ static int atmel_sha_remove(struct platf + if (sha_dd->caps.has_dma) + atmel_sha_dma_cleanup(sha_dd); + +- iounmap(sha_dd->io_base); +- +- clk_put(sha_dd->iclk); +- +- if (sha_dd->irq >= 0) +- free_irq(sha_dd->irq, sha_dd); ++ clk_unprepare(sha_dd->iclk); + + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/atmel-tdes.c linux-libre-4.4.7-gnu/drivers/crypto/atmel-tdes.c +--- linux-libre-4.4-gnu/drivers/crypto/atmel-tdes.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/crypto/atmel-tdes.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1417,9 +1417,9 @@ static int atmel_tdes_probe(struct platf + } + + tdes_dd->io_base = devm_ioremap_resource(&pdev->dev, tdes_res); +- if (!tdes_dd->io_base) { ++ if (IS_ERR(tdes_dd->io_base)) { + dev_err(dev, "can't ioremap\n"); +- err = -ENOMEM; ++ err = PTR_ERR(tdes_dd->io_base); + goto res_err; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/caam/ctrl.c linux-libre-4.4.7-gnu/drivers/crypto/caam/ctrl.c +--- linux-libre-4.4-gnu/drivers/crypto/caam/ctrl.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/crypto/caam/ctrl.c 2016-04-12 12:09:26.000000000 -0400 +@@ -534,8 +534,8 @@ static int caam_probe(struct platform_de + * long pointers in master configuration register + */ + clrsetbits_32(&ctrl->mcr, MCFGR_AWCACHE_MASK, MCFGR_AWCACHE_CACH | +- MCFGR_WDENABLE | (sizeof(dma_addr_t) == sizeof(u64) ? +- MCFGR_LONG_PTR : 0)); ++ MCFGR_AWCACHE_BUFF | MCFGR_WDENABLE | ++ (sizeof(dma_addr_t) == sizeof(u64) ? MCFGR_LONG_PTR : 0)); + + /* + * Read the Compile Time paramters and SCFGR to determine +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/ccp/ccp-crypto-aes-cmac.c linux-libre-4.4.7-gnu/drivers/crypto/ccp/ccp-crypto-aes-cmac.c +--- linux-libre-4.4-gnu/drivers/crypto/ccp/ccp-crypto-aes-cmac.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/crypto/ccp/ccp-crypto-aes-cmac.c 2016-04-12 12:09:26.000000000 -0400 +@@ -220,6 +220,39 @@ static int ccp_aes_cmac_digest(struct ah + return ccp_aes_cmac_finup(req); + } + ++static int ccp_aes_cmac_export(struct ahash_request *req, void *out) ++{ ++ struct ccp_aes_cmac_req_ctx *rctx = ahash_request_ctx(req); ++ struct ccp_aes_cmac_exp_ctx state; ++ ++ state.null_msg = rctx->null_msg; ++ memcpy(state.iv, rctx->iv, sizeof(state.iv)); ++ state.buf_count = rctx->buf_count; ++ memcpy(state.buf, rctx->buf, sizeof(state.buf)); ++ ++ /* 'out' may not be aligned so memcpy from local variable */ ++ memcpy(out, &state, sizeof(state)); ++ ++ return 0; ++} ++ ++static int ccp_aes_cmac_import(struct ahash_request *req, const void *in) ++{ ++ struct ccp_aes_cmac_req_ctx *rctx = ahash_request_ctx(req); ++ struct ccp_aes_cmac_exp_ctx state; ++ ++ /* 'in' may not be aligned so memcpy to local variable */ ++ memcpy(&state, in, sizeof(state)); ++ ++ memset(rctx, 0, sizeof(*rctx)); ++ rctx->null_msg = state.null_msg; ++ memcpy(rctx->iv, state.iv, sizeof(rctx->iv)); ++ rctx->buf_count = state.buf_count; ++ memcpy(rctx->buf, state.buf, sizeof(rctx->buf)); ++ ++ return 0; ++} ++ + static int ccp_aes_cmac_setkey(struct crypto_ahash *tfm, const u8 *key, + unsigned int key_len) + { +@@ -352,10 +385,13 @@ int ccp_register_aes_cmac_algs(struct li + alg->final = ccp_aes_cmac_final; + alg->finup = ccp_aes_cmac_finup; + alg->digest = ccp_aes_cmac_digest; ++ alg->export = ccp_aes_cmac_export; ++ alg->import = ccp_aes_cmac_import; + alg->setkey = ccp_aes_cmac_setkey; + + halg = &alg->halg; + halg->digestsize = AES_BLOCK_SIZE; ++ halg->statesize = sizeof(struct ccp_aes_cmac_exp_ctx); + + base = &halg->base; + snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "cmac(aes)"); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/ccp/ccp-crypto.h linux-libre-4.4.7-gnu/drivers/crypto/ccp/ccp-crypto.h +--- linux-libre-4.4-gnu/drivers/crypto/ccp/ccp-crypto.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/crypto/ccp/ccp-crypto.h 2016-04-12 12:09:26.000000000 -0400 +@@ -129,6 +129,15 @@ struct ccp_aes_cmac_req_ctx { + struct ccp_cmd cmd; + }; + ++struct ccp_aes_cmac_exp_ctx { ++ unsigned int null_msg; ++ ++ u8 iv[AES_BLOCK_SIZE]; ++ ++ unsigned int buf_count; ++ u8 buf[AES_BLOCK_SIZE]; ++}; ++ + /***** SHA related defines *****/ + #define MAX_SHA_CONTEXT_SIZE SHA256_DIGEST_SIZE + #define MAX_SHA_BLOCK_SIZE SHA256_BLOCK_SIZE +@@ -171,6 +180,19 @@ struct ccp_sha_req_ctx { + struct ccp_cmd cmd; + }; + ++struct ccp_sha_exp_ctx { ++ enum ccp_sha_type type; ++ ++ u64 msg_bits; ++ ++ unsigned int first; ++ ++ u8 ctx[MAX_SHA_CONTEXT_SIZE]; ++ ++ unsigned int buf_count; ++ u8 buf[MAX_SHA_BLOCK_SIZE]; ++}; ++ + /***** Common Context Structure *****/ + struct ccp_ctx { + int (*complete)(struct crypto_async_request *req, int ret); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/ccp/ccp-crypto-sha.c linux-libre-4.4.7-gnu/drivers/crypto/ccp/ccp-crypto-sha.c +--- linux-libre-4.4-gnu/drivers/crypto/ccp/ccp-crypto-sha.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/crypto/ccp/ccp-crypto-sha.c 2016-04-12 12:09:26.000000000 -0400 +@@ -207,6 +207,43 @@ static int ccp_sha_digest(struct ahash_r + return ccp_sha_finup(req); + } + ++static int ccp_sha_export(struct ahash_request *req, void *out) ++{ ++ struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req); ++ struct ccp_sha_exp_ctx state; ++ ++ state.type = rctx->type; ++ state.msg_bits = rctx->msg_bits; ++ state.first = rctx->first; ++ memcpy(state.ctx, rctx->ctx, sizeof(state.ctx)); ++ state.buf_count = rctx->buf_count; ++ memcpy(state.buf, rctx->buf, sizeof(state.buf)); ++ ++ /* 'out' may not be aligned so memcpy from local variable */ ++ memcpy(out, &state, sizeof(state)); ++ ++ return 0; ++} ++ ++static int ccp_sha_import(struct ahash_request *req, const void *in) ++{ ++ struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req); ++ struct ccp_sha_exp_ctx state; ++ ++ /* 'in' may not be aligned so memcpy to local variable */ ++ memcpy(&state, in, sizeof(state)); ++ ++ memset(rctx, 0, sizeof(*rctx)); ++ rctx->type = state.type; ++ rctx->msg_bits = state.msg_bits; ++ rctx->first = state.first; ++ memcpy(rctx->ctx, state.ctx, sizeof(rctx->ctx)); ++ rctx->buf_count = state.buf_count; ++ memcpy(rctx->buf, state.buf, sizeof(rctx->buf)); ++ ++ return 0; ++} ++ + static int ccp_sha_setkey(struct crypto_ahash *tfm, const u8 *key, + unsigned int key_len) + { +@@ -403,9 +440,12 @@ static int ccp_register_sha_alg(struct l + alg->final = ccp_sha_final; + alg->finup = ccp_sha_finup; + alg->digest = ccp_sha_digest; ++ alg->export = ccp_sha_export; ++ alg->import = ccp_sha_import; + + halg = &alg->halg; + halg->digestsize = def->digest_size; ++ halg->statesize = sizeof(struct ccp_sha_exp_ctx); + + base = &halg->base; + snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/marvell/cesa.c linux-libre-4.4.7-gnu/drivers/crypto/marvell/cesa.c +--- linux-libre-4.4-gnu/drivers/crypto/marvell/cesa.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/crypto/marvell/cesa.c 2016-04-12 12:09:26.000000000 -0400 +@@ -306,7 +306,7 @@ static int mv_cesa_dev_dma_init(struct m + return -ENOMEM; + + dma->padding_pool = dmam_pool_create("cesa_padding", dev, 72, 1, 0); +- if (!dma->cache_pool) ++ if (!dma->padding_pool) + return -ENOMEM; + + cesa->dma = dma; +@@ -420,7 +420,7 @@ static int mv_cesa_probe(struct platform + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs"); + cesa->regs = devm_ioremap_resource(dev, res); + if (IS_ERR(cesa->regs)) +- return -ENOMEM; ++ return PTR_ERR(cesa->regs); + + ret = mv_cesa_dev_dma_init(cesa); + if (ret) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/sunxi-ss/sun4i-ss-core.c linux-libre-4.4.7-gnu/drivers/crypto/sunxi-ss/sun4i-ss-core.c +--- linux-libre-4.4-gnu/drivers/crypto/sunxi-ss/sun4i-ss-core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/crypto/sunxi-ss/sun4i-ss-core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -39,6 +39,7 @@ static struct sun4i_ss_alg_template ss_a + .import = sun4i_hash_import_md5, + .halg = { + .digestsize = MD5_DIGEST_SIZE, ++ .statesize = sizeof(struct md5_state), + .base = { + .cra_name = "md5", + .cra_driver_name = "md5-sun4i-ss", +@@ -66,6 +67,7 @@ static struct sun4i_ss_alg_template ss_a + .import = sun4i_hash_import_sha1, + .halg = { + .digestsize = SHA1_DIGEST_SIZE, ++ .statesize = sizeof(struct sha1_state), + .base = { + .cra_name = "sha1", + .cra_driver_name = "sha1-sun4i-ss", +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/ux500/cryp/cryp_core.c linux-libre-4.4.7-gnu/drivers/crypto/ux500/cryp/cryp_core.c +--- linux-libre-4.4-gnu/drivers/crypto/ux500/cryp/cryp_core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/crypto/ux500/cryp/cryp_core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1440,9 +1440,9 @@ static int ux500_cryp_probe(struct platf + + device_data->phybase = res->start; + device_data->base = devm_ioremap_resource(dev, res); +- if (!device_data->base) { ++ if (IS_ERR(device_data->base)) { + dev_err(dev, "[%s]: ioremap failed!", __func__); +- ret = -ENOMEM; ++ ret = PTR_ERR(device_data->base); + goto out; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/ux500/hash/hash_core.c linux-libre-4.4.7-gnu/drivers/crypto/ux500/hash/hash_core.c +--- linux-libre-4.4-gnu/drivers/crypto/ux500/hash/hash_core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/crypto/ux500/hash/hash_core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1675,9 +1675,9 @@ static int ux500_hash_probe(struct platf + + device_data->phybase = res->start; + device_data->base = devm_ioremap_resource(dev, res); +- if (!device_data->base) { ++ if (IS_ERR(device_data->base)) { + dev_err(dev, "%s: ioremap() failed!\n", __func__); +- ret = -ENOMEM; ++ ret = PTR_ERR(device_data->base); + goto out; + } + spin_lock_init(&device_data->ctx_lock); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/at_xdmac.c linux-libre-4.4.7-gnu/drivers/dma/at_xdmac.c +--- linux-libre-4.4-gnu/drivers/dma/at_xdmac.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/dma/at_xdmac.c 2016-04-12 12:09:26.000000000 -0400 +@@ -176,6 +176,7 @@ + #define AT_XDMAC_MAX_CHAN 0x20 + #define AT_XDMAC_MAX_CSIZE 16 /* 16 data */ + #define AT_XDMAC_MAX_DWIDTH 8 /* 64 bits */ ++#define AT_XDMAC_RESIDUE_MAX_RETRIES 5 + + #define AT_XDMAC_DMA_BUSWIDTHS\ + (BIT(DMA_SLAVE_BUSWIDTH_UNDEFINED) |\ +@@ -1383,8 +1384,8 @@ at_xdmac_tx_status(struct dma_chan *chan + struct at_xdmac_desc *desc, *_desc; + struct list_head *descs_list; + enum dma_status ret; +- int residue; +- u32 cur_nda, mask, value; ++ int residue, retry; ++ u32 cur_nda, check_nda, cur_ubc, mask, value; + u8 dwidth = 0; + unsigned long flags; + +@@ -1421,7 +1422,42 @@ at_xdmac_tx_status(struct dma_chan *chan + cpu_relax(); + } + ++ /* ++ * When processing the residue, we need to read two registers but we ++ * can't do it in an atomic way. AT_XDMAC_CNDA is used to find where ++ * we stand in the descriptor list and AT_XDMAC_CUBC is used ++ * to know how many data are remaining for the current descriptor. ++ * Since the dma channel is not paused to not loose data, between the ++ * AT_XDMAC_CNDA and AT_XDMAC_CUBC read, we may have change of ++ * descriptor. ++ * For that reason, after reading AT_XDMAC_CUBC, we check if we are ++ * still using the same descriptor by reading a second time ++ * AT_XDMAC_CNDA. If AT_XDMAC_CNDA has changed, it means we have to ++ * read again AT_XDMAC_CUBC. ++ * Memory barriers are used to ensure the read order of the registers. ++ * A max number of retries is set because unlikely it can never ends if ++ * we are transferring a lot of data with small buffers. ++ */ + cur_nda = at_xdmac_chan_read(atchan, AT_XDMAC_CNDA) & 0xfffffffc; ++ rmb(); ++ cur_ubc = at_xdmac_chan_read(atchan, AT_XDMAC_CUBC); ++ for (retry = 0; retry < AT_XDMAC_RESIDUE_MAX_RETRIES; retry++) { ++ rmb(); ++ check_nda = at_xdmac_chan_read(atchan, AT_XDMAC_CNDA) & 0xfffffffc; ++ ++ if (likely(cur_nda == check_nda)) ++ break; ++ ++ cur_nda = check_nda; ++ rmb(); ++ cur_ubc = at_xdmac_chan_read(atchan, AT_XDMAC_CUBC); ++ } ++ ++ if (unlikely(retry >= AT_XDMAC_RESIDUE_MAX_RETRIES)) { ++ ret = DMA_ERROR; ++ goto spin_unlock; ++ } ++ + /* + * Remove size of all microblocks already transferred and the current + * one. Then add the remaining size to transfer of the current +@@ -1434,7 +1470,7 @@ at_xdmac_tx_status(struct dma_chan *chan + if ((desc->lld.mbr_nda & 0xfffffffc) == cur_nda) + break; + } +- residue += at_xdmac_chan_read(atchan, AT_XDMAC_CUBC) << dwidth; ++ residue += cur_ubc << dwidth; + + dma_set_residue(txstate, residue); + +@@ -1688,6 +1724,7 @@ static int at_xdmac_device_terminate_all + list_for_each_entry_safe(desc, _desc, &atchan->xfers_list, xfer_node) + at_xdmac_remove_xfer(atchan, desc); + ++ clear_bit(AT_XDMAC_CHAN_IS_PAUSED, &atchan->status); + clear_bit(AT_XDMAC_CHAN_IS_CYCLIC, &atchan->status); + spin_unlock_irqrestore(&atchan->lock, flags); + +@@ -1820,6 +1857,8 @@ static int atmel_xdmac_resume(struct dev + atchan = to_at_xdmac_chan(chan); + at_xdmac_chan_write(atchan, AT_XDMAC_CC, atchan->save_cc); + if (at_xdmac_chan_is_cyclic(atchan)) { ++ if (at_xdmac_chan_is_paused(atchan)) ++ at_xdmac_device_resume(chan); + at_xdmac_chan_write(atchan, AT_XDMAC_CNDA, atchan->save_cnda); + at_xdmac_chan_write(atchan, AT_XDMAC_CNDC, atchan->save_cndc); + at_xdmac_chan_write(atchan, AT_XDMAC_CIE, atchan->save_cim); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/dw/core.c linux-libre-4.4.7-gnu/drivers/dma/dw/core.c +--- linux-libre-4.4-gnu/drivers/dma/dw/core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/dma/dw/core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -536,16 +536,17 @@ EXPORT_SYMBOL(dw_dma_get_dst_addr); + + /* Called with dwc->lock held and all DMAC interrupts disabled */ + static void dwc_handle_cyclic(struct dw_dma *dw, struct dw_dma_chan *dwc, +- u32 status_err, u32 status_xfer) ++ u32 status_block, u32 status_err, u32 status_xfer) + { + unsigned long flags; + +- if (dwc->mask) { ++ if (status_block & dwc->mask) { + void (*callback)(void *param); + void *callback_param; + + dev_vdbg(chan2dev(&dwc->chan), "new cyclic period llp 0x%08x\n", + channel_readl(dwc, LLP)); ++ dma_writel(dw, CLEAR.BLOCK, dwc->mask); + + callback = dwc->cdesc->period_callback; + callback_param = dwc->cdesc->period_callback_param; +@@ -577,6 +578,7 @@ static void dwc_handle_cyclic(struct dw_ + channel_writel(dwc, CTL_LO, 0); + channel_writel(dwc, CTL_HI, 0); + ++ dma_writel(dw, CLEAR.BLOCK, dwc->mask); + dma_writel(dw, CLEAR.ERROR, dwc->mask); + dma_writel(dw, CLEAR.XFER, dwc->mask); + +@@ -585,6 +587,9 @@ static void dwc_handle_cyclic(struct dw_ + + spin_unlock_irqrestore(&dwc->lock, flags); + } ++ ++ /* Re-enable interrupts */ ++ channel_set_bit(dw, MASK.BLOCK, dwc->mask); + } + + /* ------------------------------------------------------------------------- */ +@@ -593,10 +598,12 @@ static void dw_dma_tasklet(unsigned long + { + struct dw_dma *dw = (struct dw_dma *)data; + struct dw_dma_chan *dwc; ++ u32 status_block; + u32 status_xfer; + u32 status_err; + int i; + ++ status_block = dma_readl(dw, RAW.BLOCK); + status_xfer = dma_readl(dw, RAW.XFER); + status_err = dma_readl(dw, RAW.ERROR); + +@@ -605,16 +612,15 @@ static void dw_dma_tasklet(unsigned long + for (i = 0; i < dw->dma.chancnt; i++) { + dwc = &dw->chan[i]; + if (test_bit(DW_DMA_IS_CYCLIC, &dwc->flags)) +- dwc_handle_cyclic(dw, dwc, status_err, status_xfer); ++ dwc_handle_cyclic(dw, dwc, status_block, status_err, ++ status_xfer); + else if (status_err & (1 << i)) + dwc_handle_error(dw, dwc); + else if (status_xfer & (1 << i)) + dwc_scan_descriptors(dw, dwc); + } + +- /* +- * Re-enable interrupts. +- */ ++ /* Re-enable interrupts */ + channel_set_bit(dw, MASK.XFER, dw->all_chan_mask); + channel_set_bit(dw, MASK.ERROR, dw->all_chan_mask); + } +@@ -635,6 +641,7 @@ static irqreturn_t dw_dma_interrupt(int + * softirq handler. + */ + channel_clear_bit(dw, MASK.XFER, dw->all_chan_mask); ++ channel_clear_bit(dw, MASK.BLOCK, dw->all_chan_mask); + channel_clear_bit(dw, MASK.ERROR, dw->all_chan_mask); + + status = dma_readl(dw, STATUS_INT); +@@ -645,6 +652,7 @@ static irqreturn_t dw_dma_interrupt(int + + /* Try to recover */ + channel_clear_bit(dw, MASK.XFER, (1 << 8) - 1); ++ channel_clear_bit(dw, MASK.BLOCK, (1 << 8) - 1); + channel_clear_bit(dw, MASK.SRC_TRAN, (1 << 8) - 1); + channel_clear_bit(dw, MASK.DST_TRAN, (1 << 8) - 1); + channel_clear_bit(dw, MASK.ERROR, (1 << 8) - 1); +@@ -1111,6 +1119,7 @@ static void dw_dma_off(struct dw_dma *dw + dma_writel(dw, CFG, 0); + + channel_clear_bit(dw, MASK.XFER, dw->all_chan_mask); ++ channel_clear_bit(dw, MASK.BLOCK, dw->all_chan_mask); + channel_clear_bit(dw, MASK.SRC_TRAN, dw->all_chan_mask); + channel_clear_bit(dw, MASK.DST_TRAN, dw->all_chan_mask); + channel_clear_bit(dw, MASK.ERROR, dw->all_chan_mask); +@@ -1216,6 +1225,7 @@ static void dwc_free_chan_resources(stru + + /* Disable interrupts */ + channel_clear_bit(dw, MASK.XFER, dwc->mask); ++ channel_clear_bit(dw, MASK.BLOCK, dwc->mask); + channel_clear_bit(dw, MASK.ERROR, dwc->mask); + + spin_unlock_irqrestore(&dwc->lock, flags); +@@ -1245,7 +1255,7 @@ static void dwc_free_chan_resources(stru + int dw_dma_cyclic_start(struct dma_chan *chan) + { + struct dw_dma_chan *dwc = to_dw_dma_chan(chan); +- struct dw_dma *dw = to_dw_dma(dwc->chan.device); ++ struct dw_dma *dw = to_dw_dma(chan->device); + unsigned long flags; + + if (!test_bit(DW_DMA_IS_CYCLIC, &dwc->flags)) { +@@ -1255,25 +1265,10 @@ int dw_dma_cyclic_start(struct dma_chan + + spin_lock_irqsave(&dwc->lock, flags); + +- /* Assert channel is idle */ +- if (dma_readl(dw, CH_EN) & dwc->mask) { +- dev_err(chan2dev(&dwc->chan), +- "%s: BUG: Attempted to start non-idle channel\n", +- __func__); +- dwc_dump_chan_regs(dwc); +- spin_unlock_irqrestore(&dwc->lock, flags); +- return -EBUSY; +- } +- +- dma_writel(dw, CLEAR.ERROR, dwc->mask); +- dma_writel(dw, CLEAR.XFER, dwc->mask); +- +- /* Setup DMAC channel registers */ +- channel_writel(dwc, LLP, dwc->cdesc->desc[0]->txd.phys); +- channel_writel(dwc, CTL_LO, DWC_CTLL_LLP_D_EN | DWC_CTLL_LLP_S_EN); +- channel_writel(dwc, CTL_HI, 0); ++ /* Enable interrupts to perform cyclic transfer */ ++ channel_set_bit(dw, MASK.BLOCK, dwc->mask); + +- channel_set_bit(dw, CH_EN, dwc->mask); ++ dwc_dostart(dwc, dwc->cdesc->desc[0]); + + spin_unlock_irqrestore(&dwc->lock, flags); + +@@ -1479,6 +1474,7 @@ void dw_dma_cyclic_free(struct dma_chan + + dwc_chan_disable(dw, dwc); + ++ dma_writel(dw, CLEAR.BLOCK, dwc->mask); + dma_writel(dw, CLEAR.ERROR, dwc->mask); + dma_writel(dw, CLEAR.XFER, dwc->mask); + +@@ -1567,9 +1563,6 @@ int dw_dma_probe(struct dw_dma_chip *chi + /* Force dma off, just in case */ + dw_dma_off(dw); + +- /* Disable BLOCK interrupts as well */ +- channel_clear_bit(dw, MASK.BLOCK, dw->all_chan_mask); +- + /* Create a pool of consistent memory blocks for hardware descriptors */ + dw->desc_pool = dmam_pool_create("dw_dmac_desc_pool", chip->dev, + sizeof(struct dw_desc), 4, 0); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/pxa_dma.c linux-libre-4.4.7-gnu/drivers/dma/pxa_dma.c +--- linux-libre-4.4-gnu/drivers/dma/pxa_dma.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/dma/pxa_dma.c 2016-04-12 12:09:26.000000000 -0400 +@@ -583,6 +583,8 @@ static void set_updater_desc(struct pxad + (PXA_DCMD_LENGTH & sizeof(u32)); + if (flags & DMA_PREP_INTERRUPT) + updater->dcmd |= PXA_DCMD_ENDIRQEN; ++ if (sw_desc->cyclic) ++ sw_desc->hw_desc[sw_desc->nb_desc - 2]->ddadr = sw_desc->first; + } + + static bool is_desc_completed(struct virt_dma_desc *vd) +@@ -673,6 +675,10 @@ static irqreturn_t pxad_chan_handler(int + dev_dbg(&chan->vc.chan.dev->device, + "%s(): checking txd %p[%x]: completed=%d\n", + __func__, vd, vd->tx.cookie, is_desc_completed(vd)); ++ if (to_pxad_sw_desc(vd)->cyclic) { ++ vchan_cyclic_callback(vd); ++ break; ++ } + if (is_desc_completed(vd)) { + list_del(&vd->node); + vchan_cookie_complete(vd); +@@ -1080,7 +1086,7 @@ pxad_prep_dma_cyclic(struct dma_chan *dc + return NULL; + + pxad_get_config(chan, dir, &dcmd, &dsadr, &dtadr); +- dcmd |= PXA_DCMD_ENDIRQEN | (PXA_DCMD_LENGTH | period_len); ++ dcmd |= PXA_DCMD_ENDIRQEN | (PXA_DCMD_LENGTH & period_len); + dev_dbg(&chan->vc.chan.dev->device, + "%s(): buf_addr=0x%lx len=%zu period=%zu dir=%d flags=%lx\n", + __func__, (unsigned long)buf_addr, len, period_len, dir, flags); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/amd64_edac.c linux-libre-4.4.7-gnu/drivers/edac/amd64_edac.c +--- linux-libre-4.4-gnu/drivers/edac/amd64_edac.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/edac/amd64_edac.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1452,7 +1452,7 @@ static u64 f1x_get_norm_dct_addr(struct + u64 chan_off; + u64 dram_base = get_dram_base(pvt, range); + u64 hole_off = f10_dhar_offset(pvt); +- u64 dct_sel_base_off = (pvt->dct_sel_hi & 0xFFFFFC00) << 16; ++ u64 dct_sel_base_off = (u64)(pvt->dct_sel_hi & 0xFFFFFC00) << 16; + + if (hi_rng) { + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/edac_device.c linux-libre-4.4.7-gnu/drivers/edac/edac_device.c +--- linux-libre-4.4-gnu/drivers/edac/edac_device.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/edac/edac_device.c 2016-04-12 12:09:26.000000000 -0400 +@@ -435,16 +435,13 @@ void edac_device_workq_setup(struct edac + */ + void edac_device_workq_teardown(struct edac_device_ctl_info *edac_dev) + { +- int status; +- + if (!edac_dev->edac_check) + return; + +- status = cancel_delayed_work(&edac_dev->work); +- if (status == 0) { +- /* workq instance might be running, wait for it */ +- flush_workqueue(edac_workqueue); +- } ++ edac_dev->op_state = OP_OFFLINE; ++ ++ cancel_delayed_work_sync(&edac_dev->work); ++ flush_workqueue(edac_workqueue); + } + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/edac_mc.c linux-libre-4.4.7-gnu/drivers/edac/edac_mc.c +--- linux-libre-4.4-gnu/drivers/edac/edac_mc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/edac/edac_mc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -586,18 +586,10 @@ static void edac_mc_workq_setup(struct m + */ + static void edac_mc_workq_teardown(struct mem_ctl_info *mci) + { +- int status; +- +- if (mci->op_state != OP_RUNNING_POLL) +- return; +- +- status = cancel_delayed_work(&mci->work); +- if (status == 0) { +- edac_dbg(0, "not canceled, flush the queue\n"); ++ mci->op_state = OP_OFFLINE; + +- /* workq instance might be running, wait for it */ +- flush_workqueue(edac_workqueue); +- } ++ cancel_delayed_work_sync(&mci->work); ++ flush_workqueue(edac_workqueue); + } + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/edac_mc_sysfs.c linux-libre-4.4.7-gnu/drivers/edac/edac_mc_sysfs.c +--- linux-libre-4.4-gnu/drivers/edac/edac_mc_sysfs.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/edac/edac_mc_sysfs.c 2016-04-12 12:09:26.000000000 -0400 +@@ -880,21 +880,26 @@ static struct device_type mci_attr_type + int edac_create_sysfs_mci_device(struct mem_ctl_info *mci, + const struct attribute_group **groups) + { ++ char *name; + int i, err; + + /* + * The memory controller needs its own bus, in order to avoid + * namespace conflicts at /sys/bus/edac. + */ +- mci->bus->name = kasprintf(GFP_KERNEL, "mc%d", mci->mc_idx); +- if (!mci->bus->name) ++ name = kasprintf(GFP_KERNEL, "mc%d", mci->mc_idx); ++ if (!name) + return -ENOMEM; + ++ mci->bus->name = name; ++ + edac_dbg(0, "creating bus %s\n", mci->bus->name); + + err = bus_register(mci->bus); +- if (err < 0) +- goto fail_free_name; ++ if (err < 0) { ++ kfree(name); ++ return err; ++ } + + /* get the /sys/devices/system/edac subsys reference */ + mci->dev.type = &mci_attr_type; +@@ -961,8 +966,8 @@ fail_unregister_dimm: + device_unregister(&mci->dev); + fail_unregister_bus: + bus_unregister(mci->bus); +-fail_free_name: +- kfree(mci->bus->name); ++ kfree(name); ++ + return err; + } + +@@ -993,10 +998,12 @@ void edac_remove_sysfs_mci_device(struct + + void edac_unregister_sysfs(struct mem_ctl_info *mci) + { ++ const char *name = mci->bus->name; ++ + edac_dbg(1, "Unregistering device %s\n", dev_name(&mci->dev)); + device_unregister(&mci->dev); + bus_unregister(mci->bus); +- kfree(mci->bus->name); ++ kfree(name); + } + + static void mc_attr_release(struct device *dev) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/edac_pci.c linux-libre-4.4.7-gnu/drivers/edac/edac_pci.c +--- linux-libre-4.4-gnu/drivers/edac/edac_pci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/edac/edac_pci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -274,13 +274,12 @@ static void edac_pci_workq_setup(struct + */ + static void edac_pci_workq_teardown(struct edac_pci_ctl_info *pci) + { +- int status; +- + edac_dbg(0, "\n"); + +- status = cancel_delayed_work(&pci->work); +- if (status == 0) +- flush_workqueue(edac_workqueue); ++ pci->op_state = OP_OFFLINE; ++ ++ cancel_delayed_work_sync(&pci->work); ++ flush_workqueue(edac_workqueue); + } + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/sb_edac.c linux-libre-4.4.7-gnu/drivers/edac/sb_edac.c +--- linux-libre-4.4-gnu/drivers/edac/sb_edac.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/edac/sb_edac.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1117,8 +1117,8 @@ static void get_memory_layout(const stru + edac_dbg(0, "TAD#%d: up to %u.%03u GB (0x%016Lx), socket interleave %d, memory interleave %d, TGT: %d, %d, %d, %d, reg=0x%08x\n", + n_tads, gb, (mb*1000)/1024, + ((u64)tmp_mb) << 20L, +- (u32)TAD_SOCK(reg), +- (u32)TAD_CH(reg), ++ (u32)(1 << TAD_SOCK(reg)), ++ (u32)TAD_CH(reg) + 1, + (u32)TAD_TGT0(reg), + (u32)TAD_TGT1(reg), + (u32)TAD_TGT2(reg), +@@ -1396,7 +1396,7 @@ static int get_memory_error_data(struct + } + + ch_way = TAD_CH(reg) + 1; +- sck_way = TAD_SOCK(reg) + 1; ++ sck_way = 1 << TAD_SOCK(reg); + + if (ch_way == 3) + idx = addr >> 6; +@@ -1453,7 +1453,7 @@ static int get_memory_error_data(struct + n_tads, + addr, + limit, +- (u32)TAD_SOCK(reg), ++ sck_way, + ch_way, + offset, + idx, +@@ -1468,18 +1468,12 @@ static int get_memory_error_data(struct + offset, addr); + return -EINVAL; + } +- addr -= offset; +- /* Store the low bits [0:6] of the addr */ +- ch_addr = addr & 0x7f; +- /* Remove socket wayness and remove 6 bits */ +- addr >>= 6; +- addr = div_u64(addr, sck_xch); +-#if 0 +- /* Divide by channel way */ +- addr = addr / ch_way; +-#endif +- /* Recover the last 6 bits */ +- ch_addr |= addr << 6; ++ ++ ch_addr = addr - offset; ++ ch_addr >>= (6 + shiftup); ++ ch_addr /= ch_way * sck_way; ++ ch_addr <<= (6 + shiftup); ++ ch_addr |= addr & ((1 << (6 + shiftup)) - 1); + + /* + * Step 3) Decode rank +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/firmware/efi/efivars.c linux-libre-4.4.7-gnu/drivers/firmware/efi/efivars.c +--- linux-libre-4.4-gnu/drivers/firmware/efi/efivars.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/firmware/efi/efivars.c 2016-04-12 12:09:26.000000000 -0400 +@@ -221,7 +221,7 @@ sanity_check(struct efi_variable *var, e + } + + if ((attributes & ~EFI_VARIABLE_MASK) != 0 || +- efivar_validate(name, data, size) == false) { ++ efivar_validate(vendor, name, data, size) == false) { + printk(KERN_ERR "efivars: Malformed variable content\n"); + return -EINVAL; + } +@@ -447,7 +447,8 @@ static ssize_t efivar_create(struct file + } + + if ((attributes & ~EFI_VARIABLE_MASK) != 0 || +- efivar_validate(name, data, size) == false) { ++ efivar_validate(new_var->VendorGuid, name, data, ++ size) == false) { + printk(KERN_ERR "efivars: Malformed variable content\n"); + return -EINVAL; + } +@@ -540,38 +541,30 @@ static ssize_t efivar_delete(struct file + static int + efivar_create_sysfs_entry(struct efivar_entry *new_var) + { +- int i, short_name_size; ++ int short_name_size; + char *short_name; +- unsigned long variable_name_size; +- efi_char16_t *variable_name; ++ unsigned long utf8_name_size; ++ efi_char16_t *variable_name = new_var->var.VariableName; + int ret; + +- variable_name = new_var->var.VariableName; +- variable_name_size = ucs2_strlen(variable_name) * sizeof(efi_char16_t); +- + /* +- * Length of the variable bytes in ASCII, plus the '-' separator, ++ * Length of the variable bytes in UTF8, plus the '-' separator, + * plus the GUID, plus trailing NUL + */ +- short_name_size = variable_name_size / sizeof(efi_char16_t) +- + 1 + EFI_VARIABLE_GUID_LEN + 1; +- +- short_name = kzalloc(short_name_size, GFP_KERNEL); ++ utf8_name_size = ucs2_utf8size(variable_name); ++ short_name_size = utf8_name_size + 1 + EFI_VARIABLE_GUID_LEN + 1; + ++ short_name = kmalloc(short_name_size, GFP_KERNEL); + if (!short_name) + return -ENOMEM; + +- /* Convert Unicode to normal chars (assume top bits are 0), +- ala UTF-8 */ +- for (i=0; i < (int)(variable_name_size / sizeof(efi_char16_t)); i++) { +- short_name[i] = variable_name[i] & 0xFF; +- } ++ ucs2_as_utf8(short_name, variable_name, short_name_size); ++ + /* This is ugly, but necessary to separate one vendor's + private variables from another's. */ +- +- *(short_name + strlen(short_name)) = '-'; ++ short_name[utf8_name_size] = '-'; + efi_guid_to_str(&new_var->var.VendorGuid, +- short_name + strlen(short_name)); ++ short_name + utf8_name_size + 1); + + new_var->kobj.kset = efivars_kset; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/firmware/efi/vars.c linux-libre-4.4.7-gnu/drivers/firmware/efi/vars.c +--- linux-libre-4.4-gnu/drivers/firmware/efi/vars.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/firmware/efi/vars.c 2016-04-12 12:09:26.000000000 -0400 +@@ -165,67 +165,133 @@ validate_ascii_string(efi_char16_t *var_ + } + + struct variable_validate { ++ efi_guid_t vendor; + char *name; + bool (*validate)(efi_char16_t *var_name, int match, u8 *data, + unsigned long len); + }; + ++/* ++ * This is the list of variables we need to validate, as well as the ++ * whitelist for what we think is safe not to default to immutable. ++ * ++ * If it has a validate() method that's not NULL, it'll go into the ++ * validation routine. If not, it is assumed valid, but still used for ++ * whitelisting. ++ * ++ * Note that it's sorted by {vendor,name}, but globbed names must come after ++ * any other name with the same prefix. ++ */ + static const struct variable_validate variable_validate[] = { +- { "BootNext", validate_uint16 }, +- { "BootOrder", validate_boot_order }, +- { "DriverOrder", validate_boot_order }, +- { "Boot*", validate_load_option }, +- { "Driver*", validate_load_option }, +- { "ConIn", validate_device_path }, +- { "ConInDev", validate_device_path }, +- { "ConOut", validate_device_path }, +- { "ConOutDev", validate_device_path }, +- { "ErrOut", validate_device_path }, +- { "ErrOutDev", validate_device_path }, +- { "Timeout", validate_uint16 }, +- { "Lang", validate_ascii_string }, +- { "PlatformLang", validate_ascii_string }, +- { "", NULL }, ++ { EFI_GLOBAL_VARIABLE_GUID, "BootNext", validate_uint16 }, ++ { EFI_GLOBAL_VARIABLE_GUID, "BootOrder", validate_boot_order }, ++ { EFI_GLOBAL_VARIABLE_GUID, "Boot*", validate_load_option }, ++ { EFI_GLOBAL_VARIABLE_GUID, "DriverOrder", validate_boot_order }, ++ { EFI_GLOBAL_VARIABLE_GUID, "Driver*", validate_load_option }, ++ { EFI_GLOBAL_VARIABLE_GUID, "ConIn", validate_device_path }, ++ { EFI_GLOBAL_VARIABLE_GUID, "ConInDev", validate_device_path }, ++ { EFI_GLOBAL_VARIABLE_GUID, "ConOut", validate_device_path }, ++ { EFI_GLOBAL_VARIABLE_GUID, "ConOutDev", validate_device_path }, ++ { EFI_GLOBAL_VARIABLE_GUID, "ErrOut", validate_device_path }, ++ { EFI_GLOBAL_VARIABLE_GUID, "ErrOutDev", validate_device_path }, ++ { EFI_GLOBAL_VARIABLE_GUID, "Lang", validate_ascii_string }, ++ { EFI_GLOBAL_VARIABLE_GUID, "OsIndications", NULL }, ++ { EFI_GLOBAL_VARIABLE_GUID, "PlatformLang", validate_ascii_string }, ++ { EFI_GLOBAL_VARIABLE_GUID, "Timeout", validate_uint16 }, ++ { LINUX_EFI_CRASH_GUID, "*", NULL }, ++ { NULL_GUID, "", NULL }, + }; + ++static bool ++variable_matches(const char *var_name, size_t len, const char *match_name, ++ int *match) ++{ ++ for (*match = 0; ; (*match)++) { ++ char c = match_name[*match]; ++ char u = var_name[*match]; ++ ++ /* Wildcard in the matching name means we've matched */ ++ if (c == '*') ++ return true; ++ ++ /* Case sensitive match */ ++ if (!c && *match == len) ++ return true; ++ ++ if (c != u) ++ return false; ++ ++ if (!c) ++ return true; ++ } ++ return true; ++} ++ + bool +-efivar_validate(efi_char16_t *var_name, u8 *data, unsigned long len) ++efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data, ++ unsigned long data_size) + { + int i; +- u16 *unicode_name = var_name; ++ unsigned long utf8_size; ++ u8 *utf8_name; + +- for (i = 0; variable_validate[i].validate != NULL; i++) { +- const char *name = variable_validate[i].name; +- int match; ++ utf8_size = ucs2_utf8size(var_name); ++ utf8_name = kmalloc(utf8_size + 1, GFP_KERNEL); ++ if (!utf8_name) ++ return false; + +- for (match = 0; ; match++) { +- char c = name[match]; +- u16 u = unicode_name[match]; ++ ucs2_as_utf8(utf8_name, var_name, utf8_size); ++ utf8_name[utf8_size] = '\0'; + +- /* All special variables are plain ascii */ +- if (u > 127) +- return true; ++ for (i = 0; variable_validate[i].name[0] != '\0'; i++) { ++ const char *name = variable_validate[i].name; ++ int match = 0; + +- /* Wildcard in the matching name means we've matched */ +- if (c == '*') +- return variable_validate[i].validate(var_name, +- match, data, len); ++ if (efi_guidcmp(vendor, variable_validate[i].vendor)) ++ continue; + +- /* Case sensitive match */ +- if (c != u) ++ if (variable_matches(utf8_name, utf8_size+1, name, &match)) { ++ if (variable_validate[i].validate == NULL) + break; +- +- /* Reached the end of the string while matching */ +- if (!c) +- return variable_validate[i].validate(var_name, +- match, data, len); ++ kfree(utf8_name); ++ return variable_validate[i].validate(var_name, match, ++ data, data_size); + } + } +- ++ kfree(utf8_name); + return true; + } + EXPORT_SYMBOL_GPL(efivar_validate); + ++bool ++efivar_variable_is_removable(efi_guid_t vendor, const char *var_name, ++ size_t len) ++{ ++ int i; ++ bool found = false; ++ int match = 0; ++ ++ /* ++ * Check if our variable is in the validated variables list ++ */ ++ for (i = 0; variable_validate[i].name[0] != '\0'; i++) { ++ if (efi_guidcmp(variable_validate[i].vendor, vendor)) ++ continue; ++ ++ if (variable_matches(var_name, len, ++ variable_validate[i].name, &match)) { ++ found = true; ++ break; ++ } ++ } ++ ++ /* ++ * If it's in our list, it is removable. ++ */ ++ return found; ++} ++EXPORT_SYMBOL_GPL(efivar_variable_is_removable); ++ + static efi_status_t + check_var_size(u32 attributes, unsigned long size) + { +@@ -852,7 +918,7 @@ int efivar_entry_set_get_size(struct efi + + *set = false; + +- if (efivar_validate(name, data, *size) == false) ++ if (efivar_validate(*vendor, name, data, *size) == false) + return -EINVAL; + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c 2016-04-12 12:09:26.000000000 -0400 +@@ -63,6 +63,10 @@ bool amdgpu_has_atpx(void) { + return amdgpu_atpx_priv.atpx_detected; + } + ++bool amdgpu_has_atpx_dgpu_power_cntl(void) { ++ return amdgpu_atpx_priv.atpx.functions.power_cntl; ++} ++ + /** + * amdgpu_atpx_call - call an ATPX method + * +@@ -142,10 +146,6 @@ static void amdgpu_atpx_parse_functions( + */ + static int amdgpu_atpx_validate(struct amdgpu_atpx *atpx) + { +- /* make sure required functions are enabled */ +- /* dGPU power control is required */ +- atpx->functions.power_cntl = true; +- + if (atpx->functions.px_params) { + union acpi_object *info; + struct atpx_px_params output; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c 2016-04-12 12:09:26.000000000 -0400 +@@ -77,7 +77,7 @@ void amdgpu_connector_hotplug(struct drm + } else if (amdgpu_atombios_dp_needs_link_train(amdgpu_connector)) { + /* Don't try to start link training before we + * have the dpcd */ +- if (!amdgpu_atombios_dp_get_dpcd(amdgpu_connector)) ++ if (amdgpu_atombios_dp_get_dpcd(amdgpu_connector)) + return; + + /* set it to OFF so that drm_helper_connector_dpms() +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c 2016-04-12 12:09:26.000000000 -0400 +@@ -61,6 +61,12 @@ static const char *amdgpu_asic_name[] = + "LAST", + }; + ++#if defined(CONFIG_VGA_SWITCHEROO) ++bool amdgpu_has_atpx_dgpu_power_cntl(void); ++#else ++static inline bool amdgpu_has_atpx_dgpu_power_cntl(void) { return false; } ++#endif ++ + bool amdgpu_device_is_px(struct drm_device *dev) + { + struct amdgpu_device *adev = dev->dev_private; +@@ -1469,7 +1475,7 @@ int amdgpu_device_init(struct amdgpu_dev + + if (amdgpu_runtime_pm == 1) + runtime = true; +- if (amdgpu_device_is_px(ddev)) ++ if (amdgpu_device_is_px(ddev) && amdgpu_has_atpx_dgpu_power_cntl()) + runtime = true; + vga_switcheroo_register_client(adev->pdev, &amdgpu_switcheroo_ops, runtime); + if (runtime) +@@ -1744,15 +1750,20 @@ int amdgpu_resume_kms(struct drm_device + } + + /* post card */ +- amdgpu_atom_asic_init(adev->mode_info.atom_context); ++ if (!amdgpu_card_posted(adev)) ++ amdgpu_atom_asic_init(adev->mode_info.atom_context); + + r = amdgpu_resume(adev); ++ if (r) ++ DRM_ERROR("amdgpu_resume failed (%d).\n", r); + + amdgpu_fence_driver_resume(adev); + +- r = amdgpu_ib_ring_tests(adev); +- if (r) +- DRM_ERROR("ib ring test failed (%d).\n", r); ++ if (resume) { ++ r = amdgpu_ib_ring_tests(adev); ++ if (r) ++ DRM_ERROR("ib ring test failed (%d).\n", r); ++ } + + r = amdgpu_late_init(adev); + if (r) +@@ -1788,6 +1799,7 @@ int amdgpu_resume_kms(struct drm_device + } + + drm_kms_helper_poll_enable(dev); ++ drm_helper_hpd_irq_event(dev); + + if (fbcon) { + amdgpu_fbdev_set_suspend(adev, 0); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c 2016-04-12 12:09:26.000000000 -0400 +@@ -72,8 +72,8 @@ static void amdgpu_flip_work_func(struct + + struct drm_crtc *crtc = &amdgpuCrtc->base; + unsigned long flags; +- unsigned i; +- int vpos, hpos, stat, min_udelay; ++ unsigned i, repcnt = 4; ++ int vpos, hpos, stat, min_udelay = 0; + struct drm_vblank_crtc *vblank = &crtc->dev->vblank[work->crtc_id]; + + amdgpu_flip_wait_fence(adev, &work->excl); +@@ -96,7 +96,7 @@ static void amdgpu_flip_work_func(struct + * In practice this won't execute very often unless on very fast + * machines because the time window for this to happen is very small. + */ +- for (;;) { ++ while (amdgpuCrtc->enabled && --repcnt) { + /* GET_DISTANCE_TO_VBLANKSTART returns distance to real vblank + * start in hpos, and to the "fudged earlier" vblank start in + * vpos. +@@ -112,12 +112,24 @@ static void amdgpu_flip_work_func(struct + break; + + /* Sleep at least until estimated real start of hw vblank */ +- spin_unlock_irqrestore(&crtc->dev->event_lock, flags); + min_udelay = (-hpos + 1) * max(vblank->linedur_ns / 1000, 5); ++ if (min_udelay > vblank->framedur_ns / 2000) { ++ /* Don't wait ridiculously long - something is wrong */ ++ repcnt = 0; ++ break; ++ } ++ spin_unlock_irqrestore(&crtc->dev->event_lock, flags); + usleep_range(min_udelay, 2 * min_udelay); + spin_lock_irqsave(&crtc->dev->event_lock, flags); + }; + ++ if (!repcnt) ++ DRM_DEBUG_DRIVER("Delay problem on crtc %d: min_udelay %d, " ++ "framedur %d, linedur %d, stat %d, vpos %d, " ++ "hpos %d\n", work->crtc_id, min_udelay, ++ vblank->framedur_ns / 1000, ++ vblank->linedur_ns / 1000, stat, vpos, hpos); ++ + /* do the flip (mmio) */ + adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base); + /* set the flip status */ +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c 2016-04-12 12:09:26.000000000 -0400 +@@ -250,11 +250,11 @@ static struct pci_device_id pciidlist[] + {0x1002, 0x985F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_MULLINS|AMD_IS_MOBILITY|AMD_IS_APU}, + #endif + /* topaz */ +- {0x1002, 0x6900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT}, +- {0x1002, 0x6901, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT}, +- {0x1002, 0x6902, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT}, +- {0x1002, 0x6903, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT}, +- {0x1002, 0x6907, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT}, ++ {0x1002, 0x6900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ}, ++ {0x1002, 0x6901, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ}, ++ {0x1002, 0x6902, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ}, ++ {0x1002, 0x6903, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ}, ++ {0x1002, 0x6907, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ}, + /* tonga */ + {0x1002, 0x6920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TONGA}, + {0x1002, 0x6921, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TONGA}, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu.h linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu.h +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu.h 2016-04-12 12:09:26.000000000 -0400 +@@ -604,8 +604,6 @@ struct amdgpu_sa_manager { + uint32_t align; + }; + +-struct amdgpu_sa_bo; +- + /* sub-allocation buffer */ + struct amdgpu_sa_bo { + struct list_head olist; +@@ -2314,6 +2312,8 @@ bool amdgpu_ttm_bo_is_amdgpu_bo(struct t + int amdgpu_ttm_tt_set_userptr(struct ttm_tt *ttm, uint64_t addr, + uint32_t flags); + bool amdgpu_ttm_tt_has_userptr(struct ttm_tt *ttm); ++bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start, ++ unsigned long end); + bool amdgpu_ttm_tt_is_readonly(struct ttm_tt *ttm); + uint32_t amdgpu_ttm_tt_pte_flags(struct amdgpu_device *adev, struct ttm_tt *ttm, + struct ttm_mem_reg *mem); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c 2016-04-12 12:09:26.000000000 -0400 +@@ -142,7 +142,8 @@ static void amdgpu_mn_invalidate_range_s + + list_for_each_entry(bo, &node->bos, mn_list) { + +- if (!bo->tbo.ttm || bo->tbo.ttm->state != tt_bound) ++ if (!amdgpu_ttm_tt_affect_userptr(bo->tbo.ttm, start, ++ end)) + continue; + + r = amdgpu_bo_reserve(bo, true); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c 2016-04-12 12:09:26.000000000 -0400 +@@ -33,6 +33,7 @@ + #include <linux/slab.h> + #include <drm/drmP.h> + #include <drm/amdgpu_drm.h> ++#include <drm/drm_cache.h> + #include "amdgpu.h" + #include "amdgpu_trace.h" + +@@ -261,6 +262,13 @@ int amdgpu_bo_create_restricted(struct a + AMDGPU_GEM_DOMAIN_OA); + + bo->flags = flags; ++ ++ /* For architectures that don't support WC memory, ++ * mask out the WC flag from the BO ++ */ ++ if (!drm_arch_can_wc_memory()) ++ bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC; ++ + amdgpu_fill_placement_to_bo(bo, placement); + /* Kernel allocation are uninterruptible */ + r = ttm_bo_init(&adev->mman.bdev, &bo->tbo, size, type, +@@ -399,7 +407,8 @@ int amdgpu_bo_pin_restricted(struct amdg + } + if (fpfn > bo->placements[i].fpfn) + bo->placements[i].fpfn = fpfn; +- if (lpfn && lpfn < bo->placements[i].lpfn) ++ if (!bo->placements[i].lpfn || ++ (lpfn && lpfn < bo->placements[i].lpfn)) + bo->placements[i].lpfn = lpfn; + bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -595,11 +595,6 @@ force: + + /* update display watermarks based on new power state */ + amdgpu_display_bandwidth_update(adev); +- /* update displays */ +- amdgpu_dpm_display_configuration_changed(adev); +- +- adev->pm.dpm.current_active_crtcs = adev->pm.dpm.new_active_crtcs; +- adev->pm.dpm.current_active_crtc_count = adev->pm.dpm.new_active_crtc_count; + + /* wait for the rings to drain */ + for (i = 0; i < AMDGPU_MAX_RINGS; i++) { +@@ -616,6 +611,12 @@ force: + + amdgpu_dpm_post_set_power_state(adev); + ++ /* update displays */ ++ amdgpu_dpm_display_configuration_changed(adev); ++ ++ adev->pm.dpm.current_active_crtcs = adev->pm.dpm.new_active_crtcs; ++ adev->pm.dpm.current_active_crtc_count = adev->pm.dpm.new_active_crtc_count; ++ + if (adev->pm.funcs->force_performance_level) { + if (adev->pm.dpm.thermal_active) { + enum amdgpu_dpm_forced_level level = adev->pm.dpm.forced_level; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c 2016-04-12 12:09:26.000000000 -0400 +@@ -354,12 +354,15 @@ int amdgpu_sa_bo_new(struct amdgpu_sa_ma + + for (i = 0, count = 0; i < AMDGPU_MAX_RINGS; ++i) + if (fences[i]) +- fences[count++] = fences[i]; ++ fences[count++] = fence_get(fences[i]); + + if (count) { + spin_unlock(&sa_manager->wq.lock); + t = fence_wait_any_timeout(fences, count, false, + MAX_SCHEDULE_TIMEOUT); ++ for (i = 0; i < count; ++i) ++ fence_put(fences[i]); ++ + r = (t > 0) ? 0 : t; + spin_lock(&sa_manager->wq.lock); + } else { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c 2016-04-12 12:09:26.000000000 -0400 +@@ -293,7 +293,8 @@ int amdgpu_sync_rings(struct amdgpu_sync + fence = to_amdgpu_fence(sync->sync_to[i]); + + /* check if we really need to sync */ +- if (!amdgpu_fence_need_sync(fence, ring)) ++ if (!amdgpu_enable_scheduler && ++ !amdgpu_fence_need_sync(fence, ring)) + continue; + + /* prevent GPU deadlocks */ +@@ -303,7 +304,7 @@ int amdgpu_sync_rings(struct amdgpu_sync + } + + if (amdgpu_enable_scheduler || !amdgpu_enable_semaphores) { +- r = fence_wait(&fence->base, true); ++ r = fence_wait(sync->sync_to[i], true); + if (r) + return r; + continue; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -712,7 +712,7 @@ static int amdgpu_ttm_tt_populate(struct + 0, PAGE_SIZE, + PCI_DMA_BIDIRECTIONAL); + if (pci_dma_mapping_error(adev->pdev, gtt->ttm.dma_address[i])) { +- while (--i) { ++ while (i--) { + pci_unmap_page(adev->pdev, gtt->ttm.dma_address[i], + PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); + gtt->ttm.dma_address[i] = 0; +@@ -783,6 +783,25 @@ bool amdgpu_ttm_tt_has_userptr(struct tt + return !!gtt->userptr; + } + ++bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start, ++ unsigned long end) ++{ ++ struct amdgpu_ttm_tt *gtt = (void *)ttm; ++ unsigned long size; ++ ++ if (gtt == NULL) ++ return false; ++ ++ if (gtt->ttm.ttm.state != tt_bound || !gtt->userptr) ++ return false; ++ ++ size = (unsigned long)gtt->ttm.ttm.num_pages * PAGE_SIZE; ++ if (gtt->userptr > end || gtt->userptr + size <= start) ++ return false; ++ ++ return true; ++} ++ + bool amdgpu_ttm_tt_is_readonly(struct ttm_tt *ttm) + { + struct amdgpu_ttm_tt *gtt = (void *)ttm; +@@ -808,7 +827,7 @@ uint32_t amdgpu_ttm_tt_pte_flags(struct + flags |= AMDGPU_PTE_SNOOPED; + } + +- if (adev->asic_type >= CHIP_TOPAZ) ++ if (adev->asic_type >= CHIP_TONGA) + flags |= AMDGPU_PTE_EXECUTABLE; + + flags |= AMDGPU_PTE_READABLE; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1010,13 +1010,13 @@ int amdgpu_vm_bo_map(struct amdgpu_devic + return -EINVAL; + + /* make sure object fit at this offset */ +- eaddr = saddr + size; ++ eaddr = saddr + size - 1; + if ((saddr >= eaddr) || (offset + size > amdgpu_bo_size(bo_va->bo))) + return -EINVAL; + + last_pfn = eaddr / AMDGPU_GPU_PAGE_SIZE; +- if (last_pfn > adev->vm_manager.max_pfn) { +- dev_err(adev->dev, "va above limit (0x%08X > 0x%08X)\n", ++ if (last_pfn >= adev->vm_manager.max_pfn) { ++ dev_err(adev->dev, "va above limit (0x%08X >= 0x%08X)\n", + last_pfn, adev->vm_manager.max_pfn); + return -EINVAL; + } +@@ -1025,7 +1025,7 @@ int amdgpu_vm_bo_map(struct amdgpu_devic + eaddr /= AMDGPU_GPU_PAGE_SIZE; + + spin_lock(&vm->it_lock); +- it = interval_tree_iter_first(&vm->va, saddr, eaddr - 1); ++ it = interval_tree_iter_first(&vm->va, saddr, eaddr); + spin_unlock(&vm->it_lock); + if (it) { + struct amdgpu_bo_va_mapping *tmp; +@@ -1046,7 +1046,7 @@ int amdgpu_vm_bo_map(struct amdgpu_devic + + INIT_LIST_HEAD(&mapping->list); + mapping->it.start = saddr; +- mapping->it.last = eaddr - 1; ++ mapping->it.last = eaddr; + mapping->offset = offset; + mapping->flags = flags; + +@@ -1248,7 +1248,7 @@ int amdgpu_vm_init(struct amdgpu_device + { + const unsigned align = min(AMDGPU_VM_PTB_ALIGN_SIZE, + AMDGPU_VM_PTE_COUNT * 8); +- unsigned pd_size, pd_entries, pts_size; ++ unsigned pd_size, pd_entries; + int i, r; + + for (i = 0; i < AMDGPU_MAX_RINGS; ++i) { +@@ -1266,8 +1266,7 @@ int amdgpu_vm_init(struct amdgpu_device + pd_entries = amdgpu_vm_num_pdes(adev); + + /* allocate page table array */ +- pts_size = pd_entries * sizeof(struct amdgpu_vm_pt); +- vm->page_tables = kzalloc(pts_size, GFP_KERNEL); ++ vm->page_tables = drm_calloc_large(pd_entries, sizeof(struct amdgpu_vm_pt)); + if (vm->page_tables == NULL) { + DRM_ERROR("Cannot allocate memory for page table array\n"); + return -ENOMEM; +@@ -1327,7 +1326,7 @@ void amdgpu_vm_fini(struct amdgpu_device + + for (i = 0; i < amdgpu_vm_num_pdes(adev); i++) + amdgpu_bo_unref(&vm->page_tables[i].bo); +- kfree(vm->page_tables); ++ drm_free_large(vm->page_tables); + + amdgpu_bo_unref(&vm->page_directory); + fence_put(vm->page_directory_fence); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c 2016-01-10 20:56:39.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c 2016-04-12 21:14:02.000000000 -0400 +@@ -3599,6 +3599,19 @@ static void gfx_v7_0_ring_emit_vm_flush( + unsigned vm_id, uint64_t pd_addr) + { + int usepfp = (ring->type == AMDGPU_RING_TYPE_GFX); ++ uint32_t seq = ring->fence_drv.sync_seq; ++ uint64_t addr = ring->fence_drv.gpu_addr; ++ ++ amdgpu_ring_write(ring, PACKET3(PACKET3_WAIT_REG_MEM, 5)); ++ amdgpu_ring_write(ring, (WAIT_REG_MEM_MEM_SPACE(1) | /* memory */ ++ WAIT_REG_MEM_FUNCTION(3) | /* equal */ ++ WAIT_REG_MEM_ENGINE(usepfp))); /* pfp or me */ ++ amdgpu_ring_write(ring, addr & 0xfffffffc); ++ amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff); ++ amdgpu_ring_write(ring, seq); ++ amdgpu_ring_write(ring, 0xffffffff); ++ amdgpu_ring_write(ring, 4); /* poll interval */ ++ + if (usepfp) { + /* synce CE with ME to prevent CE fetch CEIB before context switch done */ + amdgpu_ring_write(ring, PACKET3(PACKET3_SWITCH_BUFFER, 0)); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c 2016-01-10 20:56:07.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c 2016-04-12 21:13:26.000000000 -0400 +@@ -775,7 +775,8 @@ static int gfx_v8_0_init_microcode(struc + adev->gfx.mec_fw_version = le32_to_cpu(cp_hdr->header.ucode_version); + adev->gfx.mec_feature_version = le32_to_cpu(cp_hdr->ucode_feature_version); + +- if (adev->asic_type != CHIP_STONEY) { ++ if ((adev->asic_type != CHIP_STONEY) && ++ (adev->asic_type != CHIP_TOPAZ)) { + snprintf(fw_name, sizeof(fw_name), "/*(DEBLOBBED)*/", chip_name); + err = reject_firmware(&adev->gfx.mec2_fw, fw_name, adev->dev); + if (!err) { +@@ -4649,7 +4650,8 @@ static void gfx_v8_0_ring_emit_vm_flush( + + amdgpu_ring_write(ring, PACKET3(PACKET3_WAIT_REG_MEM, 5)); + amdgpu_ring_write(ring, (WAIT_REG_MEM_MEM_SPACE(1) | /* memory */ +- WAIT_REG_MEM_FUNCTION(3))); /* equal */ ++ WAIT_REG_MEM_FUNCTION(3) | /* equal */ ++ WAIT_REG_MEM_ENGINE(usepfp))); /* pfp or me */ + amdgpu_ring_write(ring, addr & 0xfffffffc); + amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff); + amdgpu_ring_write(ring, seq); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c 2016-01-10 20:56:42.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c 2016-04-12 21:14:16.000000000 -0400 +@@ -42,8 +42,37 @@ static void gmc_v7_0_set_irq_funcs(struc + + /*(DEBLOBBED)*/ + ++static const u32 golden_settings_iceland_a11[] = ++{ ++ mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff, ++ mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff, ++ mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff, ++ mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff ++}; ++ ++static const u32 iceland_mgcg_cgcg_init[] = ++{ ++ mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 ++}; ++ ++static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev) ++{ ++ switch (adev->asic_type) { ++ case CHIP_TOPAZ: ++ amdgpu_program_register_sequence(adev, ++ iceland_mgcg_cgcg_init, ++ (const u32)ARRAY_SIZE(iceland_mgcg_cgcg_init)); ++ amdgpu_program_register_sequence(adev, ++ golden_settings_iceland_a11, ++ (const u32)ARRAY_SIZE(golden_settings_iceland_a11)); ++ break; ++ default: ++ break; ++ } ++} ++ + /** +- * gmc8_mc_wait_for_idle - wait for MC idle callback. ++ * gmc7_mc_wait_for_idle - wait for MC idle callback. + * + * @adev: amdgpu_device pointer + * +@@ -131,13 +160,20 @@ static int gmc_v7_0_init_microcode(struc + case CHIP_HAWAII: + chip_name = "hawaii"; + break; ++ case CHIP_TOPAZ: ++ chip_name = "topaz"; ++ break; + case CHIP_KAVERI: + case CHIP_KABINI: + return 0; + default: BUG(); + } + +- snprintf(fw_name, sizeof(fw_name), "/*(DEBLOBBED)*/", chip_name); ++ if (adev->asic_type == CHIP_TOPAZ) ++ snprintf(fw_name, sizeof(fw_name), "/*(DEBLOBBED)*/", chip_name); ++ else ++ snprintf(fw_name, sizeof(fw_name), "/*(DEBLOBBED)*/", chip_name); ++ + err = reject_firmware(&adev->mc.fw, fw_name, adev->dev); + if (err) + goto out; +@@ -979,6 +1015,8 @@ static int gmc_v7_0_hw_init(void *handle + int r; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + ++ gmc_v7_0_init_golden_registers(adev); ++ + gmc_v7_0_mc_program(adev); + + if (!(adev->flags & AMD_IS_APU)) { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c 2016-01-10 20:56:10.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c 2016-04-12 21:13:29.000000000 -0400 +@@ -73,19 +73,6 @@ static const u32 fiji_mgcg_cgcg_init[] = + mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 + }; + +-static const u32 golden_settings_iceland_a11[] = +-{ +- mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff, +- mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff, +- mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff, +- mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff +-}; +- +-static const u32 iceland_mgcg_cgcg_init[] = +-{ +- mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 +-}; +- + static const u32 cz_mgcg_cgcg_init[] = + { + mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 +@@ -100,14 +87,6 @@ static const u32 stoney_mgcg_cgcg_init[] + static void gmc_v8_0_init_golden_registers(struct amdgpu_device *adev) + { + switch (adev->asic_type) { +- case CHIP_TOPAZ: +- amdgpu_program_register_sequence(adev, +- iceland_mgcg_cgcg_init, +- (const u32)ARRAY_SIZE(iceland_mgcg_cgcg_init)); +- amdgpu_program_register_sequence(adev, +- golden_settings_iceland_a11, +- (const u32)ARRAY_SIZE(golden_settings_iceland_a11)); +- break; + case CHIP_FIJI: + amdgpu_program_register_sequence(adev, + fiji_mgcg_cgcg_init, +@@ -227,15 +206,10 @@ static int gmc_v8_0_init_microcode(struc + DRM_DEBUG("\n"); + + switch (adev->asic_type) { +- case CHIP_TOPAZ: +- chip_name = "topaz"; +- break; + case CHIP_TONGA: + chip_name = "tonga"; + break; + case CHIP_FIJI: +- chip_name = "fiji"; +- break; + case CHIP_CARRIZO: + case CHIP_STONEY: + return 0; +@@ -1001,7 +975,7 @@ static int gmc_v8_0_hw_init(void *handle + + gmc_v8_0_mc_program(adev); + +- if (!(adev->flags & AMD_IS_APU)) { ++ if (adev->asic_type == CHIP_TONGA) { + r = gmc_v8_0_mc_load_microcode(adev); + if (r) { + DRM_ERROR("Failed to load MC firmware!\n"); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/iceland_smc.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/iceland_smc.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/iceland_smc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/iceland_smc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -432,7 +432,7 @@ static uint32_t iceland_smu_get_mask_for + case AMDGPU_UCODE_ID_CP_ME: + return UCODE_ID_CP_ME_MASK; + case AMDGPU_UCODE_ID_CP_MEC1: +- return UCODE_ID_CP_MEC_MASK | UCODE_ID_CP_MEC_JT1_MASK | UCODE_ID_CP_MEC_JT2_MASK; ++ return UCODE_ID_CP_MEC_MASK | UCODE_ID_CP_MEC_JT1_MASK; + case AMDGPU_UCODE_ID_CP_MEC2: + return UCODE_ID_CP_MEC_MASK; + case AMDGPU_UCODE_ID_RLC_G: +@@ -522,12 +522,6 @@ static int iceland_smu_request_load_fw(s + return -EINVAL; + } + +- if (iceland_smu_populate_single_firmware_entry(adev, UCODE_ID_CP_MEC_JT2, +- &toc->entry[toc->num_entries++])) { +- DRM_ERROR("Failed to get firmware entry for MEC_JT2\n"); +- return -EINVAL; +- } +- + if (iceland_smu_populate_single_firmware_entry(adev, UCODE_ID_SDMA0, + &toc->entry[toc->num_entries++])) { + DRM_ERROR("Failed to get firmware entry for SDMA0\n"); +@@ -550,8 +544,8 @@ static int iceland_smu_request_load_fw(s + UCODE_ID_CP_ME_MASK | + UCODE_ID_CP_PFP_MASK | + UCODE_ID_CP_MEC_MASK | +- UCODE_ID_CP_MEC_JT1_MASK | +- UCODE_ID_CP_MEC_JT2_MASK; ++ UCODE_ID_CP_MEC_JT1_MASK; ++ + + if (iceland_send_msg_to_smc_with_parameter_without_waiting(adev, PPSMC_MSG_LoadUcodes, fw_to_load)) { + DRM_ERROR("Fail to request SMU load ucode\n"); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/Makefile linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/Makefile +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/Makefile 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/Makefile 2016-04-12 12:09:26.000000000 -0400 +@@ -22,7 +22,7 @@ amdgpu-y += amdgpu_device.o amdgpu_kms.o + amdgpu_ucode.o amdgpu_bo_list.o amdgpu_ctx.o amdgpu_sync.o + + # add asic specific block +-amdgpu-$(CONFIG_DRM_AMDGPU_CIK)+= cik.o gmc_v7_0.o cik_ih.o kv_smc.o kv_dpm.o \ ++amdgpu-$(CONFIG_DRM_AMDGPU_CIK)+= cik.o cik_ih.o kv_smc.o kv_dpm.o \ + ci_smc.o ci_dpm.o dce_v8_0.o gfx_v7_0.o cik_sdma.o uvd_v4_2.o vce_v2_0.o \ + amdgpu_amdkfd_gfx_v7.o + +@@ -31,6 +31,7 @@ amdgpu-y += \ + + # add GMC block + amdgpu-y += \ ++ gmc_v7_0.o \ + gmc_v8_0.o + + # add IH block +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c 2016-01-10 20:56:15.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c 2016-04-12 21:13:34.000000000 -0400 +@@ -32,8 +32,8 @@ + #include "oss/oss_2_4_d.h" + #include "oss/oss_2_4_sh_mask.h" + +-#include "gmc/gmc_8_1_d.h" +-#include "gmc/gmc_8_1_sh_mask.h" ++#include "gmc/gmc_7_1_d.h" ++#include "gmc/gmc_7_1_sh_mask.h" + + #include "gca/gfx_8_0_d.h" + #include "gca/gfx_8_0_enum.h" +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/tonga_dpm.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/tonga_dpm.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/tonga_dpm.c 2016-01-10 20:56:25.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/tonga_dpm.c 2016-04-12 21:13:44.000000000 -0400 +@@ -122,25 +122,12 @@ static int tonga_dpm_hw_fini(void *handl + + static int tonga_dpm_suspend(void *handle) + { +- return 0; ++ return tonga_dpm_hw_fini(handle); + } + + static int tonga_dpm_resume(void *handle) + { +- int ret; +- struct amdgpu_device *adev = (struct amdgpu_device *)handle; +- +- mutex_lock(&adev->pm.mutex); +- +- ret = tonga_smu_start(adev); +- if (ret) { +- DRM_ERROR("SMU start failed\n"); +- goto fail; +- } +- +-fail: +- mutex_unlock(&adev->pm.mutex); +- return ret; ++ return tonga_dpm_hw_init(handle); + } + + static int tonga_dpm_set_clockgating_state(void *handle, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/vi.c linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/vi.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/vi.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/amd/amdgpu/vi.c 2016-04-12 12:09:26.000000000 -0400 +@@ -60,6 +60,7 @@ + #include "vi.h" + #include "vi_dpm.h" + #include "gmc_v8_0.h" ++#include "gmc_v7_0.h" + #include "gfx_v8_0.h" + #include "sdma_v2_4.h" + #include "sdma_v3_0.h" +@@ -1081,10 +1082,10 @@ static const struct amdgpu_ip_block_vers + }, + { + .type = AMD_IP_BLOCK_TYPE_GMC, +- .major = 8, +- .minor = 0, ++ .major = 7, ++ .minor = 4, + .rev = 0, +- .funcs = &gmc_v8_0_ip_funcs, ++ .funcs = &gmc_v7_0_ip_funcs, + }, + { + .type = AMD_IP_BLOCK_TYPE_IH, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/ast/ast_main.c linux-libre-4.4.7-gnu/drivers/gpu/drm/ast/ast_main.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/ast/ast_main.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/ast/ast_main.c 2016-04-12 12:09:26.000000000 -0400 +@@ -227,7 +227,7 @@ static int ast_get_dram_info(struct drm_ + } while (ast_read32(ast, 0x10000) != 0x01); + data = ast_read32(ast, 0x10004); + +- if (data & 0x400) ++ if (data & 0x40) + ast->dram_bus_width = 16; + else + ast->dram_bus_width = 32; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_dp_mst_topology.c linux-libre-4.4.7-gnu/drivers/gpu/drm/drm_dp_mst_topology.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_dp_mst_topology.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/drm_dp_mst_topology.c 2016-04-12 12:09:26.000000000 -0400 +@@ -798,6 +798,18 @@ static struct drm_dp_mst_branch *drm_dp_ + return mstb; + } + ++static void drm_dp_free_mst_port(struct kref *kref); ++ ++static void drm_dp_free_mst_branch_device(struct kref *kref) ++{ ++ struct drm_dp_mst_branch *mstb = container_of(kref, struct drm_dp_mst_branch, kref); ++ if (mstb->port_parent) { ++ if (list_empty(&mstb->port_parent->next)) ++ kref_put(&mstb->port_parent->kref, drm_dp_free_mst_port); ++ } ++ kfree(mstb); ++} ++ + static void drm_dp_destroy_mst_branch_device(struct kref *kref) + { + struct drm_dp_mst_branch *mstb = container_of(kref, struct drm_dp_mst_branch, kref); +@@ -805,6 +817,15 @@ static void drm_dp_destroy_mst_branch_de + bool wake_tx = false; + + /* ++ * init kref again to be used by ports to remove mst branch when it is ++ * not needed anymore ++ */ ++ kref_init(kref); ++ ++ if (mstb->port_parent && list_empty(&mstb->port_parent->next)) ++ kref_get(&mstb->port_parent->kref); ++ ++ /* + * destroy all ports - don't need lock + * as there are no more references to the mst branch + * device at this point. +@@ -830,7 +851,8 @@ static void drm_dp_destroy_mst_branch_de + + if (wake_tx) + wake_up(&mstb->mgr->tx_waitq); +- kfree(mstb); ++ ++ kref_put(kref, drm_dp_free_mst_branch_device); + } + + static void drm_dp_put_mst_branch_device(struct drm_dp_mst_branch *mstb) +@@ -878,6 +900,7 @@ static void drm_dp_destroy_port(struct k + * from an EDID retrieval */ + + mutex_lock(&mgr->destroy_connector_lock); ++ kref_get(&port->parent->kref); + list_add(&port->next, &mgr->destroy_connector_list); + mutex_unlock(&mgr->destroy_connector_lock); + schedule_work(&mgr->destroy_connector_work); +@@ -973,17 +996,17 @@ static struct drm_dp_mst_port *drm_dp_ge + static u8 drm_dp_calculate_rad(struct drm_dp_mst_port *port, + u8 *rad) + { +- int lct = port->parent->lct; ++ int parent_lct = port->parent->lct; + int shift = 4; +- int idx = lct / 2; +- if (lct > 1) { +- memcpy(rad, port->parent->rad, idx); +- shift = (lct % 2) ? 4 : 0; ++ int idx = (parent_lct - 1) / 2; ++ if (parent_lct > 1) { ++ memcpy(rad, port->parent->rad, idx + 1); ++ shift = (parent_lct % 2) ? 4 : 0; + } else + rad[0] = 0; + + rad[idx] |= port->port_num << shift; +- return lct + 1; ++ return parent_lct + 1; + } + + /* +@@ -1013,18 +1036,27 @@ static bool drm_dp_port_setup_pdt(struct + return send_link; + } + +-static void drm_dp_check_port_guid(struct drm_dp_mst_branch *mstb, +- struct drm_dp_mst_port *port) ++static void drm_dp_check_mstb_guid(struct drm_dp_mst_branch *mstb, u8 *guid) + { + int ret; +- if (port->dpcd_rev >= 0x12) { +- port->guid_valid = drm_dp_validate_guid(mstb->mgr, port->guid); +- if (!port->guid_valid) { +- ret = drm_dp_send_dpcd_write(mstb->mgr, +- port, +- DP_GUID, +- 16, port->guid); +- port->guid_valid = true; ++ ++ memcpy(mstb->guid, guid, 16); ++ ++ if (!drm_dp_validate_guid(mstb->mgr, mstb->guid)) { ++ if (mstb->port_parent) { ++ ret = drm_dp_send_dpcd_write( ++ mstb->mgr, ++ mstb->port_parent, ++ DP_GUID, ++ 16, ++ mstb->guid); ++ } else { ++ ++ ret = drm_dp_dpcd_write( ++ mstb->mgr->aux, ++ DP_GUID, ++ mstb->guid, ++ 16); + } + } + } +@@ -1039,7 +1071,7 @@ static void build_mst_prop_path(const st + snprintf(proppath, proppath_size, "mst:%d", mstb->mgr->conn_base_id); + for (i = 0; i < (mstb->lct - 1); i++) { + int shift = (i % 2) ? 0 : 4; +- int port_num = mstb->rad[i / 2] >> shift; ++ int port_num = (mstb->rad[i / 2] >> shift) & 0xf; + snprintf(temp, sizeof(temp), "-%d", port_num); + strlcat(proppath, temp, proppath_size); + } +@@ -1081,7 +1113,6 @@ static void drm_dp_add_port(struct drm_d + port->dpcd_rev = port_msg->dpcd_revision; + port->num_sdp_streams = port_msg->num_sdp_streams; + port->num_sdp_stream_sinks = port_msg->num_sdp_stream_sinks; +- memcpy(port->guid, port_msg->peer_guid, 16); + + /* manage mstb port lists with mgr lock - take a reference + for this list */ +@@ -1094,11 +1125,9 @@ static void drm_dp_add_port(struct drm_d + + if (old_ddps != port->ddps) { + if (port->ddps) { +- drm_dp_check_port_guid(mstb, port); + if (!port->input) + drm_dp_send_enum_path_resources(mstb->mgr, mstb, port); + } else { +- port->guid_valid = false; + port->available_pbn = 0; + } + } +@@ -1157,10 +1186,8 @@ static void drm_dp_update_port(struct dr + + if (old_ddps != port->ddps) { + if (port->ddps) { +- drm_dp_check_port_guid(mstb, port); + dowork = true; + } else { +- port->guid_valid = false; + port->available_pbn = 0; + } + } +@@ -1190,7 +1217,7 @@ static struct drm_dp_mst_branch *drm_dp_ + + for (i = 0; i < lct - 1; i++) { + int shift = (i % 2) ? 0 : 4; +- int port_num = rad[i / 2] >> shift; ++ int port_num = (rad[i / 2] >> shift) & 0xf; + + list_for_each_entry(port, &mstb->ports, next) { + if (port->port_num == port_num) { +@@ -1210,6 +1237,48 @@ out: + return mstb; + } + ++static struct drm_dp_mst_branch *get_mst_branch_device_by_guid_helper( ++ struct drm_dp_mst_branch *mstb, ++ uint8_t *guid) ++{ ++ struct drm_dp_mst_branch *found_mstb; ++ struct drm_dp_mst_port *port; ++ ++ if (memcmp(mstb->guid, guid, 16) == 0) ++ return mstb; ++ ++ ++ list_for_each_entry(port, &mstb->ports, next) { ++ if (!port->mstb) ++ continue; ++ ++ found_mstb = get_mst_branch_device_by_guid_helper(port->mstb, guid); ++ ++ if (found_mstb) ++ return found_mstb; ++ } ++ ++ return NULL; ++} ++ ++static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device_by_guid( ++ struct drm_dp_mst_topology_mgr *mgr, ++ uint8_t *guid) ++{ ++ struct drm_dp_mst_branch *mstb; ++ ++ /* find the port by iterating down */ ++ mutex_lock(&mgr->lock); ++ ++ mstb = get_mst_branch_device_by_guid_helper(mgr->mst_primary, guid); ++ ++ if (mstb) ++ kref_get(&mstb->kref); ++ ++ mutex_unlock(&mgr->lock); ++ return mstb; ++} ++ + static void drm_dp_check_and_send_link_address(struct drm_dp_mst_topology_mgr *mgr, + struct drm_dp_mst_branch *mstb) + { +@@ -1320,6 +1389,7 @@ static int set_hdr_from_dst_qlock(struct + struct drm_dp_sideband_msg_tx *txmsg) + { + struct drm_dp_mst_branch *mstb = txmsg->dst; ++ u8 req_type; + + /* both msg slots are full */ + if (txmsg->seqno == -1) { +@@ -1336,7 +1406,13 @@ static int set_hdr_from_dst_qlock(struct + txmsg->seqno = 1; + mstb->tx_slots[txmsg->seqno] = txmsg; + } +- hdr->broadcast = 0; ++ ++ req_type = txmsg->msg[0] & 0x7f; ++ if (req_type == DP_CONNECTION_STATUS_NOTIFY || ++ req_type == DP_RESOURCE_STATUS_NOTIFY) ++ hdr->broadcast = 1; ++ else ++ hdr->broadcast = 0; + hdr->path_msg = txmsg->path_msg; + hdr->lct = mstb->lct; + hdr->lcr = mstb->lct - 1; +@@ -1438,26 +1514,18 @@ static void process_single_down_tx_qlock + } + + /* called holding qlock */ +-static void process_single_up_tx_qlock(struct drm_dp_mst_topology_mgr *mgr) ++static void process_single_up_tx_qlock(struct drm_dp_mst_topology_mgr *mgr, ++ struct drm_dp_sideband_msg_tx *txmsg) + { +- struct drm_dp_sideband_msg_tx *txmsg; + int ret; + + /* construct a chunk from the first msg in the tx_msg queue */ +- if (list_empty(&mgr->tx_msg_upq)) { +- mgr->tx_up_in_progress = false; +- return; +- } +- +- txmsg = list_first_entry(&mgr->tx_msg_upq, struct drm_dp_sideband_msg_tx, next); + ret = process_single_tx_qlock(mgr, txmsg, true); +- if (ret == 1) { +- /* up txmsgs aren't put in slots - so free after we send it */ +- list_del(&txmsg->next); +- kfree(txmsg); +- } else if (ret) ++ ++ if (ret != 1) + DRM_DEBUG_KMS("failed to send msg in q %d\n", ret); +- mgr->tx_up_in_progress = true; ++ ++ txmsg->dst->tx_slots[txmsg->seqno] = NULL; + } + + static void drm_dp_queue_down_tx(struct drm_dp_mst_topology_mgr *mgr, +@@ -1507,6 +1575,9 @@ static void drm_dp_send_link_address(str + txmsg->reply.u.link_addr.ports[i].num_sdp_streams, + txmsg->reply.u.link_addr.ports[i].num_sdp_stream_sinks); + } ++ ++ drm_dp_check_mstb_guid(mstb, txmsg->reply.u.link_addr.guid); ++ + for (i = 0; i < txmsg->reply.u.link_addr.nports; i++) { + drm_dp_add_port(mstb, mgr->dev, &txmsg->reply.u.link_addr.ports[i]); + } +@@ -1554,6 +1625,37 @@ static int drm_dp_send_enum_path_resourc + return 0; + } + ++static struct drm_dp_mst_port *drm_dp_get_last_connected_port_to_mstb(struct drm_dp_mst_branch *mstb) ++{ ++ if (!mstb->port_parent) ++ return NULL; ++ ++ if (mstb->port_parent->mstb != mstb) ++ return mstb->port_parent; ++ ++ return drm_dp_get_last_connected_port_to_mstb(mstb->port_parent->parent); ++} ++ ++static struct drm_dp_mst_branch *drm_dp_get_last_connected_port_and_mstb(struct drm_dp_mst_topology_mgr *mgr, ++ struct drm_dp_mst_branch *mstb, ++ int *port_num) ++{ ++ struct drm_dp_mst_branch *rmstb = NULL; ++ struct drm_dp_mst_port *found_port; ++ mutex_lock(&mgr->lock); ++ if (mgr->mst_primary) { ++ found_port = drm_dp_get_last_connected_port_to_mstb(mstb); ++ ++ if (found_port) { ++ rmstb = found_port->parent; ++ kref_get(&rmstb->kref); ++ *port_num = found_port->port_num; ++ } ++ } ++ mutex_unlock(&mgr->lock); ++ return rmstb; ++} ++ + static int drm_dp_payload_send_msg(struct drm_dp_mst_topology_mgr *mgr, + struct drm_dp_mst_port *port, + int id, +@@ -1561,11 +1663,16 @@ static int drm_dp_payload_send_msg(struc + { + struct drm_dp_sideband_msg_tx *txmsg; + struct drm_dp_mst_branch *mstb; +- int len, ret; ++ int len, ret, port_num; + ++ port_num = port->port_num; + mstb = drm_dp_get_validated_mstb_ref(mgr, port->parent); +- if (!mstb) +- return -EINVAL; ++ if (!mstb) { ++ mstb = drm_dp_get_last_connected_port_and_mstb(mgr, port->parent, &port_num); ++ ++ if (!mstb) ++ return -EINVAL; ++ } + + txmsg = kzalloc(sizeof(*txmsg), GFP_KERNEL); + if (!txmsg) { +@@ -1574,7 +1681,7 @@ static int drm_dp_payload_send_msg(struc + } + + txmsg->dst = mstb; +- len = build_allocate_payload(txmsg, port->port_num, ++ len = build_allocate_payload(txmsg, port_num, + id, + pbn); + +@@ -1844,11 +1951,12 @@ static int drm_dp_send_up_ack_reply(stru + drm_dp_encode_up_ack_reply(txmsg, req_type); + + mutex_lock(&mgr->qlock); +- list_add_tail(&txmsg->next, &mgr->tx_msg_upq); +- if (!mgr->tx_up_in_progress) { +- process_single_up_tx_qlock(mgr); +- } ++ ++ process_single_up_tx_qlock(mgr, txmsg); ++ + mutex_unlock(&mgr->qlock); ++ ++ kfree(txmsg); + return 0; + } + +@@ -1927,31 +2035,17 @@ int drm_dp_mst_topology_mgr_set_mst(stru + mgr->mst_primary = mstb; + kref_get(&mgr->mst_primary->kref); + +- { +- struct drm_dp_payload reset_pay; +- reset_pay.start_slot = 0; +- reset_pay.num_slots = 0x3f; +- drm_dp_dpcd_write_payload(mgr, 0, &reset_pay); +- } +- + ret = drm_dp_dpcd_writeb(mgr->aux, DP_MSTM_CTRL, +- DP_MST_EN | DP_UP_REQ_EN | DP_UPSTREAM_IS_SRC); ++ DP_MST_EN | DP_UP_REQ_EN | DP_UPSTREAM_IS_SRC); + if (ret < 0) { + goto out_unlock; + } + +- +- /* sort out guid */ +- ret = drm_dp_dpcd_read(mgr->aux, DP_GUID, mgr->guid, 16); +- if (ret != 16) { +- DRM_DEBUG_KMS("failed to read DP GUID %d\n", ret); +- goto out_unlock; +- } +- +- mgr->guid_valid = drm_dp_validate_guid(mgr, mgr->guid); +- if (!mgr->guid_valid) { +- ret = drm_dp_dpcd_write(mgr->aux, DP_GUID, mgr->guid, 16); +- mgr->guid_valid = true; ++ { ++ struct drm_dp_payload reset_pay; ++ reset_pay.start_slot = 0; ++ reset_pay.num_slots = 0x3f; ++ drm_dp_dpcd_write_payload(mgr, 0, &reset_pay); + } + + queue_work(system_long_wq, &mgr->work); +@@ -2145,28 +2239,51 @@ static int drm_dp_mst_handle_up_req(stru + + if (mgr->up_req_recv.have_eomt) { + struct drm_dp_sideband_msg_req_body msg; +- struct drm_dp_mst_branch *mstb; ++ struct drm_dp_mst_branch *mstb = NULL; + bool seqno; +- mstb = drm_dp_get_mst_branch_device(mgr, +- mgr->up_req_recv.initial_hdr.lct, +- mgr->up_req_recv.initial_hdr.rad); +- if (!mstb) { +- DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct); +- memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx)); +- return 0; ++ ++ if (!mgr->up_req_recv.initial_hdr.broadcast) { ++ mstb = drm_dp_get_mst_branch_device(mgr, ++ mgr->up_req_recv.initial_hdr.lct, ++ mgr->up_req_recv.initial_hdr.rad); ++ if (!mstb) { ++ DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct); ++ memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx)); ++ return 0; ++ } + } + + seqno = mgr->up_req_recv.initial_hdr.seqno; + drm_dp_sideband_parse_req(&mgr->up_req_recv, &msg); + + if (msg.req_type == DP_CONNECTION_STATUS_NOTIFY) { +- drm_dp_send_up_ack_reply(mgr, mstb, msg.req_type, seqno, false); ++ drm_dp_send_up_ack_reply(mgr, mgr->mst_primary, msg.req_type, seqno, false); ++ ++ if (!mstb) ++ mstb = drm_dp_get_mst_branch_device_by_guid(mgr, msg.u.conn_stat.guid); ++ ++ if (!mstb) { ++ DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct); ++ memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx)); ++ return 0; ++ } ++ + drm_dp_update_port(mstb, &msg.u.conn_stat); ++ + DRM_DEBUG_KMS("Got CSN: pn: %d ldps:%d ddps: %d mcs: %d ip: %d pdt: %d\n", msg.u.conn_stat.port_number, msg.u.conn_stat.legacy_device_plug_status, msg.u.conn_stat.displayport_device_plug_status, msg.u.conn_stat.message_capability_status, msg.u.conn_stat.input_port, msg.u.conn_stat.peer_device_type); + (*mgr->cbs->hotplug)(mgr); + + } else if (msg.req_type == DP_RESOURCE_STATUS_NOTIFY) { +- drm_dp_send_up_ack_reply(mgr, mstb, msg.req_type, seqno, false); ++ drm_dp_send_up_ack_reply(mgr, mgr->mst_primary, msg.req_type, seqno, false); ++ if (!mstb) ++ mstb = drm_dp_get_mst_branch_device_by_guid(mgr, msg.u.resource_stat.guid); ++ ++ if (!mstb) { ++ DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct); ++ memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx)); ++ return 0; ++ } ++ + DRM_DEBUG_KMS("Got RSN: pn: %d avail_pbn %d\n", msg.u.resource_stat.port_number, msg.u.resource_stat.available_pbn); + } + +@@ -2346,6 +2463,7 @@ bool drm_dp_mst_allocate_vcpi(struct drm + DRM_DEBUG_KMS("payload: vcpi %d already allocated for pbn %d - requested pbn %d\n", port->vcpi.vcpi, port->vcpi.pbn, pbn); + if (pbn == port->vcpi.pbn) { + *slots = port->vcpi.num_slots; ++ drm_dp_put_port(port); + return true; + } + } +@@ -2505,32 +2623,31 @@ EXPORT_SYMBOL(drm_dp_check_act_status); + */ + int drm_dp_calc_pbn_mode(int clock, int bpp) + { +- fixed20_12 pix_bw; +- fixed20_12 fbpp; +- fixed20_12 result; +- fixed20_12 margin, tmp; +- u32 res; ++ u64 kbps; ++ s64 peak_kbps; ++ u32 numerator; ++ u32 denominator; + +- pix_bw.full = dfixed_const(clock); +- fbpp.full = dfixed_const(bpp); +- tmp.full = dfixed_const(8); +- fbpp.full = dfixed_div(fbpp, tmp); ++ kbps = clock * bpp; + +- result.full = dfixed_mul(pix_bw, fbpp); +- margin.full = dfixed_const(54); +- tmp.full = dfixed_const(64); +- margin.full = dfixed_div(margin, tmp); +- result.full = dfixed_div(result, margin); ++ /* ++ * margin 5300ppm + 300ppm ~ 0.6% as per spec, factor is 1.006 ++ * The unit of 54/64Mbytes/sec is an arbitrary unit chosen based on ++ * common multiplier to render an integer PBN for all link rate/lane ++ * counts combinations ++ * calculate ++ * peak_kbps *= (1006/1000) ++ * peak_kbps *= (64/54) ++ * peak_kbps *= 8 convert to bytes ++ */ + +- margin.full = dfixed_const(1006); +- tmp.full = dfixed_const(1000); +- margin.full = dfixed_div(margin, tmp); +- result.full = dfixed_mul(result, margin); ++ numerator = 64 * 1006; ++ denominator = 54 * 8 * 1000 * 1000; + +- result.full = dfixed_div(result, tmp); +- result.full = dfixed_ceil(result); +- res = dfixed_trunc(result); +- return res; ++ kbps *= numerator; ++ peak_kbps = drm_fixp_from_fraction(kbps, denominator); ++ ++ return drm_fixp2int_ceil(peak_kbps); + } + EXPORT_SYMBOL(drm_dp_calc_pbn_mode); + +@@ -2538,11 +2655,23 @@ static int test_calc_pbn_mode(void) + { + int ret; + ret = drm_dp_calc_pbn_mode(154000, 30); +- if (ret != 689) ++ if (ret != 689) { ++ DRM_ERROR("PBN calculation test failed - clock %d, bpp %d, expected PBN %d, actual PBN %d.\n", ++ 154000, 30, 689, ret); + return -EINVAL; ++ } + ret = drm_dp_calc_pbn_mode(234000, 30); +- if (ret != 1047) ++ if (ret != 1047) { ++ DRM_ERROR("PBN calculation test failed - clock %d, bpp %d, expected PBN %d, actual PBN %d.\n", ++ 234000, 30, 1047, ret); + return -EINVAL; ++ } ++ ret = drm_dp_calc_pbn_mode(297000, 24); ++ if (ret != 1063) { ++ DRM_ERROR("PBN calculation test failed - clock %d, bpp %d, expected PBN %d, actual PBN %d.\n", ++ 297000, 24, 1063, ret); ++ return -EINVAL; ++ } + return 0; + } + +@@ -2683,6 +2812,13 @@ static void drm_dp_tx_work(struct work_s + mutex_unlock(&mgr->qlock); + } + ++static void drm_dp_free_mst_port(struct kref *kref) ++{ ++ struct drm_dp_mst_port *port = container_of(kref, struct drm_dp_mst_port, kref); ++ kref_put(&port->parent->kref, drm_dp_free_mst_branch_device); ++ kfree(port); ++} ++ + static void drm_dp_destroy_connector_work(struct work_struct *work) + { + struct drm_dp_mst_topology_mgr *mgr = container_of(work, struct drm_dp_mst_topology_mgr, destroy_connector_work); +@@ -2703,13 +2839,22 @@ static void drm_dp_destroy_connector_wor + list_del(&port->next); + mutex_unlock(&mgr->destroy_connector_lock); + ++ kref_init(&port->kref); ++ INIT_LIST_HEAD(&port->next); ++ + mgr->cbs->destroy_connector(mgr, port->connector); + + drm_dp_port_teardown_pdt(port, port->pdt); + +- if (!port->input && port->vcpi.vcpi > 0) +- drm_dp_mst_put_payload_id(mgr, port->vcpi.vcpi); +- kfree(port); ++ if (!port->input && port->vcpi.vcpi > 0) { ++ if (mgr->mst_state) { ++ drm_dp_mst_reset_vcpi_slots(mgr, port); ++ drm_dp_update_payload_part1(mgr); ++ drm_dp_mst_put_payload_id(mgr, port->vcpi.vcpi); ++ } ++ } ++ ++ kref_put(&port->kref, drm_dp_free_mst_port); + send_hotplug = true; + } + if (send_hotplug) +@@ -2736,7 +2881,6 @@ int drm_dp_mst_topology_mgr_init(struct + mutex_init(&mgr->qlock); + mutex_init(&mgr->payload_lock); + mutex_init(&mgr->destroy_connector_lock); +- INIT_LIST_HEAD(&mgr->tx_msg_upq); + INIT_LIST_HEAD(&mgr->tx_msg_downq); + INIT_LIST_HEAD(&mgr->destroy_connector_list); + INIT_WORK(&mgr->work, drm_dp_mst_link_probe_work); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_irq.c linux-libre-4.4.7-gnu/drivers/gpu/drm/drm_irq.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_irq.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/drm_irq.c 2016-04-12 12:09:26.000000000 -0400 +@@ -221,6 +221,64 @@ static void drm_update_vblank_count(stru + diff = (flags & DRM_CALLED_FROM_VBLIRQ) != 0; + } + ++ /* ++ * Within a drm_vblank_pre_modeset - drm_vblank_post_modeset ++ * interval? If so then vblank irqs keep running and it will likely ++ * happen that the hardware vblank counter is not trustworthy as it ++ * might reset at some point in that interval and vblank timestamps ++ * are not trustworthy either in that interval. Iow. this can result ++ * in a bogus diff >> 1 which must be avoided as it would cause ++ * random large forward jumps of the software vblank counter. ++ */ ++ if (diff > 1 && (vblank->inmodeset & 0x2)) { ++ DRM_DEBUG_VBL("clamping vblank bump to 1 on crtc %u: diffr=%u" ++ " due to pre-modeset.\n", pipe, diff); ++ diff = 1; ++ } ++ ++ /* ++ * FIMXE: Need to replace this hack with proper seqlocks. ++ * ++ * Restrict the bump of the software vblank counter to a safe maximum ++ * value of +1 whenever there is the possibility that concurrent readers ++ * of vblank timestamps could be active at the moment, as the current ++ * implementation of the timestamp caching and updating is not safe ++ * against concurrent readers for calls to store_vblank() with a bump ++ * of anything but +1. A bump != 1 would very likely return corrupted ++ * timestamps to userspace, because the same slot in the cache could ++ * be concurrently written by store_vblank() and read by one of those ++ * readers without the read-retry logic detecting the collision. ++ * ++ * Concurrent readers can exist when we are called from the ++ * drm_vblank_off() or drm_vblank_on() functions and other non-vblank- ++ * irq callers. However, all those calls to us are happening with the ++ * vbl_lock locked to prevent drm_vblank_get(), so the vblank refcount ++ * can't increase while we are executing. Therefore a zero refcount at ++ * this point is safe for arbitrary counter bumps if we are called ++ * outside vblank irq, a non-zero count is not 100% safe. Unfortunately ++ * we must also accept a refcount of 1, as whenever we are called from ++ * drm_vblank_get() -> drm_vblank_enable() the refcount will be 1 and ++ * we must let that one pass through in order to not lose vblank counts ++ * during vblank irq off - which would completely defeat the whole ++ * point of this routine. ++ * ++ * Whenever we are called from vblank irq, we have to assume concurrent ++ * readers exist or can show up any time during our execution, even if ++ * the refcount is currently zero, as vblank irqs are usually only ++ * enabled due to the presence of readers, and because when we are called ++ * from vblank irq we can't hold the vbl_lock to protect us from sudden ++ * bumps in vblank refcount. Therefore also restrict bumps to +1 when ++ * called from vblank irq. ++ */ ++ if ((diff > 1) && (atomic_read(&vblank->refcount) > 1 || ++ (flags & DRM_CALLED_FROM_VBLIRQ))) { ++ DRM_DEBUG_VBL("clamping vblank bump to 1 on crtc %u: diffr=%u " ++ "refcount %u, vblirq %u\n", pipe, diff, ++ atomic_read(&vblank->refcount), ++ (flags & DRM_CALLED_FROM_VBLIRQ) != 0); ++ diff = 1; ++ } ++ + DRM_DEBUG_VBL("updating vblank count on crtc %u:" + " current=%u, diff=%u, hw=%u hw_last=%u\n", + pipe, vblank->count, diff, cur_vblank, vblank->last); +@@ -1313,7 +1371,13 @@ void drm_vblank_off(struct drm_device *d + spin_lock_irqsave(&dev->event_lock, irqflags); + + spin_lock(&dev->vbl_lock); +- vblank_disable_and_save(dev, pipe); ++ DRM_DEBUG_VBL("crtc %d, vblank enabled %d, inmodeset %d\n", ++ pipe, vblank->enabled, vblank->inmodeset); ++ ++ /* Avoid redundant vblank disables without previous drm_vblank_on(). */ ++ if (drm_core_check_feature(dev, DRIVER_ATOMIC) || !vblank->inmodeset) ++ vblank_disable_and_save(dev, pipe); ++ + wake_up(&vblank->queue); + + /* +@@ -1415,6 +1479,9 @@ void drm_vblank_on(struct drm_device *de + return; + + spin_lock_irqsave(&dev->vbl_lock, irqflags); ++ DRM_DEBUG_VBL("crtc %d, vblank enabled %d, inmodeset %d\n", ++ pipe, vblank->enabled, vblank->inmodeset); ++ + /* Drop our private "prevent drm_vblank_get" refcount */ + if (vblank->inmodeset) { + atomic_dec(&vblank->refcount); +@@ -1427,8 +1494,7 @@ void drm_vblank_on(struct drm_device *de + * re-enable interrupts if there are users left, or the + * user wishes vblank interrupts to be enabled all the time. + */ +- if (atomic_read(&vblank->refcount) != 0 || +- (!dev->vblank_disable_immediate && drm_vblank_offdelay == 0)) ++ if (atomic_read(&vblank->refcount) != 0 || drm_vblank_offdelay == 0) + WARN_ON(drm_vblank_enable(dev, pipe)); + spin_unlock_irqrestore(&dev->vbl_lock, irqflags); + } +@@ -1523,6 +1589,7 @@ void drm_vblank_post_modeset(struct drm_ + if (vblank->inmodeset) { + spin_lock_irqsave(&dev->vbl_lock, irqflags); + dev->vblank_disable_allowed = true; ++ drm_reset_vblank_timestamp(dev, pipe); + spin_unlock_irqrestore(&dev->vbl_lock, irqflags); + + if (vblank->inmodeset & 0x2) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/gma500/gem.c linux-libre-4.4.7-gnu/drivers/gpu/drm/gma500/gem.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/gma500/gem.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/gma500/gem.c 2016-04-12 12:09:26.000000000 -0400 +@@ -130,7 +130,7 @@ int psb_gem_create(struct drm_file *file + return ret; + } + /* We have the initial and handle reference but need only one now */ +- drm_gem_object_unreference(&r->gem); ++ drm_gem_object_unreference_unlocked(&r->gem); + *handlep = handle; + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_dma.c linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/i915_dma.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_dma.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/i915_dma.c 2016-04-12 12:09:26.000000000 -0400 +@@ -402,6 +402,8 @@ static int i915_load_modeset_init(struct + if (ret) + goto cleanup_gem_stolen; + ++ intel_setup_gmbus(dev); ++ + /* Important: The output setup functions called by modeset_init need + * working irqs for e.g. gmbus and dp aux transfers. */ + intel_modeset_init(dev); +@@ -451,6 +453,7 @@ cleanup_gem: + cleanup_irq: + intel_guc_ucode_fini(dev); + drm_irq_uninstall(dev); ++ intel_teardown_gmbus(dev); + cleanup_gem_stolen: + i915_gem_cleanup_stolen(dev); + cleanup_vga_switcheroo: +@@ -1028,7 +1031,6 @@ int i915_driver_load(struct drm_device * + + /* Try to make sure MCHBAR is enabled before poking at it */ + intel_setup_mchbar(dev); +- intel_setup_gmbus(dev); + intel_opregion_setup(dev); + + i915_gem_load(dev); +@@ -1099,7 +1101,6 @@ out_gem_unload: + if (dev->pdev->msi_enabled) + pci_disable_msi(dev->pdev); + +- intel_teardown_gmbus(dev); + intel_teardown_mchbar(dev); + pm_qos_remove_request(&dev_priv->pm_qos); + destroy_workqueue(dev_priv->gpu_error.hangcheck_wq); +@@ -1198,7 +1199,6 @@ int i915_driver_unload(struct drm_device + + intel_csr_ucode_fini(dev); + +- intel_teardown_gmbus(dev); + intel_teardown_mchbar(dev); + + destroy_workqueue(dev_priv->hotplug.dp_wq); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_drv.c linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/i915_drv.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_drv.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/i915_drv.c 2016-04-12 12:09:26.000000000 -0400 +@@ -531,7 +531,10 @@ void intel_detect_pch(struct drm_device + dev_priv->pch_type = PCH_SPT; + DRM_DEBUG_KMS("Found SunrisePoint LP PCH\n"); + WARN_ON(!IS_SKYLAKE(dev)); +- } else if (id == INTEL_PCH_P2X_DEVICE_ID_TYPE) { ++ } else if ((id == INTEL_PCH_P2X_DEVICE_ID_TYPE) || ++ ((id == INTEL_PCH_QEMU_DEVICE_ID_TYPE) && ++ pch->subsystem_vendor == 0x1af4 && ++ pch->subsystem_device == 0x1100)) { + dev_priv->pch_type = intel_virt_detect_pch(dev); + } else + continue; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_drv.h linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/i915_drv.h +--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_drv.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/i915_drv.h 2016-04-12 12:09:26.000000000 -0400 +@@ -2614,6 +2614,7 @@ struct drm_i915_cmd_table { + #define INTEL_PCH_SPT_DEVICE_ID_TYPE 0xA100 + #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE 0x9D00 + #define INTEL_PCH_P2X_DEVICE_ID_TYPE 0x7100 ++#define INTEL_PCH_QEMU_DEVICE_ID_TYPE 0x2900 /* qemu q35 has 2918 */ + + #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type) + #define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_gem_context.c linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/i915_gem_context.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_gem_context.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/i915_gem_context.c 2016-04-12 12:09:26.000000000 -0400 +@@ -340,6 +340,10 @@ void i915_gem_context_reset(struct drm_d + i915_gem_context_unreference(lctx); + ring->last_context = NULL; + } ++ ++ /* Force the GPU state to be reinitialised on enabling */ ++ if (ring->default_context) ++ ring->default_context->legacy_hw_ctx.initialized = false; + } + } + +@@ -708,7 +712,7 @@ static int do_switch(struct drm_i915_gem + if (ret) + goto unpin_out; + +- if (!to->legacy_hw_ctx.initialized) { ++ if (!to->legacy_hw_ctx.initialized || i915_gem_context_is_default(to)) { + hw_flags |= MI_RESTORE_INHIBIT; + /* NB: If we inhibit the restore, the context is not allowed to + * die because future work may end up depending on valid address +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_irq.c linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/i915_irq.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_irq.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/i915_irq.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2354,9 +2354,13 @@ static irqreturn_t gen8_irq_handler(int + spt_irq_handler(dev, pch_iir); + else + cpt_irq_handler(dev, pch_iir); +- } else +- DRM_ERROR("The master control interrupt lied (SDE)!\n"); +- ++ } else { ++ /* ++ * Like on previous PCH there seems to be something ++ * fishy going on with forwarding PCH interrupts. ++ */ ++ DRM_DEBUG_DRIVER("The master control interrupt lied (SDE)!\n"); ++ } + } + + I915_WRITE_FW(GEN8_MASTER_IRQ, GEN8_MASTER_IRQ_CONTROL); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_ddi.c linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/intel_ddi.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_ddi.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/intel_ddi.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1582,7 +1582,8 @@ skl_ddi_pll_select(struct intel_crtc *in + DPLL_CFGCR2_KDIV(wrpll_params.kdiv) | + DPLL_CFGCR2_PDIV(wrpll_params.pdiv) | + wrpll_params.central_freq; +- } else if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT) { ++ } else if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT || ++ intel_encoder->type == INTEL_OUTPUT_DP_MST) { + switch (crtc_state->port_clock / 2) { + case 81000: + ctrl1 |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_810, 0); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_display.c linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/intel_display.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_display.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/intel_display.c 2016-04-12 12:09:26.000000000 -0400 +@@ -11930,11 +11930,21 @@ connected_sink_compute_bpp(struct intel_ + pipe_config->pipe_bpp = connector->base.display_info.bpc*3; + } + +- /* Clamp bpp to 8 on screens without EDID 1.4 */ +- if (connector->base.display_info.bpc == 0 && bpp > 24) { +- DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n", +- bpp); +- pipe_config->pipe_bpp = 24; ++ /* Clamp bpp to default limit on screens without EDID 1.4 */ ++ if (connector->base.display_info.bpc == 0) { ++ int type = connector->base.connector_type; ++ int clamp_bpp = 24; ++ ++ /* Fall back to 18 bpp when DP sink capability is unknown. */ ++ if (type == DRM_MODE_CONNECTOR_DisplayPort || ++ type == DRM_MODE_CONNECTOR_eDP) ++ clamp_bpp = 18; ++ ++ if (bpp > clamp_bpp) { ++ DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of %d\n", ++ bpp, clamp_bpp); ++ pipe_config->pipe_bpp = clamp_bpp; ++ } + } + } + +@@ -13537,11 +13547,12 @@ intel_check_primary_plane(struct drm_pla + int max_scale = DRM_PLANE_HELPER_NO_SCALING; + bool can_position = false; + +- /* use scaler when colorkey is not required */ +- if (INTEL_INFO(plane->dev)->gen >= 9 && +- state->ckey.flags == I915_SET_COLORKEY_NONE) { +- min_scale = 1; +- max_scale = skl_max_scale(to_intel_crtc(crtc), crtc_state); ++ if (INTEL_INFO(plane->dev)->gen >= 9) { ++ /* use scaler when colorkey is not required */ ++ if (state->ckey.flags == I915_SET_COLORKEY_NONE) { ++ min_scale = 1; ++ max_scale = skl_max_scale(to_intel_crtc(crtc), crtc_state); ++ } + can_position = true; + } + +@@ -15565,6 +15576,8 @@ void intel_modeset_cleanup(struct drm_de + mutex_lock(&dev->struct_mutex); + intel_cleanup_gt_powersave(dev); + mutex_unlock(&dev->struct_mutex); ++ ++ intel_teardown_gmbus(dev); + } + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c 2016-04-12 12:09:26.000000000 -0400 +@@ -207,7 +207,12 @@ static const u8 *mipi_exec_gpio(struct i + gpio = *data++; + + /* pull up/down */ +- action = *data++; ++ action = *data++ & 1; ++ ++ if (gpio >= ARRAY_SIZE(gtable)) { ++ DRM_DEBUG_KMS("unknown gpio %u\n", gpio); ++ goto out; ++ } + + function = gtable[gpio].function_reg; + pad = gtable[gpio].pad_reg; +@@ -226,6 +231,7 @@ static const u8 *mipi_exec_gpio(struct i + vlv_gpio_nc_write(dev_priv, pad, val); + mutex_unlock(&dev_priv->sb_lock); + ++out: + return data; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_hotplug.c linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/intel_hotplug.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_hotplug.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/intel_hotplug.c 2016-04-12 12:09:26.000000000 -0400 +@@ -468,9 +468,14 @@ void intel_hpd_init(struct drm_i915_priv + list_for_each_entry(connector, &mode_config->connector_list, head) { + struct intel_connector *intel_connector = to_intel_connector(connector); + connector->polled = intel_connector->polled; +- if (connector->encoder && !connector->polled && I915_HAS_HOTPLUG(dev) && intel_connector->encoder->hpd_pin > HPD_NONE) +- connector->polled = DRM_CONNECTOR_POLL_HPD; ++ ++ /* MST has a dynamic intel_connector->encoder and it's reprobing ++ * is all handled by the MST helpers. */ + if (intel_connector->mst_port) ++ continue; ++ ++ if (!connector->polled && I915_HAS_HOTPLUG(dev) && ++ intel_connector->encoder->hpd_pin > HPD_NONE) + connector->polled = DRM_CONNECTOR_POLL_HPD; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_i2c.c linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/intel_i2c.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_i2c.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/intel_i2c.c 2016-04-12 12:09:26.000000000 -0400 +@@ -675,7 +675,7 @@ int intel_setup_gmbus(struct drm_device + return 0; + + err: +- while (--pin) { ++ while (pin--) { + if (!intel_gmbus_is_valid_pin(dev_priv, pin)) + continue; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_lrc.c linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/intel_lrc.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_lrc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/intel_lrc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1706,6 +1706,7 @@ static int gen8_emit_flush_render(struct + if (flush_domains) { + flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; + flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; ++ flags |= PIPE_CONTROL_DC_FLUSH_ENABLE; + flags |= PIPE_CONTROL_FLUSH_ENABLE; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c 2016-04-12 12:09:26.000000000 -0400 +@@ -347,6 +347,7 @@ gen7_render_ring_flush(struct drm_i915_g + if (flush_domains) { + flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; + flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; ++ flags |= PIPE_CONTROL_DC_FLUSH_ENABLE; + flags |= PIPE_CONTROL_FLUSH_ENABLE; + } + if (invalidate_domains) { +@@ -419,6 +420,7 @@ gen8_render_ring_flush(struct drm_i915_g + if (flush_domains) { + flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; + flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; ++ flags |= PIPE_CONTROL_DC_FLUSH_ENABLE; + flags |= PIPE_CONTROL_FLUSH_ENABLE; + } + if (invalidate_domains) { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_connector.c linux-libre-4.4.7-gnu/drivers/gpu/drm/nouveau/nouveau_connector.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_connector.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/nouveau/nouveau_connector.c 2016-04-12 12:09:26.000000000 -0400 +@@ -969,10 +969,13 @@ nouveau_connector_hotplug(struct nvif_no + + NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name); + ++ mutex_lock(&drm->dev->mode_config.mutex); + if (plugged) + drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON); + else + drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); ++ mutex_unlock(&drm->dev->mode_config.mutex); ++ + drm_helper_hpd_irq_event(connector->dev); + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_display.c linux-libre-4.4.7-gnu/drivers/gpu/drm/nouveau/nouveau_display.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_display.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/nouveau/nouveau_display.c 2016-04-12 12:09:26.000000000 -0400 +@@ -634,10 +634,6 @@ nouveau_display_resume(struct drm_device + nv_crtc->lut.depth = 0; + } + +- /* Make sure that drm and hw vblank irqs get resumed if needed. */ +- for (head = 0; head < dev->mode_config.num_crtc; head++) +- drm_vblank_on(dev, head); +- + /* This should ensure we don't hit a locking problem when someone + * wakes us up via a connector. We should never go into suspend + * while the display is on anyways. +@@ -647,6 +643,10 @@ nouveau_display_resume(struct drm_device + + drm_helper_resume_force_mode(dev); + ++ /* Make sure that drm and hw vblank irqs get resumed if needed. */ ++ for (head = 0; head < dev->mode_config.num_crtc; head++) ++ drm_vblank_on(dev, head); ++ + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_platform.c linux-libre-4.4.7-gnu/drivers/gpu/drm/nouveau/nouveau_platform.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_platform.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/nouveau/nouveau_platform.c 2016-04-12 12:09:26.000000000 -0400 +@@ -24,7 +24,7 @@ + static int nouveau_platform_probe(struct platform_device *pdev) + { + const struct nvkm_device_tegra_func *func; +- struct nvkm_device *device; ++ struct nvkm_device *device = NULL; + struct drm_device *drm; + int ret; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c linux-libre-4.4.7-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c 2016-04-12 12:09:26.000000000 -0400 +@@ -252,32 +252,40 @@ nvkm_device_tegra_new(const struct nvkm_ + + if (!(tdev = kzalloc(sizeof(*tdev), GFP_KERNEL))) + return -ENOMEM; +- *pdevice = &tdev->device; ++ + tdev->func = func; + tdev->pdev = pdev; + tdev->irq = -1; + + tdev->vdd = devm_regulator_get(&pdev->dev, "vdd"); +- if (IS_ERR(tdev->vdd)) +- return PTR_ERR(tdev->vdd); ++ if (IS_ERR(tdev->vdd)) { ++ ret = PTR_ERR(tdev->vdd); ++ goto free; ++ } + + tdev->rst = devm_reset_control_get(&pdev->dev, "gpu"); +- if (IS_ERR(tdev->rst)) +- return PTR_ERR(tdev->rst); ++ if (IS_ERR(tdev->rst)) { ++ ret = PTR_ERR(tdev->rst); ++ goto free; ++ } + + tdev->clk = devm_clk_get(&pdev->dev, "gpu"); +- if (IS_ERR(tdev->clk)) +- return PTR_ERR(tdev->clk); ++ if (IS_ERR(tdev->clk)) { ++ ret = PTR_ERR(tdev->clk); ++ goto free; ++ } + + tdev->clk_pwr = devm_clk_get(&pdev->dev, "pwr"); +- if (IS_ERR(tdev->clk_pwr)) +- return PTR_ERR(tdev->clk_pwr); ++ if (IS_ERR(tdev->clk_pwr)) { ++ ret = PTR_ERR(tdev->clk_pwr); ++ goto free; ++ } + + nvkm_device_tegra_probe_iommu(tdev); + + ret = nvkm_device_tegra_power_up(tdev); + if (ret) +- return ret; ++ goto remove; + + tdev->gpu_speedo = tegra_sku_info.gpu_speedo_value; + ret = nvkm_device_ctor(&nvkm_device_tegra_func, NULL, &pdev->dev, +@@ -285,9 +293,19 @@ nvkm_device_tegra_new(const struct nvkm_ + cfg, dbg, detect, mmio, subdev_mask, + &tdev->device); + if (ret) +- return ret; ++ goto powerdown; ++ ++ *pdevice = &tdev->device; + + return 0; ++ ++powerdown: ++ nvkm_device_tegra_power_down(tdev); ++remove: ++ nvkm_device_tegra_remove_iommu(tdev); ++free: ++ kfree(tdev); ++ return ret; + } + #else + int +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.c linux-libre-4.4.7-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.c 2016-04-12 12:09:26.000000000 -0400 +@@ -328,6 +328,7 @@ nvkm_dp_train(struct work_struct *w) + .outp = outp, + }, *dp = &_dp; + u32 datarate = 0; ++ u8 pwr; + int ret; + + if (!outp->base.info.location && disp->func->sor.magic) +@@ -355,6 +356,15 @@ nvkm_dp_train(struct work_struct *w) + /* disable link interrupt handling during link training */ + nvkm_notify_put(&outp->irq); + ++ /* ensure sink is not in a low-power state */ ++ if (!nvkm_rdaux(outp->aux, DPCD_SC00, &pwr, 1)) { ++ if ((pwr & DPCD_SC00_SET_POWER) != DPCD_SC00_SET_POWER_D0) { ++ pwr &= ~DPCD_SC00_SET_POWER; ++ pwr |= DPCD_SC00_SET_POWER_D0; ++ nvkm_wraux(outp->aux, DPCD_SC00, &pwr, 1); ++ } ++ } ++ + /* enable down-spreading and execute pre-train script from vbios */ + dp_link_train_init(dp, outp->dpcd[3] & 0x01); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.h linux-libre-4.4.7-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.h +--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.h 2016-04-12 12:09:26.000000000 -0400 +@@ -71,5 +71,11 @@ + #define DPCD_LS0C_LANE1_POST_CURSOR2 0x0c + #define DPCD_LS0C_LANE0_POST_CURSOR2 0x03 + ++/* DPCD Sink Control */ ++#define DPCD_SC00 0x00600 ++#define DPCD_SC00_SET_POWER 0x03 ++#define DPCD_SC00_SET_POWER_D0 0x01 ++#define DPCD_SC00_SET_POWER_D3 0x03 ++ + void nvkm_dp_train(struct work_struct *); + #endif +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/qxl/qxl_ioctl.c linux-libre-4.4.7-gnu/drivers/gpu/drm/qxl/qxl_ioctl.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/qxl/qxl_ioctl.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/qxl/qxl_ioctl.c 2016-04-12 12:09:26.000000000 -0400 +@@ -168,7 +168,8 @@ static int qxl_process_single_command(st + cmd->command_size)) + return -EFAULT; + +- reloc_info = kmalloc(sizeof(struct qxl_reloc_info) * cmd->relocs_num, GFP_KERNEL); ++ reloc_info = kmalloc_array(cmd->relocs_num, ++ sizeof(struct qxl_reloc_info), GFP_KERNEL); + if (!reloc_info) + return -ENOMEM; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/atombios_encoders.c linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/atombios_encoders.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/atombios_encoders.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/atombios_encoders.c 2016-04-12 12:09:26.000000000 -0400 +@@ -892,8 +892,6 @@ atombios_dig_encoder_setup2(struct drm_e + else + args.v1.ucLaneNum = 4; + +- if (ENCODER_MODE_IS_DP(args.v1.ucEncoderMode) && (dp_clock == 270000)) +- args.v1.ucConfig |= ATOM_ENCODER_CONFIG_DPLINKRATE_2_70GHZ; + switch (radeon_encoder->encoder_id) { + case ENCODER_OBJECT_ID_INTERNAL_UNIPHY: + args.v1.ucConfig = ATOM_ENCODER_CONFIG_V2_TRANSMITTER1; +@@ -910,6 +908,10 @@ atombios_dig_encoder_setup2(struct drm_e + args.v1.ucConfig |= ATOM_ENCODER_CONFIG_LINKB; + else + args.v1.ucConfig |= ATOM_ENCODER_CONFIG_LINKA; ++ ++ if (ENCODER_MODE_IS_DP(args.v1.ucEncoderMode) && (dp_clock == 270000)) ++ args.v1.ucConfig |= ATOM_ENCODER_CONFIG_DPLINKRATE_2_70GHZ; ++ + break; + case 2: + case 3: +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/dce6_afmt.c linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/dce6_afmt.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/dce6_afmt.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/dce6_afmt.c 2016-04-12 12:09:26.000000000 -0400 +@@ -301,6 +301,14 @@ void dce6_dp_audio_set_dto(struct radeon + * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator + */ + if (ASIC_IS_DCE8(rdev)) { ++ unsigned int div = (RREG32(DENTIST_DISPCLK_CNTL) & ++ DENTIST_DPREFCLK_WDIVIDER_MASK) >> ++ DENTIST_DPREFCLK_WDIVIDER_SHIFT; ++ div = radeon_audio_decode_dfs_div(div); ++ ++ if (div) ++ clock = clock * 100 / div; ++ + WREG32(DCE8_DCCG_AUDIO_DTO1_PHASE, 24000); + WREG32(DCE8_DCCG_AUDIO_DTO1_MODULE, clock); + } else { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/evergreend.h linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/evergreend.h +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/evergreend.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/evergreend.h 2016-04-12 12:09:26.000000000 -0400 +@@ -511,6 +511,11 @@ + #define DCCG_AUDIO_DTO1_CNTL 0x05cc + # define DCCG_AUDIO_DTO1_USE_512FBR_DTO (1 << 3) + ++#define DCE41_DENTIST_DISPCLK_CNTL 0x049c ++# define DENTIST_DPREFCLK_WDIVIDER(x) (((x) & 0x7f) << 24) ++# define DENTIST_DPREFCLK_WDIVIDER_MASK (0x7f << 24) ++# define DENTIST_DPREFCLK_WDIVIDER_SHIFT 24 ++ + /* DCE 4.0 AFMT */ + #define HDMI_CONTROL 0x7030 + # define HDMI_KEEPOUT_MODE (1 << 0) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/evergreen_hdmi.c linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/evergreen_hdmi.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/evergreen_hdmi.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/evergreen_hdmi.c 2016-04-12 12:09:26.000000000 -0400 +@@ -289,6 +289,16 @@ void dce4_dp_audio_set_dto(struct radeon + * number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE + * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator + */ ++ if (ASIC_IS_DCE41(rdev)) { ++ unsigned int div = (RREG32(DCE41_DENTIST_DISPCLK_CNTL) & ++ DENTIST_DPREFCLK_WDIVIDER_MASK) >> ++ DENTIST_DPREFCLK_WDIVIDER_SHIFT; ++ div = radeon_audio_decode_dfs_div(div); ++ ++ if (div) ++ clock = 100 * clock / div; ++ } ++ + WREG32(DCCG_AUDIO_DTO1_PHASE, 24000); + WREG32(DCCG_AUDIO_DTO1_MODULE, clock); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_atombios.c linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_atombios.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_atombios.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_atombios.c 2016-04-12 12:09:26.000000000 -0400 +@@ -437,7 +437,9 @@ static bool radeon_atom_apply_quirks(str + } + + /* Fujitsu D3003-S2 board lists DVI-I as DVI-D and VGA */ +- if (((dev->pdev->device == 0x9802) || (dev->pdev->device == 0x9806)) && ++ if (((dev->pdev->device == 0x9802) || ++ (dev->pdev->device == 0x9805) || ++ (dev->pdev->device == 0x9806)) && + (dev->pdev->subsystem_vendor == 0x1734) && + (dev->pdev->subsystem_device == 0x11bd)) { + if (*connector_type == DRM_MODE_CONNECTOR_VGA) { +@@ -448,14 +450,6 @@ static bool radeon_atom_apply_quirks(str + } + } + +- /* Fujitsu D3003-S2 board lists DVI-I as DVI-I and VGA */ +- if ((dev->pdev->device == 0x9805) && +- (dev->pdev->subsystem_vendor == 0x1734) && +- (dev->pdev->subsystem_device == 0x11bd)) { +- if (*connector_type == DRM_MODE_CONNECTOR_VGA) +- return false; +- } +- + return true; + } + +@@ -1112,6 +1106,31 @@ union firmware_info { + ATOM_FIRMWARE_INFO_V2_2 info_22; + }; + ++union igp_info { ++ struct _ATOM_INTEGRATED_SYSTEM_INFO info; ++ struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2; ++ struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6; ++ struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_7 info_7; ++ struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_8 info_8; ++}; ++ ++static void radeon_atombios_get_dentist_vco_freq(struct radeon_device *rdev) ++{ ++ struct radeon_mode_info *mode_info = &rdev->mode_info; ++ int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo); ++ union igp_info *igp_info; ++ u8 frev, crev; ++ u16 data_offset; ++ ++ if (atom_parse_data_header(mode_info->atom_context, index, NULL, ++ &frev, &crev, &data_offset)) { ++ igp_info = (union igp_info *)(mode_info->atom_context->bios + ++ data_offset); ++ rdev->clock.vco_freq = ++ le32_to_cpu(igp_info->info_6.ulDentistVCOFreq); ++ } ++} ++ + bool radeon_atom_get_clock_info(struct drm_device *dev) + { + struct radeon_device *rdev = dev->dev_private; +@@ -1263,20 +1282,25 @@ bool radeon_atom_get_clock_info(struct d + rdev->mode_info.firmware_flags = + le16_to_cpu(firmware_info->info.usFirmwareCapability.susAccess); + ++ if (ASIC_IS_DCE8(rdev)) ++ rdev->clock.vco_freq = ++ le32_to_cpu(firmware_info->info_22.ulGPUPLL_OutputFreq); ++ else if (ASIC_IS_DCE5(rdev)) ++ rdev->clock.vco_freq = rdev->clock.current_dispclk; ++ else if (ASIC_IS_DCE41(rdev)) ++ radeon_atombios_get_dentist_vco_freq(rdev); ++ else ++ rdev->clock.vco_freq = rdev->clock.current_dispclk; ++ ++ if (rdev->clock.vco_freq == 0) ++ rdev->clock.vco_freq = 360000; /* 3.6 GHz */ ++ + return true; + } + + return false; + } + +-union igp_info { +- struct _ATOM_INTEGRATED_SYSTEM_INFO info; +- struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2; +- struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6; +- struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_7 info_7; +- struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_8 info_8; +-}; +- + bool radeon_atombios_sideport_present(struct radeon_device *rdev) + { + struct radeon_mode_info *mode_info = &rdev->mode_info; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_atpx_handler.c linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_atpx_handler.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_atpx_handler.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_atpx_handler.c 2016-04-12 12:09:26.000000000 -0400 +@@ -62,6 +62,10 @@ bool radeon_has_atpx(void) { + return radeon_atpx_priv.atpx_detected; + } + ++bool radeon_has_atpx_dgpu_power_cntl(void) { ++ return radeon_atpx_priv.atpx.functions.power_cntl; ++} ++ + /** + * radeon_atpx_call - call an ATPX method + * +@@ -141,10 +145,6 @@ static void radeon_atpx_parse_functions( + */ + static int radeon_atpx_validate(struct radeon_atpx *atpx) + { +- /* make sure required functions are enabled */ +- /* dGPU power control is required */ +- atpx->functions.power_cntl = true; +- + if (atpx->functions.px_params) { + union acpi_object *info; + struct atpx_px_params output; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_audio.c linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_audio.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_audio.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_audio.c 2016-04-12 12:09:26.000000000 -0400 +@@ -739,9 +739,6 @@ static void radeon_audio_dp_mode_set(str + struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); + struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; + struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); +- struct radeon_connector *radeon_connector = to_radeon_connector(connector); +- struct radeon_connector_atom_dig *dig_connector = +- radeon_connector->con_priv; + + if (!dig || !dig->afmt) + return; +@@ -753,10 +750,7 @@ static void radeon_audio_dp_mode_set(str + radeon_audio_write_speaker_allocation(encoder); + radeon_audio_write_sad_regs(encoder); + radeon_audio_write_latency_fields(encoder, mode); +- if (rdev->clock.dp_extclk || ASIC_IS_DCE5(rdev)) +- radeon_audio_set_dto(encoder, rdev->clock.default_dispclk * 10); +- else +- radeon_audio_set_dto(encoder, dig_connector->dp_clock); ++ radeon_audio_set_dto(encoder, rdev->clock.vco_freq * 10); + radeon_audio_set_audio_packet(encoder); + radeon_audio_select_pin(encoder); + +@@ -781,3 +775,15 @@ void radeon_audio_dpms(struct drm_encode + if (radeon_encoder->audio && radeon_encoder->audio->dpms) + radeon_encoder->audio->dpms(encoder, mode == DRM_MODE_DPMS_ON); + } ++ ++unsigned int radeon_audio_decode_dfs_div(unsigned int div) ++{ ++ if (div >= 8 && div < 64) ++ return (div - 8) * 25 + 200; ++ else if (div >= 64 && div < 96) ++ return (div - 64) * 50 + 1600; ++ else if (div >= 96 && div < 128) ++ return (div - 96) * 100 + 3200; ++ else ++ return 0; ++} +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_audio.h linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_audio.h +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_audio.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_audio.h 2016-04-12 12:09:26.000000000 -0400 +@@ -79,5 +79,6 @@ void radeon_audio_fini(struct radeon_dev + void radeon_audio_mode_set(struct drm_encoder *encoder, + struct drm_display_mode *mode); + void radeon_audio_dpms(struct drm_encoder *encoder, int mode); ++unsigned int radeon_audio_decode_dfs_div(unsigned int div); + + #endif +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_device.c linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_device.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_device.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_device.c 2016-04-12 12:09:26.000000000 -0400 +@@ -103,6 +103,12 @@ static const char radeon_family_name[][1 + "LAST", + }; + ++#if defined(CONFIG_VGA_SWITCHEROO) ++bool radeon_has_atpx_dgpu_power_cntl(void); ++#else ++static inline bool radeon_has_atpx_dgpu_power_cntl(void) { return false; } ++#endif ++ + #define RADEON_PX_QUIRK_DISABLE_PX (1 << 0) + #define RADEON_PX_QUIRK_LONG_WAKEUP (1 << 1) + +@@ -1433,7 +1439,7 @@ int radeon_device_init(struct radeon_dev + * ignore it */ + vga_client_register(rdev->pdev, rdev, NULL, radeon_vga_set_decode); + +- if (rdev->flags & RADEON_IS_PX) ++ if ((rdev->flags & RADEON_IS_PX) && radeon_has_atpx_dgpu_power_cntl()) + runtime = true; + vga_switcheroo_register_client(rdev->pdev, &radeon_switcheroo_ops, runtime); + if (runtime) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_display.c linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_display.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_display.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_display.c 2016-04-12 12:09:26.000000000 -0400 +@@ -403,7 +403,8 @@ static void radeon_flip_work_func(struct + struct drm_crtc *crtc = &radeon_crtc->base; + unsigned long flags; + int r; +- int vpos, hpos, stat, min_udelay; ++ int vpos, hpos, stat, min_udelay = 0; ++ unsigned repcnt = 4; + struct drm_vblank_crtc *vblank = &crtc->dev->vblank[work->crtc_id]; + + down_read(&rdev->exclusive_lock); +@@ -454,7 +455,7 @@ static void radeon_flip_work_func(struct + * In practice this won't execute very often unless on very fast + * machines because the time window for this to happen is very small. + */ +- for (;;) { ++ while (radeon_crtc->enabled && --repcnt) { + /* GET_DISTANCE_TO_VBLANKSTART returns distance to real vblank + * start in hpos, and to the "fudged earlier" vblank start in + * vpos. +@@ -470,12 +471,24 @@ static void radeon_flip_work_func(struct + break; + + /* Sleep at least until estimated real start of hw vblank */ +- spin_unlock_irqrestore(&crtc->dev->event_lock, flags); + min_udelay = (-hpos + 1) * max(vblank->linedur_ns / 1000, 5); ++ if (min_udelay > vblank->framedur_ns / 2000) { ++ /* Don't wait ridiculously long - something is wrong */ ++ repcnt = 0; ++ break; ++ } ++ spin_unlock_irqrestore(&crtc->dev->event_lock, flags); + usleep_range(min_udelay, 2 * min_udelay); + spin_lock_irqsave(&crtc->dev->event_lock, flags); + }; + ++ if (!repcnt) ++ DRM_DEBUG_DRIVER("Delay problem on crtc %d: min_udelay %d, " ++ "framedur %d, linedur %d, stat %d, vpos %d, " ++ "hpos %d\n", work->crtc_id, min_udelay, ++ vblank->framedur_ns / 1000, ++ vblank->linedur_ns / 1000, stat, vpos, hpos); ++ + /* do the flip (mmio) */ + radeon_page_flip(rdev, radeon_crtc->crtc_id, work->base); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon.h linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon.h +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon.h 2016-04-12 12:09:26.000000000 -0400 +@@ -268,6 +268,7 @@ struct radeon_clock { + uint32_t current_dispclk; + uint32_t dp_extclk; + uint32_t max_pixel_clock; ++ uint32_t vco_freq; + }; + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_object.c linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_object.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_object.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_object.c 2016-04-12 12:09:26.000000000 -0400 +@@ -33,6 +33,7 @@ + #include <linux/slab.h> + #include <drm/drmP.h> + #include <drm/radeon_drm.h> ++#include <drm/drm_cache.h> + #include "radeon.h" + #include "radeon_trace.h" + +@@ -245,6 +246,12 @@ int radeon_bo_create(struct radeon_devic + DRM_INFO_ONCE("Please enable CONFIG_MTRR and CONFIG_X86_PAT for " + "better performance thanks to write-combining\n"); + bo->flags &= ~(RADEON_GEM_GTT_WC | RADEON_GEM_GTT_UC); ++#else ++ /* For architectures that don't support WC memory, ++ * mask out the WC flag from the BO ++ */ ++ if (!drm_arch_can_wc_memory()) ++ bo->flags &= ~RADEON_GEM_GTT_WC; + #endif + + radeon_ttm_placement_from_domain(bo, domain); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_pm.c linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_pm.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_pm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_pm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1078,10 +1078,6 @@ force: + /* update displays */ + radeon_dpm_display_configuration_changed(rdev); + +- rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs; +- rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count; +- rdev->pm.dpm.single_display = single_display; +- + /* wait for the rings to drain */ + for (i = 0; i < RADEON_NUM_RINGS; i++) { + struct radeon_ring *ring = &rdev->ring[i]; +@@ -1097,6 +1093,10 @@ force: + + radeon_dpm_post_set_power_state(rdev); + ++ rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs; ++ rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count; ++ rdev->pm.dpm.single_display = single_display; ++ + if (rdev->asic->dpm.force_performance_level) { + if (rdev->pm.dpm.thermal_active) { + enum radeon_dpm_forced_level level = rdev->pm.dpm.forced_level; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_sa.c linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_sa.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_sa.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_sa.c 2016-04-12 12:09:26.000000000 -0400 +@@ -349,8 +349,13 @@ int radeon_sa_bo_new(struct radeon_devic + /* see if we can skip over some allocations */ + } while (radeon_sa_bo_next_hole(sa_manager, fences, tries)); + ++ for (i = 0; i < RADEON_NUM_RINGS; ++i) ++ radeon_fence_ref(fences[i]); ++ + spin_unlock(&sa_manager->wq.lock); + r = radeon_fence_wait_any(rdev, fences, false); ++ for (i = 0; i < RADEON_NUM_RINGS; ++i) ++ radeon_fence_unref(&fences[i]); + spin_lock(&sa_manager->wq.lock); + /* if we have nothing to wait for block */ + if (r == -ENOENT) { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_ttm.c linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_ttm.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_ttm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_ttm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -758,7 +758,7 @@ static int radeon_ttm_tt_populate(struct + 0, PAGE_SIZE, + PCI_DMA_BIDIRECTIONAL); + if (pci_dma_mapping_error(rdev->pdev, gtt->ttm.dma_address[i])) { +- while (--i) { ++ while (i--) { + pci_unmap_page(rdev->pdev, gtt->ttm.dma_address[i], + PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); + gtt->ttm.dma_address[i] = 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_vm.c linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_vm.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_vm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/radeon_vm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -455,15 +455,15 @@ int radeon_vm_bo_set_addr(struct radeon_ + + if (soffset) { + /* make sure object fit at this offset */ +- eoffset = soffset + size; ++ eoffset = soffset + size - 1; + if (soffset >= eoffset) { + r = -EINVAL; + goto error_unreserve; + } + + last_pfn = eoffset / RADEON_GPU_PAGE_SIZE; +- if (last_pfn > rdev->vm_manager.max_pfn) { +- dev_err(rdev->dev, "va above limit (0x%08X > 0x%08X)\n", ++ if (last_pfn >= rdev->vm_manager.max_pfn) { ++ dev_err(rdev->dev, "va above limit (0x%08X >= 0x%08X)\n", + last_pfn, rdev->vm_manager.max_pfn); + r = -EINVAL; + goto error_unreserve; +@@ -478,7 +478,7 @@ int radeon_vm_bo_set_addr(struct radeon_ + eoffset /= RADEON_GPU_PAGE_SIZE; + if (soffset || eoffset) { + struct interval_tree_node *it; +- it = interval_tree_iter_first(&vm->va, soffset, eoffset - 1); ++ it = interval_tree_iter_first(&vm->va, soffset, eoffset); + if (it && it != &bo_va->it) { + struct radeon_bo_va *tmp; + tmp = container_of(it, struct radeon_bo_va, it); +@@ -518,7 +518,7 @@ int radeon_vm_bo_set_addr(struct radeon_ + if (soffset || eoffset) { + spin_lock(&vm->status_lock); + bo_va->it.start = soffset; +- bo_va->it.last = eoffset - 1; ++ bo_va->it.last = eoffset; + list_add(&bo_va->vm_status, &vm->cleared); + spin_unlock(&vm->status_lock); + interval_tree_insert(&bo_va->it, &vm->va); +@@ -888,7 +888,7 @@ static void radeon_vm_fence_pts(struct r + unsigned i; + + start >>= radeon_vm_block_size; +- end >>= radeon_vm_block_size; ++ end = (end - 1) >> radeon_vm_block_size; + + for (i = start; i <= end; ++i) + radeon_bo_fence(vm->page_tables[i].bo, fence, true); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/sid.h linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/sid.h +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/sid.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/sid.h 2016-04-12 12:09:26.000000000 -0400 +@@ -915,6 +915,11 @@ + #define DCCG_AUDIO_DTO1_PHASE 0x05c0 + #define DCCG_AUDIO_DTO1_MODULE 0x05c4 + ++#define DENTIST_DISPCLK_CNTL 0x0490 ++# define DENTIST_DPREFCLK_WDIVIDER(x) (((x) & 0x7f) << 24) ++# define DENTIST_DPREFCLK_WDIVIDER_MASK (0x7f << 24) ++# define DENTIST_DPREFCLK_WDIVIDER_SHIFT 24 ++ + #define AFMT_AUDIO_SRC_CONTROL 0x713c + #define AFMT_AUDIO_SRC_SELECT(x) (((x) & 7) << 0) + /* AFMT_AUDIO_SRC_SELECT +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/vce_v1_0.c linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/vce_v1_0.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/vce_v1_0.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/radeon/vce_v1_0.c 2016-04-12 12:09:26.000000000 -0400 +@@ -178,12 +178,12 @@ int vce_v1_0_load_fw(struct radeon_devic + return -EINVAL; + } + +- for (i = 0; i < sign->num; ++i) { +- if (sign->val[i].chip_id == chip_id) ++ for (i = 0; i < le32_to_cpu(sign->num); ++i) { ++ if (le32_to_cpu(sign->val[i].chip_id) == chip_id) + break; + } + +- if (i == sign->num) ++ if (i == le32_to_cpu(sign->num)) + return -EINVAL; + + data += (256 - 64) / 4; +@@ -191,18 +191,18 @@ int vce_v1_0_load_fw(struct radeon_devic + data[1] = sign->val[i].nonce[1]; + data[2] = sign->val[i].nonce[2]; + data[3] = sign->val[i].nonce[3]; +- data[4] = sign->len + 64; ++ data[4] = cpu_to_le32(le32_to_cpu(sign->len) + 64); + + memset(&data[5], 0, 44); + memcpy(&data[16], &sign[1], rdev->vce_fw->size - sizeof(*sign)); + +- data += data[4] / 4; ++ data += le32_to_cpu(data[4]) / 4; + data[0] = sign->val[i].sigval[0]; + data[1] = sign->val[i].sigval[1]; + data[2] = sign->val[i].sigval[2]; + data[3] = sign->val[i].sigval[3]; + +- rdev->vce.keyselect = sign->val[i].keyselect; ++ rdev->vce.keyselect = le32_to_cpu(sign->val[i].keyselect); + + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c linux-libre-4.4.7-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c 2016-04-12 12:09:26.000000000 -0400 +@@ -247,7 +247,7 @@ static void __vmw_cmdbuf_header_free(str + { + struct vmw_cmdbuf_man *man = header->man; + +- BUG_ON(!spin_is_locked(&man->lock)); ++ lockdep_assert_held_once(&man->lock); + + if (header->inline_space) { + vmw_cmdbuf_header_inline_free(header); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c linux-libre-4.4.7-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c 2016-04-12 12:09:26.000000000 -0400 +@@ -25,6 +25,7 @@ + * + **************************************************************************/ + #include <linux/module.h> ++#include <linux/console.h> + + #include <drm/drmP.h> + #include "vmwgfx_drv.h" +@@ -1538,6 +1539,12 @@ static int vmw_probe(struct pci_dev *pde + static int __init vmwgfx_init(void) + { + int ret; ++ ++#ifdef CONFIG_VGA_CONSOLE ++ if (vgacon_text_force()) ++ return -EINVAL; ++#endif ++ + ret = drm_pci_init(&driver, &vmw_pci_driver); + if (ret) + DRM_ERROR("Failed initializing DRM.\n"); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c linux-libre-4.4.7-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c 2016-04-12 12:09:26.000000000 -0400 +@@ -763,21 +763,25 @@ static int vmw_create_dmabuf_proxy(struc + uint32_t format; + struct drm_vmw_size content_base_size; + struct vmw_resource *res; ++ unsigned int bytes_pp; + int ret; + + switch (mode_cmd->depth) { + case 32: + case 24: + format = SVGA3D_X8R8G8B8; ++ bytes_pp = 4; + break; + + case 16: + case 15: + format = SVGA3D_R5G6B5; ++ bytes_pp = 2; + break; + + case 8: + format = SVGA3D_P8; ++ bytes_pp = 1; + break; + + default: +@@ -785,7 +789,7 @@ static int vmw_create_dmabuf_proxy(struc + return -EINVAL; + } + +- content_base_size.width = mode_cmd->width; ++ content_base_size.width = mode_cmd->pitch / bytes_pp; + content_base_size.height = mode_cmd->height; + content_base_size.depth = 1; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/ipu-v3/ipu-common.c linux-libre-4.4.7-gnu/drivers/gpu/ipu-v3/ipu-common.c +--- linux-libre-4.4-gnu/drivers/gpu/ipu-v3/ipu-common.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/gpu/ipu-v3/ipu-common.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1050,6 +1050,17 @@ static int ipu_add_client_devices(struct + for (i = 0; i < ARRAY_SIZE(client_reg); i++) { + const struct ipu_platform_reg *reg = &client_reg[i]; + struct platform_device *pdev; ++ struct device_node *of_node; ++ ++ /* Associate subdevice with the corresponding port node */ ++ of_node = of_graph_get_port_by_id(dev->of_node, i); ++ if (!of_node) { ++ dev_info(dev, ++ "no port@%d node in %s, not using %s%d\n", ++ i, dev->of_node->full_name, ++ (i / 2) ? "DI" : "CSI", i % 2); ++ continue; ++ } + + pdev = platform_device_alloc(reg->name, id++); + if (!pdev) { +@@ -1057,17 +1068,9 @@ static int ipu_add_client_devices(struct + goto err_register; + } + ++ pdev->dev.of_node = of_node; + pdev->dev.parent = dev; + +- /* Associate subdevice with the corresponding port node */ +- pdev->dev.of_node = of_graph_get_port_by_id(dev->of_node, i); +- if (!pdev->dev.of_node) { +- dev_err(dev, "missing port@%d node in %s\n", i, +- dev->of_node->full_name); +- ret = -ENODEV; +- goto err_register; +- } +- + ret = platform_device_add_data(pdev, ®->pdata, + sizeof(reg->pdata)); + if (!ret) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/hid-core.c linux-libre-4.4.7-gnu/drivers/hid/hid-core.c +--- linux-libre-4.4-gnu/drivers/hid/hid-core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/hid/hid-core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1897,6 +1897,7 @@ static const struct hid_device_id hid_ha + { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) }, + { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) }, + { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) }, ++ { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DUAL_ACTION) }, + { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) }, + { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) }, + { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) }, +@@ -2615,9 +2616,10 @@ int hid_add_device(struct hid_device *hd + /* + * Scan generic devices for group information + */ +- if (hid_ignore_special_drivers || +- (!hdev->group && +- !hid_match_id(hdev, hid_have_special_driver))) { ++ if (hid_ignore_special_drivers) { ++ hdev->group = HID_GROUP_GENERIC; ++ } else if (!hdev->group && ++ !hid_match_id(hdev, hid_have_special_driver)) { + ret = hid_scan_report(hdev); + if (ret) + hid_warn(hdev, "bad device descriptor (%d)\n", ret); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/hid-multitouch.c linux-libre-4.4.7-gnu/drivers/hid/hid-multitouch.c +--- linux-libre-4.4-gnu/drivers/hid/hid-multitouch.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/hid/hid-multitouch.c 2016-04-12 12:09:26.000000000 -0400 +@@ -357,8 +357,19 @@ static void mt_feature_mapping(struct hi + break; + } + +- td->inputmode = field->report->id; +- td->inputmode_index = usage->usage_index; ++ if (td->inputmode < 0) { ++ td->inputmode = field->report->id; ++ td->inputmode_index = usage->usage_index; ++ } else { ++ /* ++ * Some elan panels wrongly declare 2 input mode ++ * features, and silently ignore when we set the ++ * value in the second field. Skip the second feature ++ * and hope for the best. ++ */ ++ dev_info(&hdev->dev, ++ "Ignoring the extra HID_DG_INPUTMODE\n"); ++ } + + break; + case HID_DG_CONTACTMAX: +@@ -385,6 +396,11 @@ static void mt_feature_mapping(struct hi + td->is_buttonpad = true; + + break; ++ case 0xff0000c5: ++ /* Retrieve the Win8 blob once to enable some devices */ ++ if (usage->usage_index == 0) ++ mt_get_feature(hdev, field->report); ++ break; + } + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/i2c-hid/i2c-hid.c linux-libre-4.4.7-gnu/drivers/hid/i2c-hid/i2c-hid.c +--- linux-libre-4.4-gnu/drivers/hid/i2c-hid/i2c-hid.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/hid/i2c-hid/i2c-hid.c 2016-04-12 12:09:26.000000000 -0400 +@@ -282,17 +282,21 @@ static int i2c_hid_set_or_send_report(st + u16 dataRegister = le16_to_cpu(ihid->hdesc.wDataRegister); + u16 outputRegister = le16_to_cpu(ihid->hdesc.wOutputRegister); + u16 maxOutputLength = le16_to_cpu(ihid->hdesc.wMaxOutputLength); ++ u16 size; ++ int args_len; ++ int index = 0; + +- /* hid_hw_* already checked that data_len < HID_MAX_BUFFER_SIZE */ +- u16 size = 2 /* size */ + ++ i2c_hid_dbg(ihid, "%s\n", __func__); ++ ++ if (data_len > ihid->bufsize) ++ return -EINVAL; ++ ++ size = 2 /* size */ + + (reportID ? 1 : 0) /* reportID */ + + data_len /* buf */; +- int args_len = (reportID >= 0x0F ? 1 : 0) /* optional third byte */ + ++ args_len = (reportID >= 0x0F ? 1 : 0) /* optional third byte */ + + 2 /* dataRegister */ + + size /* args */; +- int index = 0; +- +- i2c_hid_dbg(ihid, "%s\n", __func__); + + if (!use_data && maxOutputLength == 0) + return -ENOSYS; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/usbhid/hid-core.c linux-libre-4.4.7-gnu/drivers/hid/usbhid/hid-core.c +--- linux-libre-4.4-gnu/drivers/hid/usbhid/hid-core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/hid/usbhid/hid-core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -477,8 +477,6 @@ static void hid_ctrl(struct urb *urb) + struct usbhid_device *usbhid = hid->driver_data; + int unplug = 0, status = urb->status; + +- spin_lock(&usbhid->lock); +- + switch (status) { + case 0: /* success */ + if (usbhid->ctrl[usbhid->ctrltail].dir == USB_DIR_IN) +@@ -498,6 +496,8 @@ static void hid_ctrl(struct urb *urb) + hid_warn(urb->dev, "ctrl urb status %d received\n", status); + } + ++ spin_lock(&usbhid->lock); ++ + if (unplug) { + usbhid->ctrltail = usbhid->ctrlhead; + } else { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hv/channel.c linux-libre-4.4.7-gnu/drivers/hv/channel.c +--- linux-libre-4.4-gnu/drivers/hv/channel.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/hv/channel.c 2016-04-12 12:09:26.000000000 -0400 +@@ -630,10 +630,19 @@ int vmbus_sendpacket_ctl(struct vmbus_ch + * on the ring. We will not signal if more data is + * to be placed. + * ++ * Based on the channel signal state, we will decide ++ * which signaling policy will be applied. ++ * + * If we cannot write to the ring-buffer; signal the host + * even if we may not have written anything. This is a rare + * enough condition that it should not matter. + */ ++ ++ if (channel->signal_policy) ++ signal = true; ++ else ++ kick_q = true; ++ + if (((ret == 0) && kick_q && signal) || (ret)) + vmbus_setevent(channel); + +@@ -733,10 +742,19 @@ int vmbus_sendpacket_pagebuffer_ctl(stru + * on the ring. We will not signal if more data is + * to be placed. + * ++ * Based on the channel signal state, we will decide ++ * which signaling policy will be applied. ++ * + * If we cannot write to the ring-buffer; signal the host + * even if we may not have written anything. This is a rare + * enough condition that it should not matter. + */ ++ ++ if (channel->signal_policy) ++ signal = true; ++ else ++ kick_q = true; ++ + if (((ret == 0) && kick_q && signal) || (ret)) + vmbus_setevent(channel); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/ads1015.c linux-libre-4.4.7-gnu/drivers/hwmon/ads1015.c +--- linux-libre-4.4-gnu/drivers/hwmon/ads1015.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/hwmon/ads1015.c 2016-04-12 12:09:26.000000000 -0400 +@@ -126,7 +126,7 @@ static int ads1015_reg_to_mv(struct i2c_ + struct ads1015_data *data = i2c_get_clientdata(client); + unsigned int pga = data->channel_data[channel].pga; + int fullscale = fullscale_table[pga]; +- const unsigned mask = data->id == ads1115 ? 0x7fff : 0x7ff0; ++ const int mask = data->id == ads1115 ? 0x7fff : 0x7ff0; + + return DIV_ROUND_CLOSEST(reg * fullscale, mask); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/dell-smm-hwmon.c linux-libre-4.4.7-gnu/drivers/hwmon/dell-smm-hwmon.c +--- linux-libre-4.4-gnu/drivers/hwmon/dell-smm-hwmon.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/hwmon/dell-smm-hwmon.c 2016-04-12 12:09:26.000000000 -0400 +@@ -932,6 +932,17 @@ MODULE_DEVICE_TABLE(dmi, i8k_dmi_table); + static struct dmi_system_id i8k_blacklist_dmi_table[] __initdata = { + { + /* ++ * CPU fan speed going up and down on Dell Studio XPS 8000 ++ * for unknown reasons. ++ */ ++ .ident = "Dell Studio XPS 8000", ++ .matches = { ++ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dell Inc."), ++ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Studio XPS 8000"), ++ }, ++ }, ++ { ++ /* + * CPU fan speed going up and down on Dell Studio XPS 8100 + * for unknown reasons. + */ +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/gpio-fan.c linux-libre-4.4.7-gnu/drivers/hwmon/gpio-fan.c +--- linux-libre-4.4-gnu/drivers/hwmon/gpio-fan.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/hwmon/gpio-fan.c 2016-04-12 12:09:26.000000000 -0400 +@@ -406,16 +406,11 @@ static int gpio_fan_get_cur_state(struct + unsigned long *state) + { + struct gpio_fan_data *fan_data = cdev->devdata; +- int r; + + if (!fan_data) + return -EINVAL; + +- r = get_fan_speed_index(fan_data); +- if (r < 0) +- return r; +- +- *state = r; ++ *state = fan_data->speed_index; + return 0; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwspinlock/hwspinlock_core.c linux-libre-4.4.7-gnu/drivers/hwspinlock/hwspinlock_core.c +--- linux-libre-4.4-gnu/drivers/hwspinlock/hwspinlock_core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/hwspinlock/hwspinlock_core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -313,6 +313,10 @@ int of_hwspin_lock_get_id(struct device_ + hwlock = radix_tree_deref_slot(slot); + if (unlikely(!hwlock)) + continue; ++ if (radix_tree_is_indirect_ptr(hwlock)) { ++ slot = radix_tree_iter_retry(&iter); ++ continue; ++ } + + if (hwlock->bank->dev->of_node == args.np) { + ret = 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwtracing/coresight/coresight.c linux-libre-4.4.7-gnu/drivers/hwtracing/coresight/coresight.c +--- linux-libre-4.4-gnu/drivers/hwtracing/coresight/coresight.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/hwtracing/coresight/coresight.c 2016-04-12 12:09:26.000000000 -0400 +@@ -548,7 +548,7 @@ static int coresight_name_match(struct d + to_match = data; + i_csdev = to_coresight_device(dev); + +- if (!strcmp(to_match, dev_name(&i_csdev->dev))) ++ if (to_match && !strcmp(to_match, dev_name(&i_csdev->dev))) + return 1; + + return 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-brcmstb.c linux-libre-4.4.7-gnu/drivers/i2c/busses/i2c-brcmstb.c +--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-brcmstb.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/i2c/busses/i2c-brcmstb.c 2016-04-12 12:09:26.000000000 -0400 +@@ -562,8 +562,7 @@ static int brcmstb_i2c_probe(struct plat + if (!dev) + return -ENOMEM; + +- dev->bsc_regmap = devm_kzalloc(&pdev->dev, sizeof(struct bsc_regs *), +- GFP_KERNEL); ++ dev->bsc_regmap = devm_kzalloc(&pdev->dev, sizeof(*dev->bsc_regmap), GFP_KERNEL); + if (!dev->bsc_regmap) + return -ENOMEM; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-i801.c linux-libre-4.4.7-gnu/drivers/i2c/busses/i2c-i801.c +--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-i801.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/i2c/busses/i2c-i801.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1271,6 +1271,8 @@ static int i801_probe(struct pci_dev *de + switch (dev->device) { + case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_SMBUS: + case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_SMBUS: ++ case PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS: ++ case PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS: + case PCI_DEVICE_ID_INTEL_DNV_SMBUS: + priv->features |= FEATURE_I2C_BLOCK_READ; + priv->features |= FEATURE_IRQ; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/idle/intel_idle.c linux-libre-4.4.7-gnu/drivers/idle/intel_idle.c +--- linux-libre-4.4-gnu/drivers/idle/intel_idle.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/idle/intel_idle.c 2016-04-12 12:09:26.000000000 -0400 +@@ -65,7 +65,7 @@ + #include <asm/mwait.h> + #include <asm/msr.h> + +-#define INTEL_IDLE_VERSION "0.4" ++#define INTEL_IDLE_VERSION "0.4.1" + #define PREFIX "intel_idle: " + + static struct cpuidle_driver intel_idle_driver = { +@@ -994,36 +994,92 @@ static void intel_idle_cpuidle_devices_u + } + + /* +- * intel_idle_state_table_update() +- * +- * Update the default state_table for this CPU-id ++ * ivt_idle_state_table_update(void) + * +- * Currently used to access tuned IVT multi-socket targets ++ * Tune IVT multi-socket targets + * Assumption: num_sockets == (max_package_num + 1) + */ +-void intel_idle_state_table_update(void) ++static void ivt_idle_state_table_update(void) + { + /* IVT uses a different table for 1-2, 3-4, and > 4 sockets */ +- if (boot_cpu_data.x86_model == 0x3e) { /* IVT */ +- int cpu, package_num, num_sockets = 1; ++ int cpu, package_num, num_sockets = 1; + +- for_each_online_cpu(cpu) { +- package_num = topology_physical_package_id(cpu); +- if (package_num + 1 > num_sockets) { +- num_sockets = package_num + 1; ++ for_each_online_cpu(cpu) { ++ package_num = topology_physical_package_id(cpu); ++ if (package_num + 1 > num_sockets) { ++ num_sockets = package_num + 1; + +- if (num_sockets > 4) { +- cpuidle_state_table = ivt_cstates_8s; +- return; +- } ++ if (num_sockets > 4) { ++ cpuidle_state_table = ivt_cstates_8s; ++ return; + } + } ++ } + +- if (num_sockets > 2) +- cpuidle_state_table = ivt_cstates_4s; +- /* else, 1 and 2 socket systems use default ivt_cstates */ ++ if (num_sockets > 2) ++ cpuidle_state_table = ivt_cstates_4s; ++ ++ /* else, 1 and 2 socket systems use default ivt_cstates */ ++} ++/* ++ * sklh_idle_state_table_update(void) ++ * ++ * On SKL-H (model 0x5e) disable C8 and C9 if: ++ * C10 is enabled and SGX disabled ++ */ ++static void sklh_idle_state_table_update(void) ++{ ++ unsigned long long msr; ++ unsigned int eax, ebx, ecx, edx; ++ ++ ++ /* if PC10 disabled via cmdline intel_idle.max_cstate=7 or shallower */ ++ if (max_cstate <= 7) ++ return; ++ ++ /* if PC10 not present in CPUID.MWAIT.EDX */ ++ if ((mwait_substates & (0xF << 28)) == 0) ++ return; ++ ++ rdmsrl(MSR_NHM_SNB_PKG_CST_CFG_CTL, msr); ++ ++ /* PC10 is not enabled in PKG C-state limit */ ++ if ((msr & 0xF) != 8) ++ return; ++ ++ ecx = 0; ++ cpuid(7, &eax, &ebx, &ecx, &edx); ++ ++ /* if SGX is present */ ++ if (ebx & (1 << 2)) { ++ ++ rdmsrl(MSR_IA32_FEATURE_CONTROL, msr); ++ ++ /* if SGX is enabled */ ++ if (msr & (1 << 18)) ++ return; ++ } ++ ++ skl_cstates[5].disabled = 1; /* C8-SKL */ ++ skl_cstates[6].disabled = 1; /* C9-SKL */ ++} ++/* ++ * intel_idle_state_table_update() ++ * ++ * Update the default state_table for this CPU-id ++ */ ++ ++static void intel_idle_state_table_update(void) ++{ ++ switch (boot_cpu_data.x86_model) { ++ ++ case 0x3e: /* IVT */ ++ ivt_idle_state_table_update(); ++ break; ++ case 0x5e: /* SKL-H */ ++ sklh_idle_state_table_update(); ++ break; + } +- return; + } + + /* +@@ -1063,6 +1119,14 @@ static int __init intel_idle_cpuidle_dri + if (num_substates == 0) + continue; + ++ /* if state marked as disabled, skip it */ ++ if (cpuidle_state_table[cstate].disabled != 0) { ++ pr_debug(PREFIX "state %s is disabled", ++ cpuidle_state_table[cstate].name); ++ continue; ++ } ++ ++ + if (((mwait_cstate + 1) > 2) && + !boot_cpu_has(X86_FEATURE_NONSTOP_TSC)) + mark_tsc_unstable("TSC halts in idle" +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/accel/Kconfig linux-libre-4.4.7-gnu/drivers/iio/accel/Kconfig +--- linux-libre-4.4-gnu/drivers/iio/accel/Kconfig 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iio/accel/Kconfig 2016-04-12 12:09:26.000000000 -0400 +@@ -173,6 +173,7 @@ config STK8312 + config STK8BA50 + tristate "Sensortek STK8BA50 3-Axis Accelerometer Driver" + depends on I2C ++ depends on IIO_TRIGGER + help + Say yes here to get support for the Sensortek STK8BA50 3-axis + accelerometer. +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/Kconfig linux-libre-4.4.7-gnu/drivers/iio/adc/Kconfig +--- linux-libre-4.4-gnu/drivers/iio/adc/Kconfig 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iio/adc/Kconfig 2016-04-12 12:09:26.000000000 -0400 +@@ -372,6 +372,7 @@ config TWL6030_GPADC + config VF610_ADC + tristate "Freescale vf610 ADC driver" + depends on OF ++ depends on HAS_IOMEM + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER + help +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/ti_am335x_adc.c linux-libre-4.4.7-gnu/drivers/iio/adc/ti_am335x_adc.c +--- linux-libre-4.4-gnu/drivers/iio/adc/ti_am335x_adc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iio/adc/ti_am335x_adc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -289,7 +289,7 @@ static int tiadc_iio_buffered_hardware_s + goto error_kfifo_free; + + indio_dev->setup_ops = setup_ops; +- indio_dev->modes |= INDIO_BUFFER_HARDWARE; ++ indio_dev->modes |= INDIO_BUFFER_SOFTWARE; + + return 0; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/dac/mcp4725.c linux-libre-4.4.7-gnu/drivers/iio/dac/mcp4725.c +--- linux-libre-4.4-gnu/drivers/iio/dac/mcp4725.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iio/dac/mcp4725.c 2016-04-12 12:09:26.000000000 -0400 +@@ -300,6 +300,7 @@ static int mcp4725_probe(struct i2c_clie + data->client = client; + + indio_dev->dev.parent = &client->dev; ++ indio_dev->name = id->name; + indio_dev->info = &mcp4725_info; + indio_dev->channels = &mcp4725_channel; + indio_dev->num_channels = 1; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/imu/adis_buffer.c linux-libre-4.4.7-gnu/drivers/iio/imu/adis_buffer.c +--- linux-libre-4.4-gnu/drivers/iio/imu/adis_buffer.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iio/imu/adis_buffer.c 2016-04-12 12:09:26.000000000 -0400 +@@ -43,7 +43,7 @@ int adis_update_scan_mode(struct iio_dev + return -ENOMEM; + + rx = adis->buffer; +- tx = rx + indio_dev->scan_bytes; ++ tx = rx + scan_count; + + spi_message_init(&adis->msg); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/inkern.c linux-libre-4.4.7-gnu/drivers/iio/inkern.c +--- linux-libre-4.4-gnu/drivers/iio/inkern.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iio/inkern.c 2016-04-12 12:09:26.000000000 -0400 +@@ -351,6 +351,8 @@ EXPORT_SYMBOL_GPL(iio_channel_get); + + void iio_channel_release(struct iio_channel *channel) + { ++ if (!channel) ++ return; + iio_device_put(channel->indio_dev); + kfree(channel); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/light/acpi-als.c linux-libre-4.4.7-gnu/drivers/iio/light/acpi-als.c +--- linux-libre-4.4-gnu/drivers/iio/light/acpi-als.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iio/light/acpi-als.c 2016-04-12 12:09:26.000000000 -0400 +@@ -54,7 +54,9 @@ static const struct iio_chan_spec acpi_a + .realbits = 32, + .storagebits = 32, + }, +- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), ++ /* _RAW is here for backward ABI compatibility */ ++ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | ++ BIT(IIO_CHAN_INFO_PROCESSED), + }, + }; + +@@ -152,7 +154,7 @@ static int acpi_als_read_raw(struct iio_ + s32 temp_val; + int ret; + +- if (mask != IIO_CHAN_INFO_RAW) ++ if ((mask != IIO_CHAN_INFO_PROCESSED) && (mask != IIO_CHAN_INFO_RAW)) + return -EINVAL; + + /* we support only illumination (_ALI) so far. */ +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/light/ltr501.c linux-libre-4.4.7-gnu/drivers/iio/light/ltr501.c +--- linux-libre-4.4-gnu/drivers/iio/light/ltr501.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iio/light/ltr501.c 2016-04-12 12:09:26.000000000 -0400 +@@ -180,7 +180,7 @@ static const struct ltr501_samp_table lt + {500000, 2000000} + }; + +-static unsigned int ltr501_match_samp_freq(const struct ltr501_samp_table *tab, ++static int ltr501_match_samp_freq(const struct ltr501_samp_table *tab, + int len, int val, int val2) + { + int i, freq; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/pressure/mpl115.c linux-libre-4.4.7-gnu/drivers/iio/pressure/mpl115.c +--- linux-libre-4.4-gnu/drivers/iio/pressure/mpl115.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iio/pressure/mpl115.c 2016-04-12 12:09:26.000000000 -0400 +@@ -117,7 +117,7 @@ static int mpl115_read_raw(struct iio_de + *val = ret >> 6; + return IIO_VAL_INT; + case IIO_CHAN_INFO_OFFSET: +- *val = 605; ++ *val = -605; + *val2 = 750000; + return IIO_VAL_INT_PLUS_MICRO; + case IIO_CHAN_INFO_SCALE: +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/cma.c linux-libre-4.4.7-gnu/drivers/infiniband/core/cma.c +--- linux-libre-4.4-gnu/drivers/infiniband/core/cma.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/infiniband/core/cma.c 2016-04-12 12:09:26.000000000 -0400 +@@ -453,7 +453,7 @@ static inline int cma_validate_port(stru + if ((dev_type != ARPHRD_INFINIBAND) && rdma_protocol_ib(device, port)) + return ret; + +- if (dev_type == ARPHRD_ETHER) ++ if (dev_type == ARPHRD_ETHER && rdma_protocol_roce(device, port)) + ndev = dev_get_by_index(&init_net, bound_if_index); + + ret = ib_find_cached_gid_by_port(device, gid, port, ndev, NULL); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/cm.c linux-libre-4.4.7-gnu/drivers/infiniband/core/cm.c +--- linux-libre-4.4-gnu/drivers/infiniband/core/cm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/infiniband/core/cm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -782,11 +782,11 @@ static void cm_enter_timewait(struct cm_ + wait_time = cm_convert_to_ms(cm_id_priv->av.timeout); + + /* Check if the device started its remove_one */ +- spin_lock_irq(&cm.lock); ++ spin_lock_irqsave(&cm.lock, flags); + if (!cm_dev->going_down) + queue_delayed_work(cm.wq, &cm_id_priv->timewait_info->work.work, + msecs_to_jiffies(wait_time)); +- spin_unlock_irq(&cm.lock); ++ spin_unlock_irqrestore(&cm.lock, flags); + + cm_id_priv->timewait_info = NULL; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/cxgb3/iwch_cm.c linux-libre-4.4.7-gnu/drivers/infiniband/hw/cxgb3/iwch_cm.c +--- linux-libre-4.4-gnu/drivers/infiniband/hw/cxgb3/iwch_cm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/infiniband/hw/cxgb3/iwch_cm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -149,7 +149,7 @@ static int iwch_l2t_send(struct t3cdev * + error = l2t_send(tdev, skb, l2e); + if (error < 0) + kfree_skb(skb); +- return error; ++ return error < 0 ? error : 0; + } + + int iwch_cxgb3_ofld_send(struct t3cdev *tdev, struct sk_buff *skb) +@@ -165,7 +165,7 @@ int iwch_cxgb3_ofld_send(struct t3cdev * + error = cxgb3_ofld_send(tdev, skb); + if (error < 0) + kfree_skb(skb); +- return error; ++ return error < 0 ? error : 0; + } + + static void release_tid(struct t3cdev *tdev, u32 hwtid, struct sk_buff *skb) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/mlx5/cq.c linux-libre-4.4.7-gnu/drivers/infiniband/hw/mlx5/cq.c +--- linux-libre-4.4-gnu/drivers/infiniband/hw/mlx5/cq.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/infiniband/hw/mlx5/cq.c 2016-04-12 12:09:26.000000000 -0400 +@@ -756,7 +756,7 @@ struct ib_cq *mlx5_ib_create_cq(struct i + int uninitialized_var(index); + int uninitialized_var(inlen); + int cqe_size; +- int irqn; ++ unsigned int irqn; + int eqn; + int err; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/mlx5/main.c linux-libre-4.4.7-gnu/drivers/infiniband/hw/mlx5/main.c +--- linux-libre-4.4-gnu/drivers/infiniband/hw/mlx5/main.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/infiniband/hw/mlx5/main.c 2016-04-12 12:09:26.000000000 -0400 +@@ -275,7 +275,7 @@ static int mlx5_ib_query_device(struct i + props->max_sge = min(max_rq_sg, max_sq_sg); + props->max_sge_rd = props->max_sge; + props->max_cq = 1 << MLX5_CAP_GEN(mdev, log_max_cq); +- props->max_cqe = (1 << MLX5_CAP_GEN(mdev, log_max_eq_sz)) - 1; ++ props->max_cqe = (1 << MLX5_CAP_GEN(mdev, log_max_cq_sz)) - 1; + props->max_mr = 1 << MLX5_CAP_GEN(mdev, log_max_mkey); + props->max_pd = 1 << MLX5_CAP_GEN(mdev, log_max_pd); + props->max_qp_rd_atom = 1 << MLX5_CAP_GEN(mdev, log_max_ra_req_qp); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/qib/qib_qp.c linux-libre-4.4.7-gnu/drivers/infiniband/hw/qib/qib_qp.c +--- linux-libre-4.4-gnu/drivers/infiniband/hw/qib/qib_qp.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/infiniband/hw/qib/qib_qp.c 2016-04-12 12:09:26.000000000 -0400 +@@ -100,9 +100,10 @@ static u32 credit_table[31] = { + 32768 /* 1E */ + }; + +-static void get_map_page(struct qib_qpn_table *qpt, struct qpn_map *map) ++static void get_map_page(struct qib_qpn_table *qpt, struct qpn_map *map, ++ gfp_t gfp) + { +- unsigned long page = get_zeroed_page(GFP_KERNEL); ++ unsigned long page = get_zeroed_page(gfp); + + /* + * Free the page if someone raced with us installing it. +@@ -121,7 +122,7 @@ static void get_map_page(struct qib_qpn_ + * zero/one for QP type IB_QPT_SMI/IB_QPT_GSI. + */ + static int alloc_qpn(struct qib_devdata *dd, struct qib_qpn_table *qpt, +- enum ib_qp_type type, u8 port) ++ enum ib_qp_type type, u8 port, gfp_t gfp) + { + u32 i, offset, max_scan, qpn; + struct qpn_map *map; +@@ -151,7 +152,7 @@ static int alloc_qpn(struct qib_devdata + max_scan = qpt->nmaps - !offset; + for (i = 0;;) { + if (unlikely(!map->page)) { +- get_map_page(qpt, map); ++ get_map_page(qpt, map, gfp); + if (unlikely(!map->page)) + break; + } +@@ -983,13 +984,21 @@ struct ib_qp *qib_create_qp(struct ib_pd + size_t sz; + size_t sg_list_sz; + struct ib_qp *ret; ++ gfp_t gfp; ++ + + if (init_attr->cap.max_send_sge > ib_qib_max_sges || + init_attr->cap.max_send_wr > ib_qib_max_qp_wrs || +- init_attr->create_flags) { +- ret = ERR_PTR(-EINVAL); +- goto bail; +- } ++ init_attr->create_flags & ~(IB_QP_CREATE_USE_GFP_NOIO)) ++ return ERR_PTR(-EINVAL); ++ ++ /* GFP_NOIO is applicable in RC QPs only */ ++ if (init_attr->create_flags & IB_QP_CREATE_USE_GFP_NOIO && ++ init_attr->qp_type != IB_QPT_RC) ++ return ERR_PTR(-EINVAL); ++ ++ gfp = init_attr->create_flags & IB_QP_CREATE_USE_GFP_NOIO ? ++ GFP_NOIO : GFP_KERNEL; + + /* Check receive queue parameters if no SRQ is specified. */ + if (!init_attr->srq) { +@@ -1021,7 +1030,8 @@ struct ib_qp *qib_create_qp(struct ib_pd + sz = sizeof(struct qib_sge) * + init_attr->cap.max_send_sge + + sizeof(struct qib_swqe); +- swq = vmalloc((init_attr->cap.max_send_wr + 1) * sz); ++ swq = __vmalloc((init_attr->cap.max_send_wr + 1) * sz, ++ gfp, PAGE_KERNEL); + if (swq == NULL) { + ret = ERR_PTR(-ENOMEM); + goto bail; +@@ -1037,13 +1047,13 @@ struct ib_qp *qib_create_qp(struct ib_pd + } else if (init_attr->cap.max_recv_sge > 1) + sg_list_sz = sizeof(*qp->r_sg_list) * + (init_attr->cap.max_recv_sge - 1); +- qp = kzalloc(sz + sg_list_sz, GFP_KERNEL); ++ qp = kzalloc(sz + sg_list_sz, gfp); + if (!qp) { + ret = ERR_PTR(-ENOMEM); + goto bail_swq; + } + RCU_INIT_POINTER(qp->next, NULL); +- qp->s_hdr = kzalloc(sizeof(*qp->s_hdr), GFP_KERNEL); ++ qp->s_hdr = kzalloc(sizeof(*qp->s_hdr), gfp); + if (!qp->s_hdr) { + ret = ERR_PTR(-ENOMEM); + goto bail_qp; +@@ -1058,8 +1068,16 @@ struct ib_qp *qib_create_qp(struct ib_pd + qp->r_rq.max_sge = init_attr->cap.max_recv_sge; + sz = (sizeof(struct ib_sge) * qp->r_rq.max_sge) + + sizeof(struct qib_rwqe); +- qp->r_rq.wq = vmalloc_user(sizeof(struct qib_rwq) + +- qp->r_rq.size * sz); ++ if (gfp != GFP_NOIO) ++ qp->r_rq.wq = vmalloc_user( ++ sizeof(struct qib_rwq) + ++ qp->r_rq.size * sz); ++ else ++ qp->r_rq.wq = __vmalloc( ++ sizeof(struct qib_rwq) + ++ qp->r_rq.size * sz, ++ gfp, PAGE_KERNEL); ++ + if (!qp->r_rq.wq) { + ret = ERR_PTR(-ENOMEM); + goto bail_qp; +@@ -1090,7 +1108,7 @@ struct ib_qp *qib_create_qp(struct ib_pd + dev = to_idev(ibpd->device); + dd = dd_from_dev(dev); + err = alloc_qpn(dd, &dev->qpn_table, init_attr->qp_type, +- init_attr->port_num); ++ init_attr->port_num, gfp); + if (err < 0) { + ret = ERR_PTR(err); + vfree(qp->r_rq.wq); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/qib/qib_verbs_mcast.c linux-libre-4.4.7-gnu/drivers/infiniband/hw/qib/qib_verbs_mcast.c +--- linux-libre-4.4-gnu/drivers/infiniband/hw/qib/qib_verbs_mcast.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/infiniband/hw/qib/qib_verbs_mcast.c 2016-04-12 12:09:26.000000000 -0400 +@@ -286,15 +286,13 @@ int qib_multicast_detach(struct ib_qp *i + struct qib_ibdev *dev = to_idev(ibqp->device); + struct qib_ibport *ibp = to_iport(ibqp->device, qp->port_num); + struct qib_mcast *mcast = NULL; +- struct qib_mcast_qp *p, *tmp; ++ struct qib_mcast_qp *p, *tmp, *delp = NULL; + struct rb_node *n; + int last = 0; + int ret; + +- if (ibqp->qp_num <= 1 || qp->state == IB_QPS_RESET) { +- ret = -EINVAL; +- goto bail; +- } ++ if (ibqp->qp_num <= 1 || qp->state == IB_QPS_RESET) ++ return -EINVAL; + + spin_lock_irq(&ibp->lock); + +@@ -303,8 +301,7 @@ int qib_multicast_detach(struct ib_qp *i + while (1) { + if (n == NULL) { + spin_unlock_irq(&ibp->lock); +- ret = -EINVAL; +- goto bail; ++ return -EINVAL; + } + + mcast = rb_entry(n, struct qib_mcast, rb_node); +@@ -328,6 +325,7 @@ int qib_multicast_detach(struct ib_qp *i + */ + list_del_rcu(&p->list); + mcast->n_attached--; ++ delp = p; + + /* If this was the last attached QP, remove the GID too. */ + if (list_empty(&mcast->qp_list)) { +@@ -338,15 +336,16 @@ int qib_multicast_detach(struct ib_qp *i + } + + spin_unlock_irq(&ibp->lock); ++ /* QP not attached */ ++ if (!delp) ++ return -EINVAL; ++ /* ++ * Wait for any list walkers to finish before freeing the ++ * list element. ++ */ ++ wait_event(mcast->wait, atomic_read(&mcast->refcount) <= 1); ++ qib_mcast_qp_free(delp); + +- if (p) { +- /* +- * Wait for any list walkers to finish before freeing the +- * list element. +- */ +- wait_event(mcast->wait, atomic_read(&mcast->refcount) <= 1); +- qib_mcast_qp_free(p); +- } + if (last) { + atomic_dec(&mcast->refcount); + wait_event(mcast->wait, !atomic_read(&mcast->refcount)); +@@ -355,11 +354,7 @@ int qib_multicast_detach(struct ib_qp *i + dev->n_mcast_grps_allocated--; + spin_unlock_irq(&dev->n_mcast_grps_lock); + } +- +- ret = 0; +- +-bail: +- return ret; ++ return 0; + } + + int qib_mcast_tree_empty(struct qib_ibport *ibp) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib_multicast.c linux-libre-4.4.7-gnu/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +--- linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib_multicast.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/infiniband/ulp/ipoib/ipoib_multicast.c 2016-04-12 12:09:26.000000000 -0400 +@@ -456,7 +456,10 @@ out_locked: + return status; + } + +-static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast) ++/* ++ * Caller must hold 'priv->lock' ++ */ ++static int ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast) + { + struct ipoib_dev_priv *priv = netdev_priv(dev); + struct ib_sa_multicast *multicast; +@@ -466,6 +469,10 @@ static void ipoib_mcast_join(struct net_ + ib_sa_comp_mask comp_mask; + int ret = 0; + ++ if (!priv->broadcast || ++ !test_bit(IPOIB_FLAG_OPER_UP, &priv->flags)) ++ return -EINVAL; ++ + ipoib_dbg_mcast(priv, "joining MGID %pI6\n", mcast->mcmember.mgid.raw); + + rec.mgid = mcast->mcmember.mgid; +@@ -525,20 +532,23 @@ static void ipoib_mcast_join(struct net_ + rec.join_state = 4; + #endif + } ++ spin_unlock_irq(&priv->lock); + + multicast = ib_sa_join_multicast(&ipoib_sa_client, priv->ca, priv->port, + &rec, comp_mask, GFP_KERNEL, + ipoib_mcast_join_complete, mcast); ++ spin_lock_irq(&priv->lock); + if (IS_ERR(multicast)) { + ret = PTR_ERR(multicast); + ipoib_warn(priv, "ib_sa_join_multicast failed, status %d\n", ret); +- spin_lock_irq(&priv->lock); + /* Requeue this join task with a backoff delay */ + __ipoib_mcast_schedule_join_thread(priv, mcast, 1); + clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); + spin_unlock_irq(&priv->lock); + complete(&mcast->done); ++ spin_lock_irq(&priv->lock); + } ++ return 0; + } + + void ipoib_mcast_join_task(struct work_struct *work) +@@ -620,9 +630,10 @@ void ipoib_mcast_join_task(struct work_s + /* Found the next unjoined group */ + init_completion(&mcast->done); + set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); +- spin_unlock_irq(&priv->lock); +- ipoib_mcast_join(dev, mcast); +- spin_lock_irq(&priv->lock); ++ if (ipoib_mcast_join(dev, mcast)) { ++ spin_unlock_irq(&priv->lock); ++ return; ++ } + } else if (!delay_until || + time_before(mcast->delay_until, delay_until)) + delay_until = mcast->delay_until; +@@ -641,10 +652,9 @@ out: + if (mcast) { + init_completion(&mcast->done); + set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); ++ ipoib_mcast_join(dev, mcast); + } + spin_unlock_irq(&priv->lock); +- if (mcast) +- ipoib_mcast_join(dev, mcast); + } + + int ipoib_mcast_start_thread(struct net_device *dev) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/isert/ib_isert.c linux-libre-4.4.7-gnu/drivers/infiniband/ulp/isert/ib_isert.c +--- linux-libre-4.4-gnu/drivers/infiniband/ulp/isert/ib_isert.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/infiniband/ulp/isert/ib_isert.c 2016-04-12 12:09:26.000000000 -0400 +@@ -66,6 +66,7 @@ isert_rdma_accept(struct isert_conn *ise + struct rdma_cm_id *isert_setup_id(struct isert_np *isert_np); + + static void isert_release_work(struct work_struct *work); ++static void isert_wait4flush(struct isert_conn *isert_conn); + + static inline bool + isert_prot_cmd(struct isert_conn *conn, struct se_cmd *cmd) +@@ -815,12 +816,31 @@ isert_put_conn(struct isert_conn *isert_ + kref_put(&isert_conn->kref, isert_release_kref); + } + ++static void ++isert_handle_unbound_conn(struct isert_conn *isert_conn) ++{ ++ struct isert_np *isert_np = isert_conn->cm_id->context; ++ ++ mutex_lock(&isert_np->mutex); ++ if (!list_empty(&isert_conn->node)) { ++ /* ++ * This means iscsi doesn't know this connection ++ * so schedule a cleanup ourselves ++ */ ++ list_del_init(&isert_conn->node); ++ isert_put_conn(isert_conn); ++ complete(&isert_conn->wait); ++ queue_work(isert_release_wq, &isert_conn->release_work); ++ } ++ mutex_unlock(&isert_np->mutex); ++} ++ + /** + * isert_conn_terminate() - Initiate connection termination + * @isert_conn: isert connection struct + * + * Notes: +- * In case the connection state is FULL_FEATURE, move state ++ * In case the connection state is BOUND, move state + * to TEMINATING and start teardown sequence (rdma_disconnect). + * In case the connection state is UP, complete flush as well. + * +@@ -832,23 +852,19 @@ isert_conn_terminate(struct isert_conn * + { + int err; + +- switch (isert_conn->state) { +- case ISER_CONN_TERMINATING: +- break; +- case ISER_CONN_UP: +- case ISER_CONN_FULL_FEATURE: /* FALLTHRU */ +- isert_info("Terminating conn %p state %d\n", +- isert_conn, isert_conn->state); +- isert_conn->state = ISER_CONN_TERMINATING; +- err = rdma_disconnect(isert_conn->cm_id); +- if (err) +- isert_warn("Failed rdma_disconnect isert_conn %p\n", +- isert_conn); +- break; +- default: +- isert_warn("conn %p teminating in state %d\n", +- isert_conn, isert_conn->state); +- } ++ if (isert_conn->state >= ISER_CONN_TERMINATING) ++ return; ++ ++ isert_info("Terminating conn %p state %d\n", ++ isert_conn, isert_conn->state); ++ isert_conn->state = ISER_CONN_TERMINATING; ++ err = rdma_disconnect(isert_conn->cm_id); ++ if (err) ++ isert_warn("Failed rdma_disconnect isert_conn %p\n", ++ isert_conn); ++ ++ isert_info("conn %p completing wait\n", isert_conn); ++ complete(&isert_conn->wait); + } + + static int +@@ -882,35 +898,27 @@ static int + isert_disconnected_handler(struct rdma_cm_id *cma_id, + enum rdma_cm_event_type event) + { +- struct isert_np *isert_np = cma_id->context; +- struct isert_conn *isert_conn; +- bool terminating = false; +- +- if (isert_np->cm_id == cma_id) +- return isert_np_cma_handler(cma_id->context, event); +- +- isert_conn = cma_id->qp->qp_context; ++ struct isert_conn *isert_conn = cma_id->qp->qp_context; + + mutex_lock(&isert_conn->mutex); +- terminating = (isert_conn->state == ISER_CONN_TERMINATING); +- isert_conn_terminate(isert_conn); +- mutex_unlock(&isert_conn->mutex); +- +- isert_info("conn %p completing wait\n", isert_conn); +- complete(&isert_conn->wait); +- +- if (terminating) +- goto out; +- +- mutex_lock(&isert_np->mutex); +- if (!list_empty(&isert_conn->node)) { +- list_del_init(&isert_conn->node); +- isert_put_conn(isert_conn); +- queue_work(isert_release_wq, &isert_conn->release_work); ++ switch (isert_conn->state) { ++ case ISER_CONN_TERMINATING: ++ break; ++ case ISER_CONN_UP: ++ isert_conn_terminate(isert_conn); ++ isert_wait4flush(isert_conn); ++ isert_handle_unbound_conn(isert_conn); ++ break; ++ case ISER_CONN_BOUND: ++ case ISER_CONN_FULL_FEATURE: /* FALLTHRU */ ++ iscsit_cause_connection_reinstatement(isert_conn->conn, 0); ++ break; ++ default: ++ isert_warn("conn %p teminating in state %d\n", ++ isert_conn, isert_conn->state); + } +- mutex_unlock(&isert_np->mutex); ++ mutex_unlock(&isert_conn->mutex); + +-out: + return 0; + } + +@@ -929,12 +937,16 @@ isert_connect_error(struct rdma_cm_id *c + static int + isert_cma_handler(struct rdma_cm_id *cma_id, struct rdma_cm_event *event) + { ++ struct isert_np *isert_np = cma_id->context; + int ret = 0; + + isert_info("%s (%d): status %d id %p np %p\n", + rdma_event_msg(event->event), event->event, + event->status, cma_id, cma_id->context); + ++ if (isert_np->cm_id == cma_id) ++ return isert_np_cma_handler(cma_id->context, event->event); ++ + switch (event->event) { + case RDMA_CM_EVENT_CONNECT_REQUEST: + ret = isert_connect_request(cma_id, event); +@@ -980,13 +992,10 @@ isert_post_recvm(struct isert_conn *iser + rx_wr--; + rx_wr->next = NULL; /* mark end of work requests list */ + +- isert_conn->post_recv_buf_count += count; + ret = ib_post_recv(isert_conn->qp, isert_conn->rx_wr, + &rx_wr_failed); +- if (ret) { ++ if (ret) + isert_err("ib_post_recv() failed with ret: %d\n", ret); +- isert_conn->post_recv_buf_count -= count; +- } + + return ret; + } +@@ -1002,12 +1011,9 @@ isert_post_recv(struct isert_conn *isert + rx_wr.num_sge = 1; + rx_wr.next = NULL; + +- isert_conn->post_recv_buf_count++; + ret = ib_post_recv(isert_conn->qp, &rx_wr, &rx_wr_failed); +- if (ret) { ++ if (ret) + isert_err("ib_post_recv() failed with ret: %d\n", ret); +- isert_conn->post_recv_buf_count--; +- } + + return ret; + } +@@ -1120,12 +1126,9 @@ isert_rdma_post_recvl(struct isert_conn + rx_wr.sg_list = &sge; + rx_wr.num_sge = 1; + +- isert_conn->post_recv_buf_count++; + ret = ib_post_recv(isert_conn->qp, &rx_wr, &rx_wr_fail); +- if (ret) { ++ if (ret) + isert_err("ib_post_recv() failed: %d\n", ret); +- isert_conn->post_recv_buf_count--; +- } + + return ret; + } +@@ -1620,7 +1623,6 @@ isert_rcv_completion(struct iser_rx_desc + ib_dma_sync_single_for_device(ib_dev, rx_dma, rx_buflen, + DMA_FROM_DEVICE); + +- isert_conn->post_recv_buf_count--; + } + + static int +@@ -2035,7 +2037,8 @@ is_isert_tx_desc(struct isert_conn *iser + void *start = isert_conn->rx_descs; + int len = ISERT_QP_MAX_RECV_DTOS * sizeof(*isert_conn->rx_descs); + +- if (wr_id >= start && wr_id < start + len) ++ if ((wr_id >= start && wr_id < start + len) || ++ (wr_id == isert_conn->login_req_buf)) + return false; + + return true; +@@ -2059,10 +2062,6 @@ isert_cq_comp_err(struct isert_conn *ise + isert_unmap_tx_desc(desc, ib_dev); + else + isert_completion_put(desc, isert_cmd, ib_dev, true); +- } else { +- isert_conn->post_recv_buf_count--; +- if (!isert_conn->post_recv_buf_count) +- iscsit_cause_connection_reinstatement(isert_conn->conn, 0); + } + } + +@@ -3193,6 +3192,7 @@ accept_wait: + + conn->context = isert_conn; + isert_conn->conn = conn; ++ isert_conn->state = ISER_CONN_BOUND; + + isert_set_conn_info(np, conn, isert_conn); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/isert/ib_isert.h linux-libre-4.4.7-gnu/drivers/infiniband/ulp/isert/ib_isert.h +--- linux-libre-4.4-gnu/drivers/infiniband/ulp/isert/ib_isert.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/infiniband/ulp/isert/ib_isert.h 2016-04-12 12:09:26.000000000 -0400 +@@ -50,6 +50,7 @@ enum iser_ib_op_code { + enum iser_conn_state { + ISER_CONN_INIT, + ISER_CONN_UP, ++ ISER_CONN_BOUND, + ISER_CONN_FULL_FEATURE, + ISER_CONN_TERMINATING, + ISER_CONN_DOWN, +@@ -144,7 +145,6 @@ struct isert_device; + + struct isert_conn { + enum iser_conn_state state; +- int post_recv_buf_count; + u32 responder_resources; + u32 initiator_depth; + bool pi_support; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/srpt/ib_srpt.c linux-libre-4.4.7-gnu/drivers/infiniband/ulp/srpt/ib_srpt.c +--- linux-libre-4.4-gnu/drivers/infiniband/ulp/srpt/ib_srpt.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/infiniband/ulp/srpt/ib_srpt.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1737,47 +1737,6 @@ send_sense: + return -1; + } + +-/** +- * srpt_rx_mgmt_fn_tag() - Process a task management function by tag. +- * @ch: RDMA channel of the task management request. +- * @fn: Task management function to perform. +- * @req_tag: Tag of the SRP task management request. +- * @mgmt_ioctx: I/O context of the task management request. +- * +- * Returns zero if the target core will process the task management +- * request asynchronously. +- * +- * Note: It is assumed that the initiator serializes tag-based task management +- * requests. +- */ +-static int srpt_rx_mgmt_fn_tag(struct srpt_send_ioctx *ioctx, u64 tag) +-{ +- struct srpt_device *sdev; +- struct srpt_rdma_ch *ch; +- struct srpt_send_ioctx *target; +- int ret, i; +- +- ret = -EINVAL; +- ch = ioctx->ch; +- BUG_ON(!ch); +- BUG_ON(!ch->sport); +- sdev = ch->sport->sdev; +- BUG_ON(!sdev); +- spin_lock_irq(&sdev->spinlock); +- for (i = 0; i < ch->rq_size; ++i) { +- target = ch->ioctx_ring[i]; +- if (target->cmd.se_lun == ioctx->cmd.se_lun && +- target->cmd.tag == tag && +- srpt_get_cmd_state(target) != SRPT_STATE_DONE) { +- ret = 0; +- /* now let the target core abort &target->cmd; */ +- break; +- } +- } +- spin_unlock_irq(&sdev->spinlock); +- return ret; +-} +- + static int srp_tmr_to_tcm(int fn) + { + switch (fn) { +@@ -1812,7 +1771,6 @@ static void srpt_handle_tsk_mgmt(struct + struct se_cmd *cmd; + struct se_session *sess = ch->sess; + uint64_t unpacked_lun; +- uint32_t tag = 0; + int tcm_tmr; + int rc; + +@@ -1828,25 +1786,10 @@ static void srpt_handle_tsk_mgmt(struct + srpt_set_cmd_state(send_ioctx, SRPT_STATE_MGMT); + send_ioctx->cmd.tag = srp_tsk->tag; + tcm_tmr = srp_tmr_to_tcm(srp_tsk->tsk_mgmt_func); +- if (tcm_tmr < 0) { +- send_ioctx->cmd.se_tmr_req->response = +- TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED; +- goto fail; +- } + unpacked_lun = srpt_unpack_lun((uint8_t *)&srp_tsk->lun, + sizeof(srp_tsk->lun)); +- +- if (srp_tsk->tsk_mgmt_func == SRP_TSK_ABORT_TASK) { +- rc = srpt_rx_mgmt_fn_tag(send_ioctx, srp_tsk->task_tag); +- if (rc < 0) { +- send_ioctx->cmd.se_tmr_req->response = +- TMR_TASK_DOES_NOT_EXIST; +- goto fail; +- } +- tag = srp_tsk->task_tag; +- } + rc = target_submit_tmr(&send_ioctx->cmd, sess, NULL, unpacked_lun, +- srp_tsk, tcm_tmr, GFP_KERNEL, tag, ++ srp_tsk, tcm_tmr, GFP_KERNEL, srp_tsk->task_tag, + TARGET_SCF_ACK_KREF); + if (rc != 0) { + send_ioctx->cmd.se_tmr_req->response = TMR_FUNCTION_REJECTED; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/misc/ati_remote2.c linux-libre-4.4.7-gnu/drivers/input/misc/ati_remote2.c +--- linux-libre-4.4-gnu/drivers/input/misc/ati_remote2.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/input/misc/ati_remote2.c 2016-04-12 12:09:26.000000000 -0400 +@@ -817,26 +817,49 @@ static int ati_remote2_probe(struct usb_ + + ar2->udev = udev; + ++ /* Sanity check, first interface must have an endpoint */ ++ if (alt->desc.bNumEndpoints < 1 || !alt->endpoint) { ++ dev_err(&interface->dev, ++ "%s(): interface 0 must have an endpoint\n", __func__); ++ r = -ENODEV; ++ goto fail1; ++ } + ar2->intf[0] = interface; + ar2->ep[0] = &alt->endpoint[0].desc; + ++ /* Sanity check, the device must have two interfaces */ + ar2->intf[1] = usb_ifnum_to_if(udev, 1); ++ if ((udev->actconfig->desc.bNumInterfaces < 2) || !ar2->intf[1]) { ++ dev_err(&interface->dev, "%s(): need 2 interfaces, found %d\n", ++ __func__, udev->actconfig->desc.bNumInterfaces); ++ r = -ENODEV; ++ goto fail1; ++ } ++ + r = usb_driver_claim_interface(&ati_remote2_driver, ar2->intf[1], ar2); + if (r) + goto fail1; ++ ++ /* Sanity check, second interface must have an endpoint */ + alt = ar2->intf[1]->cur_altsetting; ++ if (alt->desc.bNumEndpoints < 1 || !alt->endpoint) { ++ dev_err(&interface->dev, ++ "%s(): interface 1 must have an endpoint\n", __func__); ++ r = -ENODEV; ++ goto fail2; ++ } + ar2->ep[1] = &alt->endpoint[0].desc; + + r = ati_remote2_urb_init(ar2); + if (r) +- goto fail2; ++ goto fail3; + + ar2->channel_mask = channel_mask; + ar2->mode_mask = mode_mask; + + r = ati_remote2_setup(ar2, ar2->channel_mask); + if (r) +- goto fail2; ++ goto fail3; + + usb_make_path(udev, ar2->phys, sizeof(ar2->phys)); + strlcat(ar2->phys, "/input0", sizeof(ar2->phys)); +@@ -845,11 +868,11 @@ static int ati_remote2_probe(struct usb_ + + r = sysfs_create_group(&udev->dev.kobj, &ati_remote2_attr_group); + if (r) +- goto fail2; ++ goto fail3; + + r = ati_remote2_input_init(ar2); + if (r) +- goto fail3; ++ goto fail4; + + usb_set_intfdata(interface, ar2); + +@@ -857,10 +880,11 @@ static int ati_remote2_probe(struct usb_ + + return 0; + +- fail3: ++ fail4: + sysfs_remove_group(&udev->dev.kobj, &ati_remote2_attr_group); +- fail2: ++ fail3: + ati_remote2_urb_cleanup(ar2); ++ fail2: + usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]); + fail1: + kfree(ar2); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/misc/ims-pcu.c linux-libre-4.4.7-gnu/drivers/input/misc/ims-pcu.c +--- linux-libre-4.4-gnu/drivers/input/misc/ims-pcu.c 2016-01-10 21:13:24.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/input/misc/ims-pcu.c 2016-04-12 21:29:44.000000000 -0400 +@@ -1663,6 +1663,8 @@ static int ims_pcu_parse_cdc_data(struct + + pcu->ctrl_intf = usb_ifnum_to_if(pcu->udev, + union_desc->bMasterInterface0); ++ if (!pcu->ctrl_intf) ++ return -EINVAL; + + alt = pcu->ctrl_intf->cur_altsetting; + pcu->ep_ctrl = &alt->endpoint[0].desc; +@@ -1670,6 +1672,8 @@ static int ims_pcu_parse_cdc_data(struct + + pcu->data_intf = usb_ifnum_to_if(pcu->udev, + union_desc->bSlaveInterface0); ++ if (!pcu->data_intf) ++ return -EINVAL; + + alt = pcu->data_intf->cur_altsetting; + if (alt->desc.bNumEndpoints != 2) { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/misc/powermate.c linux-libre-4.4.7-gnu/drivers/input/misc/powermate.c +--- linux-libre-4.4-gnu/drivers/input/misc/powermate.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/input/misc/powermate.c 2016-04-12 12:09:26.000000000 -0400 +@@ -307,6 +307,9 @@ static int powermate_probe(struct usb_in + int error = -ENOMEM; + + interface = intf->cur_altsetting; ++ if (interface->desc.bNumEndpoints < 1) ++ return -EINVAL; ++ + endpoint = &interface->endpoint[0].desc; + if (!usb_endpoint_is_int_in(endpoint)) + return -EIO; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/mouse/elantech.c linux-libre-4.4.7-gnu/drivers/input/mouse/elantech.c +--- linux-libre-4.4-gnu/drivers/input/mouse/elantech.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/input/mouse/elantech.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1222,7 +1222,7 @@ static int elantech_set_input_params(str + input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2, + ETP_WMAX_V2, 0, 0); + } +- input_mt_init_slots(dev, 2, 0); ++ input_mt_init_slots(dev, 2, INPUT_MT_SEMI_MT); + input_set_abs_params(dev, ABS_MT_POSITION_X, x_min, x_max, 0, 0); + input_set_abs_params(dev, ABS_MT_POSITION_Y, y_min, y_max, 0, 0); + break; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/mouse/synaptics.c linux-libre-4.4.7-gnu/drivers/input/mouse/synaptics.c +--- linux-libre-4.4-gnu/drivers/input/mouse/synaptics.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/input/mouse/synaptics.c 2016-04-12 12:09:26.000000000 -0400 +@@ -862,8 +862,9 @@ static void synaptics_report_ext_buttons + if (!SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap)) + return; + +- /* Bug in FW 8.1, buttons are reported only when ExtBit is 1 */ +- if (SYN_ID_FULL(priv->identity) == 0x801 && ++ /* Bug in FW 8.1 & 8.2, buttons are reported only when ExtBit is 1 */ ++ if ((SYN_ID_FULL(priv->identity) == 0x801 || ++ SYN_ID_FULL(priv->identity) == 0x802) && + !((psmouse->packet[0] ^ psmouse->packet[3]) & 0x02)) + return; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/mouse/vmmouse.c linux-libre-4.4.7-gnu/drivers/input/mouse/vmmouse.c +--- linux-libre-4.4-gnu/drivers/input/mouse/vmmouse.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/input/mouse/vmmouse.c 2016-04-12 12:09:26.000000000 -0400 +@@ -458,8 +458,6 @@ int vmmouse_init(struct psmouse *psmouse + priv->abs_dev = abs_dev; + psmouse->private = priv; + +- input_set_capability(rel_dev, EV_REL, REL_WHEEL); +- + /* Set up and register absolute device */ + snprintf(priv->phys, sizeof(priv->phys), "%s/input1", + psmouse->ps2dev.serio->phys); +@@ -475,10 +473,6 @@ int vmmouse_init(struct psmouse *psmouse + abs_dev->id.version = psmouse->model; + abs_dev->dev.parent = &psmouse->ps2dev.serio->dev; + +- error = input_register_device(priv->abs_dev); +- if (error) +- goto init_fail; +- + /* Set absolute device capabilities */ + input_set_capability(abs_dev, EV_KEY, BTN_LEFT); + input_set_capability(abs_dev, EV_KEY, BTN_RIGHT); +@@ -488,6 +482,13 @@ int vmmouse_init(struct psmouse *psmouse + input_set_abs_params(abs_dev, ABS_X, 0, VMMOUSE_MAX_X, 0, 0); + input_set_abs_params(abs_dev, ABS_Y, 0, VMMOUSE_MAX_Y, 0, 0); + ++ error = input_register_device(priv->abs_dev); ++ if (error) ++ goto init_fail; ++ ++ /* Add wheel capability to the relative device */ ++ input_set_capability(rel_dev, EV_REL, REL_WHEEL); ++ + psmouse->protocol_handler = vmmouse_process_byte; + psmouse->disconnect = vmmouse_disconnect; + psmouse->reconnect = vmmouse_reconnect; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/serio/i8042-x86ia64io.h linux-libre-4.4.7-gnu/drivers/input/serio/i8042-x86ia64io.h +--- linux-libre-4.4-gnu/drivers/input/serio/i8042-x86ia64io.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/input/serio/i8042-x86ia64io.h 2016-04-12 12:09:26.000000000 -0400 +@@ -258,6 +258,13 @@ static const struct dmi_system_id __init + }, + }, + { ++ /* Fujitsu Lifebook U745 */ ++ .matches = { ++ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), ++ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U745"), ++ }, ++ }, ++ { + /* Fujitsu T70H */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/amd_iommu.c linux-libre-4.4.7-gnu/drivers/iommu/amd_iommu.c +--- linux-libre-4.4-gnu/drivers/iommu/amd_iommu.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iommu/amd_iommu.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1905,7 +1905,7 @@ static void do_attach(struct iommu_dev_d + /* Update device table */ + set_dte_entry(dev_data->devid, domain, ats); + if (alias != dev_data->devid) +- set_dte_entry(dev_data->devid, domain, ats); ++ set_dte_entry(alias, domain, ats); + + device_flush_dte(dev_data); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/amd_iommu_init.c linux-libre-4.4.7-gnu/drivers/iommu/amd_iommu_init.c +--- linux-libre-4.4-gnu/drivers/iommu/amd_iommu_init.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iommu/amd_iommu_init.c 2016-04-12 12:09:26.000000000 -0400 +@@ -228,6 +228,10 @@ static int amd_iommu_enable_interrupts(v + static int __init iommu_go_to_state(enum iommu_init_state state); + static void init_device_table_dma(void); + ++static int iommu_pc_get_set_reg_val(struct amd_iommu *iommu, ++ u8 bank, u8 cntr, u8 fxn, ++ u64 *value, bool is_write); ++ + static inline void update_last_devid(u16 devid) + { + if (devid > amd_iommu_last_bdf) +@@ -1016,6 +1020,34 @@ static void amd_iommu_erratum_746_workar + } + + /* ++ * Family15h Model 30h-3fh (IOMMU Mishandles ATS Write Permission) ++ * Workaround: ++ * BIOS should enable ATS write permission check by setting ++ * L2_DEBUG_3[AtsIgnoreIWDis](D0F2xF4_x47[0]) = 1b ++ */ ++static void amd_iommu_ats_write_check_workaround(struct amd_iommu *iommu) ++{ ++ u32 value; ++ ++ if ((boot_cpu_data.x86 != 0x15) || ++ (boot_cpu_data.x86_model < 0x30) || ++ (boot_cpu_data.x86_model > 0x3f)) ++ return; ++ ++ /* Test L2_DEBUG_3[AtsIgnoreIWDis] == 1 */ ++ value = iommu_read_l2(iommu, 0x47); ++ ++ if (value & BIT(0)) ++ return; ++ ++ /* Set L2_DEBUG_3[AtsIgnoreIWDis] = 1 */ ++ iommu_write_l2(iommu, 0x47, value | BIT(0)); ++ ++ pr_info("AMD-Vi: Applying ATS write check workaround for IOMMU at %s\n", ++ dev_name(&iommu->dev->dev)); ++} ++ ++/* + * This function clues the initialization function for one IOMMU + * together and also allocates the command buffer and programs the + * hardware. It does NOT enable the IOMMU. This is done afterwards. +@@ -1142,8 +1174,8 @@ static void init_iommu_perf_ctr(struct a + amd_iommu_pc_present = true; + + /* Check if the performance counters can be written to */ +- if ((0 != amd_iommu_pc_get_set_reg_val(0, 0, 0, 0, &val, true)) || +- (0 != amd_iommu_pc_get_set_reg_val(0, 0, 0, 0, &val2, false)) || ++ if ((0 != iommu_pc_get_set_reg_val(iommu, 0, 0, 0, &val, true)) || ++ (0 != iommu_pc_get_set_reg_val(iommu, 0, 0, 0, &val2, false)) || + (val != val2)) { + pr_err("AMD-Vi: Unable to write to IOMMU perf counter.\n"); + amd_iommu_pc_present = false; +@@ -1284,6 +1316,7 @@ static int iommu_init_pci(struct amd_iom + } + + amd_iommu_erratum_746_workaround(iommu); ++ amd_iommu_ats_write_check_workaround(iommu); + + iommu->iommu_dev = iommu_device_create(&iommu->dev->dev, iommu, + amd_iommu_groups, "ivhd%d", +@@ -2283,22 +2316,15 @@ u8 amd_iommu_pc_get_max_counters(u16 dev + } + EXPORT_SYMBOL(amd_iommu_pc_get_max_counters); + +-int amd_iommu_pc_get_set_reg_val(u16 devid, u8 bank, u8 cntr, u8 fxn, ++static int iommu_pc_get_set_reg_val(struct amd_iommu *iommu, ++ u8 bank, u8 cntr, u8 fxn, + u64 *value, bool is_write) + { +- struct amd_iommu *iommu; + u32 offset; + u32 max_offset_lim; + +- /* Make sure the IOMMU PC resource is available */ +- if (!amd_iommu_pc_present) +- return -ENODEV; +- +- /* Locate the iommu associated with the device ID */ +- iommu = amd_iommu_rlookup_table[devid]; +- + /* Check for valid iommu and pc register indexing */ +- if (WARN_ON((iommu == NULL) || (fxn > 0x28) || (fxn & 7))) ++ if (WARN_ON((fxn > 0x28) || (fxn & 7))) + return -ENODEV; + + offset = (u32)(((0x40|bank) << 12) | (cntr << 8) | fxn); +@@ -2322,3 +2348,16 @@ int amd_iommu_pc_get_set_reg_val(u16 dev + return 0; + } + EXPORT_SYMBOL(amd_iommu_pc_get_set_reg_val); ++ ++int amd_iommu_pc_get_set_reg_val(u16 devid, u8 bank, u8 cntr, u8 fxn, ++ u64 *value, bool is_write) ++{ ++ struct amd_iommu *iommu = amd_iommu_rlookup_table[devid]; ++ ++ /* Make sure the IOMMU PC resource is available */ ++ if (!amd_iommu_pc_present || iommu == NULL) ++ return -ENODEV; ++ ++ return iommu_pc_get_set_reg_val(iommu, bank, cntr, fxn, ++ value, is_write); ++} +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/dmar.c linux-libre-4.4.7-gnu/drivers/iommu/dmar.c +--- linux-libre-4.4-gnu/drivers/iommu/dmar.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iommu/dmar.c 2016-04-12 12:09:26.000000000 -0400 +@@ -329,7 +329,8 @@ static int dmar_pci_bus_notifier(struct + /* Only care about add/remove events for physical functions */ + if (pdev->is_virtfn) + return NOTIFY_DONE; +- if (action != BUS_NOTIFY_ADD_DEVICE && action != BUS_NOTIFY_DEL_DEVICE) ++ if (action != BUS_NOTIFY_ADD_DEVICE && ++ action != BUS_NOTIFY_REMOVED_DEVICE) + return NOTIFY_DONE; + + info = dmar_alloc_pci_notify_info(pdev, action); +@@ -339,7 +340,7 @@ static int dmar_pci_bus_notifier(struct + down_write(&dmar_global_lock); + if (action == BUS_NOTIFY_ADD_DEVICE) + dmar_pci_bus_add_dev(info); +- else if (action == BUS_NOTIFY_DEL_DEVICE) ++ else if (action == BUS_NOTIFY_REMOVED_DEVICE) + dmar_pci_bus_del_dev(info); + up_write(&dmar_global_lock); + +@@ -1347,7 +1348,7 @@ void dmar_disable_qi(struct intel_iommu + + raw_spin_lock_irqsave(&iommu->register_lock, flags); + +- sts = dmar_readq(iommu->reg + DMAR_GSTS_REG); ++ sts = readl(iommu->reg + DMAR_GSTS_REG); + if (!(sts & DMA_GSTS_QIES)) + goto end; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/intel-iommu.c linux-libre-4.4.7-gnu/drivers/iommu/intel-iommu.c +--- linux-libre-4.4-gnu/drivers/iommu/intel-iommu.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iommu/intel-iommu.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1489,7 +1489,7 @@ static void iommu_disable_dev_iotlb(stru + { + struct pci_dev *pdev; + +- if (dev_is_pci(info->dev)) ++ if (!dev_is_pci(info->dev)) + return; + + pdev = to_pci_dev(info->dev); +@@ -4367,7 +4367,7 @@ int dmar_iommu_notify_scope_dev(struct d + rmrru->devices_cnt); + if(ret < 0) + return ret; +- } else if (info->event == BUS_NOTIFY_DEL_DEVICE) { ++ } else if (info->event == BUS_NOTIFY_REMOVED_DEVICE) { + dmar_remove_dev_scope(info, rmrr->segment, + rmrru->devices, rmrru->devices_cnt); + } +@@ -4387,7 +4387,7 @@ int dmar_iommu_notify_scope_dev(struct d + break; + else if(ret < 0) + return ret; +- } else if (info->event == BUS_NOTIFY_DEL_DEVICE) { ++ } else if (info->event == BUS_NOTIFY_REMOVED_DEVICE) { + if (dmar_remove_dev_scope(info, atsr->segment, + atsru->devices, atsru->devices_cnt)) + break; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/intel_irq_remapping.c linux-libre-4.4.7-gnu/drivers/iommu/intel_irq_remapping.c +--- linux-libre-4.4-gnu/drivers/iommu/intel_irq_remapping.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iommu/intel_irq_remapping.c 2016-04-12 12:09:26.000000000 -0400 +@@ -629,7 +629,7 @@ static void iommu_disable_irq_remapping( + + raw_spin_lock_irqsave(&iommu->register_lock, flags); + +- sts = dmar_readq(iommu->reg + DMAR_GSTS_REG); ++ sts = readl(iommu->reg + DMAR_GSTS_REG); + if (!(sts & DMA_GSTS_IRES)) + goto end; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/intel-svm.c linux-libre-4.4.7-gnu/drivers/iommu/intel-svm.c +--- linux-libre-4.4-gnu/drivers/iommu/intel-svm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iommu/intel-svm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -249,12 +249,30 @@ static void intel_flush_pasid_dev(struct + static void intel_mm_release(struct mmu_notifier *mn, struct mm_struct *mm) + { + struct intel_svm *svm = container_of(mn, struct intel_svm, notifier); ++ struct intel_svm_dev *sdev; + ++ /* This might end up being called from exit_mmap(), *before* the page ++ * tables are cleared. And __mmu_notifier_release() will delete us from ++ * the list of notifiers so that our invalidate_range() callback doesn't ++ * get called when the page tables are cleared. So we need to protect ++ * against hardware accessing those page tables. ++ * ++ * We do it by clearing the entry in the PASID table and then flushing ++ * the IOTLB and the PASID table caches. This might upset hardware; ++ * perhaps we'll want to point the PASID to a dummy PGD (like the zero ++ * page) so that we end up taking a fault that the hardware really ++ * *has* to handle gracefully without affecting other processes. ++ */ + svm->iommu->pasid_table[svm->pasid].val = 0; ++ wmb(); ++ ++ rcu_read_lock(); ++ list_for_each_entry_rcu(sdev, &svm->devs, list) { ++ intel_flush_pasid_dev(svm, sdev, svm->pasid); ++ intel_flush_svm_range_dev(svm, sdev, 0, -1, 0, !svm->mm); ++ } ++ rcu_read_unlock(); + +- /* There's no need to do any flush because we can't get here if there +- * are any devices left anyway. */ +- WARN_ON(!list_empty(&svm->devs)); + } + + static const struct mmu_notifier_ops intel_mmuops = { +@@ -379,7 +397,6 @@ int intel_svm_bind_mm(struct device *dev + goto out; + } + iommu->pasid_table[svm->pasid].val = (u64)__pa(mm->pgd) | 1; +- mm = NULL; + } else + iommu->pasid_table[svm->pasid].val = (u64)__pa(init_mm.pgd) | 1 | (1ULL << 11); + wmb(); +@@ -442,11 +459,11 @@ int intel_svm_unbind_mm(struct device *d + kfree_rcu(sdev, rcu); + + if (list_empty(&svm->devs)) { +- mmu_notifier_unregister(&svm->notifier, svm->mm); + + idr_remove(&svm->iommu->pasid_idr, svm->pasid); + if (svm->mm) +- mmput(svm->mm); ++ mmu_notifier_unregister(&svm->notifier, svm->mm); ++ + /* We mandate that no page faults may be outstanding + * for the PASID when intel_svm_unbind_mm() is called. + * If that is not obeyed, subtle errors will happen. +@@ -507,6 +524,10 @@ static irqreturn_t prq_event_thread(int + struct intel_svm *svm = NULL; + int head, tail, handled = 0; + ++ /* Clear PPR bit before reading head/tail registers, to ++ * ensure that we get a new interrupt if needed. */ ++ writel(DMA_PRS_PPR, iommu->reg + DMAR_PRS_REG); ++ + tail = dmar_readq(iommu->reg + DMAR_PQT_REG) & PRQ_RING_MASK; + head = dmar_readq(iommu->reg + DMAR_PQH_REG) & PRQ_RING_MASK; + while (head != tail) { +@@ -551,6 +572,9 @@ static irqreturn_t prq_event_thread(int + * any faults on kernel addresses. */ + if (!svm->mm) + goto bad_req; ++ /* If the mm is already defunct, don't handle faults. */ ++ if (!atomic_inc_not_zero(&svm->mm->mm_users)) ++ goto bad_req; + down_read(&svm->mm->mmap_sem); + vma = find_extend_vma(svm->mm, address); + if (!vma || address < vma->vm_start) +@@ -567,6 +591,7 @@ static irqreturn_t prq_event_thread(int + result = QI_RESP_SUCCESS; + invalid: + up_read(&svm->mm->mmap_sem); ++ mmput(svm->mm); + bad_req: + /* Accounting for major/minor faults? */ + rcu_read_lock(); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/io-pgtable-arm.c linux-libre-4.4.7-gnu/drivers/iommu/io-pgtable-arm.c +--- linux-libre-4.4-gnu/drivers/iommu/io-pgtable-arm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/iommu/io-pgtable-arm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -405,17 +405,18 @@ static void __arm_lpae_free_pgtable(stru + arm_lpae_iopte *start, *end; + unsigned long table_size; + +- /* Only leaf entries at the last level */ +- if (lvl == ARM_LPAE_MAX_LEVELS - 1) +- return; +- + if (lvl == ARM_LPAE_START_LVL(data)) + table_size = data->pgd_size; + else + table_size = 1UL << data->pg_shift; + + start = ptep; +- end = (void *)ptep + table_size; ++ ++ /* Only leaf entries at the last level */ ++ if (lvl == ARM_LPAE_MAX_LEVELS - 1) ++ end = ptep; ++ else ++ end = (void *)ptep + table_size; + + while (ptep != end) { + arm_lpae_iopte pte = *ptep++; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-atmel-aic-common.c linux-libre-4.4.7-gnu/drivers/irqchip/irq-atmel-aic-common.c +--- linux-libre-4.4-gnu/drivers/irqchip/irq-atmel-aic-common.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/irqchip/irq-atmel-aic-common.c 2016-04-12 12:09:26.000000000 -0400 +@@ -86,7 +86,7 @@ int aic_common_set_priority(int priority + priority > AT91_AIC_IRQ_MAX_PRIORITY) + return -EINVAL; + +- *val &= AT91_AIC_PRIOR; ++ *val &= ~AT91_AIC_PRIOR; + *val |= priority; + + return 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-gic-v3-its.c linux-libre-4.4.7-gnu/drivers/irqchip/irq-gic-v3-its.c +--- linux-libre-4.4-gnu/drivers/irqchip/irq-gic-v3-its.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/irqchip/irq-gic-v3-its.c 2016-04-12 12:09:26.000000000 -0400 +@@ -597,11 +597,6 @@ static void its_unmask_irq(struct irq_da + lpi_set_config(d, true); + } + +-static void its_eoi_irq(struct irq_data *d) +-{ +- gic_write_eoir(d->hwirq); +-} +- + static int its_set_affinity(struct irq_data *d, const struct cpumask *mask_val, + bool force) + { +@@ -638,7 +633,7 @@ static struct irq_chip its_irq_chip = { + .name = "ITS", + .irq_mask = its_mask_irq, + .irq_unmask = its_unmask_irq, +- .irq_eoi = its_eoi_irq, ++ .irq_eoi = irq_chip_eoi_parent, + .irq_set_affinity = its_set_affinity, + .irq_compose_msi_msg = its_irq_compose_msi_msg, + }; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-mxs.c linux-libre-4.4.7-gnu/drivers/irqchip/irq-mxs.c +--- linux-libre-4.4-gnu/drivers/irqchip/irq-mxs.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/irqchip/irq-mxs.c 2016-04-12 12:09:26.000000000 -0400 +@@ -241,6 +241,7 @@ static int __init asm9260_of_init(struct + writel(0, icoll_priv.intr + i); + + icoll_add_domain(np, ASM9260_NUM_IRQS); ++ set_handle_irq(icoll_handle_irq); + + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-omap-intc.c linux-libre-4.4.7-gnu/drivers/irqchip/irq-omap-intc.c +--- linux-libre-4.4-gnu/drivers/irqchip/irq-omap-intc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/irqchip/irq-omap-intc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -47,6 +47,7 @@ + #define INTC_ILR0 0x0100 + + #define ACTIVEIRQ_MASK 0x7f /* omap2/3 active interrupt bits */ ++#define SPURIOUSIRQ_MASK (0x1ffffff << 7) + #define INTCPS_NR_ILR_REGS 128 + #define INTCPS_NR_MIR_REGS 4 + +@@ -330,11 +331,35 @@ static int __init omap_init_irq(u32 base + static asmlinkage void __exception_irq_entry + omap_intc_handle_irq(struct pt_regs *regs) + { ++ extern unsigned long irq_err_count; + u32 irqnr; + + irqnr = intc_readl(INTC_SIR); ++ ++ /* ++ * A spurious IRQ can result if interrupt that triggered the ++ * sorting is no longer active during the sorting (10 INTC ++ * functional clock cycles after interrupt assertion). Or a ++ * change in interrupt mask affected the result during sorting ++ * time. There is no special handling required except ignoring ++ * the SIR register value just read and retrying. ++ * See section 6.2.5 of AM335x TRM Literature Number: SPRUH73K ++ * ++ * Many a times, a spurious interrupt situation has been fixed ++ * by adding a flush for the posted write acking the IRQ in ++ * the device driver. Typically, this is going be the device ++ * driver whose interrupt was handled just before the spurious ++ * IRQ occurred. Pay attention to those device drivers if you ++ * run into hitting the spurious IRQ condition below. ++ */ ++ if (unlikely((irqnr & SPURIOUSIRQ_MASK) == SPURIOUSIRQ_MASK)) { ++ pr_err_once("%s: spurious irq!\n", __func__); ++ irq_err_count++; ++ omap_ack_irq(NULL); ++ return; ++ } ++ + irqnr &= ACTIVEIRQ_MASK; +- WARN_ONCE(!irqnr, "Spurious IRQ ?\n"); + handle_domain_irq(domain, irqnr, regs); + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/btree.c linux-libre-4.4.7-gnu/drivers/md/bcache/btree.c +--- linux-libre-4.4-gnu/drivers/md/bcache/btree.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/bcache/btree.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1741,6 +1741,7 @@ static void bch_btree_gc(struct cache_se + do { + ret = btree_root(gc_root, c, &op, &writes, &stats); + closure_sync(&writes); ++ cond_resched(); + + if (ret && ret != -EAGAIN) + pr_warn("gc failed!"); +@@ -2162,8 +2163,10 @@ int bch_btree_insert_check_key(struct bt + rw_lock(true, b, b->level); + + if (b->key.ptr[0] != btree_ptr || +- b->seq != seq + 1) ++ b->seq != seq + 1) { ++ op->lock = b->level; + goto out; ++ } + } + + SET_KEY_PTRS(check_key, 1); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/super.c linux-libre-4.4.7-gnu/drivers/md/bcache/super.c +--- linux-libre-4.4-gnu/drivers/md/bcache/super.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/bcache/super.c 2016-04-12 12:09:26.000000000 -0400 +@@ -685,6 +685,8 @@ static void bcache_device_link(struct bc + WARN(sysfs_create_link(&d->kobj, &c->kobj, "cache") || + sysfs_create_link(&c->kobj, &d->kobj, d->name), + "Couldn't create device <-> cache set symlinks"); ++ ++ clear_bit(BCACHE_DEV_UNLINK_DONE, &d->flags); + } + + static void bcache_device_detach(struct bcache_device *d) +@@ -847,8 +849,11 @@ void bch_cached_dev_run(struct cached_de + buf[SB_LABEL_SIZE] = '\0'; + env[2] = kasprintf(GFP_KERNEL, "CACHED_LABEL=%s", buf); + +- if (atomic_xchg(&dc->running, 1)) ++ if (atomic_xchg(&dc->running, 1)) { ++ kfree(env[1]); ++ kfree(env[2]); + return; ++ } + + if (!d->c && + BDEV_STATE(&dc->sb) != BDEV_STATE_NONE) { +@@ -1010,8 +1015,12 @@ int bch_cached_dev_attach(struct cached_ + */ + atomic_set(&dc->count, 1); + +- if (bch_cached_dev_writeback_start(dc)) ++ /* Block writeback thread, but spawn it */ ++ down_write(&dc->writeback_lock); ++ if (bch_cached_dev_writeback_start(dc)) { ++ up_write(&dc->writeback_lock); + return -ENOMEM; ++ } + + if (BDEV_STATE(&dc->sb) == BDEV_STATE_DIRTY) { + bch_sectors_dirty_init(dc); +@@ -1023,6 +1032,9 @@ int bch_cached_dev_attach(struct cached_ + bch_cached_dev_run(dc); + bcache_device_link(&dc->disk, c, "bdev"); + ++ /* Allow the writeback thread to proceed */ ++ up_write(&dc->writeback_lock); ++ + pr_info("Caching %s as %s on set %pU", + bdevname(dc->bdev, buf), dc->disk.disk->disk_name, + dc->disk.c->sb.set_uuid); +@@ -1361,6 +1373,9 @@ static void cache_set_flush(struct closu + struct btree *b; + unsigned i; + ++ if (!c) ++ closure_return(cl); ++ + bch_cache_accounting_destroy(&c->accounting); + + kobject_put(&c->internal); +@@ -1823,11 +1838,12 @@ static int cache_alloc(struct cache_sb * + return 0; + } + +-static void register_cache(struct cache_sb *sb, struct page *sb_page, ++static int register_cache(struct cache_sb *sb, struct page *sb_page, + struct block_device *bdev, struct cache *ca) + { + char name[BDEVNAME_SIZE]; +- const char *err = "cannot allocate memory"; ++ const char *err = NULL; ++ int ret = 0; + + memcpy(&ca->sb, sb, sizeof(struct cache_sb)); + ca->bdev = bdev; +@@ -1842,27 +1858,35 @@ static void register_cache(struct cache_ + if (blk_queue_discard(bdev_get_queue(ca->bdev))) + ca->discard = CACHE_DISCARD(&ca->sb); + +- if (cache_alloc(sb, ca) != 0) ++ ret = cache_alloc(sb, ca); ++ if (ret != 0) + goto err; + +- err = "error creating kobject"; +- if (kobject_add(&ca->kobj, &part_to_dev(bdev->bd_part)->kobj, "bcache")) +- goto err; ++ if (kobject_add(&ca->kobj, &part_to_dev(bdev->bd_part)->kobj, "bcache")) { ++ err = "error calling kobject_add"; ++ ret = -ENOMEM; ++ goto out; ++ } + + mutex_lock(&bch_register_lock); + err = register_cache_set(ca); + mutex_unlock(&bch_register_lock); + +- if (err) +- goto err; ++ if (err) { ++ ret = -ENODEV; ++ goto out; ++ } + + pr_info("registered cache device %s", bdevname(bdev, name)); ++ + out: + kobject_put(&ca->kobj); +- return; ++ + err: +- pr_notice("error opening %s: %s", bdevname(bdev, name), err); +- goto out; ++ if (err) ++ pr_notice("error opening %s: %s", bdevname(bdev, name), err); ++ ++ return ret; + } + + /* Global interfaces/init */ +@@ -1933,6 +1957,8 @@ static ssize_t register_bcache(struct ko + else + err = "device busy"; + mutex_unlock(&bch_register_lock); ++ if (attr == &ksysfs_register_quiet) ++ goto out; + } + goto err; + } +@@ -1958,7 +1984,8 @@ static ssize_t register_bcache(struct ko + if (!ca) + goto err_close; + +- register_cache(sb, sb_page, bdev, ca); ++ if (register_cache(sb, sb_page, bdev, ca) != 0) ++ goto err_close; + } + out: + if (sb_page) +@@ -1971,8 +1998,7 @@ out: + err_close: + blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL); + err: +- if (attr != &ksysfs_register_quiet) +- pr_info("error opening %s: %s", path, err); ++ pr_info("error opening %s: %s", path, err); + ret = -EINVAL; + goto out; + } +@@ -2066,8 +2092,10 @@ static int __init bcache_init(void) + closure_debug_init(); + + bcache_major = register_blkdev(0, "bcache"); +- if (bcache_major < 0) ++ if (bcache_major < 0) { ++ unregister_reboot_notifier(&reboot); + return bcache_major; ++ } + + if (!(bcache_wq = create_workqueue("bcache")) || + !(bcache_kobj = kobject_create_and_add("bcache", fs_kobj)) || +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/writeback.c linux-libre-4.4.7-gnu/drivers/md/bcache/writeback.c +--- linux-libre-4.4-gnu/drivers/md/bcache/writeback.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/bcache/writeback.c 2016-04-12 12:09:26.000000000 -0400 +@@ -323,6 +323,10 @@ void bcache_dev_sectors_dirty_add(struct + + static bool dirty_pred(struct keybuf *buf, struct bkey *k) + { ++ struct cached_dev *dc = container_of(buf, struct cached_dev, writeback_keys); ++ ++ BUG_ON(KEY_INODE(k) != dc->disk.id); ++ + return KEY_DIRTY(k); + } + +@@ -372,11 +376,24 @@ next: + } + } + ++/* ++ * Returns true if we scanned the entire disk ++ */ + static bool refill_dirty(struct cached_dev *dc) + { + struct keybuf *buf = &dc->writeback_keys; ++ struct bkey start = KEY(dc->disk.id, 0, 0); + struct bkey end = KEY(dc->disk.id, MAX_KEY_OFFSET, 0); +- bool searched_from_start = false; ++ struct bkey start_pos; ++ ++ /* ++ * make sure keybuf pos is inside the range for this disk - at bringup ++ * we might not be attached yet so this disk's inode nr isn't ++ * initialized then ++ */ ++ if (bkey_cmp(&buf->last_scanned, &start) < 0 || ++ bkey_cmp(&buf->last_scanned, &end) > 0) ++ buf->last_scanned = start; + + if (dc->partial_stripes_expensive) { + refill_full_stripes(dc); +@@ -384,14 +401,20 @@ static bool refill_dirty(struct cached_d + return false; + } + +- if (bkey_cmp(&buf->last_scanned, &end) >= 0) { +- buf->last_scanned = KEY(dc->disk.id, 0, 0); +- searched_from_start = true; +- } +- ++ start_pos = buf->last_scanned; + bch_refill_keybuf(dc->disk.c, buf, &end, dirty_pred); + +- return bkey_cmp(&buf->last_scanned, &end) >= 0 && searched_from_start; ++ if (bkey_cmp(&buf->last_scanned, &end) < 0) ++ return false; ++ ++ /* ++ * If we get to the end start scanning again from the beginning, and ++ * only scan up to where we initially started scanning from: ++ */ ++ buf->last_scanned = start; ++ bch_refill_keybuf(dc->disk.c, buf, &start_pos, dirty_pred); ++ ++ return bkey_cmp(&buf->last_scanned, &start_pos) >= 0; + } + + static int bch_writeback_thread(void *arg) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/writeback.h linux-libre-4.4.7-gnu/drivers/md/bcache/writeback.h +--- linux-libre-4.4-gnu/drivers/md/bcache/writeback.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/bcache/writeback.h 2016-04-12 12:09:26.000000000 -0400 +@@ -63,7 +63,8 @@ static inline bool should_writeback(stru + + static inline void bch_writeback_queue(struct cached_dev *dc) + { +- wake_up_process(dc->writeback_thread); ++ if (!IS_ERR_OR_NULL(dc->writeback_thread)) ++ wake_up_process(dc->writeback_thread); + } + + static inline void bch_writeback_add(struct cached_dev *dc) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm.c linux-libre-4.4.7-gnu/drivers/md/dm.c +--- linux-libre-4.4-gnu/drivers/md/dm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/dm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1109,12 +1109,8 @@ static void rq_completed(struct mapped_d + * back into ->request_fn() could deadlock attempting to grab the + * queue lock again. + */ +- if (run_queue) { +- if (md->queue->mq_ops) +- blk_mq_run_hw_queues(md->queue, true); +- else +- blk_run_queue_async(md->queue); +- } ++ if (!md->queue->mq_ops && run_queue) ++ blk_run_queue_async(md->queue); + + /* + * dm_put() must be at the end of this function. See the comment above +@@ -1191,6 +1187,8 @@ static void dm_unprep_request(struct req + + if (clone) + free_rq_clone(clone); ++ else if (!tio->md->queue->mq_ops) ++ free_rq_tio(tio); + } + + /* +@@ -1212,9 +1210,9 @@ static void dm_requeue_original_request( + { + int rw = rq_data_dir(rq); + ++ rq_end_stats(md, rq); + dm_unprep_request(rq); + +- rq_end_stats(md, rq); + if (!rq->q->mq_ops) + old_requeue_request(rq); + else { +@@ -1334,7 +1332,10 @@ static void dm_complete_request(struct r + struct dm_rq_target_io *tio = tio_from_request(rq); + + tio->error = error; +- blk_complete_request(rq); ++ if (!rq->q->mq_ops) ++ blk_complete_request(rq); ++ else ++ blk_mq_complete_request(rq, error); + } + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-cache-metadata.c linux-libre-4.4.7-gnu/drivers/md/dm-cache-metadata.c +--- linux-libre-4.4-gnu/drivers/md/dm-cache-metadata.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/dm-cache-metadata.c 2016-04-12 12:09:26.000000000 -0400 +@@ -867,19 +867,40 @@ static int blocks_are_unmapped_or_clean( + return 0; + } + +-#define WRITE_LOCK(cmd) \ +- if (cmd->fail_io || dm_bm_is_read_only(cmd->bm)) \ ++#define WRITE_LOCK(cmd) \ ++ down_write(&cmd->root_lock); \ ++ if (cmd->fail_io || dm_bm_is_read_only(cmd->bm)) { \ ++ up_write(&cmd->root_lock); \ + return -EINVAL; \ +- down_write(&cmd->root_lock) ++ } + + #define WRITE_LOCK_VOID(cmd) \ +- if (cmd->fail_io || dm_bm_is_read_only(cmd->bm)) \ ++ down_write(&cmd->root_lock); \ ++ if (cmd->fail_io || dm_bm_is_read_only(cmd->bm)) { \ ++ up_write(&cmd->root_lock); \ + return; \ +- down_write(&cmd->root_lock) ++ } + + #define WRITE_UNLOCK(cmd) \ + up_write(&cmd->root_lock) + ++#define READ_LOCK(cmd) \ ++ down_read(&cmd->root_lock); \ ++ if (cmd->fail_io || dm_bm_is_read_only(cmd->bm)) { \ ++ up_read(&cmd->root_lock); \ ++ return -EINVAL; \ ++ } ++ ++#define READ_LOCK_VOID(cmd) \ ++ down_read(&cmd->root_lock); \ ++ if (cmd->fail_io || dm_bm_is_read_only(cmd->bm)) { \ ++ up_read(&cmd->root_lock); \ ++ return; \ ++ } ++ ++#define READ_UNLOCK(cmd) \ ++ up_read(&cmd->root_lock) ++ + int dm_cache_resize(struct dm_cache_metadata *cmd, dm_cblock_t new_cache_size) + { + int r; +@@ -1015,22 +1036,20 @@ int dm_cache_load_discards(struct dm_cac + { + int r; + +- down_read(&cmd->root_lock); ++ READ_LOCK(cmd); + r = __load_discards(cmd, fn, context); +- up_read(&cmd->root_lock); ++ READ_UNLOCK(cmd); + + return r; + } + +-dm_cblock_t dm_cache_size(struct dm_cache_metadata *cmd) ++int dm_cache_size(struct dm_cache_metadata *cmd, dm_cblock_t *result) + { +- dm_cblock_t r; +- +- down_read(&cmd->root_lock); +- r = cmd->cache_blocks; +- up_read(&cmd->root_lock); ++ READ_LOCK(cmd); ++ *result = cmd->cache_blocks; ++ READ_UNLOCK(cmd); + +- return r; ++ return 0; + } + + static int __remove(struct dm_cache_metadata *cmd, dm_cblock_t cblock) +@@ -1188,9 +1207,9 @@ int dm_cache_load_mappings(struct dm_cac + { + int r; + +- down_read(&cmd->root_lock); ++ READ_LOCK(cmd); + r = __load_mappings(cmd, policy, fn, context); +- up_read(&cmd->root_lock); ++ READ_UNLOCK(cmd); + + return r; + } +@@ -1215,18 +1234,18 @@ static int __dump_mappings(struct dm_cac + + void dm_cache_dump(struct dm_cache_metadata *cmd) + { +- down_read(&cmd->root_lock); ++ READ_LOCK_VOID(cmd); + __dump_mappings(cmd); +- up_read(&cmd->root_lock); ++ READ_UNLOCK(cmd); + } + + int dm_cache_changed_this_transaction(struct dm_cache_metadata *cmd) + { + int r; + +- down_read(&cmd->root_lock); ++ READ_LOCK(cmd); + r = cmd->changed; +- up_read(&cmd->root_lock); ++ READ_UNLOCK(cmd); + + return r; + } +@@ -1276,9 +1295,9 @@ int dm_cache_set_dirty(struct dm_cache_m + void dm_cache_metadata_get_stats(struct dm_cache_metadata *cmd, + struct dm_cache_statistics *stats) + { +- down_read(&cmd->root_lock); ++ READ_LOCK_VOID(cmd); + *stats = cmd->stats; +- up_read(&cmd->root_lock); ++ READ_UNLOCK(cmd); + } + + void dm_cache_metadata_set_stats(struct dm_cache_metadata *cmd, +@@ -1312,9 +1331,9 @@ int dm_cache_get_free_metadata_block_cou + { + int r = -EINVAL; + +- down_read(&cmd->root_lock); ++ READ_LOCK(cmd); + r = dm_sm_get_nr_free(cmd->metadata_sm, result); +- up_read(&cmd->root_lock); ++ READ_UNLOCK(cmd); + + return r; + } +@@ -1324,9 +1343,9 @@ int dm_cache_get_metadata_dev_size(struc + { + int r = -EINVAL; + +- down_read(&cmd->root_lock); ++ READ_LOCK(cmd); + r = dm_sm_get_nr_blocks(cmd->metadata_sm, result); +- up_read(&cmd->root_lock); ++ READ_UNLOCK(cmd); + + return r; + } +@@ -1417,7 +1436,13 @@ int dm_cache_write_hints(struct dm_cache + + int dm_cache_metadata_all_clean(struct dm_cache_metadata *cmd, bool *result) + { +- return blocks_are_unmapped_or_clean(cmd, 0, cmd->cache_blocks, result); ++ int r; ++ ++ READ_LOCK(cmd); ++ r = blocks_are_unmapped_or_clean(cmd, 0, cmd->cache_blocks, result); ++ READ_UNLOCK(cmd); ++ ++ return r; + } + + void dm_cache_metadata_set_read_only(struct dm_cache_metadata *cmd) +@@ -1440,10 +1465,7 @@ int dm_cache_metadata_set_needs_check(st + struct dm_block *sblock; + struct cache_disk_superblock *disk_super; + +- /* +- * We ignore fail_io for this function. +- */ +- down_write(&cmd->root_lock); ++ WRITE_LOCK(cmd); + set_bit(NEEDS_CHECK, &cmd->flags); + + r = superblock_lock(cmd, &sblock); +@@ -1458,19 +1480,17 @@ int dm_cache_metadata_set_needs_check(st + dm_bm_unlock(sblock); + + out: +- up_write(&cmd->root_lock); ++ WRITE_UNLOCK(cmd); + return r; + } + +-bool dm_cache_metadata_needs_check(struct dm_cache_metadata *cmd) ++int dm_cache_metadata_needs_check(struct dm_cache_metadata *cmd, bool *result) + { +- bool needs_check; +- +- down_read(&cmd->root_lock); +- needs_check = !!test_bit(NEEDS_CHECK, &cmd->flags); +- up_read(&cmd->root_lock); ++ READ_LOCK(cmd); ++ *result = !!test_bit(NEEDS_CHECK, &cmd->flags); ++ READ_UNLOCK(cmd); + +- return needs_check; ++ return 0; + } + + int dm_cache_metadata_abort(struct dm_cache_metadata *cmd) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-cache-metadata.h linux-libre-4.4.7-gnu/drivers/md/dm-cache-metadata.h +--- linux-libre-4.4-gnu/drivers/md/dm-cache-metadata.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/dm-cache-metadata.h 2016-04-12 12:09:26.000000000 -0400 +@@ -66,7 +66,7 @@ void dm_cache_metadata_close(struct dm_c + * origin blocks to map to. + */ + int dm_cache_resize(struct dm_cache_metadata *cmd, dm_cblock_t new_cache_size); +-dm_cblock_t dm_cache_size(struct dm_cache_metadata *cmd); ++int dm_cache_size(struct dm_cache_metadata *cmd, dm_cblock_t *result); + + int dm_cache_discard_bitset_resize(struct dm_cache_metadata *cmd, + sector_t discard_block_size, +@@ -137,7 +137,7 @@ int dm_cache_write_hints(struct dm_cache + */ + int dm_cache_metadata_all_clean(struct dm_cache_metadata *cmd, bool *result); + +-bool dm_cache_metadata_needs_check(struct dm_cache_metadata *cmd); ++int dm_cache_metadata_needs_check(struct dm_cache_metadata *cmd, bool *result); + int dm_cache_metadata_set_needs_check(struct dm_cache_metadata *cmd); + void dm_cache_metadata_set_read_only(struct dm_cache_metadata *cmd); + void dm_cache_metadata_set_read_write(struct dm_cache_metadata *cmd); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-cache-target.c linux-libre-4.4.7-gnu/drivers/md/dm-cache-target.c +--- linux-libre-4.4-gnu/drivers/md/dm-cache-target.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/dm-cache-target.c 2016-04-12 12:09:26.000000000 -0400 +@@ -987,9 +987,14 @@ static void notify_mode_switch(struct ca + + static void set_cache_mode(struct cache *cache, enum cache_metadata_mode new_mode) + { +- bool needs_check = dm_cache_metadata_needs_check(cache->cmd); ++ bool needs_check; + enum cache_metadata_mode old_mode = get_cache_mode(cache); + ++ if (dm_cache_metadata_needs_check(cache->cmd, &needs_check)) { ++ DMERR("unable to read needs_check flag, setting failure mode"); ++ new_mode = CM_FAIL; ++ } ++ + if (new_mode == CM_WRITE && needs_check) { + DMERR("%s: unable to switch cache to write mode until repaired.", + cache_device_name(cache)); +@@ -3513,6 +3518,7 @@ static void cache_status(struct dm_targe + char buf[BDEVNAME_SIZE]; + struct cache *cache = ti->private; + dm_cblock_t residency; ++ bool needs_check; + + switch (type) { + case STATUSTYPE_INFO: +@@ -3586,7 +3592,9 @@ static void cache_status(struct dm_targe + else + DMEMIT("rw "); + +- if (dm_cache_metadata_needs_check(cache->cmd)) ++ r = dm_cache_metadata_needs_check(cache->cmd, &needs_check); ++ ++ if (r || needs_check) + DMEMIT("needs_check "); + else + DMEMIT("- "); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-exception-store.h linux-libre-4.4.7-gnu/drivers/md/dm-exception-store.h +--- linux-libre-4.4-gnu/drivers/md/dm-exception-store.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/dm-exception-store.h 2016-04-12 12:09:26.000000000 -0400 +@@ -69,7 +69,7 @@ struct dm_exception_store_type { + * Update the metadata with this exception. + */ + void (*commit_exception) (struct dm_exception_store *store, +- struct dm_exception *e, ++ struct dm_exception *e, int valid, + void (*callback) (void *, int success), + void *callback_context); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-snap.c linux-libre-4.4.7-gnu/drivers/md/dm-snap.c +--- linux-libre-4.4-gnu/drivers/md/dm-snap.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/dm-snap.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1106,6 +1106,7 @@ static int snapshot_ctr(struct dm_target + int i; + int r = -EINVAL; + char *origin_path, *cow_path; ++ dev_t origin_dev, cow_dev; + unsigned args_used, num_flush_bios = 1; + fmode_t origin_mode = FMODE_READ; + +@@ -1136,11 +1137,19 @@ static int snapshot_ctr(struct dm_target + ti->error = "Cannot get origin device"; + goto bad_origin; + } ++ origin_dev = s->origin->bdev->bd_dev; + + cow_path = argv[0]; + argv++; + argc--; + ++ cow_dev = dm_get_dev_t(cow_path); ++ if (cow_dev && cow_dev == origin_dev) { ++ ti->error = "COW device cannot be the same as origin device"; ++ r = -EINVAL; ++ goto bad_cow; ++ } ++ + r = dm_get_device(ti, cow_path, dm_table_get_mode(ti->table), &s->cow); + if (r) { + ti->error = "Cannot get COW device"; +@@ -1438,8 +1447,9 @@ static void __invalidate_snapshot(struct + dm_table_event(s->ti->table); + } + +-static void pending_complete(struct dm_snap_pending_exception *pe, int success) ++static void pending_complete(void *context, int success) + { ++ struct dm_snap_pending_exception *pe = context; + struct dm_exception *e; + struct dm_snapshot *s = pe->snap; + struct bio *origin_bios = NULL; +@@ -1509,24 +1519,13 @@ out: + free_pending_exception(pe); + } + +-static void commit_callback(void *context, int success) +-{ +- struct dm_snap_pending_exception *pe = context; +- +- pending_complete(pe, success); +-} +- + static void complete_exception(struct dm_snap_pending_exception *pe) + { + struct dm_snapshot *s = pe->snap; + +- if (unlikely(pe->copy_error)) +- pending_complete(pe, 0); +- +- else +- /* Update the metadata if we are persistent */ +- s->store->type->commit_exception(s->store, &pe->e, +- commit_callback, pe); ++ /* Update the metadata if we are persistent */ ++ s->store->type->commit_exception(s->store, &pe->e, !pe->copy_error, ++ pending_complete, pe); + } + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-snap-persistent.c linux-libre-4.4.7-gnu/drivers/md/dm-snap-persistent.c +--- linux-libre-4.4-gnu/drivers/md/dm-snap-persistent.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/dm-snap-persistent.c 2016-04-12 12:09:26.000000000 -0400 +@@ -695,7 +695,7 @@ static int persistent_prepare_exception( + } + + static void persistent_commit_exception(struct dm_exception_store *store, +- struct dm_exception *e, ++ struct dm_exception *e, int valid, + void (*callback) (void *, int success), + void *callback_context) + { +@@ -704,6 +704,9 @@ static void persistent_commit_exception( + struct core_exception ce; + struct commit_callback *cb; + ++ if (!valid) ++ ps->valid = 0; ++ + ce.old_chunk = e->old_chunk; + ce.new_chunk = e->new_chunk; + write_exception(ps, ps->current_committed++, &ce); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-snap-transient.c linux-libre-4.4.7-gnu/drivers/md/dm-snap-transient.c +--- linux-libre-4.4-gnu/drivers/md/dm-snap-transient.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/dm-snap-transient.c 2016-04-12 12:09:26.000000000 -0400 +@@ -52,12 +52,12 @@ static int transient_prepare_exception(s + } + + static void transient_commit_exception(struct dm_exception_store *store, +- struct dm_exception *e, ++ struct dm_exception *e, int valid, + void (*callback) (void *, int success), + void *callback_context) + { + /* Just succeed */ +- callback(callback_context, 1); ++ callback(callback_context, valid); + } + + static void transient_usage(struct dm_exception_store *store, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-table.c linux-libre-4.4.7-gnu/drivers/md/dm-table.c +--- linux-libre-4.4-gnu/drivers/md/dm-table.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/dm-table.c 2016-04-12 12:09:26.000000000 -0400 +@@ -365,6 +365,26 @@ static int upgrade_mode(struct dm_dev_in + } + + /* ++ * Convert the path to a device ++ */ ++dev_t dm_get_dev_t(const char *path) ++{ ++ dev_t uninitialized_var(dev); ++ struct block_device *bdev; ++ ++ bdev = lookup_bdev(path); ++ if (IS_ERR(bdev)) ++ dev = name_to_dev_t(path); ++ else { ++ dev = bdev->bd_dev; ++ bdput(bdev); ++ } ++ ++ return dev; ++} ++EXPORT_SYMBOL_GPL(dm_get_dev_t); ++ ++/* + * Add a device to the list, or just increment the usage count if + * it's already present. + */ +@@ -372,23 +392,15 @@ int dm_get_device(struct dm_target *ti, + struct dm_dev **result) + { + int r; +- dev_t uninitialized_var(dev); ++ dev_t dev; + struct dm_dev_internal *dd; + struct dm_table *t = ti->table; +- struct block_device *bdev; + + BUG_ON(!t); + +- /* convert the path to a device */ +- bdev = lookup_bdev(path); +- if (IS_ERR(bdev)) { +- dev = name_to_dev_t(path); +- if (!dev) +- return -ENODEV; +- } else { +- dev = bdev->bd_dev; +- bdput(bdev); +- } ++ dev = dm_get_dev_t(path); ++ if (!dev) ++ return -ENODEV; + + dd = find_device(&t->devices, dev); + if (!dd) { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-thin.c linux-libre-4.4.7-gnu/drivers/md/dm-thin.c +--- linux-libre-4.4-gnu/drivers/md/dm-thin.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/dm-thin.c 2016-04-12 12:09:26.000000000 -0400 +@@ -3453,8 +3453,8 @@ static void pool_postsuspend(struct dm_t + struct pool_c *pt = ti->private; + struct pool *pool = pt->pool; + +- cancel_delayed_work(&pool->waker); +- cancel_delayed_work(&pool->no_space_timeout); ++ cancel_delayed_work_sync(&pool->waker); ++ cancel_delayed_work_sync(&pool->no_space_timeout); + flush_workqueue(pool->wq); + (void) commit(pool); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-thin-metadata.c linux-libre-4.4.7-gnu/drivers/md/dm-thin-metadata.c +--- linux-libre-4.4-gnu/drivers/md/dm-thin-metadata.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/dm-thin-metadata.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1943,5 +1943,8 @@ bool dm_pool_metadata_needs_check(struct + + void dm_pool_issue_prefetches(struct dm_pool_metadata *pmd) + { +- dm_tm_issue_prefetches(pmd->tm); ++ down_read(&pmd->root_lock); ++ if (!pmd->fail_io) ++ dm_tm_issue_prefetches(pmd->tm); ++ up_read(&pmd->root_lock); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/md.c linux-libre-4.4.7-gnu/drivers/md/md.c +--- linux-libre-4.4-gnu/drivers/md/md.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/md.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2017,28 +2017,32 @@ int md_integrity_register(struct mddev * + } + EXPORT_SYMBOL(md_integrity_register); + +-/* Disable data integrity if non-capable/non-matching disk is being added */ +-void md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev) ++/* ++ * Attempt to add an rdev, but only if it is consistent with the current ++ * integrity profile ++ */ ++int md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev) + { + struct blk_integrity *bi_rdev; + struct blk_integrity *bi_mddev; ++ char name[BDEVNAME_SIZE]; + + if (!mddev->gendisk) +- return; ++ return 0; + + bi_rdev = bdev_get_integrity(rdev->bdev); + bi_mddev = blk_get_integrity(mddev->gendisk); + + if (!bi_mddev) /* nothing to do */ +- return; +- if (rdev->raid_disk < 0) /* skip spares */ +- return; +- if (bi_rdev && blk_integrity_compare(mddev->gendisk, +- rdev->bdev->bd_disk) >= 0) +- return; +- WARN_ON_ONCE(!mddev->suspended); +- printk(KERN_NOTICE "disabling data integrity on %s\n", mdname(mddev)); +- blk_integrity_unregister(mddev->gendisk); ++ return 0; ++ ++ if (blk_integrity_compare(mddev->gendisk, rdev->bdev->bd_disk) != 0) { ++ printk(KERN_NOTICE "%s: incompatible integrity profile for %s\n", ++ mdname(mddev), bdevname(rdev->bdev, name)); ++ return -ENXIO; ++ } ++ ++ return 0; + } + EXPORT_SYMBOL(md_integrity_add_rdev); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/md.h linux-libre-4.4.7-gnu/drivers/md/md.h +--- linux-libre-4.4-gnu/drivers/md/md.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/md.h 2016-04-12 12:09:26.000000000 -0400 +@@ -657,7 +657,7 @@ extern void md_wait_for_blocked_rdev(str + extern void md_set_array_sectors(struct mddev *mddev, sector_t array_sectors); + extern int md_check_no_bitmap(struct mddev *mddev); + extern int md_integrity_register(struct mddev *mddev); +-extern void md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev); ++extern int md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev); + extern int strict_strtoul_scaled(const char *cp, unsigned long *res, int scale); + + extern void mddev_init(struct mddev *mddev); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/multipath.c linux-libre-4.4.7-gnu/drivers/md/multipath.c +--- linux-libre-4.4-gnu/drivers/md/multipath.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/multipath.c 2016-04-12 12:09:26.000000000 -0400 +@@ -129,7 +129,9 @@ static void multipath_make_request(struc + } + multipath = conf->multipaths + mp_bh->path; + +- mp_bh->bio = *bio; ++ bio_init(&mp_bh->bio); ++ __bio_clone_fast(&mp_bh->bio, bio); ++ + mp_bh->bio.bi_iter.bi_sector += multipath->rdev->data_offset; + mp_bh->bio.bi_bdev = multipath->rdev->bdev; + mp_bh->bio.bi_rw |= REQ_FAILFAST_TRANSPORT; +@@ -257,6 +259,9 @@ static int multipath_add_disk(struct mdd + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); + ++ err = md_integrity_add_rdev(rdev, mddev); ++ if (err) ++ break; + spin_lock_irq(&conf->device_lock); + mddev->degraded--; + rdev->raid_disk = path; +@@ -264,9 +269,6 @@ static int multipath_add_disk(struct mdd + spin_unlock_irq(&conf->device_lock); + rcu_assign_pointer(p->rdev, rdev); + err = 0; +- mddev_suspend(mddev); +- md_integrity_add_rdev(rdev, mddev); +- mddev_resume(mddev); + break; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/persistent-data/dm-space-map-metadata.c linux-libre-4.4.7-gnu/drivers/md/persistent-data/dm-space-map-metadata.c +--- linux-libre-4.4-gnu/drivers/md/persistent-data/dm-space-map-metadata.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/persistent-data/dm-space-map-metadata.c 2016-04-12 12:09:26.000000000 -0400 +@@ -152,12 +152,9 @@ static int brb_peek(struct bop_ring_buff + + static int brb_pop(struct bop_ring_buffer *brb) + { +- struct block_op *bop; +- + if (brb_empty(brb)) + return -ENODATA; + +- bop = brb->bops + brb->begin; + brb->begin = brb_next(brb, brb->begin); + + return 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/raid10.c linux-libre-4.4.7-gnu/drivers/md/raid10.c +--- linux-libre-4.4-gnu/drivers/md/raid10.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/raid10.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1698,6 +1698,9 @@ static int raid10_add_disk(struct mddev + if (rdev->saved_raid_disk < 0 && !_enough(conf, 1, -1)) + return -EINVAL; + ++ if (md_integrity_add_rdev(rdev, mddev)) ++ return -ENXIO; ++ + if (rdev->raid_disk >= 0) + first = last = rdev->raid_disk; + +@@ -1739,9 +1742,6 @@ static int raid10_add_disk(struct mddev + rcu_assign_pointer(p->rdev, rdev); + break; + } +- mddev_suspend(mddev); +- md_integrity_add_rdev(rdev, mddev); +- mddev_resume(mddev); + if (mddev->queue && blk_queue_discard(bdev_get_queue(rdev->bdev))) + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mddev->queue); + +@@ -2664,6 +2664,7 @@ static void handle_write_completed(struc + if (fail) { + spin_lock_irq(&conf->device_lock); + list_add(&r10_bio->retry_list, &conf->bio_end_io_list); ++ conf->nr_queued++; + spin_unlock_irq(&conf->device_lock); + md_wakeup_thread(conf->mddev->thread); + } else { +@@ -2691,8 +2692,10 @@ static void raid10d(struct md_thread *th + LIST_HEAD(tmp); + spin_lock_irqsave(&conf->device_lock, flags); + if (!test_bit(MD_CHANGE_PENDING, &mddev->flags)) { +- list_add(&tmp, &conf->bio_end_io_list); +- list_del_init(&conf->bio_end_io_list); ++ while (!list_empty(&conf->bio_end_io_list)) { ++ list_move(conf->bio_end_io_list.prev, &tmp); ++ conf->nr_queued--; ++ } + } + spin_unlock_irqrestore(&conf->device_lock, flags); + while (!list_empty(&tmp)) { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/raid1.c linux-libre-4.4.7-gnu/drivers/md/raid1.c +--- linux-libre-4.4-gnu/drivers/md/raid1.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/raid1.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1589,6 +1589,9 @@ static int raid1_add_disk(struct mddev * + if (mddev->recovery_disabled == conf->recovery_disabled) + return -EBUSY; + ++ if (md_integrity_add_rdev(rdev, mddev)) ++ return -ENXIO; ++ + if (rdev->raid_disk >= 0) + first = last = rdev->raid_disk; + +@@ -1632,9 +1635,6 @@ static int raid1_add_disk(struct mddev * + break; + } + } +- mddev_suspend(mddev); +- md_integrity_add_rdev(rdev, mddev); +- mddev_resume(mddev); + if (mddev->queue && blk_queue_discard(bdev_get_queue(rdev->bdev))) + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mddev->queue); + print_conf(conf); +@@ -2274,6 +2274,7 @@ static void handle_write_finished(struct + if (fail) { + spin_lock_irq(&conf->device_lock); + list_add(&r1_bio->retry_list, &conf->bio_end_io_list); ++ conf->nr_queued++; + spin_unlock_irq(&conf->device_lock); + md_wakeup_thread(conf->mddev->thread); + } else { +@@ -2391,8 +2392,10 @@ static void raid1d(struct md_thread *thr + LIST_HEAD(tmp); + spin_lock_irqsave(&conf->device_lock, flags); + if (!test_bit(MD_CHANGE_PENDING, &mddev->flags)) { +- list_add(&tmp, &conf->bio_end_io_list); +- list_del_init(&conf->bio_end_io_list); ++ while (!list_empty(&conf->bio_end_io_list)) { ++ list_move(conf->bio_end_io_list.prev, &tmp); ++ conf->nr_queued--; ++ } + } + spin_unlock_irqrestore(&conf->device_lock, flags); + while (!list_empty(&tmp)) { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/raid5.c linux-libre-4.4.7-gnu/drivers/md/raid5.c +--- linux-libre-4.4-gnu/drivers/md/raid5.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/raid5.c 2016-04-12 12:09:26.000000000 -0400 +@@ -340,8 +340,7 @@ static void release_inactive_stripe_list + int hash) + { + int size; +- unsigned long do_wakeup = 0; +- int i = 0; ++ bool do_wakeup = false; + unsigned long flags; + + if (hash == NR_STRIPE_HASH_LOCKS) { +@@ -362,19 +361,15 @@ static void release_inactive_stripe_list + !list_empty(list)) + atomic_dec(&conf->empty_inactive_list_nr); + list_splice_tail_init(list, conf->inactive_list + hash); +- do_wakeup |= 1 << hash; ++ do_wakeup = true; + spin_unlock_irqrestore(conf->hash_locks + hash, flags); + } + size--; + hash--; + } + +- for (i = 0; i < NR_STRIPE_HASH_LOCKS; i++) { +- if (do_wakeup & (1 << i)) +- wake_up(&conf->wait_for_stripe[i]); +- } +- + if (do_wakeup) { ++ wake_up(&conf->wait_for_stripe); + if (atomic_read(&conf->active_stripes) == 0) + wake_up(&conf->wait_for_quiescent); + if (conf->retry_read_aligned) +@@ -687,15 +682,14 @@ raid5_get_active_stripe(struct r5conf *c + if (!sh) { + set_bit(R5_INACTIVE_BLOCKED, + &conf->cache_state); +- wait_event_exclusive_cmd( +- conf->wait_for_stripe[hash], ++ wait_event_lock_irq( ++ conf->wait_for_stripe, + !list_empty(conf->inactive_list + hash) && + (atomic_read(&conf->active_stripes) + < (conf->max_nr_stripes * 3 / 4) + || !test_bit(R5_INACTIVE_BLOCKED, + &conf->cache_state)), +- spin_unlock_irq(conf->hash_locks + hash), +- spin_lock_irq(conf->hash_locks + hash)); ++ *(conf->hash_locks + hash)); + clear_bit(R5_INACTIVE_BLOCKED, + &conf->cache_state); + } else { +@@ -720,9 +714,6 @@ raid5_get_active_stripe(struct r5conf *c + } + } while (sh == NULL); + +- if (!list_empty(conf->inactive_list + hash)) +- wake_up(&conf->wait_for_stripe[hash]); +- + spin_unlock_irq(conf->hash_locks + hash); + return sh; + } +@@ -2091,6 +2082,14 @@ static int resize_chunks(struct r5conf * + unsigned long cpu; + int err = 0; + ++ /* ++ * Never shrink. And mddev_suspend() could deadlock if this is called ++ * from raid5d. In that case, scribble_disks and scribble_sectors ++ * should equal to new_disks and new_sectors ++ */ ++ if (conf->scribble_disks >= new_disks && ++ conf->scribble_sectors >= new_sectors) ++ return 0; + mddev_suspend(conf->mddev); + get_online_cpus(); + for_each_present_cpu(cpu) { +@@ -2112,6 +2111,10 @@ static int resize_chunks(struct r5conf * + } + put_online_cpus(); + mddev_resume(conf->mddev); ++ if (!err) { ++ conf->scribble_disks = new_disks; ++ conf->scribble_sectors = new_sectors; ++ } + return err; + } + +@@ -2192,7 +2195,7 @@ static int resize_stripes(struct r5conf + cnt = 0; + list_for_each_entry(nsh, &newstripes, lru) { + lock_device_hash_lock(conf, hash); +- wait_event_exclusive_cmd(conf->wait_for_stripe[hash], ++ wait_event_cmd(conf->wait_for_stripe, + !list_empty(conf->inactive_list + hash), + unlock_device_hash_lock(conf, hash), + lock_device_hash_lock(conf, hash)); +@@ -4238,7 +4241,6 @@ static void break_stripe_batch_list(stru + WARN_ON_ONCE(sh->state & ((1 << STRIPE_ACTIVE) | + (1 << STRIPE_SYNCING) | + (1 << STRIPE_REPLACED) | +- (1 << STRIPE_PREREAD_ACTIVE) | + (1 << STRIPE_DELAYED) | + (1 << STRIPE_BIT_DELAY) | + (1 << STRIPE_FULL_WRITE) | +@@ -4253,6 +4255,7 @@ static void break_stripe_batch_list(stru + (1 << STRIPE_REPLACED))); + + set_mask_bits(&sh->state, ~(STRIPE_EXPAND_SYNC_FLAGS | ++ (1 << STRIPE_PREREAD_ACTIVE) | + (1 << STRIPE_DEGRADED)), + head_sh->state & (1 << STRIPE_INSYNC)); + +@@ -6414,6 +6417,12 @@ static int raid5_alloc_percpu(struct r5c + } + put_online_cpus(); + ++ if (!err) { ++ conf->scribble_disks = max(conf->raid_disks, ++ conf->previous_raid_disks); ++ conf->scribble_sectors = max(conf->chunk_sectors, ++ conf->prev_chunk_sectors); ++ } + return err; + } + +@@ -6504,9 +6513,7 @@ static struct r5conf *setup_conf(struct + seqcount_init(&conf->gen_lock); + mutex_init(&conf->cache_size_mutex); + init_waitqueue_head(&conf->wait_for_quiescent); +- for (i = 0; i < NR_STRIPE_HASH_LOCKS; i++) { +- init_waitqueue_head(&conf->wait_for_stripe[i]); +- } ++ init_waitqueue_head(&conf->wait_for_stripe); + init_waitqueue_head(&conf->wait_for_overlap); + INIT_LIST_HEAD(&conf->handle_list); + INIT_LIST_HEAD(&conf->hold_list); +@@ -7015,8 +7022,8 @@ static int run(struct mddev *mddev) + } + + if (discard_supported && +- mddev->queue->limits.max_discard_sectors >= stripe && +- mddev->queue->limits.discard_granularity >= stripe) ++ mddev->queue->limits.max_discard_sectors >= (stripe >> 9) && ++ mddev->queue->limits.discard_granularity >= stripe) + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, + mddev->queue); + else +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/raid5.h linux-libre-4.4.7-gnu/drivers/md/raid5.h +--- linux-libre-4.4-gnu/drivers/md/raid5.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/md/raid5.h 2016-04-12 12:09:26.000000000 -0400 +@@ -510,6 +510,8 @@ struct r5conf { + * conversions + */ + } __percpu *percpu; ++ int scribble_disks; ++ int scribble_sectors; + #ifdef CONFIG_HOTPLUG_CPU + struct notifier_block cpu_notify; + #endif +@@ -522,7 +524,7 @@ struct r5conf { + atomic_t empty_inactive_list_nr; + struct llist_head released_stripes; + wait_queue_head_t wait_for_quiescent; +- wait_queue_head_t wait_for_stripe[NR_STRIPE_HASH_LOCKS]; ++ wait_queue_head_t wait_for_stripe; + wait_queue_head_t wait_for_overlap; + unsigned long cache_state; + #define R5_INACTIVE_BLOCKED 1 /* release of inactive stripes blocked, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/dvb-core/dvb_frontend.c linux-libre-4.4.7-gnu/drivers/media/dvb-core/dvb_frontend.c +--- linux-libre-4.4-gnu/drivers/media/dvb-core/dvb_frontend.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/dvb-core/dvb_frontend.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2313,9 +2313,9 @@ static int dvb_frontend_ioctl_legacy(str + dev_dbg(fe->dvb->device, "%s: current delivery system on cache: %d, V3 type: %d\n", + __func__, c->delivery_system, fe->ops.info.type); + +- /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't +- * do it, it is done for it. */ +- info->caps |= FE_CAN_INVERSION_AUTO; ++ /* Set CAN_INVERSION_AUTO bit on in other than oneshot mode */ ++ if (!(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) ++ info->caps |= FE_CAN_INVERSION_AUTO; + err = 0; + break; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/dvb-frontends/tda1004x.c linux-libre-4.4.7-gnu/drivers/media/dvb-frontends/tda1004x.c +--- linux-libre-4.4-gnu/drivers/media/dvb-frontends/tda1004x.c 2016-01-10 21:00:52.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/dvb-frontends/tda1004x.c 2016-04-12 21:18:17.000000000 -0400 +@@ -895,9 +895,18 @@ static int tda1004x_get_fe(struct dvb_fr + { + struct dtv_frontend_properties *fe_params = &fe->dtv_property_cache; + struct tda1004x_state* state = fe->demodulator_priv; ++ int status; + + dprintk("%s\n", __func__); + ++ status = tda1004x_read_byte(state, TDA1004X_STATUS_CD); ++ if (status == -1) ++ return -EIO; ++ ++ /* Only update the properties cache if device is locked */ ++ if (!(status & 8)) ++ return 0; ++ + // inversion status + fe_params->inversion = INVERSION_OFF; + if (tda1004x_read_byte(state, TDA1004X_CONFC1) & 0x20) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/i2c/adv7511.c linux-libre-4.4.7-gnu/drivers/media/i2c/adv7511.c +--- linux-libre-4.4-gnu/drivers/media/i2c/adv7511.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/i2c/adv7511.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1161,12 +1161,23 @@ static void adv7511_dbg_dump_edid(int lv + } + } + ++static void adv7511_notify_no_edid(struct v4l2_subdev *sd) ++{ ++ struct adv7511_state *state = get_adv7511_state(sd); ++ struct adv7511_edid_detect ed; ++ ++ /* We failed to read the EDID, so send an event for this. */ ++ ed.present = false; ++ ed.segment = adv7511_rd(sd, 0xc4); ++ v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed); ++ v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, 0x0); ++} ++ + static void adv7511_edid_handler(struct work_struct *work) + { + struct delayed_work *dwork = to_delayed_work(work); + struct adv7511_state *state = container_of(dwork, struct adv7511_state, edid_handler); + struct v4l2_subdev *sd = &state->sd; +- struct adv7511_edid_detect ed; + + v4l2_dbg(1, debug, sd, "%s:\n", __func__); + +@@ -1191,9 +1202,7 @@ static void adv7511_edid_handler(struct + } + + /* We failed to read the EDID, so send an event for this. */ +- ed.present = false; +- ed.segment = adv7511_rd(sd, 0xc4); +- v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed); ++ adv7511_notify_no_edid(sd); + v4l2_dbg(1, debug, sd, "%s: no edid found\n", __func__); + } + +@@ -1264,7 +1273,6 @@ static void adv7511_check_monitor_presen + /* update read only ctrls */ + v4l2_ctrl_s_ctrl(state->hotplug_ctrl, adv7511_have_hotplug(sd) ? 0x1 : 0x0); + v4l2_ctrl_s_ctrl(state->rx_sense_ctrl, adv7511_have_rx_sense(sd) ? 0x1 : 0x0); +- v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, state->edid.segments ? 0x1 : 0x0); + + if ((status & MASK_ADV7511_HPD_DETECT) && ((status & MASK_ADV7511_MSEN_DETECT) || state->edid.segments)) { + v4l2_dbg(1, debug, sd, "%s: hotplug and (rx-sense or edid)\n", __func__); +@@ -1294,6 +1302,7 @@ static void adv7511_check_monitor_presen + } + adv7511_s_power(sd, false); + memset(&state->edid, 0, sizeof(struct adv7511_state_edid)); ++ adv7511_notify_no_edid(sd); + } + } + +@@ -1370,6 +1379,7 @@ static bool adv7511_check_edid_status(st + } + /* one more segment read ok */ + state->edid.segments = segment + 1; ++ v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, 0x1); + if (((state->edid.data[0x7e] >> 1) + 1) > state->edid.segments) { + /* Request next EDID segment */ + v4l2_dbg(1, debug, sd, "%s: request segment %d\n", __func__, state->edid.segments); +@@ -1389,7 +1399,6 @@ static bool adv7511_check_edid_status(st + ed.present = true; + ed.segment = 0; + state->edid_detect_counter++; +- v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, state->edid.segments ? 0x1 : 0x0); + v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed); + return ed.present; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/i2c/adv7604.c linux-libre-4.4.7-gnu/drivers/media/i2c/adv7604.c +--- linux-libre-4.4-gnu/drivers/media/i2c/adv7604.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/i2c/adv7604.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1960,10 +1960,9 @@ static int adv76xx_isr(struct v4l2_subde + } + + /* tx 5v detect */ +- tx_5v = io_read(sd, 0x70) & info->cable_det_mask; ++ tx_5v = irq_reg_0x70 & info->cable_det_mask; + if (tx_5v) { + v4l2_dbg(1, debug, sd, "%s: tx_5v: 0x%x\n", __func__, tx_5v); +- io_write(sd, 0x71, tx_5v); + adv76xx_s_detect_tx_5v_ctrl(sd); + if (handled) + *handled = true; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/i2c/ir-kbd-i2c.c linux-libre-4.4.7-gnu/drivers/media/i2c/ir-kbd-i2c.c +--- linux-libre-4.4-gnu/drivers/media/i2c/ir-kbd-i2c.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/i2c/ir-kbd-i2c.c 2016-04-12 12:09:26.000000000 -0400 +@@ -478,7 +478,6 @@ static const struct i2c_device_id ir_kbd + { "ir_rx_z8f0811_hdpvr", 0 }, + { } + }; +-MODULE_DEVICE_TABLE(i2c, ir_kbd_id); + + static struct i2c_driver ir_kbd_driver = { + .driver = { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/bt8xx/bttv-driver.c linux-libre-4.4.7-gnu/drivers/media/pci/bt8xx/bttv-driver.c +--- linux-libre-4.4-gnu/drivers/media/pci/bt8xx/bttv-driver.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/pci/bt8xx/bttv-driver.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2334,6 +2334,19 @@ static int bttv_g_fmt_vid_overlay(struct + return 0; + } + ++static void bttv_get_width_mask_vid_cap(const struct bttv_format *fmt, ++ unsigned int *width_mask, ++ unsigned int *width_bias) ++{ ++ if (fmt->flags & FORMAT_FLAGS_PLANAR) { ++ *width_mask = ~15; /* width must be a multiple of 16 pixels */ ++ *width_bias = 8; /* nearest */ ++ } else { ++ *width_mask = ~3; /* width must be a multiple of 4 pixels */ ++ *width_bias = 2; /* nearest */ ++ } ++} ++ + static int bttv_try_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) + { +@@ -2343,6 +2356,7 @@ static int bttv_try_fmt_vid_cap(struct f + enum v4l2_field field; + __s32 width, height; + __s32 height2; ++ unsigned int width_mask, width_bias; + int rc; + + fmt = format_by_fourcc(f->fmt.pix.pixelformat); +@@ -2375,9 +2389,9 @@ static int bttv_try_fmt_vid_cap(struct f + width = f->fmt.pix.width; + height = f->fmt.pix.height; + ++ bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias); + rc = limit_scaled_size_lock(fh, &width, &height, field, +- /* width_mask: 4 pixels */ ~3, +- /* width_bias: nearest */ 2, ++ width_mask, width_bias, + /* adjust_size */ 1, + /* adjust_crop */ 0); + if (0 != rc) +@@ -2410,6 +2424,7 @@ static int bttv_s_fmt_vid_cap(struct fil + struct bttv_fh *fh = priv; + struct bttv *btv = fh->btv; + __s32 width, height; ++ unsigned int width_mask, width_bias; + enum v4l2_field field; + + retval = bttv_switch_type(fh, f->type); +@@ -2424,9 +2439,10 @@ static int bttv_s_fmt_vid_cap(struct fil + height = f->fmt.pix.height; + field = f->fmt.pix.field; + ++ fmt = format_by_fourcc(f->fmt.pix.pixelformat); ++ bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias); + retval = limit_scaled_size_lock(fh, &width, &height, f->fmt.pix.field, +- /* width_mask: 4 pixels */ ~3, +- /* width_bias: nearest */ 2, ++ width_mask, width_bias, + /* adjust_size */ 1, + /* adjust_crop */ 1); + if (0 != retval) +@@ -2434,8 +2450,6 @@ static int bttv_s_fmt_vid_cap(struct fil + + f->fmt.pix.field = field; + +- fmt = format_by_fourcc(f->fmt.pix.pixelformat); +- + /* update our state informations */ + fh->fmt = fmt; + fh->cap.field = f->fmt.pix.field; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/saa7134/saa7134-alsa.c linux-libre-4.4.7-gnu/drivers/media/pci/saa7134/saa7134-alsa.c +--- linux-libre-4.4-gnu/drivers/media/pci/saa7134/saa7134-alsa.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/pci/saa7134/saa7134-alsa.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1211,6 +1211,8 @@ static int alsa_device_init(struct saa71 + + static int alsa_device_exit(struct saa7134_dev *dev) + { ++ if (!snd_saa7134_cards[dev->nr]) ++ return 1; + + snd_card_free(snd_saa7134_cards[dev->nr]); + snd_saa7134_cards[dev->nr] = NULL; +@@ -1260,7 +1262,8 @@ static void saa7134_alsa_exit(void) + int idx; + + for (idx = 0; idx < SNDRV_CARDS; idx++) { +- snd_card_free(snd_saa7134_cards[idx]); ++ if (snd_saa7134_cards[idx]) ++ snd_card_free(snd_saa7134_cards[idx]); + } + + saa7134_dmasound_init = NULL; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/saa7134/saa7134-video.c linux-libre-4.4.7-gnu/drivers/media/pci/saa7134/saa7134-video.c +--- linux-libre-4.4-gnu/drivers/media/pci/saa7134/saa7134-video.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/pci/saa7134/saa7134-video.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1219,10 +1219,13 @@ static int saa7134_g_fmt_vid_cap(struct + f->fmt.pix.height = dev->height; + f->fmt.pix.field = dev->field; + f->fmt.pix.pixelformat = dev->fmt->fourcc; +- f->fmt.pix.bytesperline = +- (f->fmt.pix.width * dev->fmt->depth) >> 3; ++ if (dev->fmt->planar) ++ f->fmt.pix.bytesperline = f->fmt.pix.width; ++ else ++ f->fmt.pix.bytesperline = ++ (f->fmt.pix.width * dev->fmt->depth) / 8; + f->fmt.pix.sizeimage = +- f->fmt.pix.height * f->fmt.pix.bytesperline; ++ (f->fmt.pix.height * f->fmt.pix.width * dev->fmt->depth) / 8; + f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + return 0; + } +@@ -1298,10 +1301,13 @@ static int saa7134_try_fmt_vid_cap(struc + if (f->fmt.pix.height > maxh) + f->fmt.pix.height = maxh; + f->fmt.pix.width &= ~0x03; +- f->fmt.pix.bytesperline = +- (f->fmt.pix.width * fmt->depth) >> 3; ++ if (fmt->planar) ++ f->fmt.pix.bytesperline = f->fmt.pix.width; ++ else ++ f->fmt.pix.bytesperline = ++ (f->fmt.pix.width * fmt->depth) / 8; + f->fmt.pix.sizeimage = +- f->fmt.pix.height * f->fmt.pix.bytesperline; ++ (f->fmt.pix.height * f->fmt.pix.width * fmt->depth) / 8; + f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + + return 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/platform/coda/coda-bit.c linux-libre-4.4.7-gnu/drivers/media/platform/coda/coda-bit.c +--- linux-libre-4.4-gnu/drivers/media/platform/coda/coda-bit.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/platform/coda/coda-bit.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1342,7 +1342,7 @@ static void coda_finish_encode(struct co + + /* Calculate bytesused field */ + if (dst_buf->sequence == 0) { +- vb2_set_plane_payload(&dst_buf->vb2_buf, 0, ++ vb2_set_plane_payload(&dst_buf->vb2_buf, 0, wr_ptr - start_ptr + + ctx->vpu_header_size[0] + + ctx->vpu_header_size[1] + + ctx->vpu_header_size[2]); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/rc/sunxi-cir.c linux-libre-4.4.7-gnu/drivers/media/rc/sunxi-cir.c +--- linux-libre-4.4-gnu/drivers/media/rc/sunxi-cir.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/rc/sunxi-cir.c 2016-04-12 12:09:26.000000000 -0400 +@@ -153,6 +153,8 @@ static int sunxi_ir_probe(struct platfor + if (!ir) + return -ENOMEM; + ++ spin_lock_init(&ir->ir_lock); ++ + if (of_device_is_compatible(dn, "allwinner,sun5i-a13-ir")) + ir->fifo_size = 64; + else +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/tuners/si2157.c linux-libre-4.4.7-gnu/drivers/media/tuners/si2157.c +--- linux-libre-4.4-gnu/drivers/media/tuners/si2157.c 2016-01-10 20:58:24.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/tuners/si2157.c 2016-04-12 21:15:52.000000000 -0400 +@@ -168,6 +168,7 @@ static int si2157_init(struct dvb_fronte + len = fw->data[fw->size - remaining]; + if (len > SI2157_ARGLEN) { + dev_err(&client->dev, "Bad firmware length\n"); ++ ret = -EINVAL; + goto err_release_firmware; + } + memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/gspca/ov534.c linux-libre-4.4.7-gnu/drivers/media/usb/gspca/ov534.c +--- linux-libre-4.4-gnu/drivers/media/usb/gspca/ov534.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/usb/gspca/ov534.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1491,8 +1491,13 @@ static void sd_set_streamparm(struct gsp + struct v4l2_fract *tpf = &cp->timeperframe; + struct sd *sd = (struct sd *) gspca_dev; + +- /* Set requested framerate */ +- sd->frame_rate = tpf->denominator / tpf->numerator; ++ if (tpf->numerator == 0 || tpf->denominator == 0) ++ /* Set default framerate */ ++ sd->frame_rate = 30; ++ else ++ /* Set requested framerate */ ++ sd->frame_rate = tpf->denominator / tpf->numerator; ++ + if (gspca_dev->streaming) + set_frame_rate(gspca_dev); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/gspca/topro.c linux-libre-4.4.7-gnu/drivers/media/usb/gspca/topro.c +--- linux-libre-4.4-gnu/drivers/media/usb/gspca/topro.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/usb/gspca/topro.c 2016-04-12 12:09:26.000000000 -0400 +@@ -4802,7 +4802,11 @@ static void sd_set_streamparm(struct gsp + struct v4l2_fract *tpf = &cp->timeperframe; + int fr, i; + +- sd->framerate = tpf->denominator / tpf->numerator; ++ if (tpf->numerator == 0 || tpf->denominator == 0) ++ sd->framerate = 30; ++ else ++ sd->framerate = tpf->denominator / tpf->numerator; ++ + if (gspca_dev->streaming) + setframerate(gspca_dev, v4l2_ctrl_g_ctrl(gspca_dev->exposure)); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/pwc/pwc-if.c linux-libre-4.4.7-gnu/drivers/media/usb/pwc/pwc-if.c +--- linux-libre-4.4-gnu/drivers/media/usb/pwc/pwc-if.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/usb/pwc/pwc-if.c 2016-04-12 12:09:26.000000000 -0400 +@@ -91,6 +91,7 @@ static const struct usb_device_id pwc_de + { USB_DEVICE(0x0471, 0x0312) }, + { USB_DEVICE(0x0471, 0x0313) }, /* the 'new' 720K */ + { USB_DEVICE(0x0471, 0x0329) }, /* Philips SPC 900NC PC Camera */ ++ { USB_DEVICE(0x0471, 0x032C) }, /* Philips SPC 880NC PC Camera */ + { USB_DEVICE(0x069A, 0x0001) }, /* Askey */ + { USB_DEVICE(0x046D, 0x08B0) }, /* Logitech QuickCam Pro 3000 */ + { USB_DEVICE(0x046D, 0x08B1) }, /* Logitech QuickCam Notebook Pro */ +@@ -811,6 +812,11 @@ static int usb_pwc_probe(struct usb_inte + name = "Philips SPC 900NC webcam"; + type_id = 740; + break; ++ case 0x032C: ++ PWC_INFO("Philips SPC 880NC USB webcam detected.\n"); ++ name = "Philips SPC 880NC webcam"; ++ type_id = 740; ++ break; + default: + return -ENODEV; + break; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/v4l2-core/v4l2-compat-ioctl32.c linux-libre-4.4.7-gnu/drivers/media/v4l2-core/v4l2-compat-ioctl32.c +--- linux-libre-4.4-gnu/drivers/media/v4l2-core/v4l2-compat-ioctl32.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/v4l2-core/v4l2-compat-ioctl32.c 2016-04-12 12:09:26.000000000 -0400 +@@ -415,7 +415,8 @@ static int get_v4l2_buffer32(struct v4l2 + get_user(kp->index, &up->index) || + get_user(kp->type, &up->type) || + get_user(kp->flags, &up->flags) || +- get_user(kp->memory, &up->memory)) ++ get_user(kp->memory, &up->memory) || ++ get_user(kp->length, &up->length)) + return -EFAULT; + + if (V4L2_TYPE_IS_OUTPUT(kp->type)) +@@ -427,9 +428,6 @@ static int get_v4l2_buffer32(struct v4l2 + return -EFAULT; + + if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) { +- if (get_user(kp->length, &up->length)) +- return -EFAULT; +- + num_planes = kp->length; + if (num_planes == 0) { + kp->m.planes = NULL; +@@ -462,16 +460,14 @@ static int get_v4l2_buffer32(struct v4l2 + } else { + switch (kp->memory) { + case V4L2_MEMORY_MMAP: +- if (get_user(kp->length, &up->length) || +- get_user(kp->m.offset, &up->m.offset)) ++ if (get_user(kp->m.offset, &up->m.offset)) + return -EFAULT; + break; + case V4L2_MEMORY_USERPTR: + { + compat_long_t tmp; + +- if (get_user(kp->length, &up->length) || +- get_user(tmp, &up->m.userptr)) ++ if (get_user(tmp, &up->m.userptr)) + return -EFAULT; + + kp->m.userptr = (unsigned long)compat_ptr(tmp); +@@ -513,7 +509,8 @@ static int put_v4l2_buffer32(struct v4l2 + copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode)) || + put_user(kp->sequence, &up->sequence) || + put_user(kp->reserved2, &up->reserved2) || +- put_user(kp->reserved, &up->reserved)) ++ put_user(kp->reserved, &up->reserved) || ++ put_user(kp->length, &up->length)) + return -EFAULT; + + if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) { +@@ -536,13 +533,11 @@ static int put_v4l2_buffer32(struct v4l2 + } else { + switch (kp->memory) { + case V4L2_MEMORY_MMAP: +- if (put_user(kp->length, &up->length) || +- put_user(kp->m.offset, &up->m.offset)) ++ if (put_user(kp->m.offset, &up->m.offset)) + return -EFAULT; + break; + case V4L2_MEMORY_USERPTR: +- if (put_user(kp->length, &up->length) || +- put_user(kp->m.userptr, &up->m.userptr)) ++ if (put_user(kp->m.userptr, &up->m.userptr)) + return -EFAULT; + break; + case V4L2_MEMORY_OVERLAY: +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/v4l2-core/videobuf2-v4l2.c linux-libre-4.4.7-gnu/drivers/media/v4l2-core/videobuf2-v4l2.c +--- linux-libre-4.4-gnu/drivers/media/v4l2-core/videobuf2-v4l2.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/media/v4l2-core/videobuf2-v4l2.c 2016-04-12 12:09:26.000000000 -0400 +@@ -822,10 +822,10 @@ unsigned int vb2_poll(struct vb2_queue * + return res | POLLERR; + + /* +- * For output streams you can write as long as there are fewer buffers +- * queued than there are buffers available. ++ * For output streams you can call write() as long as there are fewer ++ * buffers queued than there are buffers available. + */ +- if (q->is_output && q->queued_count < q->num_buffers) ++ if (q->is_output && q->fileio && q->queued_count < q->num_buffers) + return res | POLLOUT | POLLWRNORM; + + if (list_empty(&q->done_list)) { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/cxl/pci.c linux-libre-4.4.7-gnu/drivers/misc/cxl/pci.c +--- linux-libre-4.4-gnu/drivers/misc/cxl/pci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/misc/cxl/pci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -414,7 +414,7 @@ static int cxl_setup_psl_timebase(struct + delta = mftb() - psl_tb; + if (delta < 0) + delta = -delta; +- } while (cputime_to_usecs(delta) > 16); ++ } while (tb_to_ns(delta) > 16000); + + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/cxl/vphb.c linux-libre-4.4.7-gnu/drivers/misc/cxl/vphb.c +--- linux-libre-4.4-gnu/drivers/misc/cxl/vphb.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/misc/cxl/vphb.c 2016-04-12 12:09:26.000000000 -0400 +@@ -203,7 +203,7 @@ static int cxl_pcie_write_config(struct + mask <<= shift; + val <<= shift; + +- v = (in_le32(ioaddr) & ~mask) || (val & mask); ++ v = (in_le32(ioaddr) & ~mask) | (val & mask); + + out_le32(ioaddr, v); + return PCIBIOS_SUCCESSFUL; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mei/bus.c linux-libre-4.4.7-gnu/drivers/misc/mei/bus.c +--- linux-libre-4.4-gnu/drivers/misc/mei/bus.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/misc/mei/bus.c 2016-04-12 12:09:26.000000000 -0400 +@@ -53,6 +53,11 @@ ssize_t __mei_cl_send(struct mei_cl *cl, + bus = cl->dev; + + mutex_lock(&bus->device_lock); ++ if (bus->dev_state != MEI_DEV_ENABLED) { ++ rets = -ENODEV; ++ goto out; ++ } ++ + if (!mei_cl_is_connected(cl)) { + rets = -ENODEV; + goto out; +@@ -109,6 +114,10 @@ ssize_t __mei_cl_recv(struct mei_cl *cl, + bus = cl->dev; + + mutex_lock(&bus->device_lock); ++ if (bus->dev_state != MEI_DEV_ENABLED) { ++ rets = -ENODEV; ++ goto out; ++ } + + cb = mei_cl_read_cb(cl, NULL); + if (cb) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mei/main.c linux-libre-4.4.7-gnu/drivers/misc/mei/main.c +--- linux-libre-4.4-gnu/drivers/misc/mei/main.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/misc/mei/main.c 2016-04-12 12:09:26.000000000 -0400 +@@ -458,7 +458,11 @@ static int mei_ioctl_client_notify_reque + { + struct mei_cl *cl = file->private_data; + +- return mei_cl_notify_request(cl, file, request); ++ if (request != MEI_HBM_NOTIFICATION_START && ++ request != MEI_HBM_NOTIFICATION_STOP) ++ return -EINVAL; ++ ++ return mei_cl_notify_request(cl, file, (u8)request); + } + + /** +@@ -657,7 +661,9 @@ out: + * @file: pointer to file structure + * @band: band bitmap + * +- * Return: poll mask ++ * Return: negative on error, ++ * 0 if it did no changes, ++ * and positive a process was added or deleted + */ + static int mei_fasync(int fd, struct file *file, int band) + { +@@ -665,7 +671,7 @@ static int mei_fasync(int fd, struct fil + struct mei_cl *cl = file->private_data; + + if (!mei_cl_is_connected(cl)) +- return POLLERR; ++ return -ENODEV; + + return fasync_helper(fd, file, band, &cl->ev_async); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/card/block.c linux-libre-4.4.7-gnu/drivers/mmc/card/block.c +--- linux-libre-4.4-gnu/drivers/mmc/card/block.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mmc/card/block.c 2016-04-12 12:09:26.000000000 -0400 +@@ -596,6 +596,14 @@ static int mmc_blk_ioctl_cmd(struct bloc + struct mmc_card *card; + int err = 0, ioc_err = 0; + ++ /* ++ * The caller must have CAP_SYS_RAWIO, and must be calling this on the ++ * whole block device, not on a partition. This prevents overspray ++ * between sibling partitions. ++ */ ++ if ((!capable(CAP_SYS_RAWIO)) || (bdev != bdev->bd_contains)) ++ return -EPERM; ++ + idata = mmc_blk_ioctl_copy_from_user(ic_ptr); + if (IS_ERR(idata)) + return PTR_ERR(idata); +@@ -638,6 +646,14 @@ static int mmc_blk_ioctl_multi_cmd(struc + int i, err = 0, ioc_err = 0; + __u64 num_of_cmds; + ++ /* ++ * The caller must have CAP_SYS_RAWIO, and must be calling this on the ++ * whole block device, not on a partition. This prevents overspray ++ * between sibling partitions. ++ */ ++ if ((!capable(CAP_SYS_RAWIO)) || (bdev != bdev->bd_contains)) ++ return -EPERM; ++ + if (copy_from_user(&num_of_cmds, &user->num_of_cmds, + sizeof(num_of_cmds))) + return -EFAULT; +@@ -693,14 +709,6 @@ cmd_err: + static int mmc_blk_ioctl(struct block_device *bdev, fmode_t mode, + unsigned int cmd, unsigned long arg) + { +- /* +- * The caller must have CAP_SYS_RAWIO, and must be calling this on the +- * whole block device, not on a partition. This prevents overspray +- * between sibling partitions. +- */ +- if ((!capable(CAP_SYS_RAWIO)) || (bdev != bdev->bd_contains)) +- return -EPERM; +- + switch (cmd) { + case MMC_IOC_CMD: + return mmc_blk_ioctl_cmd(bdev, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/core/mmc.c linux-libre-4.4.7-gnu/drivers/mmc/core/mmc.c +--- linux-libre-4.4-gnu/drivers/mmc/core/mmc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mmc/core/mmc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1076,8 +1076,7 @@ static int mmc_select_hs400(struct mmc_c + mmc_set_clock(host, max_dtr); + + /* Switch card to HS mode */ +- val = EXT_CSD_TIMING_HS | +- card->drive_strength << EXT_CSD_DRV_STR_SHIFT; ++ val = EXT_CSD_TIMING_HS; + err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, + EXT_CSD_HS_TIMING, val, + card->ext_csd.generic_cmd6_time, +@@ -1160,8 +1159,7 @@ int mmc_hs400_to_hs200(struct mmc_card * + mmc_set_clock(host, max_dtr); + + /* Switch HS400 to HS DDR */ +- val = EXT_CSD_TIMING_HS | +- card->drive_strength << EXT_CSD_DRV_STR_SHIFT; ++ val = EXT_CSD_TIMING_HS; + err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, + val, card->ext_csd.generic_cmd6_time, + true, send_status, true); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/core/sd.c linux-libre-4.4.7-gnu/drivers/mmc/core/sd.c +--- linux-libre-4.4-gnu/drivers/mmc/core/sd.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mmc/core/sd.c 2016-04-12 12:09:26.000000000 -0400 +@@ -626,9 +626,9 @@ static int mmc_sd_init_uhs_card(struct m + * SDR104 mode SD-cards. Note that tuning is mandatory for SDR104. + */ + if (!mmc_host_is_spi(card->host) && +- (card->sd_bus_speed == UHS_SDR50_BUS_SPEED || +- card->sd_bus_speed == UHS_DDR50_BUS_SPEED || +- card->sd_bus_speed == UHS_SDR104_BUS_SPEED)) { ++ (card->host->ios.timing == MMC_TIMING_UHS_SDR50 || ++ card->host->ios.timing == MMC_TIMING_UHS_DDR50 || ++ card->host->ios.timing == MMC_TIMING_UHS_SDR104)) { + err = mmc_execute_tuning(card); + + /* +@@ -638,7 +638,7 @@ static int mmc_sd_init_uhs_card(struct m + * difference between v3.00 and 3.01 spec means that CMD19 + * tuning is also available for DDR50 mode. + */ +- if (err && card->sd_bus_speed == UHS_DDR50_BUS_SPEED) { ++ if (err && card->host->ios.timing == MMC_TIMING_UHS_DDR50) { + pr_warn("%s: ddr50 tuning failed\n", + mmc_hostname(card->host)); + err = 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/core/sdio.c linux-libre-4.4.7-gnu/drivers/mmc/core/sdio.c +--- linux-libre-4.4-gnu/drivers/mmc/core/sdio.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mmc/core/sdio.c 2016-04-12 12:09:26.000000000 -0400 +@@ -535,8 +535,8 @@ static int mmc_sdio_init_uhs_card(struct + * SDR104 mode SD-cards. Note that tuning is mandatory for SDR104. + */ + if (!mmc_host_is_spi(card->host) && +- ((card->sw_caps.sd3_bus_mode & SD_MODE_UHS_SDR50) || +- (card->sw_caps.sd3_bus_mode & SD_MODE_UHS_SDR104))) ++ ((card->host->ios.timing == MMC_TIMING_UHS_SDR50) || ++ (card->host->ios.timing == MMC_TIMING_UHS_SDR104))) + err = mmc_execute_tuning(card); + out: + return err; +@@ -630,7 +630,7 @@ try_again: + */ + if (!powered_resume && (rocr & ocr & R4_18V_PRESENT)) { + err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180, +- ocr); ++ ocr_card); + if (err == -EAGAIN) { + sdio_reset(host); + mmc_go_idle(host); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/mmci.c linux-libre-4.4.7-gnu/drivers/mmc/host/mmci.c +--- linux-libre-4.4-gnu/drivers/mmc/host/mmci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mmc/host/mmci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1886,7 +1886,7 @@ static struct amba_id mmci_ids[] = { + { + .id = 0x00280180, + .mask = 0x00ffffff, +- .data = &variant_u300, ++ .data = &variant_nomadik, + }, + { + .id = 0x00480180, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/mmc_spi.c linux-libre-4.4.7-gnu/drivers/mmc/host/mmc_spi.c +--- linux-libre-4.4-gnu/drivers/mmc/host/mmc_spi.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mmc/host/mmc_spi.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1436,6 +1436,12 @@ static int mmc_spi_probe(struct spi_devi + host->pdata->cd_debounce); + if (status != 0) + goto fail_add_host; ++ ++ /* The platform has a CD GPIO signal that may support ++ * interrupts, so let mmc_gpiod_request_cd_irq() decide ++ * if polling is needed or not. ++ */ ++ mmc->caps &= ~MMC_CAP_NEEDS_POLL; + mmc_gpiod_request_cd_irq(mmc); + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/pxamci.c linux-libre-4.4.7-gnu/drivers/mmc/host/pxamci.c +--- linux-libre-4.4-gnu/drivers/mmc/host/pxamci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mmc/host/pxamci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -804,7 +804,7 @@ static int pxamci_probe(struct platform_ + dev_err(&pdev->dev, "Failed requesting gpio_ro %d\n", gpio_ro); + goto out; + } else { +- mmc->caps |= host->pdata->gpio_card_ro_invert ? ++ mmc->caps2 |= host->pdata->gpio_card_ro_invert ? + 0 : MMC_CAP2_RO_ACTIVE_HIGH; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/sdhci-acpi.c linux-libre-4.4.7-gnu/drivers/mmc/host/sdhci-acpi.c +--- linux-libre-4.4-gnu/drivers/mmc/host/sdhci-acpi.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mmc/host/sdhci-acpi.c 2016-04-12 12:09:26.000000000 -0400 +@@ -146,6 +146,33 @@ static const struct sdhci_acpi_chip sdhc + .ops = &sdhci_acpi_ops_int, + }; + ++static int bxt_get_cd(struct mmc_host *mmc) ++{ ++ int gpio_cd = mmc_gpio_get_cd(mmc); ++ struct sdhci_host *host = mmc_priv(mmc); ++ unsigned long flags; ++ int ret = 0; ++ ++ if (!gpio_cd) ++ return 0; ++ ++ pm_runtime_get_sync(mmc->parent); ++ ++ spin_lock_irqsave(&host->lock, flags); ++ ++ if (host->flags & SDHCI_DEVICE_DEAD) ++ goto out; ++ ++ ret = !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT); ++out: ++ spin_unlock_irqrestore(&host->lock, flags); ++ ++ pm_runtime_mark_last_busy(mmc->parent); ++ pm_runtime_put_autosuspend(mmc->parent); ++ ++ return ret; ++} ++ + static int sdhci_acpi_emmc_probe_slot(struct platform_device *pdev, + const char *hid, const char *uid) + { +@@ -196,6 +223,9 @@ static int sdhci_acpi_sd_probe_slot(stru + + /* Platform specific code during sd probe slot goes here */ + ++ if (hid && !strcmp(hid, "80865ACA")) ++ host->mmc_host_ops.get_cd = bxt_get_cd; ++ + return 0; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/sdhci.c linux-libre-4.4.7-gnu/drivers/mmc/host/sdhci.c +--- linux-libre-4.4-gnu/drivers/mmc/host/sdhci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mmc/host/sdhci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -540,9 +540,12 @@ static int sdhci_adma_table_pre(struct s + + BUG_ON(len > 65536); + +- /* tran, valid */ +- sdhci_adma_write_desc(host, desc, addr, len, ADMA2_TRAN_VALID); +- desc += host->desc_sz; ++ if (len) { ++ /* tran, valid */ ++ sdhci_adma_write_desc(host, desc, addr, len, ++ ADMA2_TRAN_VALID); ++ desc += host->desc_sz; ++ } + + /* + * If this triggers then we have a calculation bug +@@ -663,9 +666,20 @@ static u8 sdhci_calc_timeout(struct sdhc + if (!data) + target_timeout = cmd->busy_timeout * 1000; + else { +- target_timeout = data->timeout_ns / 1000; +- if (host->clock) +- target_timeout += data->timeout_clks / host->clock; ++ target_timeout = DIV_ROUND_UP(data->timeout_ns, 1000); ++ if (host->clock && data->timeout_clks) { ++ unsigned long long val; ++ ++ /* ++ * data->timeout_clks is in units of clock cycles. ++ * host->clock is in Hz. target_timeout is in us. ++ * Hence, us = 1000000 * cycles / Hz. Round up. ++ */ ++ val = 1000000 * data->timeout_clks; ++ if (do_div(val, host->clock)) ++ target_timeout++; ++ target_timeout += val; ++ } + } + + /* +@@ -1364,7 +1378,7 @@ static void sdhci_request(struct mmc_hos + sdhci_runtime_pm_get(host); + + /* Firstly check card presence */ +- present = sdhci_do_get_cd(host); ++ present = mmc->ops->get_cd(mmc); + + spin_lock_irqsave(&host->lock, flags); + +@@ -2760,7 +2774,7 @@ static int sdhci_runtime_pm_put(struct s + + static void sdhci_runtime_pm_bus_on(struct sdhci_host *host) + { +- if (host->runtime_suspended || host->bus_on) ++ if (host->bus_on) + return; + host->bus_on = true; + pm_runtime_get_noresume(host->mmc->parent); +@@ -2768,7 +2782,7 @@ static void sdhci_runtime_pm_bus_on(stru + + static void sdhci_runtime_pm_bus_off(struct sdhci_host *host) + { +- if (host->runtime_suspended || !host->bus_on) ++ if (!host->bus_on) + return; + host->bus_on = false; + pm_runtime_put_noidle(host->mmc->parent); +@@ -2861,6 +2875,8 @@ struct sdhci_host *sdhci_alloc_host(stru + + host = mmc_priv(mmc); + host->mmc = mmc; ++ host->mmc_host_ops = sdhci_ops; ++ mmc->ops = &host->mmc_host_ops; + + return host; + } +@@ -3057,7 +3073,6 @@ int sdhci_add_host(struct sdhci_host *ho + /* + * Set host parameters. + */ +- mmc->ops = &sdhci_ops; + max_clk = host->max_clk; + + if (host->ops->get_min_clock) +@@ -3091,14 +3106,14 @@ int sdhci_add_host(struct sdhci_host *ho + if (caps[0] & SDHCI_TIMEOUT_CLK_UNIT) + host->timeout_clk *= 1000; + ++ if (override_timeout_clk) ++ host->timeout_clk = override_timeout_clk; ++ + mmc->max_busy_timeout = host->ops->get_max_timeout_count ? + host->ops->get_max_timeout_count(host) : 1 << 27; + mmc->max_busy_timeout /= host->timeout_clk; + } + +- if (override_timeout_clk) +- host->timeout_clk = override_timeout_clk; +- + mmc->caps |= MMC_CAP_SDIO_IRQ | MMC_CAP_ERASE | MMC_CAP_CMD23; + mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/sdhci.h linux-libre-4.4.7-gnu/drivers/mmc/host/sdhci.h +--- linux-libre-4.4-gnu/drivers/mmc/host/sdhci.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mmc/host/sdhci.h 2016-04-12 12:09:26.000000000 -0400 +@@ -425,6 +425,7 @@ struct sdhci_host { + + /* Internal data */ + struct mmc_host *mmc; /* MMC structure */ ++ struct mmc_host_ops mmc_host_ops; /* MMC host ops */ + u64 dma_mask; /* custom DMA mask */ + + #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/sdhci-pci-core.c linux-libre-4.4.7-gnu/drivers/mmc/host/sdhci-pci-core.c +--- linux-libre-4.4-gnu/drivers/mmc/host/sdhci-pci-core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mmc/host/sdhci-pci-core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -277,7 +277,7 @@ static int spt_select_drive_strength(str + if (sdhci_pci_spt_drive_strength > 0) + drive_strength = sdhci_pci_spt_drive_strength & 0xf; + else +- drive_strength = 1; /* 33-ohm */ ++ drive_strength = 0; /* Default 50-ohm */ + + if ((mmc_driver_type_mask(drive_strength) & card_drv) == 0) + drive_strength = 0; /* Default 50-ohm */ +@@ -330,6 +330,33 @@ static void spt_read_drive_strength(stru + sdhci_pci_spt_drive_strength = 0x10 | ((val >> 12) & 0xf); + } + ++static int bxt_get_cd(struct mmc_host *mmc) ++{ ++ int gpio_cd = mmc_gpio_get_cd(mmc); ++ struct sdhci_host *host = mmc_priv(mmc); ++ unsigned long flags; ++ int ret = 0; ++ ++ if (!gpio_cd) ++ return 0; ++ ++ pm_runtime_get_sync(mmc->parent); ++ ++ spin_lock_irqsave(&host->lock, flags); ++ ++ if (host->flags & SDHCI_DEVICE_DEAD) ++ goto out; ++ ++ ret = !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT); ++out: ++ spin_unlock_irqrestore(&host->lock, flags); ++ ++ pm_runtime_mark_last_busy(mmc->parent); ++ pm_runtime_put_autosuspend(mmc->parent); ++ ++ return ret; ++} ++ + static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot) + { + slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE | +@@ -362,6 +389,10 @@ static int byt_sd_probe_slot(struct sdhc + slot->cd_con_id = NULL; + slot->cd_idx = 0; + slot->cd_override_level = true; ++ if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXT_SD || ++ slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_APL_SD) ++ slot->host->mmc_host_ops.get_cd = bxt_get_cd; ++ + return 0; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/sh_mmcif.c linux-libre-4.4.7-gnu/drivers/mmc/host/sh_mmcif.c +--- linux-libre-4.4-gnu/drivers/mmc/host/sh_mmcif.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mmc/host/sh_mmcif.c 2016-04-12 12:09:26.000000000 -0400 +@@ -397,38 +397,26 @@ static void sh_mmcif_start_dma_tx(struct + } + + static struct dma_chan * +-sh_mmcif_request_dma_one(struct sh_mmcif_host *host, +- struct sh_mmcif_plat_data *pdata, +- enum dma_transfer_direction direction) ++sh_mmcif_request_dma_pdata(struct sh_mmcif_host *host, uintptr_t slave_id) + { +- struct dma_slave_config cfg = { 0, }; +- struct dma_chan *chan; +- void *slave_data = NULL; +- struct resource *res; +- struct device *dev = sh_mmcif_host_to_dev(host); + dma_cap_mask_t mask; +- int ret; + + dma_cap_zero(mask); + dma_cap_set(DMA_SLAVE, mask); ++ if (slave_id <= 0) ++ return NULL; + +- if (pdata) +- slave_data = direction == DMA_MEM_TO_DEV ? +- (void *)pdata->slave_id_tx : +- (void *)pdata->slave_id_rx; +- +- chan = dma_request_slave_channel_compat(mask, shdma_chan_filter, +- slave_data, dev, +- direction == DMA_MEM_TO_DEV ? "tx" : "rx"); +- +- dev_dbg(dev, "%s: %s: got channel %p\n", __func__, +- direction == DMA_MEM_TO_DEV ? "TX" : "RX", chan); ++ return dma_request_channel(mask, shdma_chan_filter, (void *)slave_id); ++} + +- if (!chan) +- return NULL; ++static int sh_mmcif_dma_slave_config(struct sh_mmcif_host *host, ++ struct dma_chan *chan, ++ enum dma_transfer_direction direction) ++{ ++ struct resource *res; ++ struct dma_slave_config cfg = { 0, }; + + res = platform_get_resource(host->pd, IORESOURCE_MEM, 0); +- + cfg.direction = direction; + + if (direction == DMA_DEV_TO_MEM) { +@@ -439,38 +427,42 @@ sh_mmcif_request_dma_one(struct sh_mmcif + cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + } + +- ret = dmaengine_slave_config(chan, &cfg); +- if (ret < 0) { +- dma_release_channel(chan); +- return NULL; +- } +- +- return chan; ++ return dmaengine_slave_config(chan, &cfg); + } + +-static void sh_mmcif_request_dma(struct sh_mmcif_host *host, +- struct sh_mmcif_plat_data *pdata) ++static void sh_mmcif_request_dma(struct sh_mmcif_host *host) + { + struct device *dev = sh_mmcif_host_to_dev(host); + host->dma_active = false; + +- if (pdata) { +- if (pdata->slave_id_tx <= 0 || pdata->slave_id_rx <= 0) +- return; +- } else if (!dev->of_node) { +- return; ++ /* We can only either use DMA for both Tx and Rx or not use it at all */ ++ if (IS_ENABLED(CONFIG_SUPERH) && dev->platform_data) { ++ struct sh_mmcif_plat_data *pdata = dev->platform_data; ++ ++ host->chan_tx = sh_mmcif_request_dma_pdata(host, ++ pdata->slave_id_tx); ++ host->chan_rx = sh_mmcif_request_dma_pdata(host, ++ pdata->slave_id_rx); ++ } else { ++ host->chan_tx = dma_request_slave_channel(dev, "tx"); ++ host->chan_rx = dma_request_slave_channel(dev, "rx"); + } ++ dev_dbg(dev, "%s: got channel TX %p RX %p\n", __func__, host->chan_tx, ++ host->chan_rx); + +- /* We can only either use DMA for both Tx and Rx or not use it at all */ +- host->chan_tx = sh_mmcif_request_dma_one(host, pdata, DMA_MEM_TO_DEV); +- if (!host->chan_tx) +- return; ++ if (!host->chan_tx || !host->chan_rx || ++ sh_mmcif_dma_slave_config(host, host->chan_tx, DMA_MEM_TO_DEV) || ++ sh_mmcif_dma_slave_config(host, host->chan_rx, DMA_DEV_TO_MEM)) ++ goto error; + +- host->chan_rx = sh_mmcif_request_dma_one(host, pdata, DMA_DEV_TO_MEM); +- if (!host->chan_rx) { ++ return; ++ ++error: ++ if (host->chan_tx) + dma_release_channel(host->chan_tx); +- host->chan_tx = NULL; +- } ++ if (host->chan_rx) ++ dma_release_channel(host->chan_rx); ++ host->chan_tx = host->chan_rx = NULL; + } + + static void sh_mmcif_release_dma(struct sh_mmcif_host *host) +@@ -1102,7 +1094,7 @@ static void sh_mmcif_set_ios(struct mmc_ + if (ios->power_mode == MMC_POWER_UP) { + if (!host->card_present) { + /* See if we also get DMA */ +- sh_mmcif_request_dma(host, dev->platform_data); ++ sh_mmcif_request_dma(host); + host->card_present = true; + } + sh_mmcif_set_power(host, ios); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/usdhi6rol0.c linux-libre-4.4.7-gnu/drivers/mmc/host/usdhi6rol0.c +--- linux-libre-4.4-gnu/drivers/mmc/host/usdhi6rol0.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mmc/host/usdhi6rol0.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1634,7 +1634,7 @@ static void usdhi6_timeout_work(struct w + struct usdhi6_host *host = container_of(d, struct usdhi6_host, timeout_work); + struct mmc_request *mrq = host->mrq; + struct mmc_data *data = mrq ? mrq->data : NULL; +- struct scatterlist *sg = host->sg ?: data->sg; ++ struct scatterlist *sg; + + dev_warn(mmc_dev(host->mmc), + "%s timeout wait %u CMD%d: IRQ 0x%08x:0x%08x, last IRQ 0x%08x\n", +@@ -1666,6 +1666,7 @@ static void usdhi6_timeout_work(struct w + case USDHI6_WAIT_FOR_MWRITE: + case USDHI6_WAIT_FOR_READ: + case USDHI6_WAIT_FOR_WRITE: ++ sg = host->sg ?: data->sg; + dev_dbg(mmc_dev(host->mmc), + "%c: page #%u @ +0x%zx %ux%u in SG%u. Current SG %u bytes @ %u\n", + data->flags & MMC_DATA_READ ? 'R' : 'W', host->page_idx, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/nand/nand_base.c linux-libre-4.4.7-gnu/drivers/mtd/nand/nand_base.c +--- linux-libre-4.4-gnu/drivers/mtd/nand/nand_base.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mtd/nand/nand_base.c 2016-04-12 12:09:26.000000000 -0400 +@@ -3995,6 +3995,9 @@ int nand_scan_ident(struct mtd_info *mtd + return ret; + } + ++ if (!mtd->name && mtd->dev.parent) ++ mtd->name = dev_name(mtd->dev.parent); ++ + /* Set the default functions */ + nand_set_defaults(chip, chip->options & NAND_BUSWIDTH_16); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/onenand/onenand_base.c linux-libre-4.4.7-gnu/drivers/mtd/onenand/onenand_base.c +--- linux-libre-4.4-gnu/drivers/mtd/onenand/onenand_base.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mtd/onenand/onenand_base.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2599,6 +2599,7 @@ static int onenand_default_block_markbad + */ + static int onenand_block_markbad(struct mtd_info *mtd, loff_t ofs) + { ++ struct onenand_chip *this = mtd->priv; + int ret; + + ret = onenand_block_isbad(mtd, ofs); +@@ -2610,7 +2611,7 @@ static int onenand_block_markbad(struct + } + + onenand_get_device(mtd, FL_WRITING); +- ret = mtd_block_markbad(mtd, ofs); ++ ret = this->block_markbad(mtd, ofs); + onenand_release_device(mtd); + return ret; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/ubi/upd.c linux-libre-4.4.7-gnu/drivers/mtd/ubi/upd.c +--- linux-libre-4.4-gnu/drivers/mtd/ubi/upd.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/mtd/ubi/upd.c 2016-04-12 12:09:26.000000000 -0400 +@@ -193,7 +193,7 @@ int ubi_start_leb_change(struct ubi_devi + vol->changing_leb = 1; + vol->ch_lnum = req->lnum; + +- vol->upd_buf = vmalloc(req->bytes); ++ vol->upd_buf = vmalloc(ALIGN((int)req->bytes, ubi->min_io_size)); + if (!vol->upd_buf) + return -ENOMEM; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/bonding/bond_main.c linux-libre-4.4.7-gnu/drivers/net/bonding/bond_main.c +--- linux-libre-4.4-gnu/drivers/net/bonding/bond_main.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/bonding/bond_main.c 2016-04-12 12:09:26.000000000 -0400 +@@ -214,6 +214,8 @@ static void bond_uninit(struct net_devic + static struct rtnl_link_stats64 *bond_get_stats(struct net_device *bond_dev, + struct rtnl_link_stats64 *stats); + static void bond_slave_arr_handler(struct work_struct *work); ++static bool bond_time_in_interval(struct bonding *bond, unsigned long last_act, ++ int mod); + + /*---------------------------- General routines -----------------------------*/ + +@@ -1207,7 +1209,6 @@ static int bond_master_upper_dev_link(st + err = netdev_master_upper_dev_link_private(slave_dev, bond_dev, slave); + if (err) + return err; +- slave_dev->flags |= IFF_SLAVE; + rtmsg_ifinfo(RTM_NEWLINK, slave_dev, IFF_SLAVE, GFP_KERNEL); + return 0; + } +@@ -1465,6 +1466,9 @@ int bond_enslave(struct net_device *bond + } + } + ++ /* set slave flag before open to prevent IPv6 addrconf */ ++ slave_dev->flags |= IFF_SLAVE; ++ + /* open the slave since the application closed it */ + res = dev_open(slave_dev); + if (res) { +@@ -1725,6 +1729,7 @@ err_close: + dev_close(slave_dev); + + err_restore_mac: ++ slave_dev->flags &= ~IFF_SLAVE; + if (!bond->params.fail_over_mac || + BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) { + /* XXX TODO - fom follow mode needs to change master's +@@ -2415,7 +2420,7 @@ int bond_arp_rcv(const struct sk_buff *s + struct slave *slave) + { + struct arphdr *arp = (struct arphdr *)skb->data; +- struct slave *curr_active_slave; ++ struct slave *curr_active_slave, *curr_arp_slave; + unsigned char *arp_ptr; + __be32 sip, tip; + int alen, is_arp = skb->protocol == __cpu_to_be16(ETH_P_ARP); +@@ -2462,26 +2467,41 @@ int bond_arp_rcv(const struct sk_buff *s + &sip, &tip); + + curr_active_slave = rcu_dereference(bond->curr_active_slave); ++ curr_arp_slave = rcu_dereference(bond->current_arp_slave); + +- /* Backup slaves won't see the ARP reply, but do come through +- * here for each ARP probe (so we swap the sip/tip to validate +- * the probe). In a "redundant switch, common router" type of +- * configuration, the ARP probe will (hopefully) travel from +- * the active, through one switch, the router, then the other +- * switch before reaching the backup. ++ /* We 'trust' the received ARP enough to validate it if: + * +- * We 'trust' the arp requests if there is an active slave and +- * it received valid arp reply(s) after it became active. This +- * is done to avoid endless looping when we can't reach the ++ * (a) the slave receiving the ARP is active (which includes the ++ * current ARP slave, if any), or ++ * ++ * (b) the receiving slave isn't active, but there is a currently ++ * active slave and it received valid arp reply(s) after it became ++ * the currently active slave, or ++ * ++ * (c) there is an ARP slave that sent an ARP during the prior ARP ++ * interval, and we receive an ARP reply on any slave. We accept ++ * these because switch FDB update delays may deliver the ARP ++ * reply to a slave other than the sender of the ARP request. ++ * ++ * Note: for (b), backup slaves are receiving the broadcast ARP ++ * request, not a reply. This request passes from the sending ++ * slave through the L2 switch(es) to the receiving slave. Since ++ * this is checking the request, sip/tip are swapped for ++ * validation. ++ * ++ * This is done to avoid endless looping when we can't reach the + * arp_ip_target and fool ourselves with our own arp requests. + */ +- + if (bond_is_active_slave(slave)) + bond_validate_arp(bond, slave, sip, tip); + else if (curr_active_slave && + time_after(slave_last_rx(bond, curr_active_slave), + curr_active_slave->last_link_up)) + bond_validate_arp(bond, slave, tip, sip); ++ else if (curr_arp_slave && (arp->ar_op == htons(ARPOP_REPLY)) && ++ bond_time_in_interval(bond, ++ dev_trans_start(curr_arp_slave->dev), 1)) ++ bond_validate_arp(bond, slave, sip, tip); + + out_unlock: + if (arp != (struct arphdr *)skb->data) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/usb/ems_usb.c linux-libre-4.4.7-gnu/drivers/net/can/usb/ems_usb.c +--- linux-libre-4.4-gnu/drivers/net/can/usb/ems_usb.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/can/usb/ems_usb.c 2016-04-12 12:09:26.000000000 -0400 +@@ -117,6 +117,9 @@ MODULE_LICENSE("GPL v2"); + */ + #define EMS_USB_ARM7_CLOCK 8000000 + ++#define CPC_TX_QUEUE_TRIGGER_LOW 25 ++#define CPC_TX_QUEUE_TRIGGER_HIGH 35 ++ + /* + * CAN-Message representation in a CPC_MSG. Message object type is + * CPC_MSG_TYPE_CAN_FRAME or CPC_MSG_TYPE_RTR_FRAME or +@@ -278,6 +281,11 @@ static void ems_usb_read_interrupt_callb + switch (urb->status) { + case 0: + dev->free_slots = dev->intr_in_buffer[1]; ++ if(dev->free_slots > CPC_TX_QUEUE_TRIGGER_HIGH){ ++ if (netif_queue_stopped(netdev)){ ++ netif_wake_queue(netdev); ++ } ++ } + break; + + case -ECONNRESET: /* unlink */ +@@ -526,8 +534,6 @@ static void ems_usb_write_bulk_callback( + /* Release context */ + context->echo_index = MAX_TX_URBS; + +- if (netif_queue_stopped(netdev)) +- netif_wake_queue(netdev); + } + + /* +@@ -587,7 +593,7 @@ static int ems_usb_start(struct ems_usb + int err, i; + + dev->intr_in_buffer[0] = 0; +- dev->free_slots = 15; /* initial size */ ++ dev->free_slots = 50; /* initial size */ + + for (i = 0; i < MAX_RX_URBS; i++) { + struct urb *urb = NULL; +@@ -835,7 +841,7 @@ static netdev_tx_t ems_usb_start_xmit(st + + /* Slow down tx path */ + if (atomic_read(&dev->active_tx_urbs) >= MAX_TX_URBS || +- dev->free_slots < 5) { ++ dev->free_slots < CPC_TX_QUEUE_TRIGGER_LOW) { + netif_stop_queue(netdev); + } + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/usb/gs_usb.c linux-libre-4.4.7-gnu/drivers/net/can/usb/gs_usb.c +--- linux-libre-4.4-gnu/drivers/net/can/usb/gs_usb.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/can/usb/gs_usb.c 2016-04-12 12:09:26.000000000 -0400 +@@ -826,9 +826,8 @@ static struct gs_can *gs_make_candev(uns + static void gs_destroy_candev(struct gs_can *dev) + { + unregister_candev(dev->netdev); +- free_candev(dev->netdev); + usb_kill_anchored_urbs(&dev->tx_submitted); +- kfree(dev); ++ free_candev(dev->netdev); + } + + static int gs_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) +@@ -913,12 +912,15 @@ static int gs_usb_probe(struct usb_inter + for (i = 0; i < icount; i++) { + dev->canch[i] = gs_make_candev(i, intf); + if (IS_ERR_OR_NULL(dev->canch[i])) { ++ /* save error code to return later */ ++ rc = PTR_ERR(dev->canch[i]); ++ + /* on failure destroy previously created candevs */ + icount = i; +- for (i = 0; i < icount; i++) { ++ for (i = 0; i < icount; i++) + gs_destroy_candev(dev->canch[i]); +- dev->canch[i] = NULL; +- } ++ ++ usb_kill_anchored_urbs(&dev->rx_submitted); + kfree(dev); + return rc; + } +@@ -939,16 +941,12 @@ static void gs_usb_disconnect(struct usb + return; + } + +- for (i = 0; i < GS_MAX_INTF; i++) { +- struct gs_can *can = dev->canch[i]; +- +- if (!can) +- continue; +- +- gs_destroy_candev(can); +- } ++ for (i = 0; i < GS_MAX_INTF; i++) ++ if (dev->canch[i]) ++ gs_destroy_candev(dev->canch[i]); + + usb_kill_anchored_urbs(&dev->rx_submitted); ++ kfree(dev); + } + + static const struct usb_device_id gs_usb_table[] = { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/dsa/mv88e6xxx.c linux-libre-4.4.7-gnu/drivers/net/dsa/mv88e6xxx.c +--- linux-libre-4.4-gnu/drivers/net/dsa/mv88e6xxx.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/dsa/mv88e6xxx.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1519,7 +1519,7 @@ int mv88e6xxx_port_vlan_add(struct dsa_s + + /* no PVID with ranges, otherwise it's a bug */ + if (pvid) +- err = _mv88e6xxx_port_pvid_set(ds, port, vid); ++ err = _mv88e6xxx_port_pvid_set(ds, port, vlan->vid_end); + unlock: + mutex_unlock(&ps->smi_mutex); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/tg3.c linux-libre-4.4.7-gnu/drivers/net/ethernet/broadcom/tg3.c +--- linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/tg3.c 2016-01-10 21:05:42.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/ethernet/broadcom/tg3.c 2016-04-12 21:22:39.000000000 -0400 +@@ -7824,6 +7824,14 @@ static int tigon3_dma_hwbug_workaround(s + return ret; + } + ++static bool tg3_tso_bug_gso_check(struct tg3_napi *tnapi, struct sk_buff *skb) ++{ ++ /* Check if we will never have enough descriptors, ++ * as gso_segs can be more than current ring size ++ */ ++ return skb_shinfo(skb)->gso_segs < tnapi->tx_pending / 3; ++} ++ + static netdev_tx_t tg3_start_xmit(struct sk_buff *, struct net_device *); + + /* Use GSO to workaround all TSO packets that meet HW bug conditions +@@ -7927,14 +7935,19 @@ static netdev_tx_t tg3_start_xmit(struct + * vlan encapsulated. + */ + if (skb->protocol == htons(ETH_P_8021Q) || +- skb->protocol == htons(ETH_P_8021AD)) +- return tg3_tso_bug(tp, tnapi, txq, skb); ++ skb->protocol == htons(ETH_P_8021AD)) { ++ if (tg3_tso_bug_gso_check(tnapi, skb)) ++ return tg3_tso_bug(tp, tnapi, txq, skb); ++ goto drop; ++ } + + if (!skb_is_gso_v6(skb)) { + if (unlikely((ETH_HLEN + hdr_len) > 80) && +- tg3_flag(tp, TSO_BUG)) +- return tg3_tso_bug(tp, tnapi, txq, skb); +- ++ tg3_flag(tp, TSO_BUG)) { ++ if (tg3_tso_bug_gso_check(tnapi, skb)) ++ return tg3_tso_bug(tp, tnapi, txq, skb); ++ goto drop; ++ } + ip_csum = iph->check; + ip_tot_len = iph->tot_len; + iph->check = 0; +@@ -8066,7 +8079,7 @@ static netdev_tx_t tg3_start_xmit(struct + if (would_hit_hwbug) { + tg3_tx_skb_unmap(tnapi, tnapi->tx_prod, i); + +- if (mss) { ++ if (mss && tg3_tso_bug_gso_check(tnapi, skb)) { + /* If it's a TSO packet, do GSO instead of + * allocating and copying to a large linear SKB + */ +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cisco/enic/enic.h linux-libre-4.4.7-gnu/drivers/net/ethernet/cisco/enic/enic.h +--- linux-libre-4.4-gnu/drivers/net/ethernet/cisco/enic/enic.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/ethernet/cisco/enic/enic.h 2016-04-12 12:09:26.000000000 -0400 +@@ -33,7 +33,7 @@ + + #define DRV_NAME "enic" + #define DRV_DESCRIPTION "Cisco VIC Ethernet NIC Driver" +-#define DRV_VERSION "2.3.0.12" ++#define DRV_VERSION "2.3.0.20" + #define DRV_COPYRIGHT "Copyright 2008-2013 Cisco Systems, Inc" + + #define ENIC_BARS_MAX 6 +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cisco/enic/vnic_dev.c linux-libre-4.4.7-gnu/drivers/net/ethernet/cisco/enic/vnic_dev.c +--- linux-libre-4.4-gnu/drivers/net/ethernet/cisco/enic/vnic_dev.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/ethernet/cisco/enic/vnic_dev.c 2016-04-12 12:09:26.000000000 -0400 +@@ -298,7 +298,8 @@ static int _vnic_dev_cmd2(struct vnic_de + int wait) + { + struct devcmd2_controller *dc2c = vdev->devcmd2; +- struct devcmd2_result *result = dc2c->result + dc2c->next_result; ++ struct devcmd2_result *result; ++ u8 color; + unsigned int i; + int delay, err; + u32 fetch_index, new_posted; +@@ -336,13 +337,17 @@ static int _vnic_dev_cmd2(struct vnic_de + if (dc2c->cmd_ring[posted].flags & DEVCMD2_FNORESULT) + return 0; + ++ result = dc2c->result + dc2c->next_result; ++ color = dc2c->color; ++ ++ dc2c->next_result++; ++ if (dc2c->next_result == dc2c->result_size) { ++ dc2c->next_result = 0; ++ dc2c->color = dc2c->color ? 0 : 1; ++ } ++ + for (delay = 0; delay < wait; delay++) { +- if (result->color == dc2c->color) { +- dc2c->next_result++; +- if (dc2c->next_result == dc2c->result_size) { +- dc2c->next_result = 0; +- dc2c->color = dc2c->color ? 0 : 1; +- } ++ if (result->color == color) { + if (result->error) { + err = result->error; + if (err != ERR_ECMDUNKNOWN || +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/marvell/mvneta.c linux-libre-4.4.7-gnu/drivers/net/ethernet/marvell/mvneta.c +--- linux-libre-4.4-gnu/drivers/net/ethernet/marvell/mvneta.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/ethernet/marvell/mvneta.c 2016-04-12 12:09:26.000000000 -0400 +@@ -3404,7 +3404,7 @@ static int mvneta_probe(struct platform_ + dev->features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO; + dev->hw_features |= dev->features; + dev->vlan_features |= dev->features; +- dev->priv_flags |= IFF_UNICAST_FLT; ++ dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; + dev->gso_max_segs = MVNETA_MAX_TSO_SEGS; + + err = register_netdev(dev); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_clock.c linux-libre-4.4.7-gnu/drivers/net/ethernet/mellanox/mlx4/en_clock.c +--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_clock.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/ethernet/mellanox/mlx4/en_clock.c 2016-04-12 12:09:26.000000000 -0400 +@@ -236,6 +236,24 @@ static const struct ptp_clock_info mlx4_ + .enable = mlx4_en_phc_enable, + }; + ++#define MLX4_EN_WRAP_AROUND_SEC 10ULL ++ ++/* This function calculates the max shift that enables the user range ++ * of MLX4_EN_WRAP_AROUND_SEC values in the cycles register. ++ */ ++static u32 freq_to_shift(u16 freq) ++{ ++ u32 freq_khz = freq * 1000; ++ u64 max_val_cycles = freq_khz * 1000 * MLX4_EN_WRAP_AROUND_SEC; ++ u64 max_val_cycles_rounded = is_power_of_2(max_val_cycles + 1) ? ++ max_val_cycles : roundup_pow_of_two(max_val_cycles) - 1; ++ /* calculate max possible multiplier in order to fit in 64bit */ ++ u64 max_mul = div_u64(0xffffffffffffffffULL, max_val_cycles_rounded); ++ ++ /* This comes from the reverse of clocksource_khz2mult */ ++ return ilog2(div_u64(max_mul * freq_khz, 1000000)); ++} ++ + void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev) + { + struct mlx4_dev *dev = mdev->dev; +@@ -254,12 +272,7 @@ void mlx4_en_init_timestamp(struct mlx4_ + memset(&mdev->cycles, 0, sizeof(mdev->cycles)); + mdev->cycles.read = mlx4_en_read_clock; + mdev->cycles.mask = CLOCKSOURCE_MASK(48); +- /* Using shift to make calculation more accurate. Since current HW +- * clock frequency is 427 MHz, and cycles are given using a 48 bits +- * register, the biggest shift when calculating using u64, is 14 +- * (max_cycles * multiplier < 2^64) +- */ +- mdev->cycles.shift = 14; ++ mdev->cycles.shift = freq_to_shift(dev->caps.hca_core_clock); + mdev->cycles.mult = + clocksource_khz2mult(1000 * dev->caps.hca_core_clock, mdev->cycles.shift); + mdev->nominal_c_mult = mdev->cycles.mult; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c linux-libre-4.4.7-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2381,8 +2381,6 @@ out: + /* set offloads */ + priv->dev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM | + NETIF_F_TSO | NETIF_F_GSO_UDP_TUNNEL; +- priv->dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL; +- priv->dev->features |= NETIF_F_GSO_UDP_TUNNEL; + } + + static void mlx4_en_del_vxlan_offloads(struct work_struct *work) +@@ -2393,8 +2391,6 @@ static void mlx4_en_del_vxlan_offloads(s + /* unset offloads */ + priv->dev->hw_enc_features &= ~(NETIF_F_IP_CSUM | NETIF_F_RXCSUM | + NETIF_F_TSO | NETIF_F_GSO_UDP_TUNNEL); +- priv->dev->hw_features &= ~NETIF_F_GSO_UDP_TUNNEL; +- priv->dev->features &= ~NETIF_F_GSO_UDP_TUNNEL; + + ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port, + VXLAN_STEER_BY_OUTER_MAC, 0); +@@ -3020,6 +3016,11 @@ int mlx4_en_init_netdev(struct mlx4_en_d + priv->rss_hash_fn = ETH_RSS_HASH_TOP; + } + ++ if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) { ++ dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL; ++ dev->features |= NETIF_F_GSO_UDP_TUNNEL; ++ } ++ + mdev->pndev[port] = dev; + mdev->upper[port] = NULL; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_port.c linux-libre-4.4.7-gnu/drivers/net/ethernet/mellanox/mlx4/en_port.c +--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_port.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/ethernet/mellanox/mlx4/en_port.c 2016-04-12 12:09:26.000000000 -0400 +@@ -238,11 +238,11 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_e + stats->collisions = 0; + stats->rx_dropped = be32_to_cpu(mlx4_en_stats->RDROP); + stats->rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength); +- stats->rx_over_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw); ++ stats->rx_over_errors = 0; + stats->rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC); + stats->rx_frame_errors = 0; + stats->rx_fifo_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw); +- stats->rx_missed_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw); ++ stats->rx_missed_errors = 0; + stats->tx_aborted_errors = 0; + stats->tx_carrier_errors = 0; + stats->tx_fifo_errors = 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c linux-libre-4.4.7-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c 2016-04-12 12:09:26.000000000 -0400 +@@ -746,7 +746,7 @@ static int mlx5e_create_cq(struct mlx5e_ + struct mlx5_core_dev *mdev = priv->mdev; + struct mlx5_core_cq *mcq = &cq->mcq; + int eqn_not_used; +- int irqn; ++ unsigned int irqn; + int err; + u32 i; + +@@ -800,7 +800,7 @@ static int mlx5e_enable_cq(struct mlx5e_ + void *in; + void *cqc; + int inlen; +- int irqn_not_used; ++ unsigned int irqn_not_used; + int eqn; + int err; + +@@ -1504,7 +1504,7 @@ static int mlx5e_create_drop_cq(struct m + struct mlx5_core_dev *mdev = priv->mdev; + struct mlx5_core_cq *mcq = &cq->mcq; + int eqn_not_used; +- int irqn; ++ unsigned int irqn; + int err; + + err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c linux-libre-4.4.7-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c +--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c 2016-04-12 12:09:26.000000000 -0400 +@@ -568,7 +568,8 @@ static void mlx5_irq_clear_affinity_hint + mlx5_irq_clear_affinity_hint(mdev, i); + } + +-int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn, int *irqn) ++int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn, ++ unsigned int *irqn) + { + struct mlx5_eq_table *table = &dev->priv.eq_table; + struct mlx5_eq *eq, *n; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c linux-libre-4.4.7-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c +--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c 2016-04-12 12:09:26.000000000 -0400 +@@ -45,6 +45,7 @@ + #include <linux/if_bridge.h> + #include <linux/workqueue.h> + #include <linux/jiffies.h> ++#include <linux/rtnetlink.h> + #include <net/switchdev.h> + + #include "spectrum.h" +@@ -812,6 +813,7 @@ static void mlxsw_sp_fdb_notify_work(str + + mlxsw_sp = container_of(work, struct mlxsw_sp, fdb_notify.dw.work); + ++ rtnl_lock(); + do { + mlxsw_reg_sfn_pack(sfn_pl); + err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl); +@@ -824,6 +826,7 @@ static void mlxsw_sp_fdb_notify_work(str + mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i); + + } while (num_rec); ++ rtnl_unlock(); + + kfree(sfn_pl); + mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/rocker/rocker.c linux-libre-4.4.7-gnu/drivers/net/ethernet/rocker/rocker.c +--- linux-libre-4.4-gnu/drivers/net/ethernet/rocker/rocker.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/ethernet/rocker/rocker.c 2016-04-12 12:09:26.000000000 -0400 +@@ -3531,12 +3531,14 @@ static void rocker_port_fdb_learn_work(s + info.addr = lw->addr; + info.vid = lw->vid; + ++ rtnl_lock(); + if (learned && removing) + call_switchdev_notifiers(SWITCHDEV_FDB_DEL, + lw->rocker_port->dev, &info.info); + else if (learned && !removing) + call_switchdev_notifiers(SWITCHDEV_FDB_ADD, + lw->rocker_port->dev, &info.info); ++ rtnl_unlock(); + + rocker_port_kfree(lw->trans, work); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/synopsys/dwc_eth_qos.c linux-libre-4.4.7-gnu/drivers/net/ethernet/synopsys/dwc_eth_qos.c +--- linux-libre-4.4-gnu/drivers/net/ethernet/synopsys/dwc_eth_qos.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/ethernet/synopsys/dwc_eth_qos.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2107,7 +2107,7 @@ static int dwceqos_tx_frags(struct sk_bu + dd = &lp->tx_descs[lp->tx_next]; + + /* Set DMA Descriptor fields */ +- dd->des0 = dma_handle; ++ dd->des0 = dma_handle + consumed_size; + dd->des1 = 0; + dd->des2 = dma_size; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/irda/irtty-sir.c linux-libre-4.4.7-gnu/drivers/net/irda/irtty-sir.c +--- linux-libre-4.4-gnu/drivers/net/irda/irtty-sir.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/irda/irtty-sir.c 2016-04-12 12:09:26.000000000 -0400 +@@ -430,16 +430,6 @@ static int irtty_open(struct tty_struct + + /* Module stuff handled via irda_ldisc.owner - Jean II */ + +- /* First make sure we're not already connected. */ +- if (tty->disc_data != NULL) { +- priv = tty->disc_data; +- if (priv && priv->magic == IRTTY_MAGIC) { +- ret = -EEXIST; +- goto out; +- } +- tty->disc_data = NULL; /* ### */ +- } +- + /* stop the underlying driver */ + irtty_stop_receiver(tty, TRUE); + if (tty->ops->stop) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/phy/dp83640.c linux-libre-4.4.7-gnu/drivers/net/phy/dp83640.c +--- linux-libre-4.4-gnu/drivers/net/phy/dp83640.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/phy/dp83640.c 2016-04-12 12:09:26.000000000 -0400 +@@ -845,6 +845,11 @@ static void decode_rxts(struct dp83640_p + struct skb_shared_hwtstamps *shhwtstamps = NULL; + struct sk_buff *skb; + unsigned long flags; ++ u8 overflow; ++ ++ overflow = (phy_rxts->ns_hi >> 14) & 0x3; ++ if (overflow) ++ pr_debug("rx timestamp queue overflow, count %d\n", overflow); + + spin_lock_irqsave(&dp83640->rx_lock, flags); + +@@ -887,6 +892,7 @@ static void decode_txts(struct dp83640_p + struct skb_shared_hwtstamps shhwtstamps; + struct sk_buff *skb; + u64 ns; ++ u8 overflow; + + /* We must already have the skb that triggered this. */ + +@@ -896,6 +902,17 @@ static void decode_txts(struct dp83640_p + pr_debug("have timestamp but tx_queue empty\n"); + return; + } ++ ++ overflow = (phy_txts->ns_hi >> 14) & 0x3; ++ if (overflow) { ++ pr_debug("tx timestamp queue overflow, count %d\n", overflow); ++ while (skb) { ++ skb_complete_tx_timestamp(skb, NULL); ++ skb = skb_dequeue(&dp83640->tx_queue); ++ } ++ return; ++ } ++ + ns = phy2txts(phy_txts); + memset(&shhwtstamps, 0, sizeof(shhwtstamps)); + shhwtstamps.hwtstamp = ns_to_ktime(ns); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ppp/pppoe.c linux-libre-4.4.7-gnu/drivers/net/ppp/pppoe.c +--- linux-libre-4.4-gnu/drivers/net/ppp/pppoe.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/ppp/pppoe.c 2016-04-12 12:09:26.000000000 -0400 +@@ -395,6 +395,8 @@ static int pppoe_rcv_core(struct sock *s + + if (!__pppoe_xmit(sk_pppox(relay_po), skb)) + goto abort_put; ++ ++ sock_put(sk_pppox(relay_po)); + } else { + if (sock_queue_rcv_skb(sk, skb)) + goto abort_kfree; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ppp/pptp.c linux-libre-4.4.7-gnu/drivers/net/ppp/pptp.c +--- linux-libre-4.4-gnu/drivers/net/ppp/pptp.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/ppp/pptp.c 2016-04-12 12:09:26.000000000 -0400 +@@ -129,24 +129,27 @@ static int lookup_chan_dst(u16 call_id, + return i < MAX_CALLID; + } + +-static int add_chan(struct pppox_sock *sock) ++static int add_chan(struct pppox_sock *sock, ++ struct pptp_addr *sa) + { + static int call_id; + + spin_lock(&chan_lock); +- if (!sock->proto.pptp.src_addr.call_id) { ++ if (!sa->call_id) { + call_id = find_next_zero_bit(callid_bitmap, MAX_CALLID, call_id + 1); + if (call_id == MAX_CALLID) { + call_id = find_next_zero_bit(callid_bitmap, MAX_CALLID, 1); + if (call_id == MAX_CALLID) + goto out_err; + } +- sock->proto.pptp.src_addr.call_id = call_id; +- } else if (test_bit(sock->proto.pptp.src_addr.call_id, callid_bitmap)) ++ sa->call_id = call_id; ++ } else if (test_bit(sa->call_id, callid_bitmap)) { + goto out_err; ++ } + +- set_bit(sock->proto.pptp.src_addr.call_id, callid_bitmap); +- rcu_assign_pointer(callid_sock[sock->proto.pptp.src_addr.call_id], sock); ++ sock->proto.pptp.src_addr = *sa; ++ set_bit(sa->call_id, callid_bitmap); ++ rcu_assign_pointer(callid_sock[sa->call_id], sock); + spin_unlock(&chan_lock); + + return 0; +@@ -416,7 +419,6 @@ static int pptp_bind(struct socket *sock + struct sock *sk = sock->sk; + struct sockaddr_pppox *sp = (struct sockaddr_pppox *) uservaddr; + struct pppox_sock *po = pppox_sk(sk); +- struct pptp_opt *opt = &po->proto.pptp; + int error = 0; + + if (sockaddr_len < sizeof(struct sockaddr_pppox)) +@@ -424,10 +426,22 @@ static int pptp_bind(struct socket *sock + + lock_sock(sk); + +- opt->src_addr = sp->sa_addr.pptp; +- if (add_chan(po)) ++ if (sk->sk_state & PPPOX_DEAD) { ++ error = -EALREADY; ++ goto out; ++ } ++ ++ if (sk->sk_state & PPPOX_BOUND) { + error = -EBUSY; ++ goto out; ++ } + ++ if (add_chan(po, &sp->sa_addr.pptp)) ++ error = -EBUSY; ++ else ++ sk->sk_state |= PPPOX_BOUND; ++ ++out: + release_sock(sk); + return error; + } +@@ -498,7 +512,7 @@ static int pptp_connect(struct socket *s + } + + opt->dst_addr = sp->sa_addr.pptp; +- sk->sk_state = PPPOX_CONNECTED; ++ sk->sk_state |= PPPOX_CONNECTED; + + end: + release_sock(sk); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/rionet.c linux-libre-4.4.7-gnu/drivers/net/rionet.c +--- linux-libre-4.4-gnu/drivers/net/rionet.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/rionet.c 2016-04-12 12:09:26.000000000 -0400 +@@ -280,7 +280,7 @@ static void rionet_outb_msg_event(struct + struct net_device *ndev = dev_id; + struct rionet_private *rnet = netdev_priv(ndev); + +- spin_lock(&rnet->lock); ++ spin_lock(&rnet->tx_lock); + + if (netif_msg_intr(rnet)) + printk(KERN_INFO +@@ -299,7 +299,7 @@ static void rionet_outb_msg_event(struct + if (rnet->tx_cnt < RIONET_TX_RING_SIZE) + netif_wake_queue(ndev); + +- spin_unlock(&rnet->lock); ++ spin_unlock(&rnet->tx_lock); + } + + static int rionet_open(struct net_device *ndev) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/team/team.c linux-libre-4.4.7-gnu/drivers/net/team/team.c +--- linux-libre-4.4-gnu/drivers/net/team/team.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/team/team.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1845,10 +1845,10 @@ static int team_vlan_rx_kill_vid(struct + struct team *team = netdev_priv(dev); + struct team_port *port; + +- rcu_read_lock(); +- list_for_each_entry_rcu(port, &team->port_list, list) ++ mutex_lock(&team->lock); ++ list_for_each_entry(port, &team->port_list, list) + vlan_vid_del(port->dev, proto, vid); +- rcu_read_unlock(); ++ mutex_unlock(&team->lock); + + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/qmi_wwan.c linux-libre-4.4.7-gnu/drivers/net/usb/qmi_wwan.c +--- linux-libre-4.4-gnu/drivers/net/usb/qmi_wwan.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/usb/qmi_wwan.c 2016-04-12 12:09:26.000000000 -0400 +@@ -492,6 +492,7 @@ static const struct usb_device_id produc + + /* 3. Combined interface devices matching on interface number */ + {QMI_FIXED_INTF(0x0408, 0xea42, 4)}, /* Yota / Megafon M100-1 */ ++ {QMI_FIXED_INTF(0x05c6, 0x6001, 3)}, /* 4G LTE usb-modem U901 */ + {QMI_FIXED_INTF(0x05c6, 0x7000, 0)}, + {QMI_FIXED_INTF(0x05c6, 0x7001, 1)}, + {QMI_FIXED_INTF(0x05c6, 0x7002, 1)}, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/vxlan.c linux-libre-4.4.7-gnu/drivers/net/vxlan.c +--- linux-libre-4.4-gnu/drivers/net/vxlan.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/vxlan.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1984,11 +1984,6 @@ static void vxlan_xmit_one(struct sk_buf + vxlan->cfg.port_max, true); + + if (info) { +- if (info->key.tun_flags & TUNNEL_CSUM) +- flags |= VXLAN_F_UDP_CSUM; +- else +- flags &= ~VXLAN_F_UDP_CSUM; +- + ttl = info->key.ttl; + tos = info->key.tos; + +@@ -2003,8 +1998,15 @@ static void vxlan_xmit_one(struct sk_buf + goto drop; + sk = vxlan->vn4_sock->sock->sk; + +- if (info && (info->key.tun_flags & TUNNEL_DONT_FRAGMENT)) +- df = htons(IP_DF); ++ if (info) { ++ if (info->key.tun_flags & TUNNEL_DONT_FRAGMENT) ++ df = htons(IP_DF); ++ ++ if (info->key.tun_flags & TUNNEL_CSUM) ++ flags |= VXLAN_F_UDP_CSUM; ++ else ++ flags &= ~VXLAN_F_UDP_CSUM; ++ } + + memset(&fl4, 0, sizeof(fl4)); + fl4.flowi4_oif = rdst ? rdst->remote_ifindex : 0; +@@ -2102,6 +2104,13 @@ static void vxlan_xmit_one(struct sk_buf + return; + } + ++ if (info) { ++ if (info->key.tun_flags & TUNNEL_CSUM) ++ flags &= ~VXLAN_F_UDP_ZERO_CSUM6_TX; ++ else ++ flags |= VXLAN_F_UDP_ZERO_CSUM6_TX; ++ } ++ + ttl = ttl ? : ip6_dst_hoplimit(ndst); + err = vxlan6_xmit_skb(ndst, sk, skb, dev, &saddr, &dst->sin6.sin6_addr, + 0, ttl, src_port, dst_port, htonl(vni << 8), md, +@@ -2751,7 +2760,7 @@ static int vxlan_dev_configure(struct ne + struct vxlan_config *conf) + { + struct vxlan_net *vn = net_generic(src_net, vxlan_net_id); +- struct vxlan_dev *vxlan = netdev_priv(dev); ++ struct vxlan_dev *vxlan = netdev_priv(dev), *tmp; + struct vxlan_rdst *dst = &vxlan->default_dst; + unsigned short needed_headroom = ETH_HLEN; + int err; +@@ -2817,9 +2826,15 @@ static int vxlan_dev_configure(struct ne + if (!vxlan->cfg.age_interval) + vxlan->cfg.age_interval = FDB_AGE_DEFAULT; + +- if (vxlan_find_vni(src_net, conf->vni, use_ipv6 ? AF_INET6 : AF_INET, +- vxlan->cfg.dst_port, vxlan->flags)) ++ list_for_each_entry(tmp, &vn->vxlan_list, next) { ++ if (tmp->cfg.vni == conf->vni && ++ (tmp->default_dst.remote_ip.sa.sa_family == AF_INET6 || ++ tmp->cfg.saddr.sa.sa_family == AF_INET6) == use_ipv6 && ++ tmp->cfg.dst_port == vxlan->cfg.dst_port && ++ (tmp->flags & VXLAN_F_RCV_FLAGS) == ++ (vxlan->flags & VXLAN_F_RCV_FLAGS)) + return -EEXIST; ++ } + + dev->ethtool_ops = &vxlan_ethtool_ops; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/dvm/lib.c linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/dvm/lib.c +--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/dvm/lib.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/dvm/lib.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1154,6 +1154,9 @@ int iwlagn_suspend(struct iwl_priv *priv + + priv->ucode_loaded = false; + iwl_trans_stop_device(priv->trans); ++ ret = iwl_trans_start_hw(priv->trans); ++ if (ret) ++ goto out; + + priv->wowlan = true; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/fw.c linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/mvm/fw.c +--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/fw.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/mvm/fw.c 2016-04-12 12:09:26.000000000 -0400 +@@ -106,7 +106,7 @@ static int iwl_send_tx_ant_cfg(struct iw + sizeof(tx_ant_cmd), &tx_ant_cmd); + } + +-static void iwl_free_fw_paging(struct iwl_mvm *mvm) ++void iwl_free_fw_paging(struct iwl_mvm *mvm) + { + int i; + +@@ -126,6 +126,8 @@ static void iwl_free_fw_paging(struct iw + get_order(mvm->fw_paging_db[i].fw_paging_size)); + } + kfree(mvm->trans->paging_download_buf); ++ mvm->trans->paging_download_buf = NULL; ++ + memset(mvm->fw_paging_db, 0, sizeof(mvm->fw_paging_db)); + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/mvm.h linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/mvm/mvm.h +--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/mvm.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/mvm/mvm.h 2016-04-12 12:09:26.000000000 -0400 +@@ -1190,6 +1190,9 @@ void iwl_mvm_rx_umac_scan_complete_notif + void iwl_mvm_rx_umac_scan_iter_complete_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb); + ++/* Paging */ ++void iwl_free_fw_paging(struct iwl_mvm *mvm); ++ + /* MVM debugfs */ + #ifdef CONFIG_IWLWIFI_DEBUGFS + int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/ops.c linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/mvm/ops.c +--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/ops.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/mvm/ops.c 2016-04-12 12:09:26.000000000 -0400 +@@ -645,6 +645,8 @@ static void iwl_op_mode_mvm_stop(struct + for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) + kfree(mvm->nvm_sections[i].data); + ++ iwl_free_fw_paging(mvm); ++ + iwl_mvm_tof_clean(mvm); + + ieee80211_free_hw(mvm->hw); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/scan.c linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/mvm/scan.c +--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/scan.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/mvm/scan.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1267,6 +1267,10 @@ int iwl_mvm_sched_scan_start(struct iwl_ + return -EBUSY; + } + ++ /* we don't support "match all" in the firmware */ ++ if (!req->n_match_sets) ++ return -EOPNOTSUPP; ++ + ret = iwl_mvm_check_running_scans(mvm, type); + if (ret) + return ret; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/tx.c linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/mvm/tx.c +--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/tx.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/mvm/tx.c 2016-04-12 12:09:26.000000000 -0400 +@@ -421,6 +421,15 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mv + return -1; + } + ++ /* ++ * Increase the pending frames counter, so that later when a reply comes ++ * in and the counter is decreased - we don't start getting negative ++ * values. ++ * Note that we don't need to make sure it isn't agg'd, since we're ++ * TXing non-sta ++ */ ++ atomic_inc(&mvm->pending_frames[sta_id]); ++ + return 0; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/pcie/drv.c linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/pcie/drv.c +--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/pcie/drv.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/pcie/drv.c 2016-04-12 12:09:26.000000000 -0400 +@@ -384,6 +384,7 @@ static const struct pci_device_id iwl_hw + {IWL_PCI_DEVICE(0x095B, 0x5310, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095B, 0x5302, iwl7265_n_cfg)}, + {IWL_PCI_DEVICE(0x095B, 0x5210, iwl7265_2ac_cfg)}, ++ {IWL_PCI_DEVICE(0x095A, 0x5C10, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5012, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5412, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5410, iwl7265_2ac_cfg)}, +@@ -401,10 +402,10 @@ static const struct pci_device_id iwl_hw + {IWL_PCI_DEVICE(0x095A, 0x900A, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x9110, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x9112, iwl7265_2ac_cfg)}, +- {IWL_PCI_DEVICE(0x095A, 0x9210, iwl7265_2ac_cfg)}, ++ {IWL_PCI_DEVICE(0x095B, 0x9210, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095B, 0x9200, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x9510, iwl7265_2ac_cfg)}, +- {IWL_PCI_DEVICE(0x095A, 0x9310, iwl7265_2ac_cfg)}, ++ {IWL_PCI_DEVICE(0x095B, 0x9310, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x9410, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5020, iwl7265_2n_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x502A, iwl7265_2n_cfg)}, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/pcie/trans.c linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/pcie/trans.c +--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/pcie/trans.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/iwlwifi/pcie/trans.c 2016-04-12 12:09:26.000000000 -0400 +@@ -7,6 +7,7 @@ + * + * Copyright(c) 2007 - 2015 Intel Corporation. All rights reserved. + * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH ++ * Copyright(c) 2016 Intel Deutschland GmbH + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as +@@ -33,6 +34,7 @@ + * + * Copyright(c) 2005 - 2015 Intel Corporation. All rights reserved. + * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH ++ * Copyright(c) 2016 Intel Deutschland GmbH + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without +@@ -924,9 +926,16 @@ monitor: + if (dest->monitor_mode == EXTERNAL_MODE && trans_pcie->fw_mon_size) { + iwl_write_prph(trans, le32_to_cpu(dest->base_reg), + trans_pcie->fw_mon_phys >> dest->base_shift); +- iwl_write_prph(trans, le32_to_cpu(dest->end_reg), +- (trans_pcie->fw_mon_phys + +- trans_pcie->fw_mon_size) >> dest->end_shift); ++ if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) ++ iwl_write_prph(trans, le32_to_cpu(dest->end_reg), ++ (trans_pcie->fw_mon_phys + ++ trans_pcie->fw_mon_size - 256) >> ++ dest->end_shift); ++ else ++ iwl_write_prph(trans, le32_to_cpu(dest->end_reg), ++ (trans_pcie->fw_mon_phys + ++ trans_pcie->fw_mon_size) >> ++ dest->end_shift); + } + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/pci.c linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/pci.c +--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/pci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/pci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -801,7 +801,9 @@ static void _rtl_pci_rx_interrupt(struct + hw_queue); + if (rx_remained_cnt == 0) + return; +- ++ buffer_desc = &rtlpci->rx_ring[rxring_idx].buffer_desc[ ++ rtlpci->rx_ring[rxring_idx].idx]; ++ pdesc = (struct rtl_rx_desc *)skb->data; + } else { /* rx descriptor */ + pdesc = &rtlpci->rx_ring[rxring_idx].desc[ + rtlpci->rx_ring[rxring_idx].idx]; +@@ -824,13 +826,6 @@ static void _rtl_pci_rx_interrupt(struct + new_skb = dev_alloc_skb(rtlpci->rxbuffersize); + if (unlikely(!new_skb)) + goto no_new; +- if (rtlpriv->use_new_trx_flow) { +- buffer_desc = +- &rtlpci->rx_ring[rxring_idx].buffer_desc +- [rtlpci->rx_ring[rxring_idx].idx]; +- /*means rx wifi info*/ +- pdesc = (struct rtl_rx_desc *)skb->data; +- } + memset(&rx_status , 0 , sizeof(rx_status)); + rtlpriv->cfg->ops->query_rx_desc(hw, &stats, + &rx_status, (u8 *)pdesc, skb); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/regd.c linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/regd.c +--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/regd.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/regd.c 2016-04-12 12:09:26.000000000 -0400 +@@ -351,7 +351,6 @@ static const struct ieee80211_regdomain + case COUNTRY_CODE_SPAIN: + case COUNTRY_CODE_FRANCE: + case COUNTRY_CODE_ISRAEL: +- case COUNTRY_CODE_WORLD_WIDE_13: + return &rtl_regdom_12_13; + case COUNTRY_CODE_MKK: + case COUNTRY_CODE_MKK1: +@@ -360,6 +359,7 @@ static const struct ieee80211_regdomain + return &rtl_regdom_14_60_64; + case COUNTRY_CODE_GLOBAL_DOMAIN: + return &rtl_regdom_14; ++ case COUNTRY_CODE_WORLD_WIDE_13: + case COUNTRY_CODE_WORLD_WIDE_13_5G_ALL: + return &rtl_regdom_12_13_5g_all; + default: +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c +--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c 2016-01-10 21:10:21.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c 2016-04-12 21:26:48.000000000 -0400 +@@ -88,8 +88,6 @@ int rtl88e_init_sw_vars(struct ieee80211 + u8 tid; + + rtl8188ee_bt_reg_init(hw); +- rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support; +- + rtlpriv->dm.dm_initialgain_enable = 1; + rtlpriv->dm.dm_flag = 0; + rtlpriv->dm.disable_framebursting = 0; +@@ -138,6 +136,11 @@ int rtl88e_init_sw_vars(struct ieee80211 + rtlpriv->psc.inactiveps = rtlpriv->cfg->mod_params->inactiveps; + rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps; + rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps; ++ rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support; ++ rtlpriv->cfg->mod_params->sw_crypto = ++ rtlpriv->cfg->mod_params->sw_crypto; ++ rtlpriv->cfg->mod_params->disable_watchdog = ++ rtlpriv->cfg->mod_params->disable_watchdog; + if (rtlpriv->cfg->mod_params->disable_watchdog) + pr_info("watchdog disabled\n"); + if (!rtlpriv->psc.inactiveps) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c +--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c 2016-01-10 21:10:29.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c 2016-04-12 21:26:56.000000000 -0400 +@@ -139,6 +139,8 @@ int rtl92c_init_sw_vars(struct ieee80211 + rtlpriv->psc.inactiveps = rtlpriv->cfg->mod_params->inactiveps; + rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps; + rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps; ++ rtlpriv->cfg->mod_params->sw_crypto = ++ rtlpriv->cfg->mod_params->sw_crypto; + if (!rtlpriv->psc.inactiveps) + pr_info("rtl8192ce: Power Save off (module option)\n"); + if (!rtlpriv->psc.fwctrl_lps) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c +--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c 2016-01-10 21:10:31.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c 2016-04-12 21:26:58.000000000 -0400 +@@ -62,6 +62,8 @@ static int rtl92cu_init_sw_vars(struct i + rtlpriv->dm.disable_framebursting = false; + rtlpriv->dm.thermalvalue = 0; + rtlpriv->dbg.global_debuglevel = rtlpriv->cfg->mod_params->debug; ++ rtlpriv->cfg->mod_params->sw_crypto = ++ rtlpriv->cfg->mod_params->sw_crypto; + + /* for firmware buf */ + rtlpriv->rtlhal.pfirmware = vzalloc(0x4000); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c +--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c 2016-01-10 21:10:33.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c 2016-04-12 21:27:00.000000000 -0400 +@@ -376,8 +376,8 @@ module_param_named(swlps, rtl92de_mod_pa + module_param_named(fwlps, rtl92de_mod_params.fwctrl_lps, bool, 0444); + MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n"); + MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n"); +-MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n"); +-MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n"); ++MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 1)\n"); ++MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 0)\n"); + MODULE_PARM_DESC(debug, "Set debug level (0-5) (default 0)"); + + static SIMPLE_DEV_PM_OPS(rtlwifi_pm_ops, rtl_pci_suspend, rtl_pci_resume); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c +--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c 2016-01-10 21:10:36.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c 2016-04-12 21:27:03.000000000 -0400 +@@ -187,6 +187,8 @@ static int rtl92s_init_sw_vars(struct ie + rtlpriv->psc.inactiveps = rtlpriv->cfg->mod_params->inactiveps; + rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps; + rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps; ++ rtlpriv->cfg->mod_params->sw_crypto = ++ rtlpriv->cfg->mod_params->sw_crypto; + if (!rtlpriv->psc.inactiveps) + pr_info("Power Save off (module option)\n"); + if (!rtlpriv->psc.fwctrl_lps) +@@ -425,8 +427,8 @@ module_param_named(swlps, rtl92se_mod_pa + module_param_named(fwlps, rtl92se_mod_params.fwctrl_lps, bool, 0444); + MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n"); + MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n"); +-MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n"); +-MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n"); ++MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 1)\n"); ++MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 0)\n"); + MODULE_PARM_DESC(debug, "Set debug level (0-5) (default 0)"); + + static SIMPLE_DEV_PM_OPS(rtlwifi_pm_ops, rtl_pci_suspend, rtl_pci_resume); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c +--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c 2016-01-10 21:10:51.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c 2016-04-12 21:27:19.000000000 -0400 +@@ -150,6 +150,11 @@ int rtl8723e_init_sw_vars(struct ieee802 + rtlpriv->psc.inactiveps = rtlpriv->cfg->mod_params->inactiveps; + rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps; + rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps; ++ rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support; ++ rtlpriv->cfg->mod_params->sw_crypto = ++ rtlpriv->cfg->mod_params->sw_crypto; ++ rtlpriv->cfg->mod_params->disable_watchdog = ++ rtlpriv->cfg->mod_params->disable_watchdog; + if (rtlpriv->cfg->mod_params->disable_watchdog) + pr_info("watchdog disabled\n"); + rtlpriv->psc.reg_fwctrl_lps = 3; +@@ -267,6 +272,8 @@ static struct rtl_mod_params rtl8723e_mo + .swctrl_lps = false, + .fwctrl_lps = true, + .debug = DBG_EMERG, ++ .msi_support = false, ++ .disable_watchdog = false, + }; + + static struct rtl_hal_cfg rtl8723e_hal_cfg = { +@@ -383,12 +390,14 @@ module_param_named(debug, rtl8723e_mod_p + module_param_named(ips, rtl8723e_mod_params.inactiveps, bool, 0444); + module_param_named(swlps, rtl8723e_mod_params.swctrl_lps, bool, 0444); + module_param_named(fwlps, rtl8723e_mod_params.fwctrl_lps, bool, 0444); ++module_param_named(msi, rtl8723e_mod_params.msi_support, bool, 0444); + module_param_named(disable_watchdog, rtl8723e_mod_params.disable_watchdog, + bool, 0444); + MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n"); + MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n"); + MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n"); + MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n"); ++MODULE_PARM_DESC(msi, "Set to 1 to use MSI interrupts mode (default 0)\n"); + MODULE_PARM_DESC(debug, "Set debug level (0-5) (default 0)"); + MODULE_PARM_DESC(disable_watchdog, "Set to 1 to disable the watchdog (default 0)\n"); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c +--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c 2016-01-10 21:11:00.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c 2016-04-12 21:27:27.000000000 -0400 +@@ -93,7 +93,6 @@ int rtl8723be_init_sw_vars(struct ieee80 + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + + rtl8723be_bt_reg_init(hw); +- rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support; + rtlpriv->btcoexist.btc_ops = rtl_btc_get_ops_pointer(); + + rtlpriv->dm.dm_initialgain_enable = 1; +@@ -151,6 +150,10 @@ int rtl8723be_init_sw_vars(struct ieee80 + rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps; + rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps; + rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support; ++ rtlpriv->cfg->mod_params->sw_crypto = ++ rtlpriv->cfg->mod_params->sw_crypto; ++ rtlpriv->cfg->mod_params->disable_watchdog = ++ rtlpriv->cfg->mod_params->disable_watchdog; + if (rtlpriv->cfg->mod_params->disable_watchdog) + pr_info("watchdog disabled\n"); + rtlpriv->psc.reg_fwctrl_lps = 3; +@@ -267,6 +270,9 @@ static struct rtl_mod_params rtl8723be_m + .inactiveps = true, + .swctrl_lps = false, + .fwctrl_lps = true, ++ .msi_support = false, ++ .disable_watchdog = false, ++ .debug = DBG_EMERG, + }; + + static struct rtl_hal_cfg rtl8723be_hal_cfg = { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c +--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c 2016-01-10 21:11:02.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c 2016-04-12 21:27:29.000000000 -0400 +@@ -95,8 +95,6 @@ int rtl8821ae_init_sw_vars(struct ieee80 + struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); + + rtl8821ae_bt_reg_init(hw); +- rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support; +- rtlpci->int_clear = rtlpriv->cfg->mod_params->int_clear; + rtlpriv->btcoexist.btc_ops = rtl_btc_get_ops_pointer(); + + rtlpriv->dm.dm_initialgain_enable = 1; +@@ -168,12 +166,15 @@ int rtl8821ae_init_sw_vars(struct ieee80 + rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps; + rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps; + rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support; +- rtlpci->msi_support = rtlpriv->cfg->mod_params->int_clear; ++ rtlpci->int_clear = rtlpriv->cfg->mod_params->int_clear; ++ rtlpriv->cfg->mod_params->sw_crypto = ++ rtlpriv->cfg->mod_params->sw_crypto; ++ rtlpriv->cfg->mod_params->disable_watchdog = ++ rtlpriv->cfg->mod_params->disable_watchdog; + if (rtlpriv->cfg->mod_params->disable_watchdog) + pr_info("watchdog disabled\n"); + rtlpriv->psc.reg_fwctrl_lps = 3; + rtlpriv->psc.reg_max_lps_awakeintvl = 5; +- rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support; + + /* for ASPM, you can close aspm through + * set const_support_pciaspm = 0 +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c +--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c 2016-04-12 12:09:26.000000000 -0400 +@@ -531,6 +531,8 @@ static void _rtl_usb_rx_process_noagg(st + ieee80211_rx(hw, skb); + else + dev_kfree_skb_any(skb); ++ } else { ++ dev_kfree_skb_any(skb); + } + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ti/wlcore/io.h linux-libre-4.4.7-gnu/drivers/net/wireless/ti/wlcore/io.h +--- linux-libre-4.4-gnu/drivers/net/wireless/ti/wlcore/io.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/ti/wlcore/io.h 2016-04-12 12:09:26.000000000 -0400 +@@ -207,19 +207,23 @@ static inline int __must_check wlcore_wr + + static inline void wl1271_power_off(struct wl1271 *wl) + { +- int ret; ++ int ret = 0; + + if (!test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags)) + return; + +- ret = wl->if_ops->power(wl->dev, false); ++ if (wl->if_ops->power) ++ ret = wl->if_ops->power(wl->dev, false); + if (!ret) + clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags); + } + + static inline int wl1271_power_on(struct wl1271 *wl) + { +- int ret = wl->if_ops->power(wl->dev, true); ++ int ret = 0; ++ ++ if (wl->if_ops->power) ++ ret = wl->if_ops->power(wl->dev, true); + if (ret == 0) + set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ti/wlcore/spi.c linux-libre-4.4.7-gnu/drivers/net/wireless/ti/wlcore/spi.c +--- linux-libre-4.4-gnu/drivers/net/wireless/ti/wlcore/spi.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/net/wireless/ti/wlcore/spi.c 2016-04-12 12:09:26.000000000 -0400 +@@ -73,7 +73,10 @@ + */ + #define SPI_AGGR_BUFFER_SIZE (4 * PAGE_SIZE) + +-#define WSPI_MAX_NUM_OF_CHUNKS (SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE) ++/* Maximum number of SPI write chunks */ ++#define WSPI_MAX_NUM_OF_CHUNKS \ ++ ((SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE) + 1) ++ + + struct wl12xx_spi_glue { + struct device *dev; +@@ -268,9 +271,10 @@ static int __must_check wl12xx_spi_raw_w + void *buf, size_t len, bool fixed) + { + struct wl12xx_spi_glue *glue = dev_get_drvdata(child->parent); +- struct spi_transfer t[2 * (WSPI_MAX_NUM_OF_CHUNKS + 1)]; ++ /* SPI write buffers - 2 for each chunk */ ++ struct spi_transfer t[2 * WSPI_MAX_NUM_OF_CHUNKS]; + struct spi_message m; +- u32 commands[WSPI_MAX_NUM_OF_CHUNKS]; ++ u32 commands[WSPI_MAX_NUM_OF_CHUNKS]; /* 1 command per chunk */ + u32 *cmd; + u32 chunk_len; + int i; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nvdimm/bus.c linux-libre-4.4.7-gnu/drivers/nvdimm/bus.c +--- linux-libre-4.4-gnu/drivers/nvdimm/bus.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/nvdimm/bus.c 2016-04-12 12:09:26.000000000 -0400 +@@ -513,10 +513,10 @@ static int __nd_ioctl(struct nvdimm_bus + + /* fail write commands (when read-only) */ + if (read_only) +- switch (ioctl_cmd) { +- case ND_IOCTL_VENDOR: +- case ND_IOCTL_SET_CONFIG_DATA: +- case ND_IOCTL_ARS_START: ++ switch (cmd) { ++ case ND_CMD_VENDOR: ++ case ND_CMD_SET_CONFIG_DATA: ++ case ND_CMD_ARS_START: + dev_dbg(&nvdimm_bus->dev, "'%s' command while read-only.\n", + nvdimm ? nvdimm_cmd_name(cmd) + : nvdimm_bus_cmd_name(cmd)); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nvdimm/namespace_devs.c linux-libre-4.4.7-gnu/drivers/nvdimm/namespace_devs.c +--- linux-libre-4.4-gnu/drivers/nvdimm/namespace_devs.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/nvdimm/namespace_devs.c 2016-04-12 12:09:26.000000000 -0400 +@@ -77,6 +77,59 @@ static bool is_namespace_io(struct devic + return dev ? dev->type == &namespace_io_device_type : false; + } + ++static int is_uuid_busy(struct device *dev, void *data) ++{ ++ u8 *uuid1 = data, *uuid2 = NULL; ++ ++ if (is_namespace_pmem(dev)) { ++ struct nd_namespace_pmem *nspm = to_nd_namespace_pmem(dev); ++ ++ uuid2 = nspm->uuid; ++ } else if (is_namespace_blk(dev)) { ++ struct nd_namespace_blk *nsblk = to_nd_namespace_blk(dev); ++ ++ uuid2 = nsblk->uuid; ++ } else if (is_nd_btt(dev)) { ++ struct nd_btt *nd_btt = to_nd_btt(dev); ++ ++ uuid2 = nd_btt->uuid; ++ } else if (is_nd_pfn(dev)) { ++ struct nd_pfn *nd_pfn = to_nd_pfn(dev); ++ ++ uuid2 = nd_pfn->uuid; ++ } ++ ++ if (uuid2 && memcmp(uuid1, uuid2, NSLABEL_UUID_LEN) == 0) ++ return -EBUSY; ++ ++ return 0; ++} ++ ++static int is_namespace_uuid_busy(struct device *dev, void *data) ++{ ++ if (is_nd_pmem(dev) || is_nd_blk(dev)) ++ return device_for_each_child(dev, data, is_uuid_busy); ++ return 0; ++} ++ ++/** ++ * nd_is_uuid_unique - verify that no other namespace has @uuid ++ * @dev: any device on a nvdimm_bus ++ * @uuid: uuid to check ++ */ ++bool nd_is_uuid_unique(struct device *dev, u8 *uuid) ++{ ++ struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(dev); ++ ++ if (!nvdimm_bus) ++ return false; ++ WARN_ON_ONCE(!is_nvdimm_bus_locked(&nvdimm_bus->dev)); ++ if (device_for_each_child(&nvdimm_bus->dev, uuid, ++ is_namespace_uuid_busy) != 0) ++ return false; ++ return true; ++} ++ + bool pmem_should_map_pages(struct device *dev) + { + struct nd_region *nd_region = to_nd_region(dev->parent); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nvdimm/region_devs.c linux-libre-4.4.7-gnu/drivers/nvdimm/region_devs.c +--- linux-libre-4.4-gnu/drivers/nvdimm/region_devs.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/nvdimm/region_devs.c 2016-04-12 12:09:26.000000000 -0400 +@@ -134,62 +134,6 @@ int nd_region_to_nstype(struct nd_region + } + EXPORT_SYMBOL(nd_region_to_nstype); + +-static int is_uuid_busy(struct device *dev, void *data) +-{ +- struct nd_region *nd_region = to_nd_region(dev->parent); +- u8 *uuid = data; +- +- switch (nd_region_to_nstype(nd_region)) { +- case ND_DEVICE_NAMESPACE_PMEM: { +- struct nd_namespace_pmem *nspm = to_nd_namespace_pmem(dev); +- +- if (!nspm->uuid) +- break; +- if (memcmp(uuid, nspm->uuid, NSLABEL_UUID_LEN) == 0) +- return -EBUSY; +- break; +- } +- case ND_DEVICE_NAMESPACE_BLK: { +- struct nd_namespace_blk *nsblk = to_nd_namespace_blk(dev); +- +- if (!nsblk->uuid) +- break; +- if (memcmp(uuid, nsblk->uuid, NSLABEL_UUID_LEN) == 0) +- return -EBUSY; +- break; +- } +- default: +- break; +- } +- +- return 0; +-} +- +-static int is_namespace_uuid_busy(struct device *dev, void *data) +-{ +- if (is_nd_pmem(dev) || is_nd_blk(dev)) +- return device_for_each_child(dev, data, is_uuid_busy); +- return 0; +-} +- +-/** +- * nd_is_uuid_unique - verify that no other namespace has @uuid +- * @dev: any device on a nvdimm_bus +- * @uuid: uuid to check +- */ +-bool nd_is_uuid_unique(struct device *dev, u8 *uuid) +-{ +- struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(dev); +- +- if (!nvdimm_bus) +- return false; +- WARN_ON_ONCE(!is_nvdimm_bus_locked(&nvdimm_bus->dev)); +- if (device_for_each_child(&nvdimm_bus->dev, uuid, +- is_namespace_uuid_busy) != 0) +- return false; +- return true; +-} +- + static ssize_t size_show(struct device *dev, + struct device_attribute *attr, char *buf) + { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/of/irq.c linux-libre-4.4.7-gnu/drivers/of/irq.c +--- linux-libre-4.4-gnu/drivers/of/irq.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/of/irq.c 2016-04-12 12:09:26.000000000 -0400 +@@ -636,6 +636,13 @@ static u32 __of_msi_map_rid(struct devic + msi_base = be32_to_cpup(msi_map + 2); + rid_len = be32_to_cpup(msi_map + 3); + ++ if (rid_base & ~map_mask) { ++ dev_err(parent_dev, ++ "Invalid msi-map translation - msi-map-mask (0x%x) ignores rid-base (0x%x)\n", ++ map_mask, rid_base); ++ return rid_out; ++ } ++ + msi_controller_node = of_find_node_by_phandle(phandle); + + matched = (masked_rid >= rid_base && +@@ -655,7 +662,7 @@ static u32 __of_msi_map_rid(struct devic + if (!matched) + return rid_out; + +- rid_out = masked_rid + msi_base; ++ rid_out = masked_rid - rid_base + msi_base; + dev_dbg(dev, + "msi-map at: %s, using mask %08x, rid-base: %08x, msi-base: %08x, length: %08x, rid: %08x -> %08x\n", + dev_name(parent_dev), map_mask, rid_base, msi_base, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/of/of_reserved_mem.c linux-libre-4.4.7-gnu/drivers/of/of_reserved_mem.c +--- linux-libre-4.4-gnu/drivers/of/of_reserved_mem.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/of/of_reserved_mem.c 2016-04-12 12:09:26.000000000 -0400 +@@ -32,11 +32,13 @@ int __init __weak early_init_dt_alloc_re + phys_addr_t align, phys_addr_t start, phys_addr_t end, bool nomap, + phys_addr_t *res_base) + { ++ phys_addr_t base; + /* + * We use __memblock_alloc_base() because memblock_alloc_base() + * panic()s on allocation failure. + */ +- phys_addr_t base = __memblock_alloc_base(size, align, end); ++ end = !end ? MEMBLOCK_ALLOC_ANYWHERE : end; ++ base = __memblock_alloc_base(size, align, end); + if (!base) + return -ENOMEM; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/bus.c linux-libre-4.4.7-gnu/drivers/pci/bus.c +--- linux-libre-4.4-gnu/drivers/pci/bus.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/bus.c 2016-04-12 12:09:26.000000000 -0400 +@@ -140,6 +140,8 @@ static int pci_bus_alloc_from_region(str + type_mask |= IORESOURCE_TYPE_BITS; + + pci_bus_for_each_resource(bus, r, i) { ++ resource_size_t min_used = min; ++ + if (!r) + continue; + +@@ -163,12 +165,12 @@ static int pci_bus_alloc_from_region(str + * overrides "min". + */ + if (avail.start) +- min = avail.start; ++ min_used = avail.start; + + max = avail.end; + + /* Ok, try it out.. */ +- ret = allocate_resource(r, res, size, min, max, ++ ret = allocate_resource(r, res, size, min_used, max, + align, alignf, alignf_data); + if (ret == 0) + return 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pci-dra7xx.c linux-libre-4.4.7-gnu/drivers/pci/host/pci-dra7xx.c +--- linux-libre-4.4-gnu/drivers/pci/host/pci-dra7xx.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/host/pci-dra7xx.c 2016-04-12 12:09:26.000000000 -0400 +@@ -302,7 +302,8 @@ static int __init dra7xx_add_pcie_port(s + } + + ret = devm_request_irq(&pdev->dev, pp->irq, +- dra7xx_pcie_msi_irq_handler, IRQF_SHARED, ++ dra7xx_pcie_msi_irq_handler, ++ IRQF_SHARED | IRQF_NO_THREAD, + "dra7-pcie-msi", pp); + if (ret) { + dev_err(&pdev->dev, "failed to request irq\n"); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pcie-rcar.c linux-libre-4.4.7-gnu/drivers/pci/host/pcie-rcar.c +--- linux-libre-4.4-gnu/drivers/pci/host/pcie-rcar.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/host/pcie-rcar.c 2016-04-12 12:09:26.000000000 -0400 +@@ -720,14 +720,16 @@ static int rcar_pcie_enable_msi(struct r + + /* Two irqs are for MSI, but they are also used for non-MSI irqs */ + err = devm_request_irq(&pdev->dev, msi->irq1, rcar_pcie_msi_irq, +- IRQF_SHARED, rcar_msi_irq_chip.name, pcie); ++ IRQF_SHARED | IRQF_NO_THREAD, ++ rcar_msi_irq_chip.name, pcie); + if (err < 0) { + dev_err(&pdev->dev, "failed to request IRQ: %d\n", err); + goto err; + } + + err = devm_request_irq(&pdev->dev, msi->irq2, rcar_pcie_msi_irq, +- IRQF_SHARED, rcar_msi_irq_chip.name, pcie); ++ IRQF_SHARED | IRQF_NO_THREAD, ++ rcar_msi_irq_chip.name, pcie); + if (err < 0) { + dev_err(&pdev->dev, "failed to request IRQ: %d\n", err); + goto err; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pcie-spear13xx.c linux-libre-4.4.7-gnu/drivers/pci/host/pcie-spear13xx.c +--- linux-libre-4.4-gnu/drivers/pci/host/pcie-spear13xx.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/host/pcie-spear13xx.c 2016-04-12 12:09:26.000000000 -0400 +@@ -279,7 +279,8 @@ static int spear13xx_add_pcie_port(struc + return -ENODEV; + } + ret = devm_request_irq(dev, pp->irq, spear13xx_pcie_irq_handler, +- IRQF_SHARED, "spear1340-pcie", pp); ++ IRQF_SHARED | IRQF_NO_THREAD, ++ "spear1340-pcie", pp); + if (ret) { + dev_err(dev, "failed to request irq %d\n", pp->irq); + return ret; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pcie-xilinx.c linux-libre-4.4.7-gnu/drivers/pci/host/pcie-xilinx.c +--- linux-libre-4.4-gnu/drivers/pci/host/pcie-xilinx.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/host/pcie-xilinx.c 2016-04-12 12:09:26.000000000 -0400 +@@ -781,7 +781,8 @@ static int xilinx_pcie_parse_dt(struct x + + port->irq = irq_of_parse_and_map(node, 0); + err = devm_request_irq(dev, port->irq, xilinx_pcie_intr_handler, +- IRQF_SHARED, "xilinx-pcie", port); ++ IRQF_SHARED | IRQF_NO_THREAD, ++ "xilinx-pcie", port); + if (err) { + dev_err(dev, "unable to request irq %d\n", port->irq); + return err; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pci-exynos.c linux-libre-4.4.7-gnu/drivers/pci/host/pci-exynos.c +--- linux-libre-4.4-gnu/drivers/pci/host/pci-exynos.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/host/pci-exynos.c 2016-04-12 12:09:26.000000000 -0400 +@@ -522,7 +522,8 @@ static int __init exynos_add_pcie_port(s + + ret = devm_request_irq(&pdev->dev, pp->msi_irq, + exynos_pcie_msi_irq_handler, +- IRQF_SHARED, "exynos-pcie", pp); ++ IRQF_SHARED | IRQF_NO_THREAD, ++ "exynos-pcie", pp); + if (ret) { + dev_err(&pdev->dev, "failed to request msi irq\n"); + return ret; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pci-imx6.c linux-libre-4.4.7-gnu/drivers/pci/host/pci-imx6.c +--- linux-libre-4.4-gnu/drivers/pci/host/pci-imx6.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/host/pci-imx6.c 2016-04-12 12:09:26.000000000 -0400 +@@ -537,7 +537,8 @@ static int __init imx6_add_pcie_port(str + + ret = devm_request_irq(&pdev->dev, pp->msi_irq, + imx6_pcie_msi_handler, +- IRQF_SHARED, "mx6-pcie-msi", pp); ++ IRQF_SHARED | IRQF_NO_THREAD, ++ "mx6-pcie-msi", pp); + if (ret) { + dev_err(&pdev->dev, "failed to request MSI irq\n"); + return ret; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pci-keystone-dw.c linux-libre-4.4.7-gnu/drivers/pci/host/pci-keystone-dw.c +--- linux-libre-4.4-gnu/drivers/pci/host/pci-keystone-dw.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/host/pci-keystone-dw.c 2016-04-12 12:09:26.000000000 -0400 +@@ -58,11 +58,6 @@ + + #define to_keystone_pcie(x) container_of(x, struct keystone_pcie, pp) + +-static inline struct pcie_port *sys_to_pcie(struct pci_sys_data *sys) +-{ +- return sys->private_data; +-} +- + static inline void update_reg_offset_bit_pos(u32 offset, u32 *reg_offset, + u32 *bit_pos) + { +@@ -108,7 +103,7 @@ static void ks_dw_pcie_msi_irq_ack(struc + struct pcie_port *pp; + + msi = irq_data_get_msi_desc(d); +- pp = sys_to_pcie(msi_desc_to_pci_sysdata(msi)); ++ pp = (struct pcie_port *) msi_desc_to_pci_sysdata(msi); + ks_pcie = to_keystone_pcie(pp); + offset = d->irq - irq_linear_revmap(pp->irq_domain, 0); + update_reg_offset_bit_pos(offset, ®_offset, &bit_pos); +@@ -146,7 +141,7 @@ static void ks_dw_pcie_msi_irq_mask(stru + u32 offset; + + msi = irq_data_get_msi_desc(d); +- pp = sys_to_pcie(msi_desc_to_pci_sysdata(msi)); ++ pp = (struct pcie_port *) msi_desc_to_pci_sysdata(msi); + ks_pcie = to_keystone_pcie(pp); + offset = d->irq - irq_linear_revmap(pp->irq_domain, 0); + +@@ -167,7 +162,7 @@ static void ks_dw_pcie_msi_irq_unmask(st + u32 offset; + + msi = irq_data_get_msi_desc(d); +- pp = sys_to_pcie(msi_desc_to_pci_sysdata(msi)); ++ pp = (struct pcie_port *) msi_desc_to_pci_sysdata(msi); + ks_pcie = to_keystone_pcie(pp); + offset = d->irq - irq_linear_revmap(pp->irq_domain, 0); + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pci-tegra.c linux-libre-4.4.7-gnu/drivers/pci/host/pci-tegra.c +--- linux-libre-4.4-gnu/drivers/pci/host/pci-tegra.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/host/pci-tegra.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1288,7 +1288,7 @@ static int tegra_pcie_enable_msi(struct + + msi->irq = err; + +- err = request_irq(msi->irq, tegra_pcie_msi_irq, 0, ++ err = request_irq(msi->irq, tegra_pcie_msi_irq, IRQF_NO_THREAD, + tegra_msi_irq_chip.name, pcie); + if (err < 0) { + dev_err(&pdev->dev, "failed to request IRQ: %d\n", err); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/hotplug/acpiphp_glue.c linux-libre-4.4.7-gnu/drivers/pci/hotplug/acpiphp_glue.c +--- linux-libre-4.4-gnu/drivers/pci/hotplug/acpiphp_glue.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/hotplug/acpiphp_glue.c 2016-04-12 12:09:26.000000000 -0400 +@@ -953,8 +953,10 @@ int acpiphp_enable_slot(struct acpiphp_s + { + pci_lock_rescan_remove(); + +- if (slot->flags & SLOT_IS_GOING_AWAY) ++ if (slot->flags & SLOT_IS_GOING_AWAY) { ++ pci_unlock_rescan_remove(); + return -ENODEV; ++ } + + /* configure all functions */ + if (!(slot->flags & SLOT_ENABLED)) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/pci.c linux-libre-4.4.7-gnu/drivers/pci/pci.c +--- linux-libre-4.4-gnu/drivers/pci/pci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/pci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -4772,8 +4772,10 @@ int pci_get_new_domain_nr(void) + void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent) + { + static int use_dt_domains = -1; +- int domain = of_get_pci_domain_nr(parent->of_node); ++ int domain = -1; + ++ if (parent) ++ domain = of_get_pci_domain_nr(parent->of_node); + /* + * Check DT domain and use_dt_domains values. + * +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/pcie/aer/aerdrv.c linux-libre-4.4.7-gnu/drivers/pci/pcie/aer/aerdrv.c +--- linux-libre-4.4-gnu/drivers/pci/pcie/aer/aerdrv.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/pcie/aer/aerdrv.c 2016-04-12 12:09:26.000000000 -0400 +@@ -262,7 +262,6 @@ static struct aer_rpc *aer_alloc_rpc(str + rpc->rpd = dev; + INIT_WORK(&rpc->dpc_handler, aer_isr); + mutex_init(&rpc->rpc_mutex); +- init_waitqueue_head(&rpc->wait_release); + + /* Use PCIe bus function to store rpc into PCIe device */ + set_service_data(dev, rpc); +@@ -285,8 +284,7 @@ static void aer_remove(struct pcie_devic + if (rpc->isr) + free_irq(dev->irq, dev); + +- wait_event(rpc->wait_release, rpc->prod_idx == rpc->cons_idx); +- ++ flush_work(&rpc->dpc_handler); + aer_disable_rootport(rpc); + kfree(rpc); + set_service_data(dev, NULL); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/pcie/aer/aerdrv_core.c linux-libre-4.4.7-gnu/drivers/pci/pcie/aer/aerdrv_core.c +--- linux-libre-4.4-gnu/drivers/pci/pcie/aer/aerdrv_core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/pcie/aer/aerdrv_core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -811,8 +811,6 @@ void aer_isr(struct work_struct *work) + while (get_e_source(rpc, &e_src)) + aer_isr_one_error(p_device, &e_src); + mutex_unlock(&rpc->rpc_mutex); +- +- wake_up(&rpc->wait_release); + } + + /** +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/pcie/aer/aerdrv.h linux-libre-4.4.7-gnu/drivers/pci/pcie/aer/aerdrv.h +--- linux-libre-4.4-gnu/drivers/pci/pcie/aer/aerdrv.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/pcie/aer/aerdrv.h 2016-04-12 12:09:26.000000000 -0400 +@@ -72,7 +72,6 @@ struct aer_rpc { + * recovery on the same + * root port hierarchy + */ +- wait_queue_head_t wait_release; + }; + + struct aer_broadcast_data { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/probe.c linux-libre-4.4.7-gnu/drivers/pci/probe.c +--- linux-libre-4.4-gnu/drivers/pci/probe.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/probe.c 2016-04-12 12:09:26.000000000 -0400 +@@ -179,6 +179,9 @@ int __pci_read_base(struct pci_dev *dev, + u16 orig_cmd; + struct pci_bus_region region, inverted_region; + ++ if (dev->non_compliant_bars) ++ return 0; ++ + mask = type ? PCI_ROM_ADDRESS_MASK : ~0; + + /* No printks while decoding is disabled! */ +@@ -1174,6 +1177,7 @@ void pci_msi_setup_pci_dev(struct pci_de + int pci_setup_device(struct pci_dev *dev) + { + u32 class; ++ u16 cmd; + u8 hdr_type; + int pos = 0; + struct pci_bus_region region; +@@ -1219,6 +1223,16 @@ int pci_setup_device(struct pci_dev *dev + /* device class may be changed after fixup */ + class = dev->class >> 8; + ++ if (dev->non_compliant_bars) { ++ pci_read_config_word(dev, PCI_COMMAND, &cmd); ++ if (cmd & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) { ++ dev_info(&dev->dev, "device has non-compliant BARs; disabling IO/MEM decoding\n"); ++ cmd &= ~PCI_COMMAND_IO; ++ cmd &= ~PCI_COMMAND_MEMORY; ++ pci_write_config_word(dev, PCI_COMMAND, cmd); ++ } ++ } ++ + switch (dev->hdr_type) { /* header type */ + case PCI_HEADER_TYPE_NORMAL: /* standard header */ + if (class == PCI_CLASS_BRIDGE_PCI) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/xen-pcifront.c linux-libre-4.4.7-gnu/drivers/pci/xen-pcifront.c +--- linux-libre-4.4-gnu/drivers/pci/xen-pcifront.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pci/xen-pcifront.c 2016-04-12 12:09:26.000000000 -0400 +@@ -53,7 +53,7 @@ struct pcifront_device { + }; + + struct pcifront_sd { +- int domain; ++ struct pci_sysdata sd; + struct pcifront_device *pdev; + }; + +@@ -67,7 +67,9 @@ static inline void pcifront_init_sd(stru + unsigned int domain, unsigned int bus, + struct pcifront_device *pdev) + { +- sd->domain = domain; ++ /* Because we do not expose that information via XenBus. */ ++ sd->sd.node = first_online_node; ++ sd->sd.domain = domain; + sd->pdev = pdev; + } + +@@ -468,8 +470,8 @@ static int pcifront_scan_root(struct pci + dev_info(&pdev->xdev->dev, "Creating PCI Frontend Bus %04x:%02x\n", + domain, bus); + +- bus_entry = kmalloc(sizeof(*bus_entry), GFP_KERNEL); +- sd = kmalloc(sizeof(*sd), GFP_KERNEL); ++ bus_entry = kzalloc(sizeof(*bus_entry), GFP_KERNEL); ++ sd = kzalloc(sizeof(*sd), GFP_KERNEL); + if (!bus_entry || !sd) { + err = -ENOMEM; + goto err_out; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/phy/phy-core.c linux-libre-4.4.7-gnu/drivers/phy/phy-core.c +--- linux-libre-4.4-gnu/drivers/phy/phy-core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/phy/phy-core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -275,20 +275,21 @@ EXPORT_SYMBOL_GPL(phy_exit); + + int phy_power_on(struct phy *phy) + { +- int ret; ++ int ret = 0; + + if (!phy) +- return 0; ++ goto out; + + if (phy->pwr) { + ret = regulator_enable(phy->pwr); + if (ret) +- return ret; ++ goto out; + } + + ret = phy_pm_runtime_get_sync(phy); + if (ret < 0 && ret != -ENOTSUPP) +- return ret; ++ goto err_pm_sync; ++ + ret = 0; /* Override possible ret == -ENOTSUPP */ + + mutex_lock(&phy->mutex); +@@ -296,19 +297,20 @@ int phy_power_on(struct phy *phy) + ret = phy->ops->power_on(phy); + if (ret < 0) { + dev_err(&phy->dev, "phy poweron failed --> %d\n", ret); +- goto out; ++ goto err_pwr_on; + } + } + ++phy->power_count; + mutex_unlock(&phy->mutex); + return 0; + +-out: ++err_pwr_on: + mutex_unlock(&phy->mutex); + phy_pm_runtime_put_sync(phy); ++err_pm_sync: + if (phy->pwr) + regulator_disable(phy->pwr); +- ++out: + return ret; + } + EXPORT_SYMBOL_GPL(phy_power_on); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/phy/phy-twl4030-usb.c linux-libre-4.4.7-gnu/drivers/phy/phy-twl4030-usb.c +--- linux-libre-4.4-gnu/drivers/phy/phy-twl4030-usb.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/phy/phy-twl4030-usb.c 2016-04-12 12:09:26.000000000 -0400 +@@ -715,6 +715,7 @@ static int twl4030_usb_probe(struct plat + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_set_autosuspend_delay(&pdev->dev, 2000); + pm_runtime_enable(&pdev->dev); ++ pm_runtime_get_sync(&pdev->dev); + + /* Our job is to use irqs and status from the power module + * to keep the transceiver disabled when nothing's connected. +@@ -750,6 +751,7 @@ static int twl4030_usb_remove(struct pla + struct twl4030_usb *twl = platform_get_drvdata(pdev); + int val; + ++ usb_remove_phy(&twl->phy); + pm_runtime_get_sync(twl->dev); + cancel_delayed_work(&twl->id_workaround_work); + device_remove_file(twl->dev, &dev_attr_vbus); +@@ -757,6 +759,13 @@ static int twl4030_usb_remove(struct pla + /* set transceiver mode to power on defaults */ + twl4030_usb_set_mode(twl, -1); + ++ /* idle ulpi before powering off */ ++ if (cable_present(twl->linkstat)) ++ pm_runtime_put_noidle(twl->dev); ++ pm_runtime_mark_last_busy(twl->dev); ++ pm_runtime_put_sync_suspend(twl->dev); ++ pm_runtime_disable(twl->dev); ++ + /* autogate 60MHz ULPI clock, + * clear dpll clock request for i2c access, + * disable 32KHz +@@ -771,11 +780,6 @@ static int twl4030_usb_remove(struct pla + /* disable complete OTG block */ + twl4030_usb_clear_bits(twl, POWER_CTRL, POWER_CTRL_OTG_ENAB); + +- if (cable_present(twl->linkstat)) +- pm_runtime_put_noidle(twl->dev); +- pm_runtime_mark_last_busy(twl->dev); +- pm_runtime_put(twl->dev); +- + return 0; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/bcm/pinctrl-bcm2835.c linux-libre-4.4.7-gnu/drivers/pinctrl/bcm/pinctrl-bcm2835.c +--- linux-libre-4.4-gnu/drivers/pinctrl/bcm/pinctrl-bcm2835.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/pinctrl/bcm/pinctrl-bcm2835.c 2016-04-12 12:09:26.000000000 -0400 +@@ -779,7 +779,7 @@ static int bcm2835_pctl_dt_node_to_map(s + } + if (num_pulls) { + err = of_property_read_u32_index(np, "brcm,pull", +- (num_funcs > 1) ? i : 0, &pull); ++ (num_pulls > 1) ? i : 0, &pull); + if (err) + goto out; + err = bcm2835_pctl_dt_node_to_map_pull(pc, np, pin, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/x86/ideapad-laptop.c linux-libre-4.4.7-gnu/drivers/platform/x86/ideapad-laptop.c +--- linux-libre-4.4-gnu/drivers/platform/x86/ideapad-laptop.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/platform/x86/ideapad-laptop.c 2016-04-12 12:09:26.000000000 -0400 +@@ -865,6 +865,27 @@ static const struct dmi_system_id no_hw_ + }, + }, + { ++ .ident = "Lenovo ideapad Y700-15ISK", ++ .matches = { ++ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), ++ DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700-15ISK"), ++ }, ++ }, ++ { ++ .ident = "Lenovo ideapad Y700 Touch-15ISK", ++ .matches = { ++ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), ++ DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700 Touch-15ISK"), ++ }, ++ }, ++ { ++ .ident = "Lenovo ideapad Y700-17ISK", ++ .matches = { ++ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), ++ DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700-17ISK"), ++ }, ++ }, ++ { + .ident = "Lenovo Yoga 2 11 / 13 / Pro", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), +@@ -893,6 +914,13 @@ static const struct dmi_system_id no_hw_ + }, + }, + { ++ .ident = "Lenovo Yoga 700", ++ .matches = { ++ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), ++ DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 700"), ++ }, ++ }, ++ { + .ident = "Lenovo Yoga 900", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/x86/intel_scu_ipcutil.c linux-libre-4.4.7-gnu/drivers/platform/x86/intel_scu_ipcutil.c +--- linux-libre-4.4-gnu/drivers/platform/x86/intel_scu_ipcutil.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/platform/x86/intel_scu_ipcutil.c 2016-04-12 12:09:26.000000000 -0400 +@@ -49,7 +49,7 @@ struct scu_ipc_data { + + static int scu_reg_access(u32 cmd, struct scu_ipc_data *data) + { +- int count = data->count; ++ unsigned int count = data->count; + + if (count == 0 || count == 3 || count > 4) + return -EINVAL; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/x86/toshiba_acpi.c linux-libre-4.4.7-gnu/drivers/platform/x86/toshiba_acpi.c +--- linux-libre-4.4-gnu/drivers/platform/x86/toshiba_acpi.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/platform/x86/toshiba_acpi.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2484,6 +2484,14 @@ static int toshiba_acpi_setup_backlight( + brightness = __get_lcd_brightness(dev); + if (brightness < 0) + return 0; ++ /* ++ * If transflective backlight is supported and the brightness is zero ++ * (lowest brightness level), the set_lcd_brightness function will ++ * activate the transflective backlight, making the LCD appear to be ++ * turned off, simply increment the brightness level to avoid that. ++ */ ++ if (dev->tr_backlight_supported && brightness == 0) ++ brightness++; + ret = set_lcd_brightness(dev, brightness); + if (ret) { + pr_debug("Backlight method is read-only, disabling backlight support\n"); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/axp20x-regulator.c linux-libre-4.4.7-gnu/drivers/regulator/axp20x-regulator.c +--- linux-libre-4.4-gnu/drivers/regulator/axp20x-regulator.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/regulator/axp20x-regulator.c 2016-04-12 12:09:26.000000000 -0400 +@@ -27,8 +27,8 @@ + #define AXP20X_IO_ENABLED 0x03 + #define AXP20X_IO_DISABLED 0x07 + +-#define AXP22X_IO_ENABLED 0x04 +-#define AXP22X_IO_DISABLED 0x03 ++#define AXP22X_IO_ENABLED 0x03 ++#define AXP22X_IO_DISABLED 0x04 + + #define AXP20X_WORKMODE_DCDC2_MASK BIT(2) + #define AXP20X_WORKMODE_DCDC3_MASK BIT(1) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/core.c linux-libre-4.4.7-gnu/drivers/regulator/core.c +--- linux-libre-4.4-gnu/drivers/regulator/core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/regulator/core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -132,24 +132,24 @@ static bool have_full_constraints(void) + return has_full_constraints || of_have_populated_dt(); + } + ++static inline struct regulator_dev *rdev_get_supply(struct regulator_dev *rdev) ++{ ++ if (rdev && rdev->supply) ++ return rdev->supply->rdev; ++ ++ return NULL; ++} ++ + /** + * regulator_lock_supply - lock a regulator and its supplies + * @rdev: regulator source + */ + static void regulator_lock_supply(struct regulator_dev *rdev) + { +- struct regulator *supply; +- int i = 0; +- +- while (1) { +- mutex_lock_nested(&rdev->mutex, i++); +- supply = rdev->supply; +- +- if (!rdev->supply) +- return; ++ int i; + +- rdev = supply->rdev; +- } ++ for (i = 0; rdev->supply; rdev = rdev_get_supply(rdev), i++) ++ mutex_lock_nested(&rdev->mutex, i); + } + + /** +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/Kconfig linux-libre-4.4.7-gnu/drivers/regulator/Kconfig +--- linux-libre-4.4-gnu/drivers/regulator/Kconfig 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/regulator/Kconfig 2016-04-12 12:09:26.000000000 -0400 +@@ -446,6 +446,7 @@ config REGULATOR_MC13892 + config REGULATOR_MT6311 + tristate "MediaTek MT6311 PMIC" + depends on I2C ++ select REGMAP_I2C + help + Say y here to select this option to enable the power regulator of + MediaTek MT6311 PMIC. +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/block/dasd_alias.c linux-libre-4.4.7-gnu/drivers/s390/block/dasd_alias.c +--- linux-libre-4.4-gnu/drivers/s390/block/dasd_alias.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/s390/block/dasd_alias.c 2016-04-12 12:09:26.000000000 -0400 +@@ -264,8 +264,10 @@ void dasd_alias_disconnect_device_from_l + spin_unlock_irqrestore(&lcu->lock, flags); + cancel_work_sync(&lcu->suc_data.worker); + spin_lock_irqsave(&lcu->lock, flags); +- if (device == lcu->suc_data.device) ++ if (device == lcu->suc_data.device) { ++ dasd_put_device(device); + lcu->suc_data.device = NULL; ++ } + } + was_pending = 0; + if (device == lcu->ruac_data.device) { +@@ -273,8 +275,10 @@ void dasd_alias_disconnect_device_from_l + was_pending = 1; + cancel_delayed_work_sync(&lcu->ruac_data.dwork); + spin_lock_irqsave(&lcu->lock, flags); +- if (device == lcu->ruac_data.device) ++ if (device == lcu->ruac_data.device) { ++ dasd_put_device(device); + lcu->ruac_data.device = NULL; ++ } + } + private->lcu = NULL; + spin_unlock_irqrestore(&lcu->lock, flags); +@@ -549,8 +553,10 @@ static void lcu_update_work(struct work_ + if ((rc && (rc != -EOPNOTSUPP)) || (lcu->flags & NEED_UAC_UPDATE)) { + DBF_DEV_EVENT(DBF_WARNING, device, "could not update" + " alias data in lcu (rc = %d), retry later", rc); +- schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ); ++ if (!schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ)) ++ dasd_put_device(device); + } else { ++ dasd_put_device(device); + lcu->ruac_data.device = NULL; + lcu->flags &= ~UPDATE_PENDING; + } +@@ -593,8 +599,10 @@ static int _schedule_lcu_update(struct a + */ + if (!usedev) + return -EINVAL; ++ dasd_get_device(usedev); + lcu->ruac_data.device = usedev; +- schedule_delayed_work(&lcu->ruac_data.dwork, 0); ++ if (!schedule_delayed_work(&lcu->ruac_data.dwork, 0)) ++ dasd_put_device(usedev); + return 0; + } + +@@ -723,7 +731,7 @@ static int reset_summary_unit_check(stru + ASCEBC((char *) &cqr->magic, 4); + ccw = cqr->cpaddr; + ccw->cmd_code = DASD_ECKD_CCW_RSCK; +- ccw->flags = 0 ; ++ ccw->flags = CCW_FLAG_SLI; + ccw->count = 16; + ccw->cda = (__u32)(addr_t) cqr->data; + ((char *)cqr->data)[0] = reason; +@@ -930,6 +938,7 @@ static void summary_unit_check_handling_ + /* 3. read new alias configuration */ + _schedule_lcu_update(lcu, device); + lcu->suc_data.device = NULL; ++ dasd_put_device(device); + spin_unlock_irqrestore(&lcu->lock, flags); + } + +@@ -989,6 +998,8 @@ void dasd_alias_handle_summary_unit_chec + } + lcu->suc_data.reason = reason; + lcu->suc_data.device = device; ++ dasd_get_device(device); + spin_unlock(&lcu->lock); +- schedule_work(&lcu->suc_data.worker); ++ if (!schedule_work(&lcu->suc_data.worker)) ++ dasd_put_device(device); + }; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/block/dasd.c linux-libre-4.4.7-gnu/drivers/s390/block/dasd.c +--- linux-libre-4.4-gnu/drivers/s390/block/dasd.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/s390/block/dasd.c 2016-04-12 12:09:26.000000000 -0400 +@@ -3031,6 +3031,7 @@ static void dasd_setup_queue(struct dasd + max = block->base->discipline->max_blocks << block->s2b_shift; + } + queue_flag_set_unlocked(QUEUE_FLAG_NONROT, block->request_queue); ++ block->request_queue->limits.max_dev_sectors = max; + blk_queue_logical_block_size(block->request_queue, + block->bp_block); + blk_queue_max_hw_sectors(block->request_queue, max); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/block/dasd_diag.c linux-libre-4.4.7-gnu/drivers/s390/block/dasd_diag.c +--- linux-libre-4.4-gnu/drivers/s390/block/dasd_diag.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/s390/block/dasd_diag.c 2016-04-12 12:09:26.000000000 -0400 +@@ -67,7 +67,7 @@ static const u8 DASD_DIAG_CMS1[] = { 0xc + * and function code cmd. + * In case of an exception return 3. Otherwise return result of bitwise OR of + * resulting condition code and DIAG return code. */ +-static inline int dia250(void *iob, int cmd) ++static inline int __dia250(void *iob, int cmd) + { + register unsigned long reg2 asm ("2") = (unsigned long) iob; + typedef union { +@@ -77,7 +77,6 @@ static inline int dia250(void *iob, int + int rc; + + rc = 3; +- diag_stat_inc(DIAG_STAT_X250); + asm volatile( + " diag 2,%2,0x250\n" + "0: ipm %0\n" +@@ -91,6 +90,12 @@ static inline int dia250(void *iob, int + return rc; + } + ++static inline int dia250(void *iob, int cmd) ++{ ++ diag_stat_inc(DIAG_STAT_X250); ++ return __dia250(iob, cmd); ++} ++ + /* Initialize block I/O to DIAG device using the specified blocksize and + * block offset. On success, return zero and set end_block to contain the + * number of blocks on the device minus the specified offset. Return non-zero +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/aacraid/aacraid.h linux-libre-4.4.7-gnu/drivers/scsi/aacraid/aacraid.h +--- linux-libre-4.4-gnu/drivers/scsi/aacraid/aacraid.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/aacraid/aacraid.h 2016-04-12 12:09:26.000000000 -0400 +@@ -944,6 +944,7 @@ struct fib { + */ + struct list_head fiblink; + void *data; ++ u32 vector_no; + struct hw_fib *hw_fib_va; /* Actual shared object */ + dma_addr_t hw_fib_pa; /* physical address of hw_fib*/ + }; +@@ -2113,6 +2114,7 @@ static inline unsigned int cap_to_cyls(s + int aac_acquire_irq(struct aac_dev *dev); + void aac_free_irq(struct aac_dev *dev); + const char *aac_driverinfo(struct Scsi_Host *); ++void aac_fib_vector_assign(struct aac_dev *dev); + struct fib *aac_fib_alloc(struct aac_dev *dev); + int aac_fib_setup(struct aac_dev *dev); + void aac_fib_map_free(struct aac_dev *dev); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/aacraid/commsup.c linux-libre-4.4.7-gnu/drivers/scsi/aacraid/commsup.c +--- linux-libre-4.4-gnu/drivers/scsi/aacraid/commsup.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/aacraid/commsup.c 2016-04-12 12:09:26.000000000 -0400 +@@ -83,13 +83,38 @@ static int fib_map_alloc(struct aac_dev + + void aac_fib_map_free(struct aac_dev *dev) + { +- pci_free_consistent(dev->pdev, +- dev->max_fib_size * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB), +- dev->hw_fib_va, dev->hw_fib_pa); ++ if (dev->hw_fib_va && dev->max_fib_size) { ++ pci_free_consistent(dev->pdev, ++ (dev->max_fib_size * ++ (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB)), ++ dev->hw_fib_va, dev->hw_fib_pa); ++ } + dev->hw_fib_va = NULL; + dev->hw_fib_pa = 0; + } + ++void aac_fib_vector_assign(struct aac_dev *dev) ++{ ++ u32 i = 0; ++ u32 vector = 1; ++ struct fib *fibptr = NULL; ++ ++ for (i = 0, fibptr = &dev->fibs[i]; ++ i < (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); ++ i++, fibptr++) { ++ if ((dev->max_msix == 1) || ++ (i > ((dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB - 1) ++ - dev->vector_cap))) { ++ fibptr->vector_no = 0; ++ } else { ++ fibptr->vector_no = vector; ++ vector++; ++ if (vector == dev->max_msix) ++ vector = 1; ++ } ++ } ++} ++ + /** + * aac_fib_setup - setup the fibs + * @dev: Adapter to set up +@@ -151,6 +176,12 @@ int aac_fib_setup(struct aac_dev * dev) + hw_fib_pa = hw_fib_pa + + dev->max_fib_size + sizeof(struct aac_fib_xporthdr); + } ++ ++ /* ++ *Assign vector numbers to fibs ++ */ ++ aac_fib_vector_assign(dev); ++ + /* + * Add the fib chain to the free list + */ +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/aacraid/linit.c linux-libre-4.4.7-gnu/drivers/scsi/aacraid/linit.c +--- linux-libre-4.4-gnu/drivers/scsi/aacraid/linit.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/aacraid/linit.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1404,8 +1404,18 @@ static int aac_acquire_resources(struct + + aac_adapter_enable_int(dev); + +- if (!dev->sync_mode) ++ /*max msix may change after EEH ++ * Re-assign vectors to fibs ++ */ ++ aac_fib_vector_assign(dev); ++ ++ if (!dev->sync_mode) { ++ /* After EEH recovery or suspend resume, max_msix count ++ * may change, therfore updating in init as well. ++ */ + aac_adapter_start(dev); ++ dev->init->Sa_MSIXVectors = cpu_to_le32(dev->max_msix); ++ } + return 0; + + error_iounmap: +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/aacraid/src.c linux-libre-4.4.7-gnu/drivers/scsi/aacraid/src.c +--- linux-libre-4.4-gnu/drivers/scsi/aacraid/src.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/aacraid/src.c 2016-04-12 12:09:26.000000000 -0400 +@@ -156,8 +156,8 @@ static irqreturn_t aac_src_intr_message( + break; + if (dev->msi_enabled && dev->max_msix > 1) + atomic_dec(&dev->rrq_outstanding[vector_no]); +- aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL); + dev->host_rrq[index++] = 0; ++ aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL); + if (index == (vector_no + 1) * dev->vector_cap) + index = vector_no * dev->vector_cap; + dev->host_rrq_idx[vector_no] = index; +@@ -452,36 +452,20 @@ static int aac_src_deliver_message(struc + #endif + + u16 hdr_size = le16_to_cpu(fib->hw_fib_va->header.Size); ++ u16 vector_no; + + atomic_inc(&q->numpending); + + if (dev->msi_enabled && fib->hw_fib_va->header.Command != AifRequest && + dev->max_msix > 1) { +- u_int16_t vector_no, first_choice = 0xffff; +- +- vector_no = dev->fibs_pushed_no % dev->max_msix; +- do { +- vector_no += 1; +- if (vector_no == dev->max_msix) +- vector_no = 1; +- if (atomic_read(&dev->rrq_outstanding[vector_no]) < +- dev->vector_cap) +- break; +- if (0xffff == first_choice) +- first_choice = vector_no; +- else if (vector_no == first_choice) +- break; +- } while (1); +- if (vector_no == first_choice) +- vector_no = 0; +- atomic_inc(&dev->rrq_outstanding[vector_no]); +- if (dev->fibs_pushed_no == 0xffffffff) +- dev->fibs_pushed_no = 0; +- else +- dev->fibs_pushed_no++; ++ vector_no = fib->vector_no; + fib->hw_fib_va->header.Handle += (vector_no << 16); ++ } else { ++ vector_no = 0; + } + ++ atomic_inc(&dev->rrq_outstanding[vector_no]); ++ + if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) { + /* Calculate the amount to the fibsize bits */ + fibsize = (hdr_size + 127) / 128 - 1; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/aic7xxx/aic7xxx_osm.c linux-libre-4.4.7-gnu/drivers/scsi/aic7xxx/aic7xxx_osm.c +--- linux-libre-4.4-gnu/drivers/scsi/aic7xxx/aic7xxx_osm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/aic7xxx/aic7xxx_osm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1336,6 +1336,7 @@ ahc_platform_set_tags(struct ahc_softc * + case AHC_DEV_Q_TAGGED: + scsi_change_queue_depth(sdev, + dev->openings + dev->active); ++ break; + default: + /* + * We allow the OS to queue 2 untagged transactions to +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/be2iscsi/be_main.c linux-libre-4.4.7-gnu/drivers/scsi/be2iscsi/be_main.c +--- linux-libre-4.4-gnu/drivers/scsi/be2iscsi/be_main.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/be2iscsi/be_main.c 2016-04-12 12:09:26.000000000 -0400 +@@ -4470,6 +4470,7 @@ put_shost: + scsi_host_put(phba->shost); + free_kset: + iscsi_boot_destroy_kset(phba->boot_kset); ++ phba->boot_kset = NULL; + return -ENOMEM; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/device_handler/scsi_dh_rdac.c linux-libre-4.4.7-gnu/drivers/scsi/device_handler/scsi_dh_rdac.c +--- linux-libre-4.4-gnu/drivers/scsi/device_handler/scsi_dh_rdac.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/device_handler/scsi_dh_rdac.c 2016-04-12 12:09:26.000000000 -0400 +@@ -562,7 +562,7 @@ static int mode_select_handle_sense(stru + /* + * Command Lock contention + */ +- err = SCSI_DH_RETRY; ++ err = SCSI_DH_IMM_RETRY; + break; + default: + break; +@@ -612,6 +612,8 @@ retry: + err = mode_select_handle_sense(sdev, h->sense); + if (err == SCSI_DH_RETRY && retry_cnt--) + goto retry; ++ if (err == SCSI_DH_IMM_RETRY) ++ goto retry; + } + if (err == SCSI_DH_OK) { + h->state = RDAC_STATE_ACTIVE; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/ipr.c linux-libre-4.4.7-gnu/drivers/scsi/ipr.c +--- linux-libre-4.4-gnu/drivers/scsi/ipr.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/ipr.c 2016-04-12 12:09:26.000000000 -0400 +@@ -4003,13 +4003,17 @@ static ssize_t ipr_store_update_fw(struc + struct ipr_sglist *sglist; + char fname[100]; + char *src; +- int len, result, dnld_size; ++ char *endline; ++ int result, dnld_size; + + if (!capable(CAP_SYS_ADMIN)) + return -EACCES; + +- len = snprintf(fname, 99, "%s", buf); +- fname[len-1] = '\0'; ++ snprintf(fname, sizeof(fname), "%s", buf); ++ ++ endline = strchr(fname, '\n'); ++ if (endline) ++ *endline = '\0'; + + if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { + dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_init.c linux-libre-4.4.7-gnu/drivers/scsi/qla2xxx/qla_init.c +--- linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_init.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/qla2xxx/qla_init.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2192,7 +2192,7 @@ qla2x00_init_rings(scsi_qla_host_t *vha) + /* Clear outstanding commands array. */ + for (que = 0; que < ha->max_req_queues; que++) { + req = ha->req_q_map[que]; +- if (!req) ++ if (!req || !test_bit(que, ha->req_qid_map)) + continue; + req->out_ptr = (void *)(req->ring + req->length); + *req->out_ptr = 0; +@@ -2209,7 +2209,7 @@ qla2x00_init_rings(scsi_qla_host_t *vha) + + for (que = 0; que < ha->max_rsp_queues; que++) { + rsp = ha->rsp_q_map[que]; +- if (!rsp) ++ if (!rsp || !test_bit(que, ha->rsp_qid_map)) + continue; + rsp->in_ptr = (void *)(rsp->ring + rsp->length); + *rsp->in_ptr = 0; +@@ -4961,7 +4961,7 @@ qla25xx_init_queues(struct qla_hw_data * + + for (i = 1; i < ha->max_rsp_queues; i++) { + rsp = ha->rsp_q_map[i]; +- if (rsp) { ++ if (rsp && test_bit(i, ha->rsp_qid_map)) { + rsp->options &= ~BIT_0; + ret = qla25xx_init_rsp_que(base_vha, rsp); + if (ret != QLA_SUCCESS) +@@ -4976,8 +4976,8 @@ qla25xx_init_queues(struct qla_hw_data * + } + for (i = 1; i < ha->max_req_queues; i++) { + req = ha->req_q_map[i]; +- if (req) { +- /* Clear outstanding commands array. */ ++ if (req && test_bit(i, ha->req_qid_map)) { ++ /* Clear outstanding commands array. */ + req->options &= ~BIT_0; + ret = qla25xx_init_req_que(base_vha, req); + if (ret != QLA_SUCCESS) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_isr.c linux-libre-4.4.7-gnu/drivers/scsi/qla2xxx/qla_isr.c +--- linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_isr.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/qla2xxx/qla_isr.c 2016-04-12 12:09:26.000000000 -0400 +@@ -3018,9 +3018,9 @@ qla24xx_enable_msix(struct qla_hw_data * + "MSI-X: Failed to enable support " + "-- %d/%d\n Retry with %d vectors.\n", + ha->msix_count, ret, ret); ++ ha->msix_count = ret; ++ ha->max_rsp_queues = ha->msix_count - 1; + } +- ha->msix_count = ret; +- ha->max_rsp_queues = ha->msix_count - 1; + ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) * + ha->msix_count, GFP_KERNEL); + if (!ha->msix_entries) { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_mid.c linux-libre-4.4.7-gnu/drivers/scsi/qla2xxx/qla_mid.c +--- linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_mid.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/qla2xxx/qla_mid.c 2016-04-12 12:09:26.000000000 -0400 +@@ -600,7 +600,7 @@ qla25xx_delete_queues(struct scsi_qla_ho + /* Delete request queues */ + for (cnt = 1; cnt < ha->max_req_queues; cnt++) { + req = ha->req_q_map[cnt]; +- if (req) { ++ if (req && test_bit(cnt, ha->req_qid_map)) { + ret = qla25xx_delete_req_que(vha, req); + if (ret != QLA_SUCCESS) { + ql_log(ql_log_warn, vha, 0x00ea, +@@ -614,7 +614,7 @@ qla25xx_delete_queues(struct scsi_qla_ho + /* Delete response queues */ + for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) { + rsp = ha->rsp_q_map[cnt]; +- if (rsp) { ++ if (rsp && test_bit(cnt, ha->rsp_qid_map)) { + ret = qla25xx_delete_rsp_que(vha, rsp); + if (ret != QLA_SUCCESS) { + ql_log(ql_log_warn, vha, 0x00eb, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_os.c linux-libre-4.4.7-gnu/drivers/scsi/qla2xxx/qla_os.c +--- linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_os.c 2016-01-10 21:14:18.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/qla2xxx/qla_os.c 2016-04-12 21:30:38.000000000 -0400 +@@ -397,6 +397,9 @@ static void qla2x00_free_queues(struct q + int cnt; + + for (cnt = 0; cnt < ha->max_req_queues; cnt++) { ++ if (!test_bit(cnt, ha->req_qid_map)) ++ continue; ++ + req = ha->req_q_map[cnt]; + qla2x00_free_req_que(ha, req); + } +@@ -404,6 +407,9 @@ static void qla2x00_free_queues(struct q + ha->req_q_map = NULL; + + for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) { ++ if (!test_bit(cnt, ha->rsp_qid_map)) ++ continue; ++ + rsp = ha->rsp_q_map[cnt]; + qla2x00_free_rsp_que(ha, rsp); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_tmpl.c linux-libre-4.4.7-gnu/drivers/scsi/qla2xxx/qla_tmpl.c +--- linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_tmpl.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/qla2xxx/qla_tmpl.c 2016-04-12 12:09:26.000000000 -0400 +@@ -395,6 +395,10 @@ qla27xx_fwdt_entry_t263(struct scsi_qla_ + if (ent->t263.queue_type == T263_QUEUE_TYPE_REQ) { + for (i = 0; i < vha->hw->max_req_queues; i++) { + struct req_que *req = vha->hw->req_q_map[i]; ++ ++ if (!test_bit(i, vha->hw->req_qid_map)) ++ continue; ++ + if (req || !buf) { + length = req ? + req->length : REQUEST_ENTRY_CNT_24XX; +@@ -408,6 +412,10 @@ qla27xx_fwdt_entry_t263(struct scsi_qla_ + } else if (ent->t263.queue_type == T263_QUEUE_TYPE_RSP) { + for (i = 0; i < vha->hw->max_rsp_queues; i++) { + struct rsp_que *rsp = vha->hw->rsp_q_map[i]; ++ ++ if (!test_bit(i, vha->hw->rsp_qid_map)) ++ continue; ++ + if (rsp || !buf) { + length = rsp ? + rsp->length : RESPONSE_ENTRY_CNT_MQ; +@@ -634,6 +642,10 @@ qla27xx_fwdt_entry_t274(struct scsi_qla_ + if (ent->t274.queue_type == T274_QUEUE_TYPE_REQ_SHAD) { + for (i = 0; i < vha->hw->max_req_queues; i++) { + struct req_que *req = vha->hw->req_q_map[i]; ++ ++ if (!test_bit(i, vha->hw->req_qid_map)) ++ continue; ++ + if (req || !buf) { + qla27xx_insert16(i, buf, len); + qla27xx_insert16(1, buf, len); +@@ -645,6 +657,10 @@ qla27xx_fwdt_entry_t274(struct scsi_qla_ + } else if (ent->t274.queue_type == T274_QUEUE_TYPE_RSP_SHAD) { + for (i = 0; i < vha->hw->max_rsp_queues; i++) { + struct rsp_que *rsp = vha->hw->rsp_q_map[i]; ++ ++ if (!test_bit(i, vha->hw->rsp_qid_map)) ++ continue; ++ + if (rsp || !buf) { + qla27xx_insert16(i, buf, len); + qla27xx_insert16(1, buf, len); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/scsi_common.c linux-libre-4.4.7-gnu/drivers/scsi/scsi_common.c +--- linux-libre-4.4-gnu/drivers/scsi/scsi_common.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/scsi_common.c 2016-04-12 12:09:26.000000000 -0400 +@@ -278,8 +278,16 @@ int scsi_set_sense_information(u8 *buf, + ucp[3] = 0; + put_unaligned_be64(info, &ucp[4]); + } else if ((buf[0] & 0x7f) == 0x70) { +- buf[0] |= 0x80; +- put_unaligned_be64(info, &buf[3]); ++ /* ++ * Only set the 'VALID' bit if we can represent the value ++ * correctly; otherwise just fill out the lower bytes and ++ * clear the 'VALID' flag. ++ */ ++ if (info <= 0xffffffffUL) ++ buf[0] |= 0x80; ++ else ++ buf[0] &= 0x7f; ++ put_unaligned_be32((u32)info, &buf[3]); + } + + return 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/scsi_devinfo.c linux-libre-4.4.7-gnu/drivers/scsi/scsi_devinfo.c +--- linux-libre-4.4-gnu/drivers/scsi/scsi_devinfo.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/scsi_devinfo.c 2016-04-12 12:09:26.000000000 -0400 +@@ -205,6 +205,7 @@ static struct { + {"Intel", "Multi-Flex", NULL, BLIST_NO_RSOC}, + {"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36}, + {"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN}, ++ {"Marvell", "Console", NULL, BLIST_SKIP_VPD_PAGES}, + {"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, + {"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36}, + {"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36}, +@@ -227,6 +228,7 @@ static struct { + {"Promise", "VTrak E610f", NULL, BLIST_SPARSELUN | BLIST_NO_RSOC}, + {"Promise", "", NULL, BLIST_SPARSELUN}, + {"QNAP", "iSCSI Storage", NULL, BLIST_MAX_1024}, ++ {"SYNOLOGY", "iSCSI Storage", NULL, BLIST_MAX_1024}, + {"QUANTUM", "XP34301", "1071", BLIST_NOTQ}, + {"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN}, + {"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN}, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/scsi_sysfs.c linux-libre-4.4.7-gnu/drivers/scsi/scsi_sysfs.c +--- linux-libre-4.4-gnu/drivers/scsi/scsi_sysfs.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/scsi_sysfs.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1192,16 +1192,18 @@ static void __scsi_remove_target(struct + void scsi_remove_target(struct device *dev) + { + struct Scsi_Host *shost = dev_to_shost(dev->parent); +- struct scsi_target *starget; ++ struct scsi_target *starget, *last_target = NULL; + unsigned long flags; + + restart: + spin_lock_irqsave(shost->host_lock, flags); + list_for_each_entry(starget, &shost->__targets, siblings) { +- if (starget->state == STARGET_DEL) ++ if (starget->state == STARGET_DEL || ++ starget == last_target) + continue; + if (starget->dev.parent == dev || &starget->dev == dev) { + kref_get(&starget->reap_ref); ++ last_target = starget; + spin_unlock_irqrestore(shost->host_lock, flags); + __scsi_remove_target(starget); + scsi_target_reap(starget); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/sd.c linux-libre-4.4.7-gnu/drivers/scsi/sd.c +--- linux-libre-4.4-gnu/drivers/scsi/sd.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/sd.c 2016-04-12 12:09:26.000000000 -0400 +@@ -648,7 +648,7 @@ static void sd_config_discard(struct scs + */ + if (sdkp->lbprz) { + q->limits.discard_alignment = 0; +- q->limits.discard_granularity = 1; ++ q->limits.discard_granularity = logical_block_size; + } else { + q->limits.discard_alignment = sdkp->unmap_alignment * + logical_block_size; +@@ -2893,7 +2893,7 @@ static int sd_revalidate_disk(struct gen + sdkp->opt_xfer_blocks <= SD_DEF_XFER_BLOCKS && + sdkp->opt_xfer_blocks * sdp->sector_size >= PAGE_CACHE_SIZE) + rw_max = q->limits.io_opt = +- logical_to_sectors(sdp, sdkp->opt_xfer_blocks); ++ sdkp->opt_xfer_blocks * sdp->sector_size; + else + rw_max = BLK_DEF_MAX_SECTORS; + +@@ -3268,8 +3268,8 @@ static int sd_suspend_common(struct devi + struct scsi_disk *sdkp = dev_get_drvdata(dev); + int ret = 0; + +- if (!sdkp) +- return 0; /* this can happen */ ++ if (!sdkp) /* E.g.: runtime suspend following sd_remove() */ ++ return 0; + + if (sdkp->WCE && sdkp->media_present) { + sd_printk(KERN_NOTICE, sdkp, "Synchronizing SCSI cache\n"); +@@ -3308,6 +3308,9 @@ static int sd_resume(struct device *dev) + { + struct scsi_disk *sdkp = dev_get_drvdata(dev); + ++ if (!sdkp) /* E.g.: runtime resume at the start of sd_probe() */ ++ return 0; ++ + if (!sdkp->device->manage_start_stop) + return 0; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/sg.c linux-libre-4.4.7-gnu/drivers/scsi/sg.c +--- linux-libre-4.4-gnu/drivers/scsi/sg.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/sg.c 2016-04-12 12:09:26.000000000 -0400 +@@ -652,7 +652,8 @@ sg_write(struct file *filp, const char _ + else + hp->dxfer_direction = (mxsize > 0) ? SG_DXFER_FROM_DEV : SG_DXFER_NONE; + hp->dxfer_len = mxsize; +- if (hp->dxfer_direction == SG_DXFER_TO_DEV) ++ if ((hp->dxfer_direction == SG_DXFER_TO_DEV) || ++ (hp->dxfer_direction == SG_DXFER_TO_FROM_DEV)) + hp->dxferp = (char __user *)buf + cmd_size; + else + hp->dxferp = NULL; +@@ -1261,7 +1262,7 @@ sg_mmap(struct file *filp, struct vm_are + } + + sfp->mmap_called = 1; +- vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; ++ vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; + vma->vm_private_data = sfp; + vma->vm_ops = &sg_mmap_vm_ops; + return 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/sr.c linux-libre-4.4.7-gnu/drivers/scsi/sr.c +--- linux-libre-4.4-gnu/drivers/scsi/sr.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/sr.c 2016-04-12 12:09:26.000000000 -0400 +@@ -144,6 +144,9 @@ static int sr_runtime_suspend(struct dev + { + struct scsi_cd *cd = dev_get_drvdata(dev); + ++ if (!cd) /* E.g.: runtime suspend following sr_remove() */ ++ return 0; ++ + if (cd->media_present) + return -EBUSY; + else +@@ -985,6 +988,7 @@ static int sr_remove(struct device *dev) + scsi_autopm_get_device(cd->device); + + del_gendisk(cd->disk); ++ dev_set_drvdata(dev, NULL); + + mutex_lock(&sr_ref_mutex); + kref_put(&cd->kref, sr_kref_release); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/storvsc_drv.c linux-libre-4.4.7-gnu/drivers/scsi/storvsc_drv.c +--- linux-libre-4.4-gnu/drivers/scsi/storvsc_drv.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/scsi/storvsc_drv.c 2016-04-12 12:09:26.000000000 -0400 +@@ -889,8 +889,9 @@ static void storvsc_handle_error(struct + do_work = true; + process_err_fn = storvsc_remove_lun; + break; +- case (SRB_STATUS_ABORTED | SRB_STATUS_AUTOSENSE_VALID): +- if ((asc == 0x2a) && (ascq == 0x9)) { ++ case SRB_STATUS_ABORTED: ++ if (vm_srb->srb_status & SRB_STATUS_AUTOSENSE_VALID && ++ (asc == 0x2a) && (ascq == 0x9)) { + do_work = true; + process_err_fn = storvsc_device_scan; + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/sh/pm_runtime.c linux-libre-4.4.7-gnu/drivers/sh/pm_runtime.c +--- linux-libre-4.4-gnu/drivers/sh/pm_runtime.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/sh/pm_runtime.c 2016-04-12 12:09:26.000000000 -0400 +@@ -34,7 +34,7 @@ static struct pm_clk_notifier_block plat + + static int __init sh_pm_runtime_init(void) + { +- if (IS_ENABLED(CONFIG_ARCH_SHMOBILE)) { ++ if (IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_ARCH_SHMOBILE)) { + if (!of_find_compatible_node(NULL, NULL, + "renesas,cpg-mstp-clocks")) + return 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spi/spi-atmel.c linux-libre-4.4.7-gnu/drivers/spi/spi-atmel.c +--- linux-libre-4.4-gnu/drivers/spi/spi-atmel.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/spi/spi-atmel.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1571,6 +1571,7 @@ static int atmel_spi_probe(struct platfo + + as->use_cs_gpios = true; + if (atmel_spi_is_v2(as) && ++ pdev->dev.of_node && + !of_get_property(pdev->dev.of_node, "cs-gpios", NULL)) { + as->use_cs_gpios = false; + master->num_chipselect = 4; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spi/spi-omap2-mcspi.c linux-libre-4.4.7-gnu/drivers/spi/spi-omap2-mcspi.c +--- linux-libre-4.4-gnu/drivers/spi/spi-omap2-mcspi.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/spi/spi-omap2-mcspi.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1024,6 +1024,16 @@ static int omap2_mcspi_setup(struct spi_ + spi->controller_state = cs; + /* Link this to context save list */ + list_add_tail(&cs->node, &ctx->cs); ++ ++ if (gpio_is_valid(spi->cs_gpio)) { ++ ret = gpio_request(spi->cs_gpio, dev_name(&spi->dev)); ++ if (ret) { ++ dev_err(&spi->dev, "failed to request gpio\n"); ++ return ret; ++ } ++ gpio_direction_output(spi->cs_gpio, ++ !(spi->mode & SPI_CS_HIGH)); ++ } + } + + if (!mcspi_dma->dma_rx || !mcspi_dma->dma_tx) { +@@ -1032,15 +1042,6 @@ static int omap2_mcspi_setup(struct spi_ + return ret; + } + +- if (gpio_is_valid(spi->cs_gpio)) { +- ret = gpio_request(spi->cs_gpio, dev_name(&spi->dev)); +- if (ret) { +- dev_err(&spi->dev, "failed to request gpio\n"); +- return ret; +- } +- gpio_direction_output(spi->cs_gpio, !(spi->mode & SPI_CS_HIGH)); +- } +- + ret = pm_runtime_get_sync(mcspi->dev); + if (ret < 0) + return ret; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/android/ion/ion_test.c linux-libre-4.4.7-gnu/drivers/staging/android/ion/ion_test.c +--- linux-libre-4.4-gnu/drivers/staging/android/ion/ion_test.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/staging/android/ion/ion_test.c 2016-04-12 12:09:26.000000000 -0400 +@@ -285,8 +285,8 @@ static int __init ion_test_init(void) + { + ion_test_pdev = platform_device_register_simple("ion-test", + -1, NULL, 0); +- if (!ion_test_pdev) +- return -ENODEV; ++ if (IS_ERR(ion_test_pdev)) ++ return PTR_ERR(ion_test_pdev); + + return platform_driver_probe(&ion_test_platform_driver, ion_test_probe); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/comedi/drivers/ni_mio_common.c linux-libre-4.4.7-gnu/drivers/staging/comedi/drivers/ni_mio_common.c +--- linux-libre-4.4-gnu/drivers/staging/comedi/drivers/ni_mio_common.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/staging/comedi/drivers/ni_mio_common.c 2016-04-12 12:09:26.000000000 -0400 +@@ -246,24 +246,24 @@ static void ni_writel(struct comedi_devi + { + if (dev->mmio) + writel(data, dev->mmio + reg); +- +- outl(data, dev->iobase + reg); ++ else ++ outl(data, dev->iobase + reg); + } + + static void ni_writew(struct comedi_device *dev, uint16_t data, int reg) + { + if (dev->mmio) + writew(data, dev->mmio + reg); +- +- outw(data, dev->iobase + reg); ++ else ++ outw(data, dev->iobase + reg); + } + + static void ni_writeb(struct comedi_device *dev, uint8_t data, int reg) + { + if (dev->mmio) + writeb(data, dev->mmio + reg); +- +- outb(data, dev->iobase + reg); ++ else ++ outb(data, dev->iobase + reg); + } + + static uint32_t ni_readl(struct comedi_device *dev, int reg) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/comedi/drivers/ni_tiocmd.c linux-libre-4.4.7-gnu/drivers/staging/comedi/drivers/ni_tiocmd.c +--- linux-libre-4.4-gnu/drivers/staging/comedi/drivers/ni_tiocmd.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/staging/comedi/drivers/ni_tiocmd.c 2016-04-12 12:09:26.000000000 -0400 +@@ -92,7 +92,7 @@ static int ni_tio_input_inttrig(struct c + unsigned long flags; + int ret = 0; + +- if (trig_num != cmd->start_src) ++ if (trig_num != cmd->start_arg) + return -EINVAL; + + spin_lock_irqsave(&counter->lock, flags); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/panel/panel.c linux-libre-4.4.7-gnu/drivers/staging/panel/panel.c +--- linux-libre-4.4-gnu/drivers/staging/panel/panel.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/staging/panel/panel.c 2016-04-12 12:09:26.000000000 -0400 +@@ -825,8 +825,7 @@ static void lcd_write_cmd_s(int cmd) + lcd_send_serial(0x1F); /* R/W=W, RS=0 */ + lcd_send_serial(cmd & 0x0F); + lcd_send_serial((cmd >> 4) & 0x0F); +- /* the shortest command takes at least 40 us */ +- usleep_range(40, 100); ++ udelay(40); /* the shortest command takes at least 40 us */ + spin_unlock_irq(&pprt_lock); + } + +@@ -837,8 +836,7 @@ static void lcd_write_data_s(int data) + lcd_send_serial(0x5F); /* R/W=W, RS=1 */ + lcd_send_serial(data & 0x0F); + lcd_send_serial((data >> 4) & 0x0F); +- /* the shortest data takes at least 40 us */ +- usleep_range(40, 100); ++ udelay(40); /* the shortest data takes at least 40 us */ + spin_unlock_irq(&pprt_lock); + } + +@@ -848,20 +846,19 @@ static void lcd_write_cmd_p8(int cmd) + spin_lock_irq(&pprt_lock); + /* present the data to the data port */ + w_dtr(pprt, cmd); +- /* maintain the data during 20 us before the strobe */ +- usleep_range(20, 100); ++ udelay(20); /* maintain the data during 20 us before the strobe */ + + bits.e = BIT_SET; + bits.rs = BIT_CLR; + bits.rw = BIT_CLR; + set_ctrl_bits(); + +- usleep_range(40, 100); /* maintain the strobe during 40 us */ ++ udelay(40); /* maintain the strobe during 40 us */ + + bits.e = BIT_CLR; + set_ctrl_bits(); + +- usleep_range(120, 500); /* the shortest command takes at least 120 us */ ++ udelay(120); /* the shortest command takes at least 120 us */ + spin_unlock_irq(&pprt_lock); + } + +@@ -871,20 +868,19 @@ static void lcd_write_data_p8(int data) + spin_lock_irq(&pprt_lock); + /* present the data to the data port */ + w_dtr(pprt, data); +- /* maintain the data during 20 us before the strobe */ +- usleep_range(20, 100); ++ udelay(20); /* maintain the data during 20 us before the strobe */ + + bits.e = BIT_SET; + bits.rs = BIT_SET; + bits.rw = BIT_CLR; + set_ctrl_bits(); + +- usleep_range(40, 100); /* maintain the strobe during 40 us */ ++ udelay(40); /* maintain the strobe during 40 us */ + + bits.e = BIT_CLR; + set_ctrl_bits(); + +- usleep_range(45, 100); /* the shortest data takes at least 45 us */ ++ udelay(45); /* the shortest data takes at least 45 us */ + spin_unlock_irq(&pprt_lock); + } + +@@ -894,7 +890,7 @@ static void lcd_write_cmd_tilcd(int cmd) + spin_lock_irq(&pprt_lock); + /* present the data to the control port */ + w_ctr(pprt, cmd); +- usleep_range(60, 120); ++ udelay(60); + spin_unlock_irq(&pprt_lock); + } + +@@ -904,7 +900,7 @@ static void lcd_write_data_tilcd(int dat + spin_lock_irq(&pprt_lock); + /* present the data to the data port */ + w_dtr(pprt, data); +- usleep_range(60, 120); ++ udelay(60); + spin_unlock_irq(&pprt_lock); + } + +@@ -947,7 +943,7 @@ static void lcd_clear_fast_s(void) + lcd_send_serial(0x5F); /* R/W=W, RS=1 */ + lcd_send_serial(' ' & 0x0F); + lcd_send_serial((' ' >> 4) & 0x0F); +- usleep_range(40, 100); /* the shortest data takes at least 40 us */ ++ udelay(40); /* the shortest data takes at least 40 us */ + } + spin_unlock_irq(&pprt_lock); + +@@ -971,7 +967,7 @@ static void lcd_clear_fast_p8(void) + w_dtr(pprt, ' '); + + /* maintain the data during 20 us before the strobe */ +- usleep_range(20, 100); ++ udelay(20); + + bits.e = BIT_SET; + bits.rs = BIT_SET; +@@ -979,13 +975,13 @@ static void lcd_clear_fast_p8(void) + set_ctrl_bits(); + + /* maintain the strobe during 40 us */ +- usleep_range(40, 100); ++ udelay(40); + + bits.e = BIT_CLR; + set_ctrl_bits(); + + /* the shortest data takes at least 45 us */ +- usleep_range(45, 100); ++ udelay(45); + } + spin_unlock_irq(&pprt_lock); + +@@ -1007,7 +1003,7 @@ static void lcd_clear_fast_tilcd(void) + for (pos = 0; pos < lcd.height * lcd.hwidth; pos++) { + /* present the data to the data port */ + w_dtr(pprt, ' '); +- usleep_range(60, 120); ++ udelay(60); + } + + spin_unlock_irq(&pprt_lock); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/speakup/selection.c linux-libre-4.4.7-gnu/drivers/staging/speakup/selection.c +--- linux-libre-4.4-gnu/drivers/staging/speakup/selection.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/staging/speakup/selection.c 2016-04-12 12:09:26.000000000 -0400 +@@ -142,7 +142,9 @@ static void __speakup_paste_selection(st + struct tty_ldisc *ld; + DECLARE_WAITQUEUE(wait, current); + +- ld = tty_ldisc_ref_wait(tty); ++ ld = tty_ldisc_ref(tty); ++ if (!ld) ++ goto tty_unref; + tty_buffer_lock_exclusive(&vc->port); + + add_wait_queue(&vc->paste_wait, &wait); +@@ -162,6 +164,7 @@ static void __speakup_paste_selection(st + + tty_buffer_unlock_exclusive(&vc->port); + tty_ldisc_deref(ld); ++tty_unref: + tty_kref_put(tty); + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/speakup/serialio.c linux-libre-4.4.7-gnu/drivers/staging/speakup/serialio.c +--- linux-libre-4.4-gnu/drivers/staging/speakup/serialio.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/staging/speakup/serialio.c 2016-04-12 12:09:26.000000000 -0400 +@@ -6,6 +6,11 @@ + #include "spk_priv.h" + #include "serialio.h" + ++#include <linux/serial_core.h> ++/* WARNING: Do not change this to <linux/serial.h> without testing that ++ * SERIAL_PORT_DFNS does get defined to the appropriate value. */ ++#include <asm/serial.h> ++ + #ifndef SERIAL_PORT_DFNS + #define SERIAL_PORT_DFNS + #endif +@@ -23,9 +28,15 @@ const struct old_serial_port *spk_serial + int baud = 9600, quot = 0; + unsigned int cval = 0; + int cflag = CREAD | HUPCL | CLOCAL | B9600 | CS8; +- const struct old_serial_port *ser = rs_table + index; ++ const struct old_serial_port *ser; + int err; + ++ if (index >= ARRAY_SIZE(rs_table)) { ++ pr_info("no port info for ttyS%d\n", index); ++ return NULL; ++ } ++ ser = rs_table + index; ++ + /* Divisor, bytesize and parity */ + quot = ser->baud_base / baud; + cval = cflag & (CSIZE | CSTOPB); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_configfs.c linux-libre-4.4.7-gnu/drivers/target/iscsi/iscsi_target_configfs.c +--- linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_configfs.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/target/iscsi/iscsi_target_configfs.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1593,7 +1593,8 @@ static int lio_tpg_check_prot_fabric_onl + } + + /* +- * Called with spin_lock_bh(struct se_portal_group->session_lock) held.. ++ * Called with spin_lock_irq(struct se_portal_group->session_lock) held ++ * or not held. + * + * Also, this function calls iscsit_inc_session_usage_count() on the + * struct iscsi_session in question. +@@ -1601,19 +1602,32 @@ static int lio_tpg_check_prot_fabric_onl + static int lio_tpg_shutdown_session(struct se_session *se_sess) + { + struct iscsi_session *sess = se_sess->fabric_sess_ptr; ++ struct se_portal_group *se_tpg = se_sess->se_tpg; ++ bool local_lock = false; ++ ++ if (!spin_is_locked(&se_tpg->session_lock)) { ++ spin_lock_irq(&se_tpg->session_lock); ++ local_lock = true; ++ } + + spin_lock(&sess->conn_lock); + if (atomic_read(&sess->session_fall_back_to_erl0) || + atomic_read(&sess->session_logout) || + (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { + spin_unlock(&sess->conn_lock); ++ if (local_lock) ++ spin_unlock_irq(&sess->conn_lock); + return 0; + } + atomic_set(&sess->session_reinstatement, 1); + spin_unlock(&sess->conn_lock); + + iscsit_stop_time2retain_timer(sess); ++ spin_unlock_irq(&se_tpg->session_lock); ++ + iscsit_stop_session(sess, 1, 1); ++ if (!local_lock) ++ spin_lock_irq(&se_tpg->session_lock); + + return 1; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_device.c linux-libre-4.4.7-gnu/drivers/target/target_core_device.c +--- linux-libre-4.4-gnu/drivers/target/target_core_device.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/target/target_core_device.c 2016-04-12 12:09:26.000000000 -0400 +@@ -826,6 +826,49 @@ struct se_device *target_alloc_device(st + return dev; + } + ++/* ++ * Check if the underlying struct block_device request_queue supports ++ * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM ++ * in ATA and we need to set TPE=1 ++ */ ++bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib, ++ struct request_queue *q, int block_size) ++{ ++ if (!blk_queue_discard(q)) ++ return false; ++ ++ attrib->max_unmap_lba_count = (q->limits.max_discard_sectors << 9) / ++ block_size; ++ /* ++ * Currently hardcoded to 1 in Linux/SCSI code.. ++ */ ++ attrib->max_unmap_block_desc_count = 1; ++ attrib->unmap_granularity = q->limits.discard_granularity / block_size; ++ attrib->unmap_granularity_alignment = q->limits.discard_alignment / ++ block_size; ++ return true; ++} ++EXPORT_SYMBOL(target_configure_unmap_from_queue); ++ ++/* ++ * Convert from blocksize advertised to the initiator to the 512 byte ++ * units unconditionally used by the Linux block layer. ++ */ ++sector_t target_to_linux_sector(struct se_device *dev, sector_t lb) ++{ ++ switch (dev->dev_attrib.block_size) { ++ case 4096: ++ return lb << 3; ++ case 2048: ++ return lb << 2; ++ case 1024: ++ return lb << 1; ++ default: ++ return lb; ++ } ++} ++EXPORT_SYMBOL(target_to_linux_sector); ++ + int target_configure_device(struct se_device *dev) + { + struct se_hba *hba = dev->se_hba; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_file.c linux-libre-4.4.7-gnu/drivers/target/target_core_file.c +--- linux-libre-4.4-gnu/drivers/target/target_core_file.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/target/target_core_file.c 2016-04-12 12:09:26.000000000 -0400 +@@ -160,25 +160,11 @@ static int fd_configure_device(struct se + " block_device blocks: %llu logical_block_size: %d\n", + dev_size, div_u64(dev_size, fd_dev->fd_block_size), + fd_dev->fd_block_size); +- /* +- * Check if the underlying struct block_device request_queue supports +- * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM +- * in ATA and we need to set TPE=1 +- */ +- if (blk_queue_discard(q)) { +- dev->dev_attrib.max_unmap_lba_count = +- q->limits.max_discard_sectors; +- /* +- * Currently hardcoded to 1 in Linux/SCSI code.. +- */ +- dev->dev_attrib.max_unmap_block_desc_count = 1; +- dev->dev_attrib.unmap_granularity = +- q->limits.discard_granularity >> 9; +- dev->dev_attrib.unmap_granularity_alignment = +- q->limits.discard_alignment; ++ ++ if (target_configure_unmap_from_queue(&dev->dev_attrib, q, ++ fd_dev->fd_block_size)) + pr_debug("IFILE: BLOCK Discard support available," +- " disabled by default\n"); +- } ++ " disabled by default\n"); + /* + * Enable write same emulation for IBLOCK and use 0xFFFF as + * the smaller WRITE_SAME(10) only has a two-byte block count. +@@ -490,9 +476,12 @@ fd_execute_unmap(struct se_cmd *cmd, sec + if (S_ISBLK(inode->i_mode)) { + /* The backend is block device, use discard */ + struct block_device *bdev = inode->i_bdev; ++ struct se_device *dev = cmd->se_dev; + +- ret = blkdev_issue_discard(bdev, lba, +- nolb, GFP_KERNEL, 0); ++ ret = blkdev_issue_discard(bdev, ++ target_to_linux_sector(dev, lba), ++ target_to_linux_sector(dev, nolb), ++ GFP_KERNEL, 0); + if (ret < 0) { + pr_warn("FILEIO: blkdev_issue_discard() failed: %d\n", + ret); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_iblock.c linux-libre-4.4.7-gnu/drivers/target/target_core_iblock.c +--- linux-libre-4.4-gnu/drivers/target/target_core_iblock.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/target/target_core_iblock.c 2016-04-12 12:09:26.000000000 -0400 +@@ -121,27 +121,11 @@ static int iblock_configure_device(struc + dev->dev_attrib.hw_max_sectors = queue_max_hw_sectors(q); + dev->dev_attrib.hw_queue_depth = q->nr_requests; + +- /* +- * Check if the underlying struct block_device request_queue supports +- * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM +- * in ATA and we need to set TPE=1 +- */ +- if (blk_queue_discard(q)) { +- dev->dev_attrib.max_unmap_lba_count = +- q->limits.max_discard_sectors; +- +- /* +- * Currently hardcoded to 1 in Linux/SCSI code.. +- */ +- dev->dev_attrib.max_unmap_block_desc_count = 1; +- dev->dev_attrib.unmap_granularity = +- q->limits.discard_granularity >> 9; +- dev->dev_attrib.unmap_granularity_alignment = +- q->limits.discard_alignment; +- ++ if (target_configure_unmap_from_queue(&dev->dev_attrib, q, ++ dev->dev_attrib.hw_block_size)) + pr_debug("IBLOCK: BLOCK Discard support available," +- " disabled by default\n"); +- } ++ " disabled by default\n"); ++ + /* + * Enable write same emulation for IBLOCK and use 0xFFFF as + * the smaller WRITE_SAME(10) only has a two-byte block count. +@@ -413,9 +397,13 @@ static sense_reason_t + iblock_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb) + { + struct block_device *bdev = IBLOCK_DEV(cmd->se_dev)->ibd_bd; ++ struct se_device *dev = cmd->se_dev; + int ret; + +- ret = blkdev_issue_discard(bdev, lba, nolb, GFP_KERNEL, 0); ++ ret = blkdev_issue_discard(bdev, ++ target_to_linux_sector(dev, lba), ++ target_to_linux_sector(dev, nolb), ++ GFP_KERNEL, 0); + if (ret < 0) { + pr_err("blkdev_issue_discard() failed: %d\n", ret); + return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; +@@ -431,8 +419,10 @@ iblock_execute_write_same(struct se_cmd + struct scatterlist *sg; + struct bio *bio; + struct bio_list list; +- sector_t block_lba = cmd->t_task_lba; +- sector_t sectors = sbc_get_write_same_sectors(cmd); ++ struct se_device *dev = cmd->se_dev; ++ sector_t block_lba = target_to_linux_sector(dev, cmd->t_task_lba); ++ sector_t sectors = target_to_linux_sector(dev, ++ sbc_get_write_same_sectors(cmd)); + + if (cmd->prot_op) { + pr_err("WRITE_SAME: Protection information with IBLOCK" +@@ -646,12 +636,12 @@ iblock_execute_rw(struct se_cmd *cmd, st + enum dma_data_direction data_direction) + { + struct se_device *dev = cmd->se_dev; ++ sector_t block_lba = target_to_linux_sector(dev, cmd->t_task_lba); + struct iblock_req *ibr; + struct bio *bio, *bio_start; + struct bio_list list; + struct scatterlist *sg; + u32 sg_num = sgl_nents; +- sector_t block_lba; + unsigned bio_cnt; + int rw = 0; + int i; +@@ -677,24 +667,6 @@ iblock_execute_rw(struct se_cmd *cmd, st + rw = READ; + } + +- /* +- * Convert the blocksize advertised to the initiator to the 512 byte +- * units unconditionally used by the Linux block layer. +- */ +- if (dev->dev_attrib.block_size == 4096) +- block_lba = (cmd->t_task_lba << 3); +- else if (dev->dev_attrib.block_size == 2048) +- block_lba = (cmd->t_task_lba << 2); +- else if (dev->dev_attrib.block_size == 1024) +- block_lba = (cmd->t_task_lba << 1); +- else if (dev->dev_attrib.block_size == 512) +- block_lba = cmd->t_task_lba; +- else { +- pr_err("Unsupported SCSI -> BLOCK LBA conversion:" +- " %u\n", dev->dev_attrib.block_size); +- return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; +- } +- + ibr = kzalloc(sizeof(struct iblock_req), GFP_KERNEL); + if (!ibr) + goto fail; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_tmr.c linux-libre-4.4.7-gnu/drivers/target/target_core_tmr.c +--- linux-libre-4.4-gnu/drivers/target/target_core_tmr.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/target/target_core_tmr.c 2016-04-12 12:09:26.000000000 -0400 +@@ -68,23 +68,25 @@ void core_tmr_release_req(struct se_tmr_ + + if (dev) { + spin_lock_irqsave(&dev->se_tmr_lock, flags); +- list_del(&tmr->tmr_list); ++ list_del_init(&tmr->tmr_list); + spin_unlock_irqrestore(&dev->se_tmr_lock, flags); + } + + kfree(tmr); + } + +-static void core_tmr_handle_tas_abort( +- struct se_node_acl *tmr_nacl, +- struct se_cmd *cmd, +- int tas) ++static void core_tmr_handle_tas_abort(struct se_cmd *cmd, int tas) + { +- bool remove = true; ++ unsigned long flags; ++ bool remove = true, send_tas; + /* + * TASK ABORTED status (TAS) bit support + */ +- if ((tmr_nacl && (tmr_nacl != cmd->se_sess->se_node_acl)) && tas) { ++ spin_lock_irqsave(&cmd->t_state_lock, flags); ++ send_tas = (cmd->transport_state & CMD_T_TAS); ++ spin_unlock_irqrestore(&cmd->t_state_lock, flags); ++ ++ if (send_tas) { + remove = false; + transport_send_task_abort(cmd); + } +@@ -107,6 +109,46 @@ static int target_check_cdb_and_preempt( + return 1; + } + ++static bool __target_check_io_state(struct se_cmd *se_cmd, ++ struct se_session *tmr_sess, int tas) ++{ ++ struct se_session *sess = se_cmd->se_sess; ++ ++ assert_spin_locked(&sess->sess_cmd_lock); ++ WARN_ON_ONCE(!irqs_disabled()); ++ /* ++ * If command already reached CMD_T_COMPLETE state within ++ * target_complete_cmd() or CMD_T_FABRIC_STOP due to shutdown, ++ * this se_cmd has been passed to fabric driver and will ++ * not be aborted. ++ * ++ * Otherwise, obtain a local se_cmd->cmd_kref now for TMR ++ * ABORT_TASK + LUN_RESET for CMD_T_ABORTED processing as ++ * long as se_cmd->cmd_kref is still active unless zero. ++ */ ++ spin_lock(&se_cmd->t_state_lock); ++ if (se_cmd->transport_state & (CMD_T_COMPLETE | CMD_T_FABRIC_STOP)) { ++ pr_debug("Attempted to abort io tag: %llu already complete or" ++ " fabric stop, skipping\n", se_cmd->tag); ++ spin_unlock(&se_cmd->t_state_lock); ++ return false; ++ } ++ if (sess->sess_tearing_down || se_cmd->cmd_wait_set) { ++ pr_debug("Attempted to abort io tag: %llu already shutdown," ++ " skipping\n", se_cmd->tag); ++ spin_unlock(&se_cmd->t_state_lock); ++ return false; ++ } ++ se_cmd->transport_state |= CMD_T_ABORTED; ++ ++ if ((tmr_sess != se_cmd->se_sess) && tas) ++ se_cmd->transport_state |= CMD_T_TAS; ++ ++ spin_unlock(&se_cmd->t_state_lock); ++ ++ return kref_get_unless_zero(&se_cmd->cmd_kref); ++} ++ + void core_tmr_abort_task( + struct se_device *dev, + struct se_tmr_req *tmr, +@@ -130,34 +172,21 @@ void core_tmr_abort_task( + if (tmr->ref_task_tag != ref_tag) + continue; + +- if (!kref_get_unless_zero(&se_cmd->cmd_kref)) +- continue; +- + printk("ABORT_TASK: Found referenced %s task_tag: %llu\n", + se_cmd->se_tfo->get_fabric_name(), ref_tag); + +- spin_lock(&se_cmd->t_state_lock); +- if (se_cmd->transport_state & CMD_T_COMPLETE) { +- printk("ABORT_TASK: ref_tag: %llu already complete," +- " skipping\n", ref_tag); +- spin_unlock(&se_cmd->t_state_lock); ++ if (!__target_check_io_state(se_cmd, se_sess, 0)) { + spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); +- +- target_put_sess_cmd(se_cmd); +- + goto out; + } +- se_cmd->transport_state |= CMD_T_ABORTED; +- spin_unlock(&se_cmd->t_state_lock); +- + list_del_init(&se_cmd->se_cmd_list); + spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); + + cancel_work_sync(&se_cmd->work); + transport_wait_for_tasks(se_cmd); + +- target_put_sess_cmd(se_cmd); + transport_cmd_finish_abort(se_cmd, true); ++ target_put_sess_cmd(se_cmd); + + printk("ABORT_TASK: Sending TMR_FUNCTION_COMPLETE for" + " ref_tag: %llu\n", ref_tag); +@@ -178,9 +207,11 @@ static void core_tmr_drain_tmr_list( + struct list_head *preempt_and_abort_list) + { + LIST_HEAD(drain_tmr_list); ++ struct se_session *sess; + struct se_tmr_req *tmr_p, *tmr_pp; + struct se_cmd *cmd; + unsigned long flags; ++ bool rc; + /* + * Release all pending and outgoing TMRs aside from the received + * LUN_RESET tmr.. +@@ -206,17 +237,39 @@ static void core_tmr_drain_tmr_list( + if (target_check_cdb_and_preempt(preempt_and_abort_list, cmd)) + continue; + ++ sess = cmd->se_sess; ++ if (WARN_ON_ONCE(!sess)) ++ continue; ++ ++ spin_lock(&sess->sess_cmd_lock); + spin_lock(&cmd->t_state_lock); +- if (!(cmd->transport_state & CMD_T_ACTIVE)) { ++ if (!(cmd->transport_state & CMD_T_ACTIVE) || ++ (cmd->transport_state & CMD_T_FABRIC_STOP)) { + spin_unlock(&cmd->t_state_lock); ++ spin_unlock(&sess->sess_cmd_lock); + continue; + } + if (cmd->t_state == TRANSPORT_ISTATE_PROCESSING) { + spin_unlock(&cmd->t_state_lock); ++ spin_unlock(&sess->sess_cmd_lock); + continue; + } ++ if (sess->sess_tearing_down || cmd->cmd_wait_set) { ++ spin_unlock(&cmd->t_state_lock); ++ spin_unlock(&sess->sess_cmd_lock); ++ continue; ++ } ++ cmd->transport_state |= CMD_T_ABORTED; + spin_unlock(&cmd->t_state_lock); + ++ rc = kref_get_unless_zero(&cmd->cmd_kref); ++ if (!rc) { ++ printk("LUN_RESET TMR: non-zero kref_get_unless_zero\n"); ++ spin_unlock(&sess->sess_cmd_lock); ++ continue; ++ } ++ spin_unlock(&sess->sess_cmd_lock); ++ + list_move_tail(&tmr_p->tmr_list, &drain_tmr_list); + } + spin_unlock_irqrestore(&dev->se_tmr_lock, flags); +@@ -230,20 +283,26 @@ static void core_tmr_drain_tmr_list( + (preempt_and_abort_list) ? "Preempt" : "", tmr_p, + tmr_p->function, tmr_p->response, cmd->t_state); + ++ cancel_work_sync(&cmd->work); ++ transport_wait_for_tasks(cmd); ++ + transport_cmd_finish_abort(cmd, 1); ++ target_put_sess_cmd(cmd); + } + } + + static void core_tmr_drain_state_list( + struct se_device *dev, + struct se_cmd *prout_cmd, +- struct se_node_acl *tmr_nacl, ++ struct se_session *tmr_sess, + int tas, + struct list_head *preempt_and_abort_list) + { + LIST_HEAD(drain_task_list); ++ struct se_session *sess; + struct se_cmd *cmd, *next; + unsigned long flags; ++ int rc; + + /* + * Complete outstanding commands with TASK_ABORTED SAM status. +@@ -282,6 +341,16 @@ static void core_tmr_drain_state_list( + if (prout_cmd == cmd) + continue; + ++ sess = cmd->se_sess; ++ if (WARN_ON_ONCE(!sess)) ++ continue; ++ ++ spin_lock(&sess->sess_cmd_lock); ++ rc = __target_check_io_state(cmd, tmr_sess, tas); ++ spin_unlock(&sess->sess_cmd_lock); ++ if (!rc) ++ continue; ++ + list_move_tail(&cmd->state_list, &drain_task_list); + cmd->state_active = false; + } +@@ -289,7 +358,7 @@ static void core_tmr_drain_state_list( + + while (!list_empty(&drain_task_list)) { + cmd = list_entry(drain_task_list.next, struct se_cmd, state_list); +- list_del(&cmd->state_list); ++ list_del_init(&cmd->state_list); + + pr_debug("LUN_RESET: %s cmd: %p" + " ITT/CmdSN: 0x%08llx/0x%08x, i_state: %d, t_state: %d" +@@ -313,16 +382,11 @@ static void core_tmr_drain_state_list( + * loop above, but we do it down here given that + * cancel_work_sync may block. + */ +- if (cmd->t_state == TRANSPORT_COMPLETE) +- cancel_work_sync(&cmd->work); +- +- spin_lock_irqsave(&cmd->t_state_lock, flags); +- target_stop_cmd(cmd, &flags); +- +- cmd->transport_state |= CMD_T_ABORTED; +- spin_unlock_irqrestore(&cmd->t_state_lock, flags); ++ cancel_work_sync(&cmd->work); ++ transport_wait_for_tasks(cmd); + +- core_tmr_handle_tas_abort(tmr_nacl, cmd, tas); ++ core_tmr_handle_tas_abort(cmd, tas); ++ target_put_sess_cmd(cmd); + } + } + +@@ -334,6 +398,7 @@ int core_tmr_lun_reset( + { + struct se_node_acl *tmr_nacl = NULL; + struct se_portal_group *tmr_tpg = NULL; ++ struct se_session *tmr_sess = NULL; + int tas; + /* + * TASK_ABORTED status bit, this is configurable via ConfigFS +@@ -352,8 +417,9 @@ int core_tmr_lun_reset( + * or struct se_device passthrough.. + */ + if (tmr && tmr->task_cmd && tmr->task_cmd->se_sess) { +- tmr_nacl = tmr->task_cmd->se_sess->se_node_acl; +- tmr_tpg = tmr->task_cmd->se_sess->se_tpg; ++ tmr_sess = tmr->task_cmd->se_sess; ++ tmr_nacl = tmr_sess->se_node_acl; ++ tmr_tpg = tmr_sess->se_tpg; + if (tmr_nacl && tmr_tpg) { + pr_debug("LUN_RESET: TMR caller fabric: %s" + " initiator port %s\n", +@@ -366,7 +432,7 @@ int core_tmr_lun_reset( + dev->transport->name, tas); + + core_tmr_drain_tmr_list(dev, tmr, preempt_and_abort_list); +- core_tmr_drain_state_list(dev, prout_cmd, tmr_nacl, tas, ++ core_tmr_drain_state_list(dev, prout_cmd, tmr_sess, tas, + preempt_and_abort_list); + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_transport.c linux-libre-4.4.7-gnu/drivers/target/target_core_transport.c +--- linux-libre-4.4-gnu/drivers/target/target_core_transport.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/target/target_core_transport.c 2016-04-12 12:09:26.000000000 -0400 +@@ -528,9 +528,6 @@ void transport_deregister_session(struct + } + EXPORT_SYMBOL(transport_deregister_session); + +-/* +- * Called with cmd->t_state_lock held. +- */ + static void target_remove_from_state_list(struct se_cmd *cmd) + { + struct se_device *dev = cmd->se_dev; +@@ -555,10 +552,6 @@ static int transport_cmd_check_stop(stru + { + unsigned long flags; + +- spin_lock_irqsave(&cmd->t_state_lock, flags); +- if (write_pending) +- cmd->t_state = TRANSPORT_WRITE_PENDING; +- + if (remove_from_lists) { + target_remove_from_state_list(cmd); + +@@ -568,6 +561,10 @@ static int transport_cmd_check_stop(stru + cmd->se_lun = NULL; + } + ++ spin_lock_irqsave(&cmd->t_state_lock, flags); ++ if (write_pending) ++ cmd->t_state = TRANSPORT_WRITE_PENDING; ++ + /* + * Determine if frontend context caller is requesting the stopping of + * this command for frontend exceptions. +@@ -621,6 +618,8 @@ static void transport_lun_remove_cmd(str + + void transport_cmd_finish_abort(struct se_cmd *cmd, int remove) + { ++ bool ack_kref = (cmd->se_cmd_flags & SCF_ACK_KREF); ++ + if (cmd->se_cmd_flags & SCF_SE_LUN_CMD) + transport_lun_remove_cmd(cmd); + /* +@@ -632,7 +631,7 @@ void transport_cmd_finish_abort(struct s + + if (transport_cmd_check_stop_to_fabric(cmd)) + return; +- if (remove) ++ if (remove && ack_kref) + transport_put_cmd(cmd); + } + +@@ -700,7 +699,7 @@ void target_complete_cmd(struct se_cmd * + * Check for case where an explicit ABORT_TASK has been received + * and transport_wait_for_tasks() will be waiting for completion.. + */ +- if (cmd->transport_state & CMD_T_ABORTED && ++ if (cmd->transport_state & CMD_T_ABORTED || + cmd->transport_state & CMD_T_STOP) { + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + complete_all(&cmd->t_transport_stop_comp); +@@ -1850,19 +1849,21 @@ static bool target_handle_task_attr(stru + return true; + } + ++static int __transport_check_aborted_status(struct se_cmd *, int); ++ + void target_execute_cmd(struct se_cmd *cmd) + { + /* +- * If the received CDB has aleady been aborted stop processing it here. +- */ +- if (transport_check_aborted_status(cmd, 1)) +- return; +- +- /* + * Determine if frontend context caller is requesting the stopping of + * this command for frontend exceptions. ++ * ++ * If the received CDB has aleady been aborted stop processing it here. + */ + spin_lock_irq(&cmd->t_state_lock); ++ if (__transport_check_aborted_status(cmd, 1)) { ++ spin_unlock_irq(&cmd->t_state_lock); ++ return; ++ } + if (cmd->transport_state & CMD_T_STOP) { + pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08llx\n", + __func__, __LINE__, cmd->tag); +@@ -2213,20 +2214,14 @@ static inline void transport_free_pages( + } + + /** +- * transport_release_cmd - free a command +- * @cmd: command to free ++ * transport_put_cmd - release a reference to a command ++ * @cmd: command to release + * +- * This routine unconditionally frees a command, and reference counting +- * or list removal must be done in the caller. ++ * This routine releases our reference to the command and frees it if possible. + */ +-static int transport_release_cmd(struct se_cmd *cmd) ++static int transport_put_cmd(struct se_cmd *cmd) + { + BUG_ON(!cmd->se_tfo); +- +- if (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) +- core_tmr_release_req(cmd->se_tmr_req); +- if (cmd->t_task_cdb != cmd->__t_task_cdb) +- kfree(cmd->t_task_cdb); + /* + * If this cmd has been setup with target_get_sess_cmd(), drop + * the kref and call ->release_cmd() in kref callback. +@@ -2234,18 +2229,6 @@ static int transport_release_cmd(struct + return target_put_sess_cmd(cmd); + } + +-/** +- * transport_put_cmd - release a reference to a command +- * @cmd: command to release +- * +- * This routine releases our reference to the command and frees it if possible. +- */ +-static int transport_put_cmd(struct se_cmd *cmd) +-{ +- transport_free_pages(cmd); +- return transport_release_cmd(cmd); +-} +- + void *transport_kmap_data_sg(struct se_cmd *cmd) + { + struct scatterlist *sg = cmd->t_data_sg; +@@ -2441,34 +2424,58 @@ static void transport_write_pending_qf(s + } + } + +-int transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks) ++static bool ++__transport_wait_for_tasks(struct se_cmd *, bool, bool *, bool *, ++ unsigned long *flags); ++ ++static void target_wait_free_cmd(struct se_cmd *cmd, bool *aborted, bool *tas) + { + unsigned long flags; ++ ++ spin_lock_irqsave(&cmd->t_state_lock, flags); ++ __transport_wait_for_tasks(cmd, true, aborted, tas, &flags); ++ spin_unlock_irqrestore(&cmd->t_state_lock, flags); ++} ++ ++int transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks) ++{ + int ret = 0; ++ bool aborted = false, tas = false; + + if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD)) { + if (wait_for_tasks && (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) +- transport_wait_for_tasks(cmd); ++ target_wait_free_cmd(cmd, &aborted, &tas); + +- ret = transport_release_cmd(cmd); ++ if (!aborted || tas) ++ ret = transport_put_cmd(cmd); + } else { + if (wait_for_tasks) +- transport_wait_for_tasks(cmd); ++ target_wait_free_cmd(cmd, &aborted, &tas); + /* + * Handle WRITE failure case where transport_generic_new_cmd() + * has already added se_cmd to state_list, but fabric has + * failed command before I/O submission. + */ +- if (cmd->state_active) { +- spin_lock_irqsave(&cmd->t_state_lock, flags); ++ if (cmd->state_active) + target_remove_from_state_list(cmd); +- spin_unlock_irqrestore(&cmd->t_state_lock, flags); +- } + + if (cmd->se_lun) + transport_lun_remove_cmd(cmd); + +- ret = transport_put_cmd(cmd); ++ if (!aborted || tas) ++ ret = transport_put_cmd(cmd); ++ } ++ /* ++ * If the task has been internally aborted due to TMR ABORT_TASK ++ * or LUN_RESET, target_core_tmr.c is responsible for performing ++ * the remaining calls to target_put_sess_cmd(), and not the ++ * callers of this function. ++ */ ++ if (aborted) { ++ pr_debug("Detected CMD_T_ABORTED for ITT: %llu\n", cmd->tag); ++ wait_for_completion(&cmd->cmd_wait_comp); ++ cmd->se_tfo->release_cmd(cmd); ++ ret = 1; + } + return ret; + } +@@ -2508,26 +2515,46 @@ out: + } + EXPORT_SYMBOL(target_get_sess_cmd); + ++static void target_free_cmd_mem(struct se_cmd *cmd) ++{ ++ transport_free_pages(cmd); ++ ++ if (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) ++ core_tmr_release_req(cmd->se_tmr_req); ++ if (cmd->t_task_cdb != cmd->__t_task_cdb) ++ kfree(cmd->t_task_cdb); ++} ++ + static void target_release_cmd_kref(struct kref *kref) + { + struct se_cmd *se_cmd = container_of(kref, struct se_cmd, cmd_kref); + struct se_session *se_sess = se_cmd->se_sess; + unsigned long flags; ++ bool fabric_stop; + + spin_lock_irqsave(&se_sess->sess_cmd_lock, flags); + if (list_empty(&se_cmd->se_cmd_list)) { + spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); ++ target_free_cmd_mem(se_cmd); + se_cmd->se_tfo->release_cmd(se_cmd); + return; + } +- if (se_sess->sess_tearing_down && se_cmd->cmd_wait_set) { ++ ++ spin_lock(&se_cmd->t_state_lock); ++ fabric_stop = (se_cmd->transport_state & CMD_T_FABRIC_STOP); ++ spin_unlock(&se_cmd->t_state_lock); ++ ++ if (se_cmd->cmd_wait_set || fabric_stop) { ++ list_del_init(&se_cmd->se_cmd_list); + spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); ++ target_free_cmd_mem(se_cmd); + complete(&se_cmd->cmd_wait_comp); + return; + } +- list_del(&se_cmd->se_cmd_list); ++ list_del_init(&se_cmd->se_cmd_list); + spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); + ++ target_free_cmd_mem(se_cmd); + se_cmd->se_tfo->release_cmd(se_cmd); + } + +@@ -2539,6 +2566,7 @@ int target_put_sess_cmd(struct se_cmd *s + struct se_session *se_sess = se_cmd->se_sess; + + if (!se_sess) { ++ target_free_cmd_mem(se_cmd); + se_cmd->se_tfo->release_cmd(se_cmd); + return 1; + } +@@ -2555,6 +2583,7 @@ void target_sess_cmd_list_set_waiting(st + { + struct se_cmd *se_cmd; + unsigned long flags; ++ int rc; + + spin_lock_irqsave(&se_sess->sess_cmd_lock, flags); + if (se_sess->sess_tearing_down) { +@@ -2564,8 +2593,15 @@ void target_sess_cmd_list_set_waiting(st + se_sess->sess_tearing_down = 1; + list_splice_init(&se_sess->sess_cmd_list, &se_sess->sess_wait_list); + +- list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list) +- se_cmd->cmd_wait_set = 1; ++ list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list) { ++ rc = kref_get_unless_zero(&se_cmd->cmd_kref); ++ if (rc) { ++ se_cmd->cmd_wait_set = 1; ++ spin_lock(&se_cmd->t_state_lock); ++ se_cmd->transport_state |= CMD_T_FABRIC_STOP; ++ spin_unlock(&se_cmd->t_state_lock); ++ } ++ } + + spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); + } +@@ -2578,15 +2614,23 @@ void target_wait_for_sess_cmds(struct se + { + struct se_cmd *se_cmd, *tmp_cmd; + unsigned long flags; ++ bool tas; + + list_for_each_entry_safe(se_cmd, tmp_cmd, + &se_sess->sess_wait_list, se_cmd_list) { +- list_del(&se_cmd->se_cmd_list); +- + pr_debug("Waiting for se_cmd: %p t_state: %d, fabric state:" + " %d\n", se_cmd, se_cmd->t_state, + se_cmd->se_tfo->get_cmd_state(se_cmd)); + ++ spin_lock_irqsave(&se_cmd->t_state_lock, flags); ++ tas = (se_cmd->transport_state & CMD_T_TAS); ++ spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); ++ ++ if (!target_put_sess_cmd(se_cmd)) { ++ if (tas) ++ target_put_sess_cmd(se_cmd); ++ } ++ + wait_for_completion(&se_cmd->cmd_wait_comp); + pr_debug("After cmd_wait_comp: se_cmd: %p t_state: %d" + " fabric state: %d\n", se_cmd, se_cmd->t_state, +@@ -2608,53 +2652,75 @@ void transport_clear_lun_ref(struct se_l + wait_for_completion(&lun->lun_ref_comp); + } + +-/** +- * transport_wait_for_tasks - wait for completion to occur +- * @cmd: command to wait +- * +- * Called from frontend fabric context to wait for storage engine +- * to pause and/or release frontend generated struct se_cmd. +- */ +-bool transport_wait_for_tasks(struct se_cmd *cmd) ++static bool ++__transport_wait_for_tasks(struct se_cmd *cmd, bool fabric_stop, ++ bool *aborted, bool *tas, unsigned long *flags) ++ __releases(&cmd->t_state_lock) ++ __acquires(&cmd->t_state_lock) + { +- unsigned long flags; + +- spin_lock_irqsave(&cmd->t_state_lock, flags); ++ assert_spin_locked(&cmd->t_state_lock); ++ WARN_ON_ONCE(!irqs_disabled()); ++ ++ if (fabric_stop) ++ cmd->transport_state |= CMD_T_FABRIC_STOP; ++ ++ if (cmd->transport_state & CMD_T_ABORTED) ++ *aborted = true; ++ ++ if (cmd->transport_state & CMD_T_TAS) ++ *tas = true; ++ + if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD) && +- !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) { +- spin_unlock_irqrestore(&cmd->t_state_lock, flags); ++ !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) + return false; +- } + + if (!(cmd->se_cmd_flags & SCF_SUPPORTED_SAM_OPCODE) && +- !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) { +- spin_unlock_irqrestore(&cmd->t_state_lock, flags); ++ !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) + return false; +- } + +- if (!(cmd->transport_state & CMD_T_ACTIVE)) { +- spin_unlock_irqrestore(&cmd->t_state_lock, flags); ++ if (!(cmd->transport_state & CMD_T_ACTIVE)) ++ return false; ++ ++ if (fabric_stop && *aborted) + return false; +- } + + cmd->transport_state |= CMD_T_STOP; + +- pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08llx i_state: %d, t_state: %d, CMD_T_STOP\n", +- cmd, cmd->tag, cmd->se_tfo->get_cmd_state(cmd), cmd->t_state); ++ pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08llx i_state: %d," ++ " t_state: %d, CMD_T_STOP\n", cmd, cmd->tag, ++ cmd->se_tfo->get_cmd_state(cmd), cmd->t_state); + +- spin_unlock_irqrestore(&cmd->t_state_lock, flags); ++ spin_unlock_irqrestore(&cmd->t_state_lock, *flags); + + wait_for_completion(&cmd->t_transport_stop_comp); + +- spin_lock_irqsave(&cmd->t_state_lock, flags); ++ spin_lock_irqsave(&cmd->t_state_lock, *flags); + cmd->transport_state &= ~(CMD_T_ACTIVE | CMD_T_STOP); + +- pr_debug("wait_for_tasks: Stopped wait_for_completion(&cmd->t_transport_stop_comp) for ITT: 0x%08llx\n", +- cmd->tag); ++ pr_debug("wait_for_tasks: Stopped wait_for_completion(&cmd->" ++ "t_transport_stop_comp) for ITT: 0x%08llx\n", cmd->tag); ++ ++ return true; ++} + ++/** ++ * transport_wait_for_tasks - wait for completion to occur ++ * @cmd: command to wait ++ * ++ * Called from frontend fabric context to wait for storage engine ++ * to pause and/or release frontend generated struct se_cmd. ++ */ ++bool transport_wait_for_tasks(struct se_cmd *cmd) ++{ ++ unsigned long flags; ++ bool ret, aborted = false, tas = false; ++ ++ spin_lock_irqsave(&cmd->t_state_lock, flags); ++ ret = __transport_wait_for_tasks(cmd, false, &aborted, &tas, &flags); + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + +- return true; ++ return ret; + } + EXPORT_SYMBOL(transport_wait_for_tasks); + +@@ -2836,28 +2902,49 @@ transport_send_check_condition_and_sense + } + EXPORT_SYMBOL(transport_send_check_condition_and_sense); + +-int transport_check_aborted_status(struct se_cmd *cmd, int send_status) ++static int __transport_check_aborted_status(struct se_cmd *cmd, int send_status) ++ __releases(&cmd->t_state_lock) ++ __acquires(&cmd->t_state_lock) + { ++ assert_spin_locked(&cmd->t_state_lock); ++ WARN_ON_ONCE(!irqs_disabled()); ++ + if (!(cmd->transport_state & CMD_T_ABORTED)) + return 0; +- + /* + * If cmd has been aborted but either no status is to be sent or it has + * already been sent, just return + */ +- if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS)) ++ if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS)) { ++ if (send_status) ++ cmd->se_cmd_flags |= SCF_SEND_DELAYED_TAS; + return 1; ++ } + +- pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB: 0x%02x ITT: 0x%08llx\n", +- cmd->t_task_cdb[0], cmd->tag); ++ pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB:" ++ " 0x%02x ITT: 0x%08llx\n", cmd->t_task_cdb[0], cmd->tag); + + cmd->se_cmd_flags &= ~SCF_SEND_DELAYED_TAS; + cmd->scsi_status = SAM_STAT_TASK_ABORTED; + trace_target_cmd_complete(cmd); ++ ++ spin_unlock_irq(&cmd->t_state_lock); + cmd->se_tfo->queue_status(cmd); ++ spin_lock_irq(&cmd->t_state_lock); + + return 1; + } ++ ++int transport_check_aborted_status(struct se_cmd *cmd, int send_status) ++{ ++ int ret; ++ ++ spin_lock_irq(&cmd->t_state_lock); ++ ret = __transport_check_aborted_status(cmd, send_status); ++ spin_unlock_irq(&cmd->t_state_lock); ++ ++ return ret; ++} + EXPORT_SYMBOL(transport_check_aborted_status); + + void transport_send_task_abort(struct se_cmd *cmd) +@@ -2879,11 +2966,17 @@ void transport_send_task_abort(struct se + */ + if (cmd->data_direction == DMA_TO_DEVICE) { + if (cmd->se_tfo->write_pending_status(cmd) != 0) { +- cmd->transport_state |= CMD_T_ABORTED; ++ spin_lock_irqsave(&cmd->t_state_lock, flags); ++ if (cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS) { ++ spin_unlock_irqrestore(&cmd->t_state_lock, flags); ++ goto send_abort; ++ } + cmd->se_cmd_flags |= SCF_SEND_DELAYED_TAS; ++ spin_unlock_irqrestore(&cmd->t_state_lock, flags); + return; + } + } ++send_abort: + cmd->scsi_status = SAM_STAT_TASK_ABORTED; + + transport_lun_remove_cmd(cmd); +@@ -2900,8 +2993,17 @@ static void target_tmr_work(struct work_ + struct se_cmd *cmd = container_of(work, struct se_cmd, work); + struct se_device *dev = cmd->se_dev; + struct se_tmr_req *tmr = cmd->se_tmr_req; ++ unsigned long flags; + int ret; + ++ spin_lock_irqsave(&cmd->t_state_lock, flags); ++ if (cmd->transport_state & CMD_T_ABORTED) { ++ tmr->response = TMR_FUNCTION_REJECTED; ++ spin_unlock_irqrestore(&cmd->t_state_lock, flags); ++ goto check_stop; ++ } ++ spin_unlock_irqrestore(&cmd->t_state_lock, flags); ++ + switch (tmr->function) { + case TMR_ABORT_TASK: + core_tmr_abort_task(dev, tmr, cmd->se_sess); +@@ -2934,9 +3036,17 @@ static void target_tmr_work(struct work_ + break; + } + ++ spin_lock_irqsave(&cmd->t_state_lock, flags); ++ if (cmd->transport_state & CMD_T_ABORTED) { ++ spin_unlock_irqrestore(&cmd->t_state_lock, flags); ++ goto check_stop; ++ } + cmd->t_state = TRANSPORT_ISTATE_PROCESSING; ++ spin_unlock_irqrestore(&cmd->t_state_lock, flags); ++ + cmd->se_tfo->queue_tm_rsp(cmd); + ++check_stop: + transport_cmd_check_stop_to_fabric(cmd); + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/thermal/cpu_cooling.c linux-libre-4.4.7-gnu/drivers/thermal/cpu_cooling.c +--- linux-libre-4.4-gnu/drivers/thermal/cpu_cooling.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/thermal/cpu_cooling.c 2016-04-12 12:09:26.000000000 -0400 +@@ -377,26 +377,28 @@ static u32 cpu_power_to_freq(struct cpuf + * get_load() - get load for a cpu since last updated + * @cpufreq_device: &struct cpufreq_cooling_device for this cpu + * @cpu: cpu number ++ * @cpu_idx: index of the cpu in cpufreq_device->allowed_cpus + * + * Return: The average load of cpu @cpu in percentage since this + * function was last called. + */ +-static u32 get_load(struct cpufreq_cooling_device *cpufreq_device, int cpu) ++static u32 get_load(struct cpufreq_cooling_device *cpufreq_device, int cpu, ++ int cpu_idx) + { + u32 load; + u64 now, now_idle, delta_time, delta_idle; + + now_idle = get_cpu_idle_time(cpu, &now, 0); +- delta_idle = now_idle - cpufreq_device->time_in_idle[cpu]; +- delta_time = now - cpufreq_device->time_in_idle_timestamp[cpu]; ++ delta_idle = now_idle - cpufreq_device->time_in_idle[cpu_idx]; ++ delta_time = now - cpufreq_device->time_in_idle_timestamp[cpu_idx]; + + if (delta_time <= delta_idle) + load = 0; + else + load = div64_u64(100 * (delta_time - delta_idle), delta_time); + +- cpufreq_device->time_in_idle[cpu] = now_idle; +- cpufreq_device->time_in_idle_timestamp[cpu] = now; ++ cpufreq_device->time_in_idle[cpu_idx] = now_idle; ++ cpufreq_device->time_in_idle_timestamp[cpu_idx] = now; + + return load; + } +@@ -598,7 +600,7 @@ static int cpufreq_get_requested_power(s + u32 load; + + if (cpu_online(cpu)) +- load = get_load(cpufreq_device, cpu); ++ load = get_load(cpufreq_device, cpu, i); + else + load = 0; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/thermal/step_wise.c linux-libre-4.4.7-gnu/drivers/thermal/step_wise.c +--- linux-libre-4.4-gnu/drivers/thermal/step_wise.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/thermal/step_wise.c 2016-04-12 12:09:26.000000000 -0400 +@@ -63,6 +63,19 @@ static unsigned long get_target_state(st + next_target = instance->target; + dev_dbg(&cdev->device, "cur_state=%ld\n", cur_state); + ++ if (!instance->initialized) { ++ if (throttle) { ++ next_target = (cur_state + 1) >= instance->upper ? ++ instance->upper : ++ ((cur_state + 1) < instance->lower ? ++ instance->lower : (cur_state + 1)); ++ } else { ++ next_target = THERMAL_NO_TARGET; ++ } ++ ++ return next_target; ++ } ++ + switch (trend) { + case THERMAL_TREND_RAISING: + if (throttle) { +@@ -149,7 +162,7 @@ static void thermal_zone_trip_update(str + dev_dbg(&instance->cdev->device, "old_target=%d, target=%d\n", + old_target, (int)instance->target); + +- if (old_target == instance->target) ++ if (instance->initialized && old_target == instance->target) + continue; + + /* Activate a passive thermal instance */ +@@ -161,7 +174,7 @@ static void thermal_zone_trip_update(str + instance->target == THERMAL_NO_TARGET) + update_passive_instance(tz, trip_type, -1); + +- ++ instance->initialized = true; + instance->cdev->updated = false; /* cdev needs update */ + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/thermal/thermal_core.c linux-libre-4.4.7-gnu/drivers/thermal/thermal_core.c +--- linux-libre-4.4-gnu/drivers/thermal/thermal_core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/thermal/thermal_core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -37,6 +37,7 @@ + #include <linux/of.h> + #include <net/netlink.h> + #include <net/genetlink.h> ++#include <linux/suspend.h> + + #define CREATE_TRACE_POINTS + #include <trace/events/thermal.h> +@@ -59,6 +60,8 @@ static LIST_HEAD(thermal_governor_list); + static DEFINE_MUTEX(thermal_list_lock); + static DEFINE_MUTEX(thermal_governor_lock); + ++static atomic_t in_suspend; ++ + static struct thermal_governor *def_governor; + + static struct thermal_governor *__find_governor(const char *name) +@@ -451,6 +454,10 @@ static void handle_thermal_trip(struct t + { + enum thermal_trip_type type; + ++ /* Ignore disabled trip points */ ++ if (test_bit(trip, &tz->trips_disabled)) ++ return; ++ + tz->ops->get_trip_type(tz, trip, &type); + + if (type == THERMAL_TRIP_CRITICAL || type == THERMAL_TRIP_HOT) +@@ -532,14 +539,31 @@ static void update_temperature(struct th + mutex_unlock(&tz->lock); + + trace_thermal_temperature(tz); +- dev_dbg(&tz->device, "last_temperature=%d, current_temperature=%d\n", +- tz->last_temperature, tz->temperature); ++ if (tz->last_temperature == THERMAL_TEMP_INVALID) ++ dev_dbg(&tz->device, "last_temperature N/A, current_temperature=%d\n", ++ tz->temperature); ++ else ++ dev_dbg(&tz->device, "last_temperature=%d, current_temperature=%d\n", ++ tz->last_temperature, tz->temperature); ++} ++ ++static void thermal_zone_device_reset(struct thermal_zone_device *tz) ++{ ++ struct thermal_instance *pos; ++ ++ tz->temperature = THERMAL_TEMP_INVALID; ++ tz->passive = 0; ++ list_for_each_entry(pos, &tz->thermal_instances, tz_node) ++ pos->initialized = false; + } + + void thermal_zone_device_update(struct thermal_zone_device *tz) + { + int count; + ++ if (atomic_read(&in_suspend)) ++ return; ++ + if (!tz->ops->get_temp) + return; + +@@ -1321,6 +1345,7 @@ int thermal_zone_bind_cooling_device(str + if (!result) { + list_add_tail(&dev->tz_node, &tz->thermal_instances); + list_add_tail(&dev->cdev_node, &cdev->thermal_instances); ++ atomic_set(&tz->need_update, 1); + } + mutex_unlock(&cdev->lock); + mutex_unlock(&tz->lock); +@@ -1430,6 +1455,7 @@ __thermal_cooling_device_register(struct + const struct thermal_cooling_device_ops *ops) + { + struct thermal_cooling_device *cdev; ++ struct thermal_zone_device *pos = NULL; + int result; + + if (type && strlen(type) >= THERMAL_NAME_LENGTH) +@@ -1474,6 +1500,12 @@ __thermal_cooling_device_register(struct + /* Update binding information for 'this' new cdev */ + bind_cdev(cdev); + ++ mutex_lock(&thermal_list_lock); ++ list_for_each_entry(pos, &thermal_tz_list, node) ++ if (atomic_cmpxchg(&pos->need_update, 1, 0)) ++ thermal_zone_device_update(pos); ++ mutex_unlock(&thermal_list_lock); ++ + return cdev; + } + +@@ -1768,6 +1800,7 @@ struct thermal_zone_device *thermal_zone + { + struct thermal_zone_device *tz; + enum thermal_trip_type trip_type; ++ int trip_temp; + int result; + int count; + int passive = 0; +@@ -1806,6 +1839,8 @@ struct thermal_zone_device *thermal_zone + tz->trips = trips; + tz->passive_delay = passive_delay; + tz->polling_delay = polling_delay; ++ /* A new thermal zone needs to be updated anyway. */ ++ atomic_set(&tz->need_update, 1); + + dev_set_name(&tz->device, "thermal_zone%d", tz->id); + result = device_register(&tz->device); +@@ -1837,9 +1872,15 @@ struct thermal_zone_device *thermal_zone + goto unregister; + + for (count = 0; count < trips; count++) { +- tz->ops->get_trip_type(tz, count, &trip_type); ++ if (tz->ops->get_trip_type(tz, count, &trip_type)) ++ set_bit(count, &tz->trips_disabled); + if (trip_type == THERMAL_TRIP_PASSIVE) + passive = 1; ++ if (tz->ops->get_trip_temp(tz, count, &trip_temp)) ++ set_bit(count, &tz->trips_disabled); ++ /* Check for bogus trip points */ ++ if (trip_temp == 0) ++ set_bit(count, &tz->trips_disabled); + } + + if (!passive) { +@@ -1900,7 +1941,10 @@ struct thermal_zone_device *thermal_zone + + INIT_DELAYED_WORK(&(tz->poll_queue), thermal_zone_device_check); + +- thermal_zone_device_update(tz); ++ thermal_zone_device_reset(tz); ++ /* Update the new thermal zone and mark it as already updated. */ ++ if (atomic_cmpxchg(&tz->need_update, 1, 0)) ++ thermal_zone_device_update(tz); + + return tz; + +@@ -2140,6 +2184,36 @@ static void thermal_unregister_governors + thermal_gov_power_allocator_unregister(); + } + ++static int thermal_pm_notify(struct notifier_block *nb, ++ unsigned long mode, void *_unused) ++{ ++ struct thermal_zone_device *tz; ++ ++ switch (mode) { ++ case PM_HIBERNATION_PREPARE: ++ case PM_RESTORE_PREPARE: ++ case PM_SUSPEND_PREPARE: ++ atomic_set(&in_suspend, 1); ++ break; ++ case PM_POST_HIBERNATION: ++ case PM_POST_RESTORE: ++ case PM_POST_SUSPEND: ++ atomic_set(&in_suspend, 0); ++ list_for_each_entry(tz, &thermal_tz_list, node) { ++ thermal_zone_device_reset(tz); ++ thermal_zone_device_update(tz); ++ } ++ break; ++ default: ++ break; ++ } ++ return 0; ++} ++ ++static struct notifier_block thermal_pm_nb = { ++ .notifier_call = thermal_pm_notify, ++}; ++ + static int __init thermal_init(void) + { + int result; +@@ -2160,6 +2234,11 @@ static int __init thermal_init(void) + if (result) + goto exit_netlink; + ++ result = register_pm_notifier(&thermal_pm_nb); ++ if (result) ++ pr_warn("Thermal: Can not register suspend notifier, return %d\n", ++ result); ++ + return 0; + + exit_netlink: +@@ -2179,6 +2258,7 @@ error: + + static void __exit thermal_exit(void) + { ++ unregister_pm_notifier(&thermal_pm_nb); + of_thermal_destroy_zones(); + genetlink_exit(); + class_unregister(&thermal_class); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/thermal/thermal_core.h linux-libre-4.4.7-gnu/drivers/thermal/thermal_core.h +--- linux-libre-4.4-gnu/drivers/thermal/thermal_core.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/thermal/thermal_core.h 2016-04-12 12:09:26.000000000 -0400 +@@ -41,6 +41,7 @@ struct thermal_instance { + struct thermal_zone_device *tz; + struct thermal_cooling_device *cdev; + int trip; ++ bool initialized; + unsigned long upper; /* Highest cooling state for this trip point */ + unsigned long lower; /* Lowest cooling state for this trip point */ + unsigned long target; /* expected cooling state */ +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/n_tty.c linux-libre-4.4.7-gnu/drivers/tty/n_tty.c +--- linux-libre-4.4-gnu/drivers/tty/n_tty.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/tty/n_tty.c 2016-04-12 12:09:26.000000000 -0400 +@@ -258,16 +258,13 @@ static void n_tty_check_throttle(struct + + static void n_tty_check_unthrottle(struct tty_struct *tty) + { +- if (tty->driver->type == TTY_DRIVER_TYPE_PTY && +- tty->link->ldisc->ops->write_wakeup == n_tty_write_wakeup) { ++ if (tty->driver->type == TTY_DRIVER_TYPE_PTY) { + if (chars_in_buffer(tty) > TTY_THRESHOLD_UNTHROTTLE) + return; + if (!tty->count) + return; + n_tty_kick_worker(tty); +- n_tty_write_wakeup(tty->link); +- if (waitqueue_active(&tty->link->write_wait)) +- wake_up_interruptible_poll(&tty->link->write_wait, POLLOUT); ++ tty_wakeup(tty->link); + return; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/pty.c linux-libre-4.4.7-gnu/drivers/tty/pty.c +--- linux-libre-4.4-gnu/drivers/tty/pty.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/tty/pty.c 2016-04-12 12:09:26.000000000 -0400 +@@ -681,7 +681,14 @@ static void pty_unix98_remove(struct tty + /* this is called once with whichever end is closed last */ + static void pty_unix98_shutdown(struct tty_struct *tty) + { +- devpts_kill_index(tty->driver_data, tty->index); ++ struct inode *ptmx_inode; ++ ++ if (tty->driver->subtype == PTY_TYPE_MASTER) ++ ptmx_inode = tty->driver_data; ++ else ++ ptmx_inode = tty->link->driver_data; ++ devpts_kill_index(ptmx_inode, tty->index); ++ devpts_del_ref(ptmx_inode); + } + + static const struct tty_operations ptm_unix98_ops = { +@@ -773,6 +780,18 @@ static int ptmx_open(struct inode *inode + set_bit(TTY_PTY_LOCK, &tty->flags); /* LOCK THE SLAVE */ + tty->driver_data = inode; + ++ /* ++ * In the case where all references to ptmx inode are dropped and we ++ * still have /dev/tty opened pointing to the master/slave pair (ptmx ++ * is closed/released before /dev/tty), we must make sure that the inode ++ * is still valid when we call the final pty_unix98_shutdown, thus we ++ * hold an additional reference to the ptmx inode. For the same /dev/tty ++ * last close case, we also need to make sure the super_block isn't ++ * destroyed (devpts instance unmounted), before /dev/tty is closed and ++ * on its release devpts_kill_index is called. ++ */ ++ devpts_add_ref(inode); ++ + tty_add_file(tty, filp); + + slave_inode = devpts_pty_new(inode, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_pci.c linux-libre-4.4.7-gnu/drivers/tty/serial/8250/8250_pci.c +--- linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_pci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/tty/serial/8250/8250_pci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1379,6 +1379,9 @@ ce4100_serial_setup(struct serial_privat + #define PCI_DEVICE_ID_INTEL_BSW_UART1 0x228a + #define PCI_DEVICE_ID_INTEL_BSW_UART2 0x228c + ++#define PCI_DEVICE_ID_INTEL_BDW_UART1 0x9ce3 ++#define PCI_DEVICE_ID_INTEL_BDW_UART2 0x9ce4 ++ + #define BYT_PRV_CLK 0x800 + #define BYT_PRV_CLK_EN (1 << 0) + #define BYT_PRV_CLK_M_VAL_SHIFT 1 +@@ -1461,11 +1464,13 @@ byt_serial_setup(struct serial_private * + switch (pdev->device) { + case PCI_DEVICE_ID_INTEL_BYT_UART1: + case PCI_DEVICE_ID_INTEL_BSW_UART1: ++ case PCI_DEVICE_ID_INTEL_BDW_UART1: + rx_param->src_id = 3; + tx_param->dst_id = 2; + break; + case PCI_DEVICE_ID_INTEL_BYT_UART2: + case PCI_DEVICE_ID_INTEL_BSW_UART2: ++ case PCI_DEVICE_ID_INTEL_BDW_UART2: + rx_param->src_id = 5; + tx_param->dst_id = 4; + break; +@@ -1936,6 +1941,7 @@ pci_wch_ch38x_setup(struct serial_privat + #define PCIE_VENDOR_ID_WCH 0x1c00 + #define PCIE_DEVICE_ID_WCH_CH382_2S1P 0x3250 + #define PCIE_DEVICE_ID_WCH_CH384_4S 0x3470 ++#define PCIE_DEVICE_ID_WCH_CH382_2S 0x3253 + + #define PCI_VENDOR_ID_PERICOM 0x12D8 + #define PCI_DEVICE_ID_PERICOM_PI7C9X7951 0x7951 +@@ -2062,6 +2068,20 @@ static struct pci_serial_quirk pci_seria + .subdevice = PCI_ANY_ID, + .setup = byt_serial_setup, + }, ++ { ++ .vendor = PCI_VENDOR_ID_INTEL, ++ .device = PCI_DEVICE_ID_INTEL_BDW_UART1, ++ .subvendor = PCI_ANY_ID, ++ .subdevice = PCI_ANY_ID, ++ .setup = byt_serial_setup, ++ }, ++ { ++ .vendor = PCI_VENDOR_ID_INTEL, ++ .device = PCI_DEVICE_ID_INTEL_BDW_UART2, ++ .subvendor = PCI_ANY_ID, ++ .subdevice = PCI_ANY_ID, ++ .setup = byt_serial_setup, ++ }, + /* + * ITE + */ +@@ -2618,6 +2638,14 @@ static struct pci_serial_quirk pci_seria + .subdevice = PCI_ANY_ID, + .setup = pci_wch_ch353_setup, + }, ++ /* WCH CH382 2S card (16850 clone) */ ++ { ++ .vendor = PCIE_VENDOR_ID_WCH, ++ .device = PCIE_DEVICE_ID_WCH_CH382_2S, ++ .subvendor = PCI_ANY_ID, ++ .subdevice = PCI_ANY_ID, ++ .setup = pci_wch_ch38x_setup, ++ }, + /* WCH CH382 2S1P card (16850 clone) */ + { + .vendor = PCIE_VENDOR_ID_WCH, +@@ -2936,6 +2964,7 @@ enum pci_board_num_t { + pbn_fintek_4, + pbn_fintek_8, + pbn_fintek_12, ++ pbn_wch382_2, + pbn_wch384_4, + pbn_pericom_PI7C9X7951, + pbn_pericom_PI7C9X7952, +@@ -3756,6 +3785,13 @@ static struct pciserial_board pci_boards + .base_baud = 115200, + .first_offset = 0x40, + }, ++ [pbn_wch382_2] = { ++ .flags = FL_BASE0, ++ .num_ports = 2, ++ .base_baud = 115200, ++ .uart_offset = 8, ++ .first_offset = 0xC0, ++ }, + [pbn_wch384_4] = { + .flags = FL_BASE0, + .num_ports = 4, +@@ -5506,6 +5542,16 @@ static struct pci_device_id serial_pci_t + PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000, + pbn_byt }, + ++ /* Intel Broadwell */ ++ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BDW_UART1, ++ PCI_ANY_ID, PCI_ANY_ID, ++ PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000, ++ pbn_byt }, ++ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BDW_UART2, ++ PCI_ANY_ID, PCI_ANY_ID, ++ PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000, ++ pbn_byt }, ++ + /* + * Intel Quark x1000 + */ +@@ -5545,6 +5591,10 @@ static struct pci_device_id serial_pci_t + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, pbn_b0_bt_2_115200 }, + ++ { PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH382_2S, ++ PCI_ANY_ID, PCI_ANY_ID, ++ 0, 0, pbn_wch382_2 }, ++ + { PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH384_4S, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, pbn_wch384_4 }, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_port.c linux-libre-4.4.7-gnu/drivers/tty/serial/8250/8250_port.c +--- linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_port.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/tty/serial/8250/8250_port.c 2016-04-12 12:09:26.000000000 -0400 +@@ -713,22 +713,16 @@ static int size_fifo(struct uart_8250_po + */ + static unsigned int autoconfig_read_divisor_id(struct uart_8250_port *p) + { +- unsigned char old_dll, old_dlm, old_lcr; +- unsigned int id; ++ unsigned char old_lcr; ++ unsigned int id, old_dl; + + old_lcr = serial_in(p, UART_LCR); + serial_out(p, UART_LCR, UART_LCR_CONF_MODE_A); ++ old_dl = serial_dl_read(p); ++ serial_dl_write(p, 0); ++ id = serial_dl_read(p); ++ serial_dl_write(p, old_dl); + +- old_dll = serial_in(p, UART_DLL); +- old_dlm = serial_in(p, UART_DLM); +- +- serial_out(p, UART_DLL, 0); +- serial_out(p, UART_DLM, 0); +- +- id = serial_in(p, UART_DLL) | serial_in(p, UART_DLM) << 8; +- +- serial_out(p, UART_DLL, old_dll); +- serial_out(p, UART_DLM, old_dlm); + serial_out(p, UART_LCR, old_lcr); + + return id; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/omap-serial.c linux-libre-4.4.7-gnu/drivers/tty/serial/omap-serial.c +--- linux-libre-4.4-gnu/drivers/tty/serial/omap-serial.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/tty/serial/omap-serial.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1343,7 +1343,7 @@ static inline void serial_omap_add_conso + + /* Enable or disable the rs485 support */ + static int +-serial_omap_config_rs485(struct uart_port *port, struct serial_rs485 *rs485conf) ++serial_omap_config_rs485(struct uart_port *port, struct serial_rs485 *rs485) + { + struct uart_omap_port *up = to_uart_omap_port(port); + unsigned int mode; +@@ -1356,8 +1356,12 @@ serial_omap_config_rs485(struct uart_por + up->ier = 0; + serial_out(up, UART_IER, 0); + ++ /* Clamp the delays to [0, 100ms] */ ++ rs485->delay_rts_before_send = min(rs485->delay_rts_before_send, 100U); ++ rs485->delay_rts_after_send = min(rs485->delay_rts_after_send, 100U); ++ + /* store new config */ +- port->rs485 = *rs485conf; ++ port->rs485 = *rs485; + + /* + * Just as a precaution, only allow rs485 +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/tty_io.c linux-libre-4.4.7-gnu/drivers/tty/tty_io.c +--- linux-libre-4.4-gnu/drivers/tty/tty_io.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/tty/tty_io.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1462,13 +1462,13 @@ static int tty_reopen(struct tty_struct + { + struct tty_driver *driver = tty->driver; + +- if (!tty->count) +- return -EIO; +- + if (driver->type == TTY_DRIVER_TYPE_PTY && + driver->subtype == PTY_TYPE_MASTER) + return -EIO; + ++ if (!tty->count) ++ return -EAGAIN; ++ + if (test_bit(TTY_EXCLUSIVE, &tty->flags) && !capable(CAP_SYS_ADMIN)) + return -EBUSY; + +@@ -2069,7 +2069,12 @@ retry_open: + + if (tty) { + mutex_unlock(&tty_mutex); +- tty_lock(tty); ++ retval = tty_lock_interruptible(tty); ++ if (retval) { ++ if (retval == -EINTR) ++ retval = -ERESTARTSYS; ++ goto err_unref; ++ } + /* safe to drop the kref from tty_driver_lookup_tty() */ + tty_kref_put(tty); + retval = tty_reopen(tty); +@@ -2087,7 +2092,11 @@ retry_open: + + if (IS_ERR(tty)) { + retval = PTR_ERR(tty); +- goto err_file; ++ if (retval != -EAGAIN || signal_pending(current)) ++ goto err_file; ++ tty_free_file(filp); ++ schedule(); ++ goto retry_open; + } + + tty_add_file(tty, filp); +@@ -2156,6 +2165,7 @@ retry_open: + return 0; + err_unlock: + mutex_unlock(&tty_mutex); ++err_unref: + /* after locks to avoid deadlock */ + if (!IS_ERR_OR_NULL(driver)) + tty_driver_kref_put(driver); +@@ -2653,6 +2663,28 @@ static int tiocsetd(struct tty_struct *t + } + + /** ++ * tiocgetd - get line discipline ++ * @tty: tty device ++ * @p: pointer to user data ++ * ++ * Retrieves the line discipline id directly from the ldisc. ++ * ++ * Locking: waits for ldisc reference (in case the line discipline ++ * is changing or the tty is being hungup) ++ */ ++ ++static int tiocgetd(struct tty_struct *tty, int __user *p) ++{ ++ struct tty_ldisc *ld; ++ int ret; ++ ++ ld = tty_ldisc_ref_wait(tty); ++ ret = put_user(ld->ops->num, p); ++ tty_ldisc_deref(ld); ++ return ret; ++} ++ ++/** + * send_break - performed time break + * @tty: device to break on + * @duration: timeout in mS +@@ -2878,7 +2910,7 @@ long tty_ioctl(struct file *file, unsign + case TIOCGSID: + return tiocgsid(tty, real_tty, p); + case TIOCGETD: +- return put_user(tty->ldisc->ops->num, (int __user *)p); ++ return tiocgetd(tty, p); + case TIOCSETD: + return tiocsetd(tty, p); + case TIOCVHANGUP: +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/tty_mutex.c linux-libre-4.4.7-gnu/drivers/tty/tty_mutex.c +--- linux-libre-4.4-gnu/drivers/tty/tty_mutex.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/tty/tty_mutex.c 2016-04-12 12:09:26.000000000 -0400 +@@ -22,6 +22,14 @@ void __lockfunc tty_lock(struct tty_stru + } + EXPORT_SYMBOL(tty_lock); + ++int tty_lock_interruptible(struct tty_struct *tty) ++{ ++ if (WARN(tty->magic != TTY_MAGIC, "L Bad %p\n", tty)) ++ return -EIO; ++ tty_kref_get(tty); ++ return mutex_lock_interruptible(&tty->legacy_mutex); ++} ++ + void __lockfunc tty_unlock(struct tty_struct *tty) + { + if (tty->magic != TTY_MAGIC) { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/chipidea/otg.c linux-libre-4.4.7-gnu/drivers/usb/chipidea/otg.c +--- linux-libre-4.4-gnu/drivers/usb/chipidea/otg.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/chipidea/otg.c 2016-04-12 12:09:26.000000000 -0400 +@@ -158,7 +158,7 @@ static void ci_otg_work(struct work_stru + int ci_hdrc_otg_init(struct ci_hdrc *ci) + { + INIT_WORK(&ci->work, ci_otg_work); +- ci->wq = create_singlethread_workqueue("ci_otg"); ++ ci->wq = create_freezable_workqueue("ci_otg"); + if (!ci->wq) { + dev_err(ci->dev, "can't create workqueue\n"); + return -ENODEV; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/class/cdc-acm.c linux-libre-4.4.7-gnu/drivers/usb/class/cdc-acm.c +--- linux-libre-4.4-gnu/drivers/usb/class/cdc-acm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/class/cdc-acm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -428,7 +428,8 @@ static void acm_read_bulk_callback(struc + set_bit(rb->index, &acm->read_urbs_free); + dev_dbg(&acm->data->dev, "%s - non-zero urb status: %d\n", + __func__, status); +- return; ++ if ((status != -ENOENT) || (urb->actual_length == 0)) ++ return; + } + + usb_mark_last_busy(acm->dev); +@@ -1113,6 +1114,9 @@ static int acm_probe(struct usb_interfac + if (quirks == NO_UNION_NORMAL) { + data_interface = usb_ifnum_to_if(usb_dev, 1); + control_interface = usb_ifnum_to_if(usb_dev, 0); ++ /* we would crash */ ++ if (!data_interface || !control_interface) ++ return -ENODEV; + goto skip_normal_probe; + } + +@@ -1404,6 +1408,8 @@ made_compressed_probe: + usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress), + NULL, acm->writesize, acm_write_bulk, snd); + snd->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; ++ if (quirks & SEND_ZERO_PACKET) ++ snd->urb->transfer_flags |= URB_ZERO_PACKET; + snd->instance = acm; + } + +@@ -1838,6 +1844,11 @@ static const struct usb_device_id acm_id + }, + #endif + ++ /*Samsung phone in firmware update mode */ ++ { USB_DEVICE(0x04e8, 0x685d), ++ .driver_info = IGNORE_DEVICE, ++ }, ++ + /* Exclude Infineon Flash Loader utility */ + { USB_DEVICE(0x058b, 0x0041), + .driver_info = IGNORE_DEVICE, +@@ -1861,6 +1872,10 @@ static const struct usb_device_id acm_id + { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, + USB_CDC_ACM_PROTO_AT_CDMA) }, + ++ { USB_DEVICE(0x1519, 0x0452), /* Intel 7260 modem */ ++ .driver_info = SEND_ZERO_PACKET, ++ }, ++ + { } + }; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/class/cdc-acm.h linux-libre-4.4.7-gnu/drivers/usb/class/cdc-acm.h +--- linux-libre-4.4-gnu/drivers/usb/class/cdc-acm.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/class/cdc-acm.h 2016-04-12 12:09:26.000000000 -0400 +@@ -134,3 +134,4 @@ struct acm { + #define IGNORE_DEVICE BIT(5) + #define QUIRK_CONTROL_LINE_STATE BIT(6) + #define CLEAR_HALT_CONDITIONS BIT(7) ++#define SEND_ZERO_PACKET BIT(8) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/driver.c linux-libre-4.4.7-gnu/drivers/usb/core/driver.c +--- linux-libre-4.4-gnu/drivers/usb/core/driver.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/core/driver.c 2016-04-12 12:09:26.000000000 -0400 +@@ -502,11 +502,15 @@ static int usb_unbind_interface(struct d + int usb_driver_claim_interface(struct usb_driver *driver, + struct usb_interface *iface, void *priv) + { +- struct device *dev = &iface->dev; ++ struct device *dev; + struct usb_device *udev; + int retval = 0; + int lpm_disable_error; + ++ if (!iface) ++ return -ENODEV; ++ ++ dev = &iface->dev; + if (dev->driver) + return -EBUSY; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/hub.c linux-libre-4.4.7-gnu/drivers/usb/core/hub.c +--- linux-libre-4.4-gnu/drivers/usb/core/hub.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/core/hub.c 2016-04-12 12:09:26.000000000 -0400 +@@ -3895,17 +3895,30 @@ static void usb_enable_link_state(struct + return; + } + +- if (usb_set_lpm_timeout(udev, state, timeout)) ++ if (usb_set_lpm_timeout(udev, state, timeout)) { + /* If we can't set the parent hub U1/U2 timeout, + * device-initiated LPM won't be allowed either, so let the xHCI + * host know that this link state won't be enabled. + */ + hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); ++ } else { ++ /* Only a configured device will accept the Set Feature ++ * U1/U2_ENABLE ++ */ ++ if (udev->actconfig) ++ usb_set_device_initiated_lpm(udev, state, true); + +- /* Only a configured device will accept the Set Feature U1/U2_ENABLE */ +- else if (udev->actconfig) +- usb_set_device_initiated_lpm(udev, state, true); +- ++ /* As soon as usb_set_lpm_timeout(timeout) returns 0, the ++ * hub-initiated LPM is enabled. Thus, LPM is enabled no ++ * matter the result of usb_set_device_initiated_lpm(). ++ * The only difference is whether device is able to initiate ++ * LPM. ++ */ ++ if (state == USB3_LPM_U1) ++ udev->usb3_lpm_u1_enabled = 1; ++ else if (state == USB3_LPM_U2) ++ udev->usb3_lpm_u2_enabled = 1; ++ } + } + + /* +@@ -3945,6 +3958,18 @@ static int usb_disable_link_state(struct + dev_warn(&udev->dev, "Could not disable xHCI %s timeout, " + "bus schedule bandwidth may be impacted.\n", + usb3_lpm_names[state]); ++ ++ /* As soon as usb_set_lpm_timeout(0) return 0, hub initiated LPM ++ * is disabled. Hub will disallows link to enter U1/U2 as well, ++ * even device is initiating LPM. Hence LPM is disabled if hub LPM ++ * timeout set to 0, no matter device-initiated LPM is disabled or ++ * not. ++ */ ++ if (state == USB3_LPM_U1) ++ udev->usb3_lpm_u1_enabled = 0; ++ else if (state == USB3_LPM_U2) ++ udev->usb3_lpm_u2_enabled = 0; ++ + return 0; + } + +@@ -3979,8 +4004,6 @@ int usb_disable_lpm(struct usb_device *u + if (usb_disable_link_state(hcd, udev, USB3_LPM_U2)) + goto enable_lpm; + +- udev->usb3_lpm_enabled = 0; +- + return 0; + + enable_lpm: +@@ -4038,8 +4061,6 @@ void usb_enable_lpm(struct usb_device *u + + usb_enable_link_state(hcd, udev, USB3_LPM_U1); + usb_enable_link_state(hcd, udev, USB3_LPM_U2); +- +- udev->usb3_lpm_enabled = 1; + } + EXPORT_SYMBOL_GPL(usb_enable_lpm); + +@@ -4256,7 +4277,7 @@ hub_port_init(struct usb_hub *hub, struc + { + struct usb_device *hdev = hub->hdev; + struct usb_hcd *hcd = bus_to_hcd(hdev->bus); +- int i, j, retval; ++ int retries, operations, retval, i; + unsigned delay = HUB_SHORT_RESET_TIME; + enum usb_device_speed oldspeed = udev->speed; + const char *speed; +@@ -4358,7 +4379,7 @@ hub_port_init(struct usb_hub *hub, struc + * first 8 bytes of the device descriptor to get the ep0 maxpacket + * value. + */ +- for (i = 0; i < GET_DESCRIPTOR_TRIES; (++i, msleep(100))) { ++ for (retries = 0; retries < GET_DESCRIPTOR_TRIES; (++retries, msleep(100))) { + bool did_new_scheme = false; + + if (use_new_scheme(udev, retry_counter)) { +@@ -4385,7 +4406,7 @@ hub_port_init(struct usb_hub *hub, struc + * 255 is for WUSB devices, we actually need to use + * 512 (WUSB1.0[4.8.1]). + */ +- for (j = 0; j < 3; ++j) { ++ for (operations = 0; operations < 3; ++operations) { + buf->bMaxPacketSize0 = 0; + r = usb_control_msg(udev, usb_rcvaddr0pipe(), + USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, +@@ -4405,7 +4426,13 @@ hub_port_init(struct usb_hub *hub, struc + r = -EPROTO; + break; + } +- if (r == 0) ++ /* ++ * Some devices time out if they are powered on ++ * when already connected. They need a second ++ * reset. But only on the first attempt, ++ * lest we get into a time out/reset loop ++ */ ++ if (r == 0 || (r == -ETIMEDOUT && retries == 0)) + break; + } + udev->descriptor.bMaxPacketSize0 = +@@ -4437,7 +4464,7 @@ hub_port_init(struct usb_hub *hub, struc + * authorization will assign the final address. + */ + if (udev->wusb == 0) { +- for (j = 0; j < SET_ADDRESS_TRIES; ++j) { ++ for (operations = 0; operations < SET_ADDRESS_TRIES; ++operations) { + retval = hub_set_address(udev, devnum); + if (retval >= 0) + break; +@@ -5365,7 +5392,6 @@ static int usb_reset_and_verify_device(s + } + + bos = udev->bos; +- udev->bos = NULL; + + for (i = 0; i < SET_CONFIG_TRIES; ++i) { + +@@ -5458,8 +5484,11 @@ done: + usb_set_usb2_hardware_lpm(udev, 1); + usb_unlocked_enable_lpm(udev); + usb_enable_ltm(udev); +- usb_release_bos_descriptor(udev); +- udev->bos = bos; ++ /* release the new BOS descriptor allocated by hub_port_init() */ ++ if (udev->bos != bos) { ++ usb_release_bos_descriptor(udev); ++ udev->bos = bos; ++ } + return 0; + + re_enumerate: +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/sysfs.c linux-libre-4.4.7-gnu/drivers/usb/core/sysfs.c +--- linux-libre-4.4-gnu/drivers/usb/core/sysfs.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/core/sysfs.c 2016-04-12 12:09:26.000000000 -0400 +@@ -531,7 +531,7 @@ static ssize_t usb2_lpm_besl_store(struc + } + static DEVICE_ATTR_RW(usb2_lpm_besl); + +-static ssize_t usb3_hardware_lpm_show(struct device *dev, ++static ssize_t usb3_hardware_lpm_u1_show(struct device *dev, + struct device_attribute *attr, char *buf) + { + struct usb_device *udev = to_usb_device(dev); +@@ -539,7 +539,7 @@ static ssize_t usb3_hardware_lpm_show(st + + usb_lock_device(udev); + +- if (udev->usb3_lpm_enabled) ++ if (udev->usb3_lpm_u1_enabled) + p = "enabled"; + else + p = "disabled"; +@@ -548,7 +548,26 @@ static ssize_t usb3_hardware_lpm_show(st + + return sprintf(buf, "%s\n", p); + } +-static DEVICE_ATTR_RO(usb3_hardware_lpm); ++static DEVICE_ATTR_RO(usb3_hardware_lpm_u1); ++ ++static ssize_t usb3_hardware_lpm_u2_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct usb_device *udev = to_usb_device(dev); ++ const char *p; ++ ++ usb_lock_device(udev); ++ ++ if (udev->usb3_lpm_u2_enabled) ++ p = "enabled"; ++ else ++ p = "disabled"; ++ ++ usb_unlock_device(udev); ++ ++ return sprintf(buf, "%s\n", p); ++} ++static DEVICE_ATTR_RO(usb3_hardware_lpm_u2); + + static struct attribute *usb2_hardware_lpm_attr[] = { + &dev_attr_usb2_hardware_lpm.attr, +@@ -562,7 +581,8 @@ static struct attribute_group usb2_hardw + }; + + static struct attribute *usb3_hardware_lpm_attr[] = { +- &dev_attr_usb3_hardware_lpm.attr, ++ &dev_attr_usb3_hardware_lpm_u1.attr, ++ &dev_attr_usb3_hardware_lpm_u2.attr, + NULL, + }; + static struct attribute_group usb3_hardware_lpm_attr_group = { +@@ -592,7 +612,8 @@ static int add_power_attributes(struct d + if (udev->usb2_hw_lpm_capable == 1) + rc = sysfs_merge_group(&dev->kobj, + &usb2_hardware_lpm_attr_group); +- if (udev->lpm_capable == 1) ++ if (udev->speed == USB_SPEED_SUPER && ++ udev->lpm_capable == 1) + rc = sysfs_merge_group(&dev->kobj, + &usb3_hardware_lpm_attr_group); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/dwc3/core.h linux-libre-4.4.7-gnu/drivers/usb/dwc3/core.h +--- linux-libre-4.4-gnu/drivers/usb/dwc3/core.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/dwc3/core.h 2016-04-12 12:09:26.000000000 -0400 +@@ -853,7 +853,6 @@ struct dwc3 { + unsigned pullups_connected:1; + unsigned resize_fifos:1; + unsigned setup_packet_pending:1; +- unsigned start_config_issued:1; + unsigned three_stage_setup:1; + unsigned usb3_lpm_capable:1; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/dwc3/ep0.c linux-libre-4.4.7-gnu/drivers/usb/dwc3/ep0.c +--- linux-libre-4.4-gnu/drivers/usb/dwc3/ep0.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/dwc3/ep0.c 2016-04-12 12:09:26.000000000 -0400 +@@ -555,7 +555,6 @@ static int dwc3_ep0_set_config(struct dw + int ret; + u32 reg; + +- dwc->start_config_issued = false; + cfg = le16_to_cpu(ctrl->wValue); + + switch (state) { +@@ -737,10 +736,6 @@ static int dwc3_ep0_std_request(struct d + dwc3_trace(trace_dwc3_ep0, "USB_REQ_SET_ISOCH_DELAY"); + ret = dwc3_ep0_set_isoch_delay(dwc, ctrl); + break; +- case USB_REQ_SET_INTERFACE: +- dwc3_trace(trace_dwc3_ep0, "USB_REQ_SET_INTERFACE"); +- dwc->start_config_issued = false; +- /* Fall through */ + default: + dwc3_trace(trace_dwc3_ep0, "Forwarding to gadget driver"); + ret = dwc3_ep0_delegate_req(dwc, ctrl); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/dwc3/gadget.c linux-libre-4.4.7-gnu/drivers/usb/dwc3/gadget.c +--- linux-libre-4.4-gnu/drivers/usb/dwc3/gadget.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/dwc3/gadget.c 2016-04-12 12:09:26.000000000 -0400 +@@ -388,24 +388,66 @@ static void dwc3_free_trb_pool(struct dw + dep->trb_pool_dma = 0; + } + ++static int dwc3_gadget_set_xfer_resource(struct dwc3 *dwc, struct dwc3_ep *dep); ++ ++/** ++ * dwc3_gadget_start_config - Configure EP resources ++ * @dwc: pointer to our controller context structure ++ * @dep: endpoint that is being enabled ++ * ++ * The assignment of transfer resources cannot perfectly follow the ++ * data book due to the fact that the controller driver does not have ++ * all knowledge of the configuration in advance. It is given this ++ * information piecemeal by the composite gadget framework after every ++ * SET_CONFIGURATION and SET_INTERFACE. Trying to follow the databook ++ * programming model in this scenario can cause errors. For two ++ * reasons: ++ * ++ * 1) The databook says to do DEPSTARTCFG for every SET_CONFIGURATION ++ * and SET_INTERFACE (8.1.5). This is incorrect in the scenario of ++ * multiple interfaces. ++ * ++ * 2) The databook does not mention doing more DEPXFERCFG for new ++ * endpoint on alt setting (8.1.6). ++ * ++ * The following simplified method is used instead: ++ * ++ * All hardware endpoints can be assigned a transfer resource and this ++ * setting will stay persistent until either a core reset or ++ * hibernation. So whenever we do a DEPSTARTCFG(0) we can go ahead and ++ * do DEPXFERCFG for every hardware endpoint as well. We are ++ * guaranteed that there are as many transfer resources as endpoints. ++ * ++ * This function is called for each endpoint when it is being enabled ++ * but is triggered only when called for EP0-out, which always happens ++ * first, and which should only happen in one of the above conditions. ++ */ + static int dwc3_gadget_start_config(struct dwc3 *dwc, struct dwc3_ep *dep) + { + struct dwc3_gadget_ep_cmd_params params; + u32 cmd; ++ int i; ++ int ret; ++ ++ if (dep->number) ++ return 0; + + memset(¶ms, 0x00, sizeof(params)); ++ cmd = DWC3_DEPCMD_DEPSTARTCFG; + +- if (dep->number != 1) { +- cmd = DWC3_DEPCMD_DEPSTARTCFG; +- /* XferRscIdx == 0 for ep0 and 2 for the remaining */ +- if (dep->number > 1) { +- if (dwc->start_config_issued) +- return 0; +- dwc->start_config_issued = true; +- cmd |= DWC3_DEPCMD_PARAM(2); +- } ++ ret = dwc3_send_gadget_ep_cmd(dwc, 0, cmd, ¶ms); ++ if (ret) ++ return ret; + +- return dwc3_send_gadget_ep_cmd(dwc, 0, cmd, ¶ms); ++ for (i = 0; i < DWC3_ENDPOINTS_NUM; i++) { ++ struct dwc3_ep *dep = dwc->eps[i]; ++ ++ if (!dep) ++ continue; ++ ++ ret = dwc3_gadget_set_xfer_resource(dwc, dep); ++ if (ret) ++ return ret; + } + + return 0; +@@ -519,10 +561,6 @@ static int __dwc3_gadget_ep_enable(struc + struct dwc3_trb *trb_st_hw; + struct dwc3_trb *trb_link; + +- ret = dwc3_gadget_set_xfer_resource(dwc, dep); +- if (ret) +- return ret; +- + dep->endpoint.desc = desc; + dep->comp_desc = comp_desc; + dep->type = usb_endpoint_type(desc); +@@ -1604,8 +1642,6 @@ static int dwc3_gadget_start(struct usb_ + } + dwc3_writel(dwc->regs, DWC3_DCFG, reg); + +- dwc->start_config_issued = false; +- + /* Start with SuperSpeed Default */ + dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512); + +@@ -2202,7 +2238,6 @@ static void dwc3_gadget_disconnect_inter + dwc3_writel(dwc->regs, DWC3_DCTL, reg); + + dwc3_disconnect_gadget(dwc); +- dwc->start_config_issued = false; + + dwc->gadget.speed = USB_SPEED_UNKNOWN; + dwc->setup_packet_pending = false; +@@ -2253,7 +2288,6 @@ static void dwc3_gadget_reset_interrupt( + + dwc3_stop_active_transfers(dwc); + dwc3_clear_stall_all_ep(dwc); +- dwc->start_config_issued = false; + + /* Reset device address to zero */ + reg = dwc3_readl(dwc->regs, DWC3_DCFG); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/xhci.c linux-libre-4.4.7-gnu/drivers/usb/host/xhci.c +--- linux-libre-4.4-gnu/drivers/usb/host/xhci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/host/xhci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1549,7 +1549,9 @@ int xhci_urb_dequeue(struct usb_hcd *hcd + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "HW died, freeing TD."); + urb_priv = urb->hcpriv; +- for (i = urb_priv->td_cnt; i < urb_priv->length; i++) { ++ for (i = urb_priv->td_cnt; ++ i < urb_priv->length && xhci->devs[urb->dev->slot_id]; ++ i++) { + td = urb_priv->td[i]; + if (!list_empty(&td->td_list)) + list_del_init(&td->td_list); +@@ -5059,6 +5061,10 @@ static int __init xhci_hcd_init(void) + BUILD_BUG_ON(sizeof(struct xhci_intr_reg) != 8*32/8); + /* xhci_run_regs has eight fields and embeds 128 xhci_intr_regs */ + BUILD_BUG_ON(sizeof(struct xhci_run_regs) != (8+8*128)*32/8); ++ ++ if (usb_disabled()) ++ return -ENODEV; ++ + return 0; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/xhci-pci.c linux-libre-4.4.7-gnu/drivers/usb/host/xhci-pci.c +--- linux-libre-4.4-gnu/drivers/usb/host/xhci-pci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/host/xhci-pci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -28,7 +28,9 @@ + #include "xhci.h" + #include "xhci-trace.h" + +-#define PORT2_SSIC_CONFIG_REG2 0x883c ++#define SSIC_PORT_NUM 2 ++#define SSIC_PORT_CFG2 0x880c ++#define SSIC_PORT_CFG2_OFFSET 0x30 + #define PROG_DONE (1 << 30) + #define SSIC_PORT_UNUSED (1 << 31) + +@@ -45,6 +47,7 @@ + #define PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI 0x22b5 + #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI 0xa12f + #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI 0x9d2f ++#define PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI 0x0aa8 + + static const char hcd_name[] = "xhci_hcd"; + +@@ -152,7 +155,8 @@ static void xhci_pci_quirks(struct devic + if (pdev->vendor == PCI_VENDOR_ID_INTEL && + (pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI || + pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI || +- pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI)) { ++ pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI || ++ pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI)) { + xhci->quirks |= XHCI_PME_STUCK_QUIRK; + } + if (pdev->vendor == PCI_VENDOR_ID_ETRON && +@@ -322,28 +326,36 @@ static void xhci_pme_quirk(struct usb_hc + struct pci_dev *pdev = to_pci_dev(hcd->self.controller); + u32 val; + void __iomem *reg; ++ int i; + + if (pdev->vendor == PCI_VENDOR_ID_INTEL && + pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI) { + +- reg = (void __iomem *) xhci->cap_regs + PORT2_SSIC_CONFIG_REG2; ++ for (i = 0; i < SSIC_PORT_NUM; i++) { ++ reg = (void __iomem *) xhci->cap_regs + ++ SSIC_PORT_CFG2 + ++ i * SSIC_PORT_CFG2_OFFSET; + +- /* Notify SSIC that SSIC profile programming is not done */ +- val = readl(reg) & ~PROG_DONE; +- writel(val, reg); ++ /* ++ * Notify SSIC that SSIC profile programming ++ * is not done. ++ */ ++ val = readl(reg) & ~PROG_DONE; ++ writel(val, reg); + +- /* Mark SSIC port as unused(suspend) or used(resume) */ +- val = readl(reg); +- if (suspend) +- val |= SSIC_PORT_UNUSED; +- else +- val &= ~SSIC_PORT_UNUSED; +- writel(val, reg); ++ /* Mark SSIC port as unused(suspend) or used(resume) */ ++ val = readl(reg); ++ if (suspend) ++ val |= SSIC_PORT_UNUSED; ++ else ++ val &= ~SSIC_PORT_UNUSED; ++ writel(val, reg); + +- /* Notify SSIC that SSIC profile programming is done */ +- val = readl(reg) | PROG_DONE; +- writel(val, reg); +- readl(reg); ++ /* Notify SSIC that SSIC profile programming is done */ ++ val = readl(reg) | PROG_DONE; ++ writel(val, reg); ++ readl(reg); ++ } + } + + reg = (void __iomem *) xhci->cap_regs + 0x80a4; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/xhci-ring.c linux-libre-4.4.7-gnu/drivers/usb/host/xhci-ring.c +--- linux-libre-4.4-gnu/drivers/usb/host/xhci-ring.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/host/xhci-ring.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2192,10 +2192,6 @@ static int process_bulk_intr_td(struct x + } + /* Fast path - was this the last TRB in the TD for this URB? */ + } else if (event_trb == td->last_trb) { +- if (td->urb_length_set && trb_comp_code == COMP_SHORT_TX) +- return finish_td(xhci, td, event_trb, event, ep, +- status, false); +- + if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) { + td->urb->actual_length = + td->urb->transfer_buffer_length - +@@ -2247,12 +2243,6 @@ static int process_bulk_intr_td(struct x + td->urb->actual_length += + TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])) - + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); +- +- if (trb_comp_code == COMP_SHORT_TX) { +- xhci_dbg(xhci, "mid bulk/intr SP, wait for last TRB event\n"); +- td->urb_length_set = true; +- return 0; +- } + } + + return finish_td(xhci, td, event_trb, event, ep, status, false); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/misc/iowarrior.c linux-libre-4.4.7-gnu/drivers/usb/misc/iowarrior.c +--- linux-libre-4.4-gnu/drivers/usb/misc/iowarrior.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/misc/iowarrior.c 2016-04-12 12:09:26.000000000 -0400 +@@ -787,6 +787,12 @@ static int iowarrior_probe(struct usb_in + iface_desc = interface->cur_altsetting; + dev->product_id = le16_to_cpu(udev->descriptor.idProduct); + ++ if (iface_desc->desc.bNumEndpoints < 1) { ++ dev_err(&interface->dev, "Invalid number of endpoints\n"); ++ retval = -EINVAL; ++ goto error; ++ } ++ + /* set up the endpoint information */ + for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { + endpoint = &iface_desc->endpoint[i].desc; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/phy/phy-msm-usb.c linux-libre-4.4.7-gnu/drivers/usb/phy/phy-msm-usb.c +--- linux-libre-4.4-gnu/drivers/usb/phy/phy-msm-usb.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/phy/phy-msm-usb.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1599,6 +1599,8 @@ static int msm_otg_read_dt(struct platfo + &motg->id.nb); + if (ret < 0) { + dev_err(&pdev->dev, "register ID notifier failed\n"); ++ extcon_unregister_notifier(motg->vbus.extcon, ++ EXTCON_USB, &motg->vbus.nb); + return ret; + } + +@@ -1660,15 +1662,6 @@ static int msm_otg_probe(struct platform + if (!motg) + return -ENOMEM; + +- pdata = dev_get_platdata(&pdev->dev); +- if (!pdata) { +- if (!np) +- return -ENXIO; +- ret = msm_otg_read_dt(pdev, motg); +- if (ret) +- return ret; +- } +- + motg->phy.otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg), + GFP_KERNEL); + if (!motg->phy.otg) +@@ -1710,6 +1703,15 @@ static int msm_otg_probe(struct platform + if (!motg->regs) + return -ENOMEM; + ++ pdata = dev_get_platdata(&pdev->dev); ++ if (!pdata) { ++ if (!np) ++ return -ENXIO; ++ ret = msm_otg_read_dt(pdev, motg); ++ if (ret) ++ return ret; ++ } ++ + /* + * NOTE: The PHYs can be multiplexed between the chipidea controller + * and the dwc3 controller, using a single bit. It is important that +@@ -1717,8 +1719,10 @@ static int msm_otg_probe(struct platform + */ + if (motg->phy_number) { + phy_select = devm_ioremap_nocache(&pdev->dev, USB2_PHY_SEL, 4); +- if (!phy_select) +- return -ENOMEM; ++ if (!phy_select) { ++ ret = -ENOMEM; ++ goto unregister_extcon; ++ } + /* Enable second PHY with the OTG port */ + writel(0x1, phy_select); + } +@@ -1728,7 +1732,8 @@ static int msm_otg_probe(struct platform + motg->irq = platform_get_irq(pdev, 0); + if (motg->irq < 0) { + dev_err(&pdev->dev, "platform_get_irq failed\n"); +- return motg->irq; ++ ret = motg->irq; ++ goto unregister_extcon; + } + + regs[0].supply = "vddcx"; +@@ -1737,7 +1742,7 @@ static int msm_otg_probe(struct platform + + ret = devm_regulator_bulk_get(motg->phy.dev, ARRAY_SIZE(regs), regs); + if (ret) +- return ret; ++ goto unregister_extcon; + + motg->vddcx = regs[0].consumer; + motg->v3p3 = regs[1].consumer; +@@ -1834,6 +1839,12 @@ disable_clks: + clk_disable_unprepare(motg->clk); + if (!IS_ERR(motg->core_clk)) + clk_disable_unprepare(motg->core_clk); ++unregister_extcon: ++ extcon_unregister_notifier(motg->id.extcon, ++ EXTCON_USB_HOST, &motg->id.nb); ++ extcon_unregister_notifier(motg->vbus.extcon, ++ EXTCON_USB, &motg->vbus.nb); ++ + return ret; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/cp210x.c linux-libre-4.4.7-gnu/drivers/usb/serial/cp210x.c +--- linux-libre-4.4-gnu/drivers/usb/serial/cp210x.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/serial/cp210x.c 2016-04-12 12:09:26.000000000 -0400 +@@ -98,6 +98,7 @@ static const struct usb_device_id id_tab + { USB_DEVICE(0x10C4, 0x81AC) }, /* MSD Dash Hawk */ + { USB_DEVICE(0x10C4, 0x81AD) }, /* INSYS USB Modem */ + { USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */ ++ { USB_DEVICE(0x10C4, 0x81D7) }, /* IAI Corp. RCB-CV-USB USB to RS485 Adaptor */ + { USB_DEVICE(0x10C4, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */ + { USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */ + { USB_DEVICE(0x10C4, 0x81E8) }, /* Zephyr Bioharness */ +@@ -160,6 +161,11 @@ static const struct usb_device_id id_tab + { USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */ + { USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */ + { USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */ ++ { USB_DEVICE(0x18EF, 0xE025) }, /* ELV Marble Sound Board 1 */ ++ { USB_DEVICE(0x1901, 0x0190) }, /* GE B850 CP2105 Recorder interface */ ++ { USB_DEVICE(0x1901, 0x0193) }, /* GE B650 CP2104 PMC interface */ ++ { USB_DEVICE(0x1901, 0x0194) }, /* GE Healthcare Remote Alarm Box */ ++ { USB_DEVICE(0x19CF, 0x3000) }, /* Parrot NMEA GPS Flight Recorder */ + { USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */ + { USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */ + { USB_DEVICE(0x1BA4, 0x0002) }, /* Silicon Labs 358x factory default */ +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/cypress_m8.c linux-libre-4.4.7-gnu/drivers/usb/serial/cypress_m8.c +--- linux-libre-4.4-gnu/drivers/usb/serial/cypress_m8.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/serial/cypress_m8.c 2016-04-12 12:09:26.000000000 -0400 +@@ -447,6 +447,11 @@ static int cypress_generic_port_probe(st + struct usb_serial *serial = port->serial; + struct cypress_private *priv; + ++ if (!port->interrupt_out_urb || !port->interrupt_in_urb) { ++ dev_err(&port->dev, "required endpoint is missing\n"); ++ return -ENODEV; ++ } ++ + priv = kzalloc(sizeof(struct cypress_private), GFP_KERNEL); + if (!priv) + return -ENOMEM; +@@ -606,12 +611,6 @@ static int cypress_open(struct tty_struc + cypress_set_termios(tty, port, &priv->tmp_termios); + + /* setup the port and start reading from the device */ +- if (!port->interrupt_in_urb) { +- dev_err(&port->dev, "%s - interrupt_in_urb is empty!\n", +- __func__); +- return -1; +- } +- + usb_fill_int_urb(port->interrupt_in_urb, serial->dev, + usb_rcvintpipe(serial->dev, port->interrupt_in_endpointAddress), + port->interrupt_in_urb->transfer_buffer, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/digi_acceleport.c linux-libre-4.4.7-gnu/drivers/usb/serial/digi_acceleport.c +--- linux-libre-4.4-gnu/drivers/usb/serial/digi_acceleport.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/serial/digi_acceleport.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1251,8 +1251,27 @@ static int digi_port_init(struct usb_ser + + static int digi_startup(struct usb_serial *serial) + { ++ struct device *dev = &serial->interface->dev; + struct digi_serial *serial_priv; + int ret; ++ int i; ++ ++ /* check whether the device has the expected number of endpoints */ ++ if (serial->num_port_pointers < serial->type->num_ports + 1) { ++ dev_err(dev, "OOB endpoints missing\n"); ++ return -ENODEV; ++ } ++ ++ for (i = 0; i < serial->type->num_ports + 1 ; i++) { ++ if (!serial->port[i]->read_urb) { ++ dev_err(dev, "bulk-in endpoint missing\n"); ++ return -ENODEV; ++ } ++ if (!serial->port[i]->write_urb) { ++ dev_err(dev, "bulk-out endpoint missing\n"); ++ return -ENODEV; ++ } ++ } + + serial_priv = kzalloc(sizeof(*serial_priv), GFP_KERNEL); + if (!serial_priv) +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/ftdi_sio.c linux-libre-4.4.7-gnu/drivers/usb/serial/ftdi_sio.c +--- linux-libre-4.4-gnu/drivers/usb/serial/ftdi_sio.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/serial/ftdi_sio.c 2016-04-12 12:09:26.000000000 -0400 +@@ -824,6 +824,7 @@ static const struct usb_device_id id_tab + { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) }, ++ { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_SCU18) }, + { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) }, + + /* Papouch devices based on FTDI chip */ +@@ -1003,6 +1004,10 @@ static const struct usb_device_id id_tab + { USB_DEVICE(FTDI_VID, CHETCO_SEASMART_DISPLAY_PID) }, + { USB_DEVICE(FTDI_VID, CHETCO_SEASMART_LITE_PID) }, + { USB_DEVICE(FTDI_VID, CHETCO_SEASMART_ANALOG_PID) }, ++ /* ICP DAS I-756xU devices */ ++ { USB_DEVICE(ICPDAS_VID, ICPDAS_I7560U_PID) }, ++ { USB_DEVICE(ICPDAS_VID, ICPDAS_I7561U_PID) }, ++ { USB_DEVICE(ICPDAS_VID, ICPDAS_I7563U_PID) }, + { } /* Terminating entry */ + }; + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/ftdi_sio_ids.h linux-libre-4.4.7-gnu/drivers/usb/serial/ftdi_sio_ids.h +--- linux-libre-4.4-gnu/drivers/usb/serial/ftdi_sio_ids.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/serial/ftdi_sio_ids.h 2016-04-12 12:09:26.000000000 -0400 +@@ -615,6 +615,7 @@ + */ + #define RATOC_VENDOR_ID 0x0584 + #define RATOC_PRODUCT_ID_USB60F 0xb020 ++#define RATOC_PRODUCT_ID_SCU18 0xb03a + + /* + * Infineon Technologies +@@ -871,6 +872,14 @@ + #define NOVITUS_BONO_E_PID 0x6010 + + /* ++ * ICPDAS I-756*U devices ++ */ ++#define ICPDAS_VID 0x1b5c ++#define ICPDAS_I7560U_PID 0x0103 ++#define ICPDAS_I7561U_PID 0x0104 ++#define ICPDAS_I7563U_PID 0x0105 ++ ++/* + * RT Systems programming cables for various ham radios + */ + #define RTSYSTEMS_VID 0x2100 /* Vendor ID */ +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/mct_u232.c linux-libre-4.4.7-gnu/drivers/usb/serial/mct_u232.c +--- linux-libre-4.4-gnu/drivers/usb/serial/mct_u232.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/serial/mct_u232.c 2016-04-12 12:09:26.000000000 -0400 +@@ -376,14 +376,21 @@ static void mct_u232_msr_to_state(struct + + static int mct_u232_port_probe(struct usb_serial_port *port) + { ++ struct usb_serial *serial = port->serial; + struct mct_u232_private *priv; + ++ /* check first to simplify error handling */ ++ if (!serial->port[1] || !serial->port[1]->interrupt_in_urb) { ++ dev_err(&port->dev, "expected endpoint missing\n"); ++ return -ENODEV; ++ } ++ + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + /* Use second interrupt-in endpoint for reading. */ +- priv->read_urb = port->serial->port[1]->interrupt_in_urb; ++ priv->read_urb = serial->port[1]->interrupt_in_urb; + priv->read_urb->context = port; + + spin_lock_init(&priv->lock); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/option.c linux-libre-4.4.7-gnu/drivers/usb/serial/option.c +--- linux-libre-4.4-gnu/drivers/usb/serial/option.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/serial/option.c 2016-04-12 12:09:26.000000000 -0400 +@@ -268,6 +268,9 @@ static void option_instat_callback(struc + #define TELIT_PRODUCT_CC864_SINGLE 0x1006 + #define TELIT_PRODUCT_DE910_DUAL 0x1010 + #define TELIT_PRODUCT_UE910_V2 0x1012 ++#define TELIT_PRODUCT_LE922_USBCFG0 0x1042 ++#define TELIT_PRODUCT_LE922_USBCFG3 0x1043 ++#define TELIT_PRODUCT_LE922_USBCFG5 0x1045 + #define TELIT_PRODUCT_LE920 0x1200 + #define TELIT_PRODUCT_LE910 0x1201 + +@@ -313,6 +316,7 @@ static void option_instat_callback(struc + #define TOSHIBA_PRODUCT_G450 0x0d45 + + #define ALINK_VENDOR_ID 0x1e0e ++#define SIMCOM_PRODUCT_SIM7100E 0x9001 /* Yes, ALINK_VENDOR_ID */ + #define ALINK_PRODUCT_PH300 0x9100 + #define ALINK_PRODUCT_3GU 0x9200 + +@@ -605,6 +609,10 @@ static const struct option_blacklist_inf + .reserved = BIT(3) | BIT(4), + }; + ++static const struct option_blacklist_info simcom_sim7100e_blacklist = { ++ .reserved = BIT(5) | BIT(6), ++}; ++ + static const struct option_blacklist_info telit_le910_blacklist = { + .sendsetup = BIT(0), + .reserved = BIT(1) | BIT(2), +@@ -615,6 +623,16 @@ static const struct option_blacklist_inf + .reserved = BIT(1) | BIT(5), + }; + ++static const struct option_blacklist_info telit_le922_blacklist_usbcfg0 = { ++ .sendsetup = BIT(2), ++ .reserved = BIT(0) | BIT(1) | BIT(3), ++}; ++ ++static const struct option_blacklist_info telit_le922_blacklist_usbcfg3 = { ++ .sendsetup = BIT(0), ++ .reserved = BIT(1) | BIT(2) | BIT(3), ++}; ++ + static const struct usb_device_id option_ids[] = { + { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) }, + { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) }, +@@ -1110,9 +1128,13 @@ static const struct usb_device_id option + { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) }, + { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) }, + { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */ ++ { USB_DEVICE_AND_INTERFACE_INFO(QUALCOMM_VENDOR_ID, 0x6001, 0xff, 0xff, 0xff), /* 4G LTE usb-modem U901 */ ++ .driver_info = (kernel_ulong_t)&net_intf3_blacklist }, + { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */ + { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */ + { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */ ++ { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9003), /* Quectel UC20 */ ++ .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, + { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) }, + { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) }, + { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6003), +@@ -1160,6 +1182,12 @@ static const struct usb_device_id option + { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_CC864_SINGLE) }, + { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_DE910_DUAL) }, + { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UE910_V2) }, ++ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG0), ++ .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 }, ++ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG3), ++ .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 }, ++ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG5, 0xff), ++ .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 }, + { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910), + .driver_info = (kernel_ulong_t)&telit_le910_blacklist }, + { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920), +@@ -1629,6 +1657,8 @@ static const struct usb_device_id option + { USB_DEVICE(ALINK_VENDOR_ID, 0x9000) }, + { USB_DEVICE(ALINK_VENDOR_ID, ALINK_PRODUCT_PH300) }, + { USB_DEVICE_AND_INTERFACE_INFO(ALINK_VENDOR_ID, ALINK_PRODUCT_3GU, 0xff, 0xff, 0xff) }, ++ { USB_DEVICE(ALINK_VENDOR_ID, SIMCOM_PRODUCT_SIM7100E), ++ .driver_info = (kernel_ulong_t)&simcom_sim7100e_blacklist }, + { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S_X200), + .driver_info = (kernel_ulong_t)&alcatel_x200_blacklist + }, +@@ -1679,7 +1709,7 @@ static const struct usb_device_id option + { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_P) }, + { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8), + .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, +- { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX) }, ++ { USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX, 0xff) }, + { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PLXX), + .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, + { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) }, +@@ -1788,6 +1818,8 @@ static const struct usb_device_id option + { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d02, 0xff, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x02, 0x01) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x00, 0x00) }, ++ { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e19, 0xff), /* D-Link DWM-221 B1 */ ++ .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, + { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */ + { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) }, /* OLICARD300 - MT6225 */ +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/qcserial.c linux-libre-4.4.7-gnu/drivers/usb/serial/qcserial.c +--- linux-libre-4.4-gnu/drivers/usb/serial/qcserial.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/serial/qcserial.c 2016-04-12 12:09:26.000000000 -0400 +@@ -157,14 +157,17 @@ static const struct usb_device_id id_tab + {DEVICE_SWI(0x1199, 0x9056)}, /* Sierra Wireless Modem */ + {DEVICE_SWI(0x1199, 0x9060)}, /* Sierra Wireless Modem */ + {DEVICE_SWI(0x1199, 0x9061)}, /* Sierra Wireless Modem */ +- {DEVICE_SWI(0x1199, 0x9070)}, /* Sierra Wireless MC74xx/EM74xx */ +- {DEVICE_SWI(0x1199, 0x9071)}, /* Sierra Wireless MC74xx/EM74xx */ ++ {DEVICE_SWI(0x1199, 0x9070)}, /* Sierra Wireless MC74xx */ ++ {DEVICE_SWI(0x1199, 0x9071)}, /* Sierra Wireless MC74xx */ ++ {DEVICE_SWI(0x1199, 0x9078)}, /* Sierra Wireless EM74xx */ ++ {DEVICE_SWI(0x1199, 0x9079)}, /* Sierra Wireless EM74xx */ + {DEVICE_SWI(0x413c, 0x81a2)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */ + {DEVICE_SWI(0x413c, 0x81a3)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */ + {DEVICE_SWI(0x413c, 0x81a4)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */ + {DEVICE_SWI(0x413c, 0x81a8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */ + {DEVICE_SWI(0x413c, 0x81a9)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */ + {DEVICE_SWI(0x413c, 0x81b1)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */ ++ {DEVICE_SWI(0x413c, 0x81b3)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */ + + /* Huawei devices */ + {DEVICE_HWI(0x03f0, 0x581d)}, /* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */ +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/visor.c linux-libre-4.4.7-gnu/drivers/usb/serial/visor.c +--- linux-libre-4.4-gnu/drivers/usb/serial/visor.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/serial/visor.c 2016-04-12 12:09:26.000000000 -0400 +@@ -544,6 +544,11 @@ static int treo_attach(struct usb_serial + (serial->num_interrupt_in == 0)) + return 0; + ++ if (serial->num_bulk_in < 2 || serial->num_interrupt_in < 2) { ++ dev_err(&serial->interface->dev, "missing endpoints\n"); ++ return -ENODEV; ++ } ++ + /* + * It appears that Treos and Kyoceras want to use the + * 1st bulk in endpoint to communicate with the 2nd bulk out endpoint, +@@ -597,8 +602,10 @@ static int clie_5_attach(struct usb_seri + */ + + /* some sanity check */ +- if (serial->num_ports < 2) +- return -1; ++ if (serial->num_bulk_out < 2) { ++ dev_err(&serial->interface->dev, "missing bulk out endpoints\n"); ++ return -ENODEV; ++ } + + /* port 0 now uses the modified endpoint Address */ + port = serial->port[0]; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/storage/uas.c linux-libre-4.4.7-gnu/drivers/usb/storage/uas.c +--- linux-libre-4.4-gnu/drivers/usb/storage/uas.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/usb/storage/uas.c 2016-04-12 12:09:26.000000000 -0400 +@@ -812,7 +812,7 @@ static struct scsi_host_template uas_hos + .slave_configure = uas_slave_configure, + .eh_abort_handler = uas_eh_abort_handler, + .eh_bus_reset_handler = uas_eh_bus_reset_handler, +- .can_queue = 65536, /* Is there a limit on the _host_ ? */ ++ .can_queue = MAX_CMNDS, + .this_id = -1, + .sg_tablesize = SG_NONE, + .skip_settle_delay = 1, +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/vfio/pci/vfio_pci.c linux-libre-4.4.7-gnu/drivers/vfio/pci/vfio_pci.c +--- linux-libre-4.4-gnu/drivers/vfio/pci/vfio_pci.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/vfio/pci/vfio_pci.c 2016-04-12 12:09:26.000000000 -0400 +@@ -446,7 +446,8 @@ static long vfio_pci_ioctl(void *device_ + info.num_regions = VFIO_PCI_NUM_REGIONS; + info.num_irqs = VFIO_PCI_NUM_IRQS; + +- return copy_to_user((void __user *)arg, &info, minsz); ++ return copy_to_user((void __user *)arg, &info, minsz) ? ++ -EFAULT : 0; + + } else if (cmd == VFIO_DEVICE_GET_REGION_INFO) { + struct pci_dev *pdev = vdev->pdev; +@@ -520,7 +521,8 @@ static long vfio_pci_ioctl(void *device_ + return -EINVAL; + } + +- return copy_to_user((void __user *)arg, &info, minsz); ++ return copy_to_user((void __user *)arg, &info, minsz) ? ++ -EFAULT : 0; + + } else if (cmd == VFIO_DEVICE_GET_IRQ_INFO) { + struct vfio_irq_info info; +@@ -555,7 +557,8 @@ static long vfio_pci_ioctl(void *device_ + else + info.flags |= VFIO_IRQ_INFO_NORESIZE; + +- return copy_to_user((void __user *)arg, &info, minsz); ++ return copy_to_user((void __user *)arg, &info, minsz) ? ++ -EFAULT : 0; + + } else if (cmd == VFIO_DEVICE_SET_IRQS) { + struct vfio_irq_set hdr; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/vfio/platform/vfio_platform_common.c linux-libre-4.4.7-gnu/drivers/vfio/platform/vfio_platform_common.c +--- linux-libre-4.4-gnu/drivers/vfio/platform/vfio_platform_common.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/vfio/platform/vfio_platform_common.c 2016-04-12 12:09:26.000000000 -0400 +@@ -219,7 +219,8 @@ static long vfio_platform_ioctl(void *de + info.num_regions = vdev->num_regions; + info.num_irqs = vdev->num_irqs; + +- return copy_to_user((void __user *)arg, &info, minsz); ++ return copy_to_user((void __user *)arg, &info, minsz) ? ++ -EFAULT : 0; + + } else if (cmd == VFIO_DEVICE_GET_REGION_INFO) { + struct vfio_region_info info; +@@ -240,7 +241,8 @@ static long vfio_platform_ioctl(void *de + info.size = vdev->regions[info.index].size; + info.flags = vdev->regions[info.index].flags; + +- return copy_to_user((void __user *)arg, &info, minsz); ++ return copy_to_user((void __user *)arg, &info, minsz) ? ++ -EFAULT : 0; + + } else if (cmd == VFIO_DEVICE_GET_IRQ_INFO) { + struct vfio_irq_info info; +@@ -259,7 +261,8 @@ static long vfio_platform_ioctl(void *de + info.flags = vdev->irqs[info.index].flags; + info.count = vdev->irqs[info.index].count; + +- return copy_to_user((void __user *)arg, &info, minsz); ++ return copy_to_user((void __user *)arg, &info, minsz) ? ++ -EFAULT : 0; + + } else if (cmd == VFIO_DEVICE_SET_IRQS) { + struct vfio_irq_set hdr; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/vfio/vfio_iommu_type1.c linux-libre-4.4.7-gnu/drivers/vfio/vfio_iommu_type1.c +--- linux-libre-4.4-gnu/drivers/vfio/vfio_iommu_type1.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/vfio/vfio_iommu_type1.c 2016-04-12 12:09:26.000000000 -0400 +@@ -999,7 +999,8 @@ static long vfio_iommu_type1_ioctl(void + + info.iova_pgsizes = vfio_pgsize_bitmap(iommu); + +- return copy_to_user((void __user *)arg, &info, minsz); ++ return copy_to_user((void __user *)arg, &info, minsz) ? ++ -EFAULT : 0; + + } else if (cmd == VFIO_IOMMU_MAP_DMA) { + struct vfio_iommu_type1_dma_map map; +@@ -1032,7 +1033,8 @@ static long vfio_iommu_type1_ioctl(void + if (ret) + return ret; + +- return copy_to_user((void __user *)arg, &unmap, minsz); ++ return copy_to_user((void __user *)arg, &unmap, minsz) ? ++ -EFAULT : 0; + } + + return -ENOTTY; +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/console/fbcon.c linux-libre-4.4.7-gnu/drivers/video/console/fbcon.c +--- linux-libre-4.4-gnu/drivers/video/console/fbcon.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/video/console/fbcon.c 2016-04-12 12:09:26.000000000 -0400 +@@ -709,6 +709,7 @@ static int con2fb_acquire_newinfo(struct + } + + if (!err) { ++ ops->cur_blink_jiffies = HZ / 5; + info->fbcon_par = ops; + + if (vc) +@@ -956,6 +957,7 @@ static const char *fbcon_startup(void) + ops->currcon = -1; + ops->graphics = 1; + ops->cur_rotate = -1; ++ ops->cur_blink_jiffies = HZ / 5; + info->fbcon_par = ops; + p->con_rotate = initial_rotation; + set_blitting_type(vc, info); +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/virtio/virtio_balloon.c linux-libre-4.4.7-gnu/drivers/virtio/virtio_balloon.c +--- linux-libre-4.4-gnu/drivers/virtio/virtio_balloon.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/virtio/virtio_balloon.c 2016-04-12 12:09:26.000000000 -0400 +@@ -209,8 +209,8 @@ static unsigned leak_balloon(struct virt + */ + if (vb->num_pfns != 0) + tell_host(vb, vb->deflate_vq); +- mutex_unlock(&vb->balloon_lock); + release_pages_balloon(vb); ++ mutex_unlock(&vb->balloon_lock); + return num_freed_pages; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/virtio/virtio_pci_common.c linux-libre-4.4.7-gnu/drivers/virtio/virtio_pci_common.c +--- linux-libre-4.4-gnu/drivers/virtio/virtio_pci_common.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/virtio/virtio_pci_common.c 2016-04-12 12:09:26.000000000 -0400 +@@ -545,6 +545,7 @@ err_enable_device: + static void virtio_pci_remove(struct pci_dev *pci_dev) + { + struct virtio_pci_device *vp_dev = pci_get_drvdata(pci_dev); ++ struct device *dev = get_device(&vp_dev->vdev.dev); + + unregister_virtio_device(&vp_dev->vdev); + +@@ -554,6 +555,7 @@ static void virtio_pci_remove(struct pci + virtio_pci_modern_remove(vp_dev); + + pci_disable_device(pci_dev); ++ put_device(dev); + } + + static struct pci_driver virtio_pci_driver = { +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/watchdog/rc32434_wdt.c linux-libre-4.4.7-gnu/drivers/watchdog/rc32434_wdt.c +--- linux-libre-4.4-gnu/drivers/watchdog/rc32434_wdt.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/watchdog/rc32434_wdt.c 2016-04-12 12:09:26.000000000 -0400 +@@ -237,7 +237,7 @@ static long rc32434_wdt_ioctl(struct fil + return -EINVAL; + /* Fall through */ + case WDIOC_GETTIMEOUT: +- return copy_to_user(argp, &timeout, sizeof(int)); ++ return copy_to_user(argp, &timeout, sizeof(int)) ? -EFAULT : 0; + default: + return -ENOTTY; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/xen-pciback/pciback_ops.c linux-libre-4.4.7-gnu/drivers/xen/xen-pciback/pciback_ops.c +--- linux-libre-4.4-gnu/drivers/xen/xen-pciback/pciback_ops.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/xen/xen-pciback/pciback_ops.c 2016-04-12 12:09:26.000000000 -0400 +@@ -227,8 +227,9 @@ int xen_pcibk_enable_msix(struct xen_pci + /* + * PCI_COMMAND_MEMORY must be enabled, otherwise we may not be able + * to access the BARs where the MSI-X entries reside. ++ * But VF devices are unique in which the PF needs to be checked. + */ +- pci_read_config_word(dev, PCI_COMMAND, &cmd); ++ pci_read_config_word(pci_physfn(dev), PCI_COMMAND, &cmd); + if (dev->msi_enabled || !(cmd & PCI_COMMAND_MEMORY)) + return -ENXIO; + +@@ -332,6 +333,9 @@ void xen_pcibk_do_op(struct work_struct + struct xen_pcibk_dev_data *dev_data = NULL; + struct xen_pci_op *op = &pdev->op; + int test_intx = 0; ++#ifdef CONFIG_PCI_MSI ++ unsigned int nr = 0; ++#endif + + *op = pdev->sh_info->op; + barrier(); +@@ -360,6 +364,7 @@ void xen_pcibk_do_op(struct work_struct + op->err = xen_pcibk_disable_msi(pdev, dev, op); + break; + case XEN_PCI_OP_enable_msix: ++ nr = op->value; + op->err = xen_pcibk_enable_msix(pdev, dev, op); + break; + case XEN_PCI_OP_disable_msix: +@@ -382,7 +387,7 @@ void xen_pcibk_do_op(struct work_struct + if (op->cmd == XEN_PCI_OP_enable_msix && op->err == 0) { + unsigned int i; + +- for (i = 0; i < op->value; i++) ++ for (i = 0; i < nr; i++) + pdev->sh_info->op.msix_entries[i].vector = + op->msix_entries[i].vector; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/xen-scsiback.c linux-libre-4.4.7-gnu/drivers/xen/xen-scsiback.c +--- linux-libre-4.4-gnu/drivers/xen/xen-scsiback.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/drivers/xen/xen-scsiback.c 2016-04-12 12:09:26.000000000 -0400 +@@ -939,12 +939,12 @@ out: + spin_unlock_irqrestore(&info->v2p_lock, flags); + + out_free: +- mutex_lock(&tpg->tv_tpg_mutex); +- tpg->tv_tpg_fe_count--; +- mutex_unlock(&tpg->tv_tpg_mutex); +- +- if (err) ++ if (err) { ++ mutex_lock(&tpg->tv_tpg_mutex); ++ tpg->tv_tpg_fe_count--; ++ mutex_unlock(&tpg->tv_tpg_mutex); + kfree(new); ++ } + + return err; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/async-thread.c linux-libre-4.4.7-gnu/fs/btrfs/async-thread.c +--- linux-libre-4.4-gnu/fs/btrfs/async-thread.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/async-thread.c 2016-04-12 12:09:26.000000000 -0400 +@@ -328,8 +328,8 @@ static inline void __btrfs_queue_work(st + list_add_tail(&work->ordered_list, &wq->ordered_list); + spin_unlock_irqrestore(&wq->list_lock, flags); + } +- queue_work(wq->normal_wq, &work->normal_work); + trace_btrfs_work_queued(work); ++ queue_work(wq->normal_wq, &work->normal_work); + } + + void btrfs_queue_work(struct btrfs_workqueue *wq, +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/backref.c linux-libre-4.4.7-gnu/fs/btrfs/backref.c +--- linux-libre-4.4-gnu/fs/btrfs/backref.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/backref.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1417,7 +1417,8 @@ char *btrfs_ref_to_path(struct btrfs_roo + read_extent_buffer(eb, dest + bytes_left, + name_off, name_len); + if (eb != eb_in) { +- btrfs_tree_read_unlock_blocking(eb); ++ if (!path->skip_locking) ++ btrfs_tree_read_unlock_blocking(eb); + free_extent_buffer(eb); + } + ret = btrfs_find_item(fs_root, path, parent, 0, +@@ -1437,9 +1438,10 @@ char *btrfs_ref_to_path(struct btrfs_roo + eb = path->nodes[0]; + /* make sure we can use eb after releasing the path */ + if (eb != eb_in) { +- atomic_inc(&eb->refs); +- btrfs_tree_read_lock(eb); +- btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK); ++ if (!path->skip_locking) ++ btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK); ++ path->nodes[0] = NULL; ++ path->locks[0] = 0; + } + btrfs_release_path(path); + iref = btrfs_item_ptr(eb, slot, struct btrfs_inode_ref); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/ctree.h linux-libre-4.4.7-gnu/fs/btrfs/ctree.h +--- linux-libre-4.4-gnu/fs/btrfs/ctree.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/ctree.h 2016-04-12 12:09:26.000000000 -0400 +@@ -1572,7 +1572,7 @@ struct btrfs_fs_info { + + spinlock_t delayed_iput_lock; + struct list_head delayed_iputs; +- struct rw_semaphore delayed_iput_sem; ++ struct mutex cleaner_delayed_iput_mutex; + + /* this protects tree_mod_seq_list */ + spinlock_t tree_mod_seq_lock; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/delayed-inode.c linux-libre-4.4.7-gnu/fs/btrfs/delayed-inode.c +--- linux-libre-4.4-gnu/fs/btrfs/delayed-inode.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/delayed-inode.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1694,7 +1694,7 @@ int btrfs_should_delete_dir_index(struct + * + */ + int btrfs_readdir_delayed_dir_index(struct dir_context *ctx, +- struct list_head *ins_list) ++ struct list_head *ins_list, bool *emitted) + { + struct btrfs_dir_item *di; + struct btrfs_delayed_item *curr, *next; +@@ -1738,6 +1738,7 @@ int btrfs_readdir_delayed_dir_index(stru + + if (over) + return 1; ++ *emitted = true; + } + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/delayed-inode.h linux-libre-4.4.7-gnu/fs/btrfs/delayed-inode.h +--- linux-libre-4.4-gnu/fs/btrfs/delayed-inode.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/delayed-inode.h 2016-04-12 12:09:26.000000000 -0400 +@@ -144,7 +144,7 @@ void btrfs_put_delayed_items(struct list + int btrfs_should_delete_dir_index(struct list_head *del_list, + u64 index); + int btrfs_readdir_delayed_dir_index(struct dir_context *ctx, +- struct list_head *ins_list); ++ struct list_head *ins_list, bool *emitted); + + /* for init */ + int __init btrfs_delayed_inode_init(void); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/disk-io.c linux-libre-4.4.7-gnu/fs/btrfs/disk-io.c +--- linux-libre-4.4-gnu/fs/btrfs/disk-io.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/disk-io.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1582,8 +1582,23 @@ int btrfs_init_fs_root(struct btrfs_root + ret = get_anon_bdev(&root->anon_dev); + if (ret) + goto free_writers; ++ ++ mutex_lock(&root->objectid_mutex); ++ ret = btrfs_find_highest_objectid(root, ++ &root->highest_objectid); ++ if (ret) { ++ mutex_unlock(&root->objectid_mutex); ++ goto free_root_dev; ++ } ++ ++ ASSERT(root->highest_objectid <= BTRFS_LAST_FREE_OBJECTID); ++ ++ mutex_unlock(&root->objectid_mutex); ++ + return 0; + ++free_root_dev: ++ free_anon_bdev(root->anon_dev); + free_writers: + btrfs_free_subvolume_writers(root->subv_writers); + fail: +@@ -1762,7 +1777,6 @@ static int cleaner_kthread(void *arg) + int again; + struct btrfs_trans_handle *trans; + +- set_freezable(); + do { + again = 0; + +@@ -1782,7 +1796,10 @@ static int cleaner_kthread(void *arg) + goto sleep; + } + ++ mutex_lock(&root->fs_info->cleaner_delayed_iput_mutex); + btrfs_run_delayed_iputs(root); ++ mutex_unlock(&root->fs_info->cleaner_delayed_iput_mutex); ++ + again = btrfs_clean_one_deleted_snapshot(root); + mutex_unlock(&root->fs_info->cleaner_mutex); + +@@ -2542,8 +2559,8 @@ int open_ctree(struct super_block *sb, + mutex_init(&fs_info->delete_unused_bgs_mutex); + mutex_init(&fs_info->reloc_mutex); + mutex_init(&fs_info->delalloc_root_mutex); ++ mutex_init(&fs_info->cleaner_delayed_iput_mutex); + seqlock_init(&fs_info->profiles_lock); +- init_rwsem(&fs_info->delayed_iput_sem); + + INIT_LIST_HEAD(&fs_info->dirty_cowonly_roots); + INIT_LIST_HEAD(&fs_info->space_info); +@@ -2668,6 +2685,7 @@ int open_ctree(struct super_block *sb, + if (btrfs_check_super_csum(bh->b_data)) { + printk(KERN_ERR "BTRFS: superblock checksum mismatch\n"); + err = -EINVAL; ++ brelse(bh); + goto fail_alloc; + } + +@@ -2900,6 +2918,18 @@ retry_root_backup: + tree_root->commit_root = btrfs_root_node(tree_root); + btrfs_set_root_refs(&tree_root->root_item, 1); + ++ mutex_lock(&tree_root->objectid_mutex); ++ ret = btrfs_find_highest_objectid(tree_root, ++ &tree_root->highest_objectid); ++ if (ret) { ++ mutex_unlock(&tree_root->objectid_mutex); ++ goto recovery_tree_root; ++ } ++ ++ ASSERT(tree_root->highest_objectid <= BTRFS_LAST_FREE_OBJECTID); ++ ++ mutex_unlock(&tree_root->objectid_mutex); ++ + ret = btrfs_read_roots(fs_info, tree_root); + if (ret) + goto recovery_tree_root; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/extent-tree.c linux-libre-4.4.7-gnu/fs/btrfs/extent-tree.c +--- linux-libre-4.4-gnu/fs/btrfs/extent-tree.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/extent-tree.c 2016-04-12 12:09:26.000000000 -0400 +@@ -4086,8 +4086,10 @@ commit_trans: + !atomic_read(&root->fs_info->open_ioctl_trans)) { + need_commit--; + +- if (need_commit > 0) ++ if (need_commit > 0) { ++ btrfs_start_delalloc_roots(fs_info, 0, -1); + btrfs_wait_ordered_roots(fs_info, -1); ++ } + + trans = btrfs_join_transaction(root); + if (IS_ERR(trans)) +@@ -4100,11 +4102,12 @@ commit_trans: + if (ret) + return ret; + /* +- * make sure that all running delayed iput are +- * done ++ * The cleaner kthread might still be doing iput ++ * operations. Wait for it to finish so that ++ * more space is released. + */ +- down_write(&root->fs_info->delayed_iput_sem); +- up_write(&root->fs_info->delayed_iput_sem); ++ mutex_lock(&root->fs_info->cleaner_delayed_iput_mutex); ++ mutex_unlock(&root->fs_info->cleaner_delayed_iput_mutex); + goto again; + } else { + btrfs_end_transaction(trans, root); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/inode.c linux-libre-4.4.7-gnu/fs/btrfs/inode.c +--- linux-libre-4.4-gnu/fs/btrfs/inode.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/inode.c 2016-04-12 12:09:26.000000000 -0400 +@@ -3142,8 +3142,6 @@ void btrfs_run_delayed_iputs(struct btrf + if (empty) + return; + +- down_read(&fs_info->delayed_iput_sem); +- + spin_lock(&fs_info->delayed_iput_lock); + list_splice_init(&fs_info->delayed_iputs, &list); + spin_unlock(&fs_info->delayed_iput_lock); +@@ -3154,8 +3152,6 @@ void btrfs_run_delayed_iputs(struct btrf + iput(delayed->inode); + kfree(delayed); + } +- +- up_read(&root->fs_info->delayed_iput_sem); + } + + /* +@@ -5741,6 +5737,7 @@ static int btrfs_real_readdir(struct fil + char *name_ptr; + int name_len; + int is_curr = 0; /* ctx->pos points to the current index? */ ++ bool emitted; + + /* FIXME, use a real flag for deciding about the key type */ + if (root->fs_info->tree_root == root) +@@ -5769,6 +5766,7 @@ static int btrfs_real_readdir(struct fil + if (ret < 0) + goto err; + ++ emitted = false; + while (1) { + leaf = path->nodes[0]; + slot = path->slots[0]; +@@ -5848,6 +5846,7 @@ skip: + + if (over) + goto nopos; ++ emitted = true; + di_len = btrfs_dir_name_len(leaf, di) + + btrfs_dir_data_len(leaf, di) + sizeof(*di); + di_cur += di_len; +@@ -5860,11 +5859,20 @@ next: + if (key_type == BTRFS_DIR_INDEX_KEY) { + if (is_curr) + ctx->pos++; +- ret = btrfs_readdir_delayed_dir_index(ctx, &ins_list); ++ ret = btrfs_readdir_delayed_dir_index(ctx, &ins_list, &emitted); + if (ret) + goto nopos; + } + ++ /* ++ * If we haven't emitted any dir entry, we must not touch ctx->pos as ++ * it was was set to the termination value in previous call. We assume ++ * that "." and ".." were emitted if we reach this point and set the ++ * termination value as well for an empty directory. ++ */ ++ if (ctx->pos > 2 && !emitted) ++ goto nopos; ++ + /* Reached end of directory/root. Bump pos past the last item. */ + ctx->pos++; + +@@ -6481,7 +6489,7 @@ out_unlock_inode: + static int btrfs_link(struct dentry *old_dentry, struct inode *dir, + struct dentry *dentry) + { +- struct btrfs_trans_handle *trans; ++ struct btrfs_trans_handle *trans = NULL; + struct btrfs_root *root = BTRFS_I(dir)->root; + struct inode *inode = d_inode(old_dentry); + u64 index; +@@ -6507,6 +6515,7 @@ static int btrfs_link(struct dentry *old + trans = btrfs_start_transaction(root, 5); + if (IS_ERR(trans)) { + err = PTR_ERR(trans); ++ trans = NULL; + goto fail; + } + +@@ -6540,9 +6549,10 @@ static int btrfs_link(struct dentry *old + btrfs_log_new_name(trans, inode, NULL, parent); + } + +- btrfs_end_transaction(trans, root); + btrfs_balance_delayed_items(root); + fail: ++ if (trans) ++ btrfs_end_transaction(trans, root); + if (drop_inode) { + inode_dec_link_count(inode); + iput(inode); +@@ -7985,6 +7995,7 @@ static void btrfs_endio_direct_read(stru + + kfree(dip); + ++ dio_bio->bi_error = bio->bi_error; + dio_end_io(dio_bio, bio->bi_error); + + if (io_bio->end_io) +@@ -8030,6 +8041,7 @@ out_test: + + kfree(dip); + ++ dio_bio->bi_error = bio->bi_error; + dio_end_io(dio_bio, bio->bi_error); + bio_put(bio); + } +@@ -8534,15 +8546,28 @@ int btrfs_readpage(struct file *file, st + static int btrfs_writepage(struct page *page, struct writeback_control *wbc) + { + struct extent_io_tree *tree; +- ++ struct inode *inode = page->mapping->host; ++ int ret; + + if (current->flags & PF_MEMALLOC) { + redirty_page_for_writepage(wbc, page); + unlock_page(page); + return 0; + } ++ ++ /* ++ * If we are under memory pressure we will call this directly from the ++ * VM, we need to make sure we have the inode referenced for the ordered ++ * extent. If not just return like we didn't do anything. ++ */ ++ if (!igrab(inode)) { ++ redirty_page_for_writepage(wbc, page); ++ return AOP_WRITEPAGE_ACTIVATE; ++ } + tree = &BTRFS_I(page->mapping->host)->io_tree; +- return extent_write_full_page(tree, page, btrfs_get_extent, wbc); ++ ret = extent_write_full_page(tree, page, btrfs_get_extent, wbc); ++ btrfs_add_delayed_iput(inode); ++ return ret; + } + + static int btrfs_writepages(struct address_space *mapping, +@@ -9636,9 +9661,11 @@ static int btrfs_symlink(struct inode *d + /* + * 2 items for inode item and ref + * 2 items for dir items ++ * 1 item for updating parent inode item ++ * 1 item for the inline extent item + * 1 item for xattr if selinux is on + */ +- trans = btrfs_start_transaction(root, 5); ++ trans = btrfs_start_transaction(root, 7); + if (IS_ERR(trans)) + return PTR_ERR(trans); + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/inode-map.c linux-libre-4.4.7-gnu/fs/btrfs/inode-map.c +--- linux-libre-4.4-gnu/fs/btrfs/inode-map.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/inode-map.c 2016-04-12 12:09:26.000000000 -0400 +@@ -515,7 +515,7 @@ out: + return ret; + } + +-static int btrfs_find_highest_objectid(struct btrfs_root *root, u64 *objectid) ++int btrfs_find_highest_objectid(struct btrfs_root *root, u64 *objectid) + { + struct btrfs_path *path; + int ret; +@@ -555,13 +555,6 @@ int btrfs_find_free_objectid(struct btrf + int ret; + mutex_lock(&root->objectid_mutex); + +- if (unlikely(root->highest_objectid < BTRFS_FIRST_FREE_OBJECTID)) { +- ret = btrfs_find_highest_objectid(root, +- &root->highest_objectid); +- if (ret) +- goto out; +- } +- + if (unlikely(root->highest_objectid >= BTRFS_LAST_FREE_OBJECTID)) { + ret = -ENOSPC; + goto out; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/inode-map.h linux-libre-4.4.7-gnu/fs/btrfs/inode-map.h +--- linux-libre-4.4-gnu/fs/btrfs/inode-map.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/inode-map.h 2016-04-12 12:09:26.000000000 -0400 +@@ -9,5 +9,6 @@ int btrfs_save_ino_cache(struct btrfs_ro + struct btrfs_trans_handle *trans); + + int btrfs_find_free_objectid(struct btrfs_root *root, u64 *objectid); ++int btrfs_find_highest_objectid(struct btrfs_root *root, u64 *objectid); + + #endif +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/ioctl.c linux-libre-4.4.7-gnu/fs/btrfs/ioctl.c +--- linux-libre-4.4-gnu/fs/btrfs/ioctl.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/ioctl.c 2016-04-12 12:09:26.000000000 -0400 +@@ -568,6 +568,10 @@ static noinline int create_subvol(struct + goto fail; + } + ++ mutex_lock(&new_root->objectid_mutex); ++ new_root->highest_objectid = new_dirid; ++ mutex_unlock(&new_root->objectid_mutex); ++ + /* + * insert the directory item + */ +@@ -2782,24 +2786,29 @@ out: + static struct page *extent_same_get_page(struct inode *inode, pgoff_t index) + { + struct page *page; +- struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree; + + page = grab_cache_page(inode->i_mapping, index); + if (!page) +- return NULL; ++ return ERR_PTR(-ENOMEM); + + if (!PageUptodate(page)) { +- if (extent_read_full_page_nolock(tree, page, btrfs_get_extent, +- 0)) +- return NULL; ++ int ret; ++ ++ ret = btrfs_readpage(NULL, page); ++ if (ret) ++ return ERR_PTR(ret); + lock_page(page); + if (!PageUptodate(page)) { + unlock_page(page); + page_cache_release(page); +- return NULL; ++ return ERR_PTR(-EIO); ++ } ++ if (page->mapping != inode->i_mapping) { ++ unlock_page(page); ++ page_cache_release(page); ++ return ERR_PTR(-EAGAIN); + } + } +- unlock_page(page); + + return page; + } +@@ -2811,17 +2820,31 @@ static int gather_extent_pages(struct in + pgoff_t index = off >> PAGE_CACHE_SHIFT; + + for (i = 0; i < num_pages; i++) { ++again: + pages[i] = extent_same_get_page(inode, index + i); +- if (!pages[i]) +- return -ENOMEM; ++ if (IS_ERR(pages[i])) { ++ int err = PTR_ERR(pages[i]); ++ ++ if (err == -EAGAIN) ++ goto again; ++ pages[i] = NULL; ++ return err; ++ } + } + return 0; + } + +-static inline void lock_extent_range(struct inode *inode, u64 off, u64 len) ++static int lock_extent_range(struct inode *inode, u64 off, u64 len, ++ bool retry_range_locking) + { +- /* do any pending delalloc/csum calc on src, one way or +- another, and lock file content */ ++ /* ++ * Do any pending delalloc/csum calculations on inode, one way or ++ * another, and lock file content. ++ * The locking order is: ++ * ++ * 1) pages ++ * 2) range in the inode's io tree ++ */ + while (1) { + struct btrfs_ordered_extent *ordered; + lock_extent(&BTRFS_I(inode)->io_tree, off, off + len - 1); +@@ -2839,8 +2862,11 @@ static inline void lock_extent_range(str + unlock_extent(&BTRFS_I(inode)->io_tree, off, off + len - 1); + if (ordered) + btrfs_put_ordered_extent(ordered); ++ if (!retry_range_locking) ++ return -EAGAIN; + btrfs_wait_ordered_range(inode, off, len); + } ++ return 0; + } + + static void btrfs_double_inode_unlock(struct inode *inode1, struct inode *inode2) +@@ -2865,15 +2891,24 @@ static void btrfs_double_extent_unlock(s + unlock_extent(&BTRFS_I(inode2)->io_tree, loff2, loff2 + len - 1); + } + +-static void btrfs_double_extent_lock(struct inode *inode1, u64 loff1, +- struct inode *inode2, u64 loff2, u64 len) ++static int btrfs_double_extent_lock(struct inode *inode1, u64 loff1, ++ struct inode *inode2, u64 loff2, u64 len, ++ bool retry_range_locking) + { ++ int ret; ++ + if (inode1 < inode2) { + swap(inode1, inode2); + swap(loff1, loff2); + } +- lock_extent_range(inode1, loff1, len); +- lock_extent_range(inode2, loff2, len); ++ ret = lock_extent_range(inode1, loff1, len, retry_range_locking); ++ if (ret) ++ return ret; ++ ret = lock_extent_range(inode2, loff2, len, retry_range_locking); ++ if (ret) ++ unlock_extent(&BTRFS_I(inode1)->io_tree, loff1, ++ loff1 + len - 1); ++ return ret; + } + + struct cmp_pages { +@@ -2889,11 +2924,15 @@ static void btrfs_cmp_data_free(struct c + + for (i = 0; i < cmp->num_pages; i++) { + pg = cmp->src_pages[i]; +- if (pg) ++ if (pg) { ++ unlock_page(pg); + page_cache_release(pg); ++ } + pg = cmp->dst_pages[i]; +- if (pg) ++ if (pg) { ++ unlock_page(pg); + page_cache_release(pg); ++ } + } + kfree(cmp->src_pages); + kfree(cmp->dst_pages); +@@ -2954,6 +2993,8 @@ static int btrfs_cmp_data(struct inode * + + src_page = cmp->src_pages[i]; + dst_page = cmp->dst_pages[i]; ++ ASSERT(PageLocked(src_page)); ++ ASSERT(PageLocked(dst_page)); + + addr = kmap_atomic(src_page); + dst_addr = kmap_atomic(dst_page); +@@ -3066,14 +3107,46 @@ static int btrfs_extent_same(struct inod + goto out_unlock; + } + ++again: + ret = btrfs_cmp_data_prepare(src, loff, dst, dst_loff, olen, &cmp); + if (ret) + goto out_unlock; + + if (same_inode) +- lock_extent_range(src, same_lock_start, same_lock_len); ++ ret = lock_extent_range(src, same_lock_start, same_lock_len, ++ false); + else +- btrfs_double_extent_lock(src, loff, dst, dst_loff, len); ++ ret = btrfs_double_extent_lock(src, loff, dst, dst_loff, len, ++ false); ++ /* ++ * If one of the inodes has dirty pages in the respective range or ++ * ordered extents, we need to flush dellaloc and wait for all ordered ++ * extents in the range. We must unlock the pages and the ranges in the ++ * io trees to avoid deadlocks when flushing delalloc (requires locking ++ * pages) and when waiting for ordered extents to complete (they require ++ * range locking). ++ */ ++ if (ret == -EAGAIN) { ++ /* ++ * Ranges in the io trees already unlocked. Now unlock all ++ * pages before waiting for all IO to complete. ++ */ ++ btrfs_cmp_data_free(&cmp); ++ if (same_inode) { ++ btrfs_wait_ordered_range(src, same_lock_start, ++ same_lock_len); ++ } else { ++ btrfs_wait_ordered_range(src, loff, len); ++ btrfs_wait_ordered_range(dst, dst_loff, len); ++ } ++ goto again; ++ } ++ ASSERT(ret == 0); ++ if (WARN_ON(ret)) { ++ /* ranges in the io trees already unlocked */ ++ btrfs_cmp_data_free(&cmp); ++ return ret; ++ } + + /* pass original length for comparison so we stay within i_size */ + ret = btrfs_cmp_data(src, loff, dst, dst_loff, olen, &cmp); +@@ -3895,9 +3968,15 @@ static noinline long btrfs_ioctl_clone(s + u64 lock_start = min_t(u64, off, destoff); + u64 lock_len = max_t(u64, off, destoff) + len - lock_start; + +- lock_extent_range(src, lock_start, lock_len); ++ ret = lock_extent_range(src, lock_start, lock_len, true); + } else { +- btrfs_double_extent_lock(src, off, inode, destoff, len); ++ ret = btrfs_double_extent_lock(src, off, inode, destoff, len, ++ true); ++ } ++ ASSERT(ret == 0); ++ if (WARN_ON(ret)) { ++ /* ranges in the io trees already unlocked */ ++ goto out_unlock; + } + + ret = btrfs_clone(src, inode, off, olen, len, destoff, 0); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/root-tree.c linux-libre-4.4.7-gnu/fs/btrfs/root-tree.c +--- linux-libre-4.4-gnu/fs/btrfs/root-tree.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/root-tree.c 2016-04-12 12:09:26.000000000 -0400 +@@ -310,8 +310,16 @@ int btrfs_find_orphan_roots(struct btrfs + set_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &root->state); + + err = btrfs_insert_fs_root(root->fs_info, root); ++ /* ++ * The root might have been inserted already, as before we look ++ * for orphan roots, log replay might have happened, which ++ * triggers a transaction commit and qgroup accounting, which ++ * in turn reads and inserts fs roots while doing backref ++ * walking. ++ */ ++ if (err == -EEXIST) ++ err = 0; + if (err) { +- BUG_ON(err == -EEXIST); + btrfs_free_fs_root(root); + break; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/send.c linux-libre-4.4.7-gnu/fs/btrfs/send.c +--- linux-libre-4.4-gnu/fs/btrfs/send.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/send.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1469,7 +1469,21 @@ static int read_symlink(struct btrfs_roo + ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); + if (ret < 0) + goto out; +- BUG_ON(ret); ++ if (ret) { ++ /* ++ * An empty symlink inode. Can happen in rare error paths when ++ * creating a symlink (transaction committed before the inode ++ * eviction handler removed the symlink inode items and a crash ++ * happened in between or the subvol was snapshoted in between). ++ * Print an informative message to dmesg/syslog so that the user ++ * can delete the symlink. ++ */ ++ btrfs_err(root->fs_info, ++ "Found empty symlink inode %llu at root %llu", ++ ino, root->root_key.objectid); ++ ret = -EIO; ++ goto out; ++ } + + ei = btrfs_item_ptr(path->nodes[0], path->slots[0], + struct btrfs_file_extent_item); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/super.c linux-libre-4.4.7-gnu/fs/btrfs/super.c +--- linux-libre-4.4-gnu/fs/btrfs/super.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/super.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1956,6 +1956,8 @@ static int btrfs_calc_avail_data_space(s + * there are other factors that may change the result (like a new metadata + * chunk). + * ++ * If metadata is exhausted, f_bavail will be 0. ++ * + * FIXME: not accurate for mixed block groups, total and free/used are ok, + * available appears slightly larger. + */ +@@ -1967,11 +1969,13 @@ static int btrfs_statfs(struct dentry *d + struct btrfs_space_info *found; + u64 total_used = 0; + u64 total_free_data = 0; ++ u64 total_free_meta = 0; + int bits = dentry->d_sb->s_blocksize_bits; + __be32 *fsid = (__be32 *)fs_info->fsid; + unsigned factor = 1; + struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv; + int ret; ++ u64 thresh = 0; + + /* + * holding chunk_muext to avoid allocating new chunks, holding +@@ -1997,6 +2001,8 @@ static int btrfs_statfs(struct dentry *d + } + } + } ++ if (found->flags & BTRFS_BLOCK_GROUP_METADATA) ++ total_free_meta += found->disk_total - found->disk_used; + + total_used += found->disk_used; + } +@@ -2019,6 +2025,24 @@ static int btrfs_statfs(struct dentry *d + buf->f_bavail += div_u64(total_free_data, factor); + buf->f_bavail = buf->f_bavail >> bits; + ++ /* ++ * We calculate the remaining metadata space minus global reserve. If ++ * this is (supposedly) smaller than zero, there's no space. But this ++ * does not hold in practice, the exhausted state happens where's still ++ * some positive delta. So we apply some guesswork and compare the ++ * delta to a 4M threshold. (Practically observed delta was ~2M.) ++ * ++ * We probably cannot calculate the exact threshold value because this ++ * depends on the internal reservations requested by various ++ * operations, so some operations that consume a few metadata will ++ * succeed even if the Avail is zero. But this is better than the other ++ * way around. ++ */ ++ thresh = 4 * 1024 * 1024; ++ ++ if (total_free_meta - thresh < block_rsv->size) ++ buf->f_bavail = 0; ++ + buf->f_type = BTRFS_SUPER_MAGIC; + buf->f_bsize = dentry->d_sb->s_blocksize; + buf->f_namelen = BTRFS_NAME_LEN; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/volumes.c linux-libre-4.4.7-gnu/fs/btrfs/volumes.c +--- linux-libre-4.4-gnu/fs/btrfs/volumes.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/btrfs/volumes.c 2016-04-12 12:09:26.000000000 -0400 +@@ -232,6 +232,7 @@ static struct btrfs_device *__alloc_devi + spin_lock_init(&dev->reada_lock); + atomic_set(&dev->reada_in_flight, 0); + atomic_set(&dev->dev_stats_ccnt, 0); ++ btrfs_device_data_ordered_init(dev); + INIT_RADIX_TREE(&dev->reada_zones, GFP_NOFS & ~__GFP_DIRECT_RECLAIM); + INIT_RADIX_TREE(&dev->reada_extents, GFP_NOFS & ~__GFP_DIRECT_RECLAIM); + +@@ -1257,6 +1258,15 @@ int find_free_dev_extent_start(struct bt + int ret; + int slot; + struct extent_buffer *l; ++ u64 min_search_start; ++ ++ /* ++ * We don't want to overwrite the superblock on the drive nor any area ++ * used by the boot loader (grub for example), so we make sure to start ++ * at an offset of at least 1MB. ++ */ ++ min_search_start = max(root->fs_info->alloc_start, 1024ull * 1024); ++ search_start = max(search_start, min_search_start); + + path = btrfs_alloc_path(); + if (!path) +@@ -1397,18 +1407,9 @@ int find_free_dev_extent(struct btrfs_tr + struct btrfs_device *device, u64 num_bytes, + u64 *start, u64 *len) + { +- struct btrfs_root *root = device->dev_root; +- u64 search_start; +- + /* FIXME use last free of some kind */ +- +- /* +- * we don't want to overwrite the superblock on the drive, +- * so we make sure to start at an offset of at least 1MB +- */ +- search_start = max(root->fs_info->alloc_start, 1024ull * 1024); + return find_free_dev_extent_start(trans->transaction, device, +- num_bytes, search_start, start, len); ++ num_bytes, 0, start, len); + } + + static int btrfs_free_dev_extent(struct btrfs_trans_handle *trans, +@@ -6512,6 +6513,14 @@ int btrfs_read_sys_array(struct btrfs_ro + goto out_short_read; + + num_stripes = btrfs_chunk_num_stripes(sb, chunk); ++ if (!num_stripes) { ++ printk(KERN_ERR ++ "BTRFS: invalid number of stripes %u in sys_array at offset %u\n", ++ num_stripes, cur_offset); ++ ret = -EIO; ++ break; ++ } ++ + len = btrfs_chunk_item_size(num_stripes); + if (cur_offset + len > array_size) + goto out_short_read; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifs_debug.c linux-libre-4.4.7-gnu/fs/cifs/cifs_debug.c +--- linux-libre-4.4-gnu/fs/cifs/cifs_debug.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/cifs/cifs_debug.c 2016-04-12 12:09:26.000000000 -0400 +@@ -50,7 +50,7 @@ void cifs_vfs_err(const char *fmt, ...) + vaf.fmt = fmt; + vaf.va = &args; + +- pr_err("CIFS VFS: %pV", &vaf); ++ pr_err_ratelimited("CIFS VFS: %pV", &vaf); + + va_end(args); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifs_debug.h linux-libre-4.4.7-gnu/fs/cifs/cifs_debug.h +--- linux-libre-4.4-gnu/fs/cifs/cifs_debug.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/cifs/cifs_debug.h 2016-04-12 12:09:26.000000000 -0400 +@@ -51,14 +51,13 @@ __printf(1, 2) void cifs_vfs_err(const c + /* information message: e.g., configuration, major event */ + #define cifs_dbg(type, fmt, ...) \ + do { \ +- if (type == FYI) { \ +- if (cifsFYI & CIFS_INFO) { \ +- pr_debug("%s: " fmt, __FILE__, ##__VA_ARGS__); \ +- } \ ++ if (type == FYI && cifsFYI & CIFS_INFO) { \ ++ pr_debug_ratelimited("%s: " \ ++ fmt, __FILE__, ##__VA_ARGS__); \ + } else if (type == VFS) { \ + cifs_vfs_err(fmt, ##__VA_ARGS__); \ + } else if (type == NOISY && type != 0) { \ +- pr_debug(fmt, ##__VA_ARGS__); \ ++ pr_debug_ratelimited(fmt, ##__VA_ARGS__); \ + } \ + } while (0) + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifsencrypt.c linux-libre-4.4.7-gnu/fs/cifs/cifsencrypt.c +--- linux-libre-4.4-gnu/fs/cifs/cifsencrypt.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/cifs/cifsencrypt.c 2016-04-12 12:09:26.000000000 -0400 +@@ -714,7 +714,7 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, c + + ses->auth_key.response = kmalloc(baselen + tilen, GFP_KERNEL); + if (!ses->auth_key.response) { +- rc = ENOMEM; ++ rc = -ENOMEM; + ses->auth_key.len = 0; + goto setup_ntlmv2_rsp_ret; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifsfs.h linux-libre-4.4.7-gnu/fs/cifs/cifsfs.h +--- linux-libre-4.4-gnu/fs/cifs/cifsfs.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/cifs/cifsfs.h 2016-04-12 12:09:26.000000000 -0400 +@@ -31,19 +31,15 @@ + * so that it will fit. We use hash_64 to convert the value to 31 bits, and + * then add 1, to ensure that we don't end up with a 0 as the value. + */ +-#if BITS_PER_LONG == 64 + static inline ino_t + cifs_uniqueid_to_ino_t(u64 fileid) + { ++ if ((sizeof(ino_t)) < (sizeof(u64))) ++ return (ino_t)hash_64(fileid, (sizeof(ino_t) * 8) - 1) + 1; ++ + return (ino_t)fileid; ++ + } +-#else +-static inline ino_t +-cifs_uniqueid_to_ino_t(u64 fileid) +-{ +- return (ino_t)hash_64(fileid, (sizeof(ino_t) * 8) - 1) + 1; +-} +-#endif + + extern struct file_system_type cifs_fs_type; + extern const struct address_space_operations cifs_addr_ops; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifssmb.c linux-libre-4.4.7-gnu/fs/cifs/cifssmb.c +--- linux-libre-4.4-gnu/fs/cifs/cifssmb.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/cifs/cifssmb.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1396,11 +1396,10 @@ openRetry: + * current bigbuf. + */ + static int +-cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid) ++discard_remaining_data(struct TCP_Server_Info *server) + { + unsigned int rfclen = get_rfc1002_length(server->smallbuf); + int remaining = rfclen + 4 - server->total_read; +- struct cifs_readdata *rdata = mid->callback_data; + + while (remaining > 0) { + int length; +@@ -1414,10 +1413,20 @@ cifs_readv_discard(struct TCP_Server_Inf + remaining -= length; + } + +- dequeue_mid(mid, rdata->result); + return 0; + } + ++static int ++cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid) ++{ ++ int length; ++ struct cifs_readdata *rdata = mid->callback_data; ++ ++ length = discard_remaining_data(server); ++ dequeue_mid(mid, rdata->result); ++ return length; ++} ++ + int + cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid) + { +@@ -1446,6 +1455,12 @@ cifs_readv_receive(struct TCP_Server_Inf + return length; + server->total_read += length; + ++ if (server->ops->is_status_pending && ++ server->ops->is_status_pending(buf, server, 0)) { ++ discard_remaining_data(server); ++ return -1; ++ } ++ + /* Was the SMB read successful? */ + rdata->result = server->ops->map_error(buf, false); + if (rdata->result != 0) { +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/connect.c linux-libre-4.4.7-gnu/fs/cifs/connect.c +--- linux-libre-4.4-gnu/fs/cifs/connect.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/cifs/connect.c 2016-04-12 12:09:26.000000000 -0400 +@@ -368,7 +368,6 @@ cifs_reconnect(struct TCP_Server_Info *s + server->session_key.response = NULL; + server->session_key.len = 0; + server->lstrp = jiffies; +- mutex_unlock(&server->srv_mutex); + + /* mark submitted MIDs for retry and issue callback */ + INIT_LIST_HEAD(&retry_list); +@@ -381,6 +380,7 @@ cifs_reconnect(struct TCP_Server_Info *s + list_move(&mid_entry->qhead, &retry_list); + } + spin_unlock(&GlobalMid_Lock); ++ mutex_unlock(&server->srv_mutex); + + cifs_dbg(FYI, "%s: issuing mid callbacks\n", __func__); + list_for_each_safe(tmp, tmp2, &retry_list) { +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/readdir.c linux-libre-4.4.7-gnu/fs/cifs/readdir.c +--- linux-libre-4.4-gnu/fs/cifs/readdir.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/cifs/readdir.c 2016-04-12 12:09:26.000000000 -0400 +@@ -847,6 +847,7 @@ int cifs_readdir(struct file *file, stru + * if buggy server returns . and .. late do we want to + * check for that here? + */ ++ *tmp_buf = 0; + rc = cifs_filldir(current_entry, file, ctx, + tmp_buf, max_len); + if (rc) { +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/smb2pdu.c linux-libre-4.4.7-gnu/fs/cifs/smb2pdu.c +--- linux-libre-4.4-gnu/fs/cifs/smb2pdu.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/cifs/smb2pdu.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1109,21 +1109,25 @@ parse_lease_state(struct TCP_Server_Info + { + char *data_offset; + struct create_context *cc; +- unsigned int next = 0; ++ unsigned int next; ++ unsigned int remaining; + char *name; + + data_offset = (char *)rsp + 4 + le32_to_cpu(rsp->CreateContextsOffset); ++ remaining = le32_to_cpu(rsp->CreateContextsLength); + cc = (struct create_context *)data_offset; +- do { +- cc = (struct create_context *)((char *)cc + next); ++ while (remaining >= sizeof(struct create_context)) { + name = le16_to_cpu(cc->NameOffset) + (char *)cc; +- if (le16_to_cpu(cc->NameLength) != 4 || +- strncmp(name, "RqLs", 4)) { +- next = le32_to_cpu(cc->Next); +- continue; +- } +- return server->ops->parse_lease_buf(cc, epoch); +- } while (next != 0); ++ if (le16_to_cpu(cc->NameLength) == 4 && ++ strncmp(name, "RqLs", 4) == 0) ++ return server->ops->parse_lease_buf(cc, epoch); ++ ++ next = le32_to_cpu(cc->Next); ++ if (!next) ++ break; ++ remaining -= next; ++ cc = (struct create_context *)((char *)cc + next); ++ } + + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/transport.c linux-libre-4.4.7-gnu/fs/cifs/transport.c +--- linux-libre-4.4-gnu/fs/cifs/transport.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/cifs/transport.c 2016-04-12 12:09:26.000000000 -0400 +@@ -576,14 +576,16 @@ cifs_call_async(struct TCP_Server_Info * + cifs_in_send_dec(server); + cifs_save_when_sent(mid); + +- if (rc < 0) ++ if (rc < 0) { + server->sequence_number -= 2; ++ cifs_delete_mid(mid); ++ } ++ + mutex_unlock(&server->srv_mutex); + + if (rc == 0) + return 0; + +- cifs_delete_mid(mid); + add_credits_and_wake_if(server, credits, optype); + return rc; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/coredump.c linux-libre-4.4.7-gnu/fs/coredump.c +--- linux-libre-4.4-gnu/fs/coredump.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/coredump.c 2016-04-12 12:09:26.000000000 -0400 +@@ -32,6 +32,9 @@ + #include <linux/pipe_fs_i.h> + #include <linux/oom.h> + #include <linux/compat.h> ++#include <linux/sched.h> ++#include <linux/fs.h> ++#include <linux/path.h> + + #include <asm/uaccess.h> + #include <asm/mmu_context.h> +@@ -627,6 +630,8 @@ void do_coredump(const siginfo_t *siginf + } + } else { + struct inode *inode; ++ int open_flags = O_CREAT | O_RDWR | O_NOFOLLOW | ++ O_LARGEFILE | O_EXCL; + + if (cprm.limit < binfmt->min_coredump) + goto fail_unlock; +@@ -665,10 +670,27 @@ void do_coredump(const siginfo_t *siginf + * what matters is that at least one of the two processes + * writes its coredump successfully, not which one. + */ +- cprm.file = filp_open(cn.corename, +- O_CREAT | 2 | O_NOFOLLOW | +- O_LARGEFILE | O_EXCL, +- 0600); ++ if (need_suid_safe) { ++ /* ++ * Using user namespaces, normal user tasks can change ++ * their current->fs->root to point to arbitrary ++ * directories. Since the intention of the "only dump ++ * with a fully qualified path" rule is to control where ++ * coredumps may be placed using root privileges, ++ * current->fs->root must not be used. Instead, use the ++ * root directory of init_task. ++ */ ++ struct path root; ++ ++ task_lock(&init_task); ++ get_fs_root(init_task.fs, &root); ++ task_unlock(&init_task); ++ cprm.file = file_open_root(root.dentry, root.mnt, ++ cn.corename, open_flags, 0600); ++ path_put(&root); ++ } else { ++ cprm.file = filp_open(cn.corename, open_flags, 0600); ++ } + if (IS_ERR(cprm.file)) + goto fail_unlock; + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/dcache.c linux-libre-4.4.7-gnu/fs/dcache.c +--- linux-libre-4.4-gnu/fs/dcache.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/dcache.c 2016-04-12 12:09:26.000000000 -0400 +@@ -269,9 +269,6 @@ static inline int dname_external(const s + return dentry->d_name.name != dentry->d_iname; + } + +-/* +- * Make sure other CPUs see the inode attached before the type is set. +- */ + static inline void __d_set_inode_and_type(struct dentry *dentry, + struct inode *inode, + unsigned type_flags) +@@ -279,28 +276,18 @@ static inline void __d_set_inode_and_typ + unsigned flags; + + dentry->d_inode = inode; +- smp_wmb(); + flags = READ_ONCE(dentry->d_flags); + flags &= ~(DCACHE_ENTRY_TYPE | DCACHE_FALLTHRU); + flags |= type_flags; + WRITE_ONCE(dentry->d_flags, flags); + } + +-/* +- * Ideally, we want to make sure that other CPUs see the flags cleared before +- * the inode is detached, but this is really a violation of RCU principles +- * since the ordering suggests we should always set inode before flags. +- * +- * We should instead replace or discard the entire dentry - but that sucks +- * performancewise on mass deletion/rename. +- */ + static inline void __d_clear_type_and_inode(struct dentry *dentry) + { + unsigned flags = READ_ONCE(dentry->d_flags); + + flags &= ~(DCACHE_ENTRY_TYPE | DCACHE_FALLTHRU); + WRITE_ONCE(dentry->d_flags, flags); +- smp_wmb(); + dentry->d_inode = NULL; + } + +@@ -370,9 +357,11 @@ static void dentry_unlink_inode(struct d + __releases(dentry->d_inode->i_lock) + { + struct inode *inode = dentry->d_inode; ++ ++ raw_write_seqcount_begin(&dentry->d_seq); + __d_clear_type_and_inode(dentry); + hlist_del_init(&dentry->d_u.d_alias); +- dentry_rcuwalk_invalidate(dentry); ++ raw_write_seqcount_end(&dentry->d_seq); + spin_unlock(&dentry->d_lock); + spin_unlock(&inode->i_lock); + if (!inode->i_nlink) +@@ -1757,8 +1746,9 @@ static void __d_instantiate(struct dentr + spin_lock(&dentry->d_lock); + if (inode) + hlist_add_head(&dentry->d_u.d_alias, &inode->i_dentry); ++ raw_write_seqcount_begin(&dentry->d_seq); + __d_set_inode_and_type(dentry, inode, add_flags); +- dentry_rcuwalk_invalidate(dentry); ++ raw_write_seqcount_end(&dentry->d_seq); + spin_unlock(&dentry->d_lock); + fsnotify_d_instantiate(dentry, inode); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/devpts/inode.c linux-libre-4.4.7-gnu/fs/devpts/inode.c +--- linux-libre-4.4-gnu/fs/devpts/inode.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/devpts/inode.c 2016-04-12 12:09:26.000000000 -0400 +@@ -575,6 +575,26 @@ void devpts_kill_index(struct inode *ptm + mutex_unlock(&allocated_ptys_lock); + } + ++/* ++ * pty code needs to hold extra references in case of last /dev/tty close ++ */ ++ ++void devpts_add_ref(struct inode *ptmx_inode) ++{ ++ struct super_block *sb = pts_sb_from_inode(ptmx_inode); ++ ++ atomic_inc(&sb->s_active); ++ ihold(ptmx_inode); ++} ++ ++void devpts_del_ref(struct inode *ptmx_inode) ++{ ++ struct super_block *sb = pts_sb_from_inode(ptmx_inode); ++ ++ iput(ptmx_inode); ++ deactivate_super(sb); ++} ++ + /** + * devpts_pty_new -- create a new inode in /dev/pts/ + * @ptmx_inode: inode of the master +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/direct-io.c linux-libre-4.4.7-gnu/fs/direct-io.c +--- linux-libre-4.4-gnu/fs/direct-io.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/direct-io.c 2016-04-12 12:09:26.000000000 -0400 +@@ -472,8 +472,8 @@ static int dio_bio_complete(struct dio * + dio->io_error = -EIO; + + if (dio->is_async && dio->rw == READ && dio->should_dirty) { +- bio_check_pages_dirty(bio); /* transfers ownership */ + err = bio->bi_error; ++ bio_check_pages_dirty(bio); /* transfers ownership */ + } else { + bio_for_each_segment_all(bvec, bio, i) { + struct page *page = bvec->bv_page; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/efivarfs/file.c linux-libre-4.4.7-gnu/fs/efivarfs/file.c +--- linux-libre-4.4-gnu/fs/efivarfs/file.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/efivarfs/file.c 2016-04-12 12:09:26.000000000 -0400 +@@ -10,6 +10,7 @@ + #include <linux/efi.h> + #include <linux/fs.h> + #include <linux/slab.h> ++#include <linux/mount.h> + + #include "internal.h" + +@@ -103,9 +104,78 @@ out_free: + return size; + } + ++static int ++efivarfs_ioc_getxflags(struct file *file, void __user *arg) ++{ ++ struct inode *inode = file->f_mapping->host; ++ unsigned int i_flags; ++ unsigned int flags = 0; ++ ++ i_flags = inode->i_flags; ++ if (i_flags & S_IMMUTABLE) ++ flags |= FS_IMMUTABLE_FL; ++ ++ if (copy_to_user(arg, &flags, sizeof(flags))) ++ return -EFAULT; ++ return 0; ++} ++ ++static int ++efivarfs_ioc_setxflags(struct file *file, void __user *arg) ++{ ++ struct inode *inode = file->f_mapping->host; ++ unsigned int flags; ++ unsigned int i_flags = 0; ++ int error; ++ ++ if (!inode_owner_or_capable(inode)) ++ return -EACCES; ++ ++ if (copy_from_user(&flags, arg, sizeof(flags))) ++ return -EFAULT; ++ ++ if (flags & ~FS_IMMUTABLE_FL) ++ return -EOPNOTSUPP; ++ ++ if (!capable(CAP_LINUX_IMMUTABLE)) ++ return -EPERM; ++ ++ if (flags & FS_IMMUTABLE_FL) ++ i_flags |= S_IMMUTABLE; ++ ++ ++ error = mnt_want_write_file(file); ++ if (error) ++ return error; ++ ++ mutex_lock(&inode->i_mutex); ++ inode_set_flags(inode, i_flags, S_IMMUTABLE); ++ mutex_unlock(&inode->i_mutex); ++ ++ mnt_drop_write_file(file); ++ ++ return 0; ++} ++ ++long ++efivarfs_file_ioctl(struct file *file, unsigned int cmd, unsigned long p) ++{ ++ void __user *arg = (void __user *)p; ++ ++ switch (cmd) { ++ case FS_IOC_GETFLAGS: ++ return efivarfs_ioc_getxflags(file, arg); ++ case FS_IOC_SETFLAGS: ++ return efivarfs_ioc_setxflags(file, arg); ++ } ++ ++ return -ENOTTY; ++} ++ + const struct file_operations efivarfs_file_operations = { + .open = simple_open, + .read = efivarfs_file_read, + .write = efivarfs_file_write, + .llseek = no_llseek, ++ .unlocked_ioctl = efivarfs_file_ioctl, + }; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/efivarfs/inode.c linux-libre-4.4.7-gnu/fs/efivarfs/inode.c +--- linux-libre-4.4-gnu/fs/efivarfs/inode.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/efivarfs/inode.c 2016-04-12 12:09:26.000000000 -0400 +@@ -15,7 +15,8 @@ + #include "internal.h" + + struct inode *efivarfs_get_inode(struct super_block *sb, +- const struct inode *dir, int mode, dev_t dev) ++ const struct inode *dir, int mode, ++ dev_t dev, bool is_removable) + { + struct inode *inode = new_inode(sb); + +@@ -23,6 +24,7 @@ struct inode *efivarfs_get_inode(struct + inode->i_ino = get_next_ino(); + inode->i_mode = mode; + inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; ++ inode->i_flags = is_removable ? 0 : S_IMMUTABLE; + switch (mode & S_IFMT) { + case S_IFREG: + inode->i_fop = &efivarfs_file_operations; +@@ -102,22 +104,17 @@ static void efivarfs_hex_to_guid(const c + static int efivarfs_create(struct inode *dir, struct dentry *dentry, + umode_t mode, bool excl) + { +- struct inode *inode; ++ struct inode *inode = NULL; + struct efivar_entry *var; + int namelen, i = 0, err = 0; ++ bool is_removable = false; + + if (!efivarfs_valid_name(dentry->d_name.name, dentry->d_name.len)) + return -EINVAL; + +- inode = efivarfs_get_inode(dir->i_sb, dir, mode, 0); +- if (!inode) +- return -ENOMEM; +- + var = kzalloc(sizeof(struct efivar_entry), GFP_KERNEL); +- if (!var) { +- err = -ENOMEM; +- goto out; +- } ++ if (!var) ++ return -ENOMEM; + + /* length of the variable name itself: remove GUID and separator */ + namelen = dentry->d_name.len - EFI_VARIABLE_GUID_LEN - 1; +@@ -125,6 +122,16 @@ static int efivarfs_create(struct inode + efivarfs_hex_to_guid(dentry->d_name.name + namelen + 1, + &var->var.VendorGuid); + ++ if (efivar_variable_is_removable(var->var.VendorGuid, ++ dentry->d_name.name, namelen)) ++ is_removable = true; ++ ++ inode = efivarfs_get_inode(dir->i_sb, dir, mode, 0, is_removable); ++ if (!inode) { ++ err = -ENOMEM; ++ goto out; ++ } ++ + for (i = 0; i < namelen; i++) + var->var.VariableName[i] = dentry->d_name.name[i]; + +@@ -138,7 +145,8 @@ static int efivarfs_create(struct inode + out: + if (err) { + kfree(var); +- iput(inode); ++ if (inode) ++ iput(inode); + } + return err; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/efivarfs/internal.h linux-libre-4.4.7-gnu/fs/efivarfs/internal.h +--- linux-libre-4.4-gnu/fs/efivarfs/internal.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/efivarfs/internal.h 2016-04-12 12:09:26.000000000 -0400 +@@ -15,7 +15,8 @@ extern const struct file_operations efiv + extern const struct inode_operations efivarfs_dir_inode_operations; + extern bool efivarfs_valid_name(const char *str, int len); + extern struct inode *efivarfs_get_inode(struct super_block *sb, +- const struct inode *dir, int mode, dev_t dev); ++ const struct inode *dir, int mode, dev_t dev, ++ bool is_removable); + + extern struct list_head efivarfs_list; + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/efivarfs/super.c linux-libre-4.4.7-gnu/fs/efivarfs/super.c +--- linux-libre-4.4-gnu/fs/efivarfs/super.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/efivarfs/super.c 2016-04-12 12:09:26.000000000 -0400 +@@ -118,8 +118,9 @@ static int efivarfs_callback(efi_char16_ + struct dentry *dentry, *root = sb->s_root; + unsigned long size = 0; + char *name; +- int len, i; ++ int len; + int err = -ENOMEM; ++ bool is_removable = false; + + entry = kzalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) +@@ -128,15 +129,17 @@ static int efivarfs_callback(efi_char16_ + memcpy(entry->var.VariableName, name16, name_size); + memcpy(&(entry->var.VendorGuid), &vendor, sizeof(efi_guid_t)); + +- len = ucs2_strlen(entry->var.VariableName); ++ len = ucs2_utf8size(entry->var.VariableName); + + /* name, plus '-', plus GUID, plus NUL*/ + name = kmalloc(len + 1 + EFI_VARIABLE_GUID_LEN + 1, GFP_KERNEL); + if (!name) + goto fail; + +- for (i = 0; i < len; i++) +- name[i] = entry->var.VariableName[i] & 0xFF; ++ ucs2_as_utf8(name, entry->var.VariableName, len); ++ ++ if (efivar_variable_is_removable(entry->var.VendorGuid, name, len)) ++ is_removable = true; + + name[len] = '-'; + +@@ -144,7 +147,8 @@ static int efivarfs_callback(efi_char16_ + + name[len + EFI_VARIABLE_GUID_LEN+1] = '\0'; + +- inode = efivarfs_get_inode(sb, d_inode(root), S_IFREG | 0644, 0); ++ inode = efivarfs_get_inode(sb, d_inode(root), S_IFREG | 0644, 0, ++ is_removable); + if (!inode) + goto fail_name; + +@@ -200,7 +204,7 @@ static int efivarfs_fill_super(struct su + sb->s_d_op = &efivarfs_d_ops; + sb->s_time_gran = 1; + +- inode = efivarfs_get_inode(sb, NULL, S_IFDIR | 0755, 0); ++ inode = efivarfs_get_inode(sb, NULL, S_IFDIR | 0755, 0, true); + if (!inode) + return -ENOMEM; + inode->i_op = &efivarfs_dir_inode_operations; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/balloc.c linux-libre-4.4.7-gnu/fs/ext4/balloc.c +--- linux-libre-4.4-gnu/fs/ext4/balloc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/ext4/balloc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -191,7 +191,6 @@ static int ext4_init_block_bitmap(struct + /* If checksum is bad mark all blocks used to prevent allocation + * essentially implementing a per-group read-only flag. */ + if (!ext4_group_desc_csum_verify(sb, block_group, gdp)) { +- ext4_error(sb, "Checksum bad for group %u", block_group); + grp = ext4_get_group_info(sb, block_group); + if (!EXT4_MB_GRP_BBITMAP_CORRUPT(grp)) + percpu_counter_sub(&sbi->s_freeclusters_counter, +@@ -442,14 +441,16 @@ ext4_read_block_bitmap_nowait(struct sup + } + ext4_lock_group(sb, block_group); + if (desc->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) { +- + err = ext4_init_block_bitmap(sb, bh, block_group, desc); + set_bitmap_uptodate(bh); + set_buffer_uptodate(bh); + ext4_unlock_group(sb, block_group); + unlock_buffer(bh); +- if (err) ++ if (err) { ++ ext4_error(sb, "Failed to init block bitmap for group " ++ "%u: %d", block_group, err); + goto out; ++ } + goto verify; + } + ext4_unlock_group(sb, block_group); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/crypto_key.c linux-libre-4.4.7-gnu/fs/ext4/crypto_key.c +--- linux-libre-4.4-gnu/fs/ext4/crypto_key.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/ext4/crypto_key.c 2016-04-12 12:09:26.000000000 -0400 +@@ -213,9 +213,11 @@ retry: + res = -ENOKEY; + goto out; + } ++ down_read(&keyring_key->sem); + ukp = user_key_payload(keyring_key); + if (ukp->datalen != sizeof(struct ext4_encryption_key)) { + res = -EINVAL; ++ up_read(&keyring_key->sem); + goto out; + } + master_key = (struct ext4_encryption_key *)ukp->data; +@@ -226,10 +228,12 @@ retry: + "ext4: key size incorrect: %d\n", + master_key->size); + res = -ENOKEY; ++ up_read(&keyring_key->sem); + goto out; + } + res = ext4_derive_key_aes(ctx.nonce, master_key->raw, + raw_key); ++ up_read(&keyring_key->sem); + if (res) + goto out; + got_key: +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/ialloc.c linux-libre-4.4.7-gnu/fs/ext4/ialloc.c +--- linux-libre-4.4-gnu/fs/ext4/ialloc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/ext4/ialloc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -76,7 +76,6 @@ static int ext4_init_inode_bitmap(struct + /* If checksum is bad mark all blocks and inodes use to prevent + * allocation, essentially implementing a per-group read-only flag. */ + if (!ext4_group_desc_csum_verify(sb, block_group, gdp)) { +- ext4_error(sb, "Checksum bad for group %u", block_group); + grp = ext4_get_group_info(sb, block_group); + if (!EXT4_MB_GRP_BBITMAP_CORRUPT(grp)) + percpu_counter_sub(&sbi->s_freeclusters_counter, +@@ -191,8 +190,11 @@ ext4_read_inode_bitmap(struct super_bloc + set_buffer_verified(bh); + ext4_unlock_group(sb, block_group); + unlock_buffer(bh); +- if (err) ++ if (err) { ++ ext4_error(sb, "Failed to init inode bitmap for group " ++ "%u: %d", block_group, err); + goto out; ++ } + return bh; + } + ext4_unlock_group(sb, block_group); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/inode.c linux-libre-4.4.7-gnu/fs/ext4/inode.c +--- linux-libre-4.4-gnu/fs/ext4/inode.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/ext4/inode.c 2016-04-12 12:09:26.000000000 -0400 +@@ -657,6 +657,34 @@ has_zeroout: + return retval; + } + ++/* ++ * Update EXT4_MAP_FLAGS in bh->b_state. For buffer heads attached to pages ++ * we have to be careful as someone else may be manipulating b_state as well. ++ */ ++static void ext4_update_bh_state(struct buffer_head *bh, unsigned long flags) ++{ ++ unsigned long old_state; ++ unsigned long new_state; ++ ++ flags &= EXT4_MAP_FLAGS; ++ ++ /* Dummy buffer_head? Set non-atomically. */ ++ if (!bh->b_page) { ++ bh->b_state = (bh->b_state & ~EXT4_MAP_FLAGS) | flags; ++ return; ++ } ++ /* ++ * Someone else may be modifying b_state. Be careful! This is ugly but ++ * once we get rid of using bh as a container for mapping information ++ * to pass to / from get_block functions, this can go away. ++ */ ++ do { ++ old_state = READ_ONCE(bh->b_state); ++ new_state = (old_state & ~EXT4_MAP_FLAGS) | flags; ++ } while (unlikely( ++ cmpxchg(&bh->b_state, old_state, new_state) != old_state)); ++} ++ + /* Maximum number of blocks we map for direct IO at once. */ + #define DIO_MAX_BLOCKS 4096 + +@@ -693,7 +721,7 @@ static int _ext4_get_block(struct inode + ext4_io_end_t *io_end = ext4_inode_aio(inode); + + map_bh(bh, inode->i_sb, map.m_pblk); +- bh->b_state = (bh->b_state & ~EXT4_MAP_FLAGS) | map.m_flags; ++ ext4_update_bh_state(bh, map.m_flags); + if (IS_DAX(inode) && buffer_unwritten(bh)) { + /* + * dgc: I suspect unwritten conversion on ext4+DAX is +@@ -1669,7 +1697,7 @@ int ext4_da_get_block_prep(struct inode + return ret; + + map_bh(bh, inode->i_sb, map.m_pblk); +- bh->b_state = (bh->b_state & ~EXT4_MAP_FLAGS) | map.m_flags; ++ ext4_update_bh_state(bh, map.m_flags); + + if (buffer_unwritten(bh)) { + /* A delayed write to unwritten bh should be marked +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/move_extent.c linux-libre-4.4.7-gnu/fs/ext4/move_extent.c +--- linux-libre-4.4-gnu/fs/ext4/move_extent.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/ext4/move_extent.c 2016-04-12 12:09:26.000000000 -0400 +@@ -265,11 +265,12 @@ move_extent_per_page(struct file *o_filp + ext4_lblk_t orig_blk_offset, donor_blk_offset; + unsigned long blocksize = orig_inode->i_sb->s_blocksize; + unsigned int tmp_data_size, data_size, replaced_size; +- int err2, jblocks, retries = 0; ++ int i, err2, jblocks, retries = 0; + int replaced_count = 0; + int from = data_offset_in_page << orig_inode->i_blkbits; + int blocks_per_page = PAGE_CACHE_SIZE >> orig_inode->i_blkbits; + struct super_block *sb = orig_inode->i_sb; ++ struct buffer_head *bh = NULL; + + /* + * It needs twice the amount of ordinary journal buffers because +@@ -380,8 +381,16 @@ data_copy: + } + /* Perform all necessary steps similar write_begin()/write_end() + * but keeping in mind that i_size will not change */ +- *err = __block_write_begin(pagep[0], from, replaced_size, +- ext4_get_block); ++ if (!page_has_buffers(pagep[0])) ++ create_empty_buffers(pagep[0], 1 << orig_inode->i_blkbits, 0); ++ bh = page_buffers(pagep[0]); ++ for (i = 0; i < data_offset_in_page; i++) ++ bh = bh->b_this_page; ++ for (i = 0; i < block_len_in_page; i++) { ++ *err = ext4_get_block(orig_inode, orig_blk_offset + i, bh, 0); ++ if (*err < 0) ++ break; ++ } + if (!*err) + *err = block_commit_write(pagep[0], from, from + replaced_size); + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/resize.c linux-libre-4.4.7-gnu/fs/ext4/resize.c +--- linux-libre-4.4-gnu/fs/ext4/resize.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/ext4/resize.c 2016-04-12 12:09:26.000000000 -0400 +@@ -198,7 +198,7 @@ static struct ext4_new_flex_group_data * + if (flex_gd == NULL) + goto out3; + +- if (flexbg_size >= UINT_MAX / sizeof(struct ext4_new_flex_group_data)) ++ if (flexbg_size >= UINT_MAX / sizeof(struct ext4_new_group_data)) + goto out2; + flex_gd->count = flexbg_size; + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fhandle.c linux-libre-4.4.7-gnu/fs/fhandle.c +--- linux-libre-4.4-gnu/fs/fhandle.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/fhandle.c 2016-04-12 12:09:26.000000000 -0400 +@@ -228,7 +228,7 @@ long do_handle_open(int mountdirfd, + path_put(&path); + return fd; + } +- file = file_open_root(path.dentry, path.mnt, "", open_flag); ++ file = file_open_root(path.dentry, path.mnt, "", open_flag, 0); + if (IS_ERR(file)) { + put_unused_fd(fd); + retval = PTR_ERR(file); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fs-writeback.c linux-libre-4.4.7-gnu/fs/fs-writeback.c +--- linux-libre-4.4-gnu/fs/fs-writeback.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/fs-writeback.c 2016-04-12 12:09:26.000000000 -0400 +@@ -223,6 +223,9 @@ static void wb_wait_for_completion(struc + #define WB_FRN_HIST_MAX_SLOTS (WB_FRN_HIST_THR_SLOTS / 2 + 1) + /* one round can affect upto 5 slots */ + ++static atomic_t isw_nr_in_flight = ATOMIC_INIT(0); ++static struct workqueue_struct *isw_wq; ++ + void __inode_attach_wb(struct inode *inode, struct page *page) + { + struct backing_dev_info *bdi = inode_to_bdi(inode); +@@ -278,13 +281,15 @@ locked_inode_to_wb_and_lock_list(struct + wb_get(wb); + spin_unlock(&inode->i_lock); + spin_lock(&wb->list_lock); +- wb_put(wb); /* not gonna deref it anymore */ + + /* i_wb may have changed inbetween, can't use inode_to_wb() */ +- if (likely(wb == inode->i_wb)) +- return wb; /* @inode already has ref */ ++ if (likely(wb == inode->i_wb)) { ++ wb_put(wb); /* @inode already has ref */ ++ return wb; ++ } + + spin_unlock(&wb->list_lock); ++ wb_put(wb); + cpu_relax(); + spin_lock(&inode->i_lock); + } +@@ -424,6 +429,8 @@ skip_switch: + + iput(inode); + kfree(isw); ++ ++ atomic_dec(&isw_nr_in_flight); + } + + static void inode_switch_wbs_rcu_fn(struct rcu_head *rcu_head) +@@ -433,7 +440,7 @@ static void inode_switch_wbs_rcu_fn(stru + + /* needs to grab bh-unsafe locks, bounce to work item */ + INIT_WORK(&isw->work, inode_switch_wbs_work_fn); +- schedule_work(&isw->work); ++ queue_work(isw_wq, &isw->work); + } + + /** +@@ -469,7 +476,8 @@ static void inode_switch_wbs(struct inod + + /* while holding I_WB_SWITCH, no one else can update the association */ + spin_lock(&inode->i_lock); +- if (inode->i_state & (I_WB_SWITCH | I_FREEING) || ++ if (!(inode->i_sb->s_flags & MS_ACTIVE) || ++ inode->i_state & (I_WB_SWITCH | I_FREEING) || + inode_to_wb(inode) == isw->new_wb) { + spin_unlock(&inode->i_lock); + goto out_free; +@@ -480,6 +488,8 @@ static void inode_switch_wbs(struct inod + ihold(inode); + isw->inode = inode; + ++ atomic_inc(&isw_nr_in_flight); ++ + /* + * In addition to synchronizing among switchers, I_WB_SWITCH tells + * the RCU protected stat update paths to grab the mapping's +@@ -842,6 +852,33 @@ restart: + wb_put(last_wb); + } + ++/** ++ * cgroup_writeback_umount - flush inode wb switches for umount ++ * ++ * This function is called when a super_block is about to be destroyed and ++ * flushes in-flight inode wb switches. An inode wb switch goes through ++ * RCU and then workqueue, so the two need to be flushed in order to ensure ++ * that all previously scheduled switches are finished. As wb switches are ++ * rare occurrences and synchronize_rcu() can take a while, perform ++ * flushing iff wb switches are in flight. ++ */ ++void cgroup_writeback_umount(void) ++{ ++ if (atomic_read(&isw_nr_in_flight)) { ++ synchronize_rcu(); ++ flush_workqueue(isw_wq); ++ } ++} ++ ++static int __init cgroup_writeback_init(void) ++{ ++ isw_wq = alloc_workqueue("inode_switch_wbs", 0, 0); ++ if (!isw_wq) ++ return -ENOMEM; ++ return 0; ++} ++fs_initcall(cgroup_writeback_init); ++ + #else /* CONFIG_CGROUP_WRITEBACK */ + + static struct bdi_writeback * +@@ -1304,10 +1341,10 @@ __writeback_single_inode(struct inode *i + * we go e.g. from filesystem. Flusher thread uses __writeback_single_inode() + * and does more profound writeback list handling in writeback_sb_inodes(). + */ +-static int +-writeback_single_inode(struct inode *inode, struct bdi_writeback *wb, +- struct writeback_control *wbc) ++static int writeback_single_inode(struct inode *inode, ++ struct writeback_control *wbc) + { ++ struct bdi_writeback *wb; + int ret = 0; + + spin_lock(&inode->i_lock); +@@ -1345,7 +1382,8 @@ writeback_single_inode(struct inode *ino + ret = __writeback_single_inode(inode, wbc); + + wbc_detach_inode(wbc); +- spin_lock(&wb->list_lock); ++ ++ wb = inode_to_wb_and_lock_list(inode); + spin_lock(&inode->i_lock); + /* + * If inode is clean, remove it from writeback lists. Otherwise don't +@@ -1420,6 +1458,7 @@ static long writeback_sb_inodes(struct s + + while (!list_empty(&wb->b_io)) { + struct inode *inode = wb_inode(wb->b_io.prev); ++ struct bdi_writeback *tmp_wb; + + if (inode->i_sb != sb) { + if (work->sb) { +@@ -1510,15 +1549,23 @@ static long writeback_sb_inodes(struct s + cond_resched(); + } + +- +- spin_lock(&wb->list_lock); ++ /* ++ * Requeue @inode if still dirty. Be careful as @inode may ++ * have been switched to another wb in the meantime. ++ */ ++ tmp_wb = inode_to_wb_and_lock_list(inode); + spin_lock(&inode->i_lock); + if (!(inode->i_state & I_DIRTY_ALL)) + wrote++; +- requeue_inode(inode, wb, &wbc); ++ requeue_inode(inode, tmp_wb, &wbc); + inode_sync_complete(inode); + spin_unlock(&inode->i_lock); + ++ if (unlikely(tmp_wb != wb)) { ++ spin_unlock(&tmp_wb->list_lock); ++ spin_lock(&wb->list_lock); ++ } ++ + /* + * bail out to wb_writeback() often enough to check + * background threshold and other termination conditions. +@@ -2305,7 +2352,6 @@ EXPORT_SYMBOL(sync_inodes_sb); + */ + int write_inode_now(struct inode *inode, int sync) + { +- struct bdi_writeback *wb = &inode_to_bdi(inode)->wb; + struct writeback_control wbc = { + .nr_to_write = LONG_MAX, + .sync_mode = sync ? WB_SYNC_ALL : WB_SYNC_NONE, +@@ -2317,7 +2363,7 @@ int write_inode_now(struct inode *inode, + wbc.nr_to_write = 0; + + might_sleep(); +- return writeback_single_inode(inode, wb, &wbc); ++ return writeback_single_inode(inode, &wbc); + } + EXPORT_SYMBOL(write_inode_now); + +@@ -2334,7 +2380,7 @@ EXPORT_SYMBOL(write_inode_now); + */ + int sync_inode(struct inode *inode, struct writeback_control *wbc) + { +- return writeback_single_inode(inode, &inode_to_bdi(inode)->wb, wbc); ++ return writeback_single_inode(inode, wbc); + } + EXPORT_SYMBOL(sync_inode); + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fuse/cuse.c linux-libre-4.4.7-gnu/fs/fuse/cuse.c +--- linux-libre-4.4-gnu/fs/fuse/cuse.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/fuse/cuse.c 2016-04-12 12:09:26.000000000 -0400 +@@ -90,7 +90,7 @@ static struct list_head *cuse_conntbl_he + + static ssize_t cuse_read_iter(struct kiocb *kiocb, struct iov_iter *to) + { +- struct fuse_io_priv io = { .async = 0, .file = kiocb->ki_filp }; ++ struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(kiocb->ki_filp); + loff_t pos = 0; + + return fuse_direct_io(&io, to, &pos, FUSE_DIO_CUSE); +@@ -98,7 +98,7 @@ static ssize_t cuse_read_iter(struct kio + + static ssize_t cuse_write_iter(struct kiocb *kiocb, struct iov_iter *from) + { +- struct fuse_io_priv io = { .async = 0, .file = kiocb->ki_filp }; ++ struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(kiocb->ki_filp); + loff_t pos = 0; + /* + * No locking or generic_write_checks(), the server is +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fuse/file.c linux-libre-4.4.7-gnu/fs/fuse/file.c +--- linux-libre-4.4-gnu/fs/fuse/file.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/fuse/file.c 2016-04-12 12:09:26.000000000 -0400 +@@ -528,6 +528,11 @@ static void fuse_release_user_pages(stru + } + } + ++static void fuse_io_release(struct kref *kref) ++{ ++ kfree(container_of(kref, struct fuse_io_priv, refcnt)); ++} ++ + static ssize_t fuse_get_res_by_io(struct fuse_io_priv *io) + { + if (io->err) +@@ -585,8 +590,9 @@ static void fuse_aio_complete(struct fus + } + + io->iocb->ki_complete(io->iocb, res, 0); +- kfree(io); + } ++ ++ kref_put(&io->refcnt, fuse_io_release); + } + + static void fuse_aio_complete_req(struct fuse_conn *fc, struct fuse_req *req) +@@ -613,6 +619,7 @@ static size_t fuse_async_req_send(struct + size_t num_bytes, struct fuse_io_priv *io) + { + spin_lock(&io->lock); ++ kref_get(&io->refcnt); + io->size += num_bytes; + io->reqs++; + spin_unlock(&io->lock); +@@ -691,7 +698,7 @@ static void fuse_short_read(struct fuse_ + + static int fuse_do_readpage(struct file *file, struct page *page) + { +- struct fuse_io_priv io = { .async = 0, .file = file }; ++ struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(file); + struct inode *inode = page->mapping->host; + struct fuse_conn *fc = get_fuse_conn(inode); + struct fuse_req *req; +@@ -984,7 +991,7 @@ static size_t fuse_send_write_pages(stru + size_t res; + unsigned offset; + unsigned i; +- struct fuse_io_priv io = { .async = 0, .file = file }; ++ struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(file); + + for (i = 0; i < req->num_pages; i++) + fuse_wait_on_page_writeback(inode, req->pages[i]->index); +@@ -1398,7 +1405,7 @@ static ssize_t __fuse_direct_read(struct + + static ssize_t fuse_direct_read_iter(struct kiocb *iocb, struct iov_iter *to) + { +- struct fuse_io_priv io = { .async = 0, .file = iocb->ki_filp }; ++ struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(iocb->ki_filp); + return __fuse_direct_read(&io, to, &iocb->ki_pos); + } + +@@ -1406,7 +1413,7 @@ static ssize_t fuse_direct_write_iter(st + { + struct file *file = iocb->ki_filp; + struct inode *inode = file_inode(file); +- struct fuse_io_priv io = { .async = 0, .file = file }; ++ struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(file); + ssize_t res; + + if (is_bad_inode(inode)) +@@ -2786,6 +2793,7 @@ fuse_direct_IO(struct kiocb *iocb, struc + loff_t i_size; + size_t count = iov_iter_count(iter); + struct fuse_io_priv *io; ++ bool is_sync = is_sync_kiocb(iocb); + + pos = offset; + inode = file->f_mapping->host; +@@ -2806,6 +2814,7 @@ fuse_direct_IO(struct kiocb *iocb, struc + if (!io) + return -ENOMEM; + spin_lock_init(&io->lock); ++ kref_init(&io->refcnt); + io->reqs = 1; + io->bytes = -1; + io->size = 0; +@@ -2825,12 +2834,18 @@ fuse_direct_IO(struct kiocb *iocb, struc + * to wait on real async I/O requests, so we must submit this request + * synchronously. + */ +- if (!is_sync_kiocb(iocb) && (offset + count > i_size) && ++ if (!is_sync && (offset + count > i_size) && + iov_iter_rw(iter) == WRITE) + io->async = false; + +- if (io->async && is_sync_kiocb(iocb)) ++ if (io->async && is_sync) { ++ /* ++ * Additional reference to keep io around after ++ * calling fuse_aio_complete() ++ */ ++ kref_get(&io->refcnt); + io->done = &wait; ++ } + + if (iov_iter_rw(iter) == WRITE) { + ret = fuse_direct_io(io, iter, &pos, FUSE_DIO_WRITE); +@@ -2843,14 +2858,14 @@ fuse_direct_IO(struct kiocb *iocb, struc + fuse_aio_complete(io, ret < 0 ? ret : 0, -1); + + /* we have a non-extending, async request, so return */ +- if (!is_sync_kiocb(iocb)) ++ if (!is_sync) + return -EIOCBQUEUED; + + wait_for_completion(&wait); + ret = fuse_get_res_by_io(io); + } + +- kfree(io); ++ kref_put(&io->refcnt, fuse_io_release); + + if (iov_iter_rw(iter) == WRITE) { + if (ret > 0) +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fuse/fuse_i.h linux-libre-4.4.7-gnu/fs/fuse/fuse_i.h +--- linux-libre-4.4-gnu/fs/fuse/fuse_i.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/fuse/fuse_i.h 2016-04-12 12:09:26.000000000 -0400 +@@ -22,6 +22,7 @@ + #include <linux/rbtree.h> + #include <linux/poll.h> + #include <linux/workqueue.h> ++#include <linux/kref.h> + + /** Max number of pages that can be used in a single read request */ + #define FUSE_MAX_PAGES_PER_REQ 32 +@@ -243,6 +244,7 @@ struct fuse_args { + + /** The request IO state (for asynchronous processing) */ + struct fuse_io_priv { ++ struct kref refcnt; + int async; + spinlock_t lock; + unsigned reqs; +@@ -256,6 +258,13 @@ struct fuse_io_priv { + struct completion *done; + }; + ++#define FUSE_IO_PRIV_SYNC(f) \ ++{ \ ++ .refcnt = { ATOMIC_INIT(1) }, \ ++ .async = 0, \ ++ .file = f, \ ++} ++ + /** + * Request flags + * +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/hostfs/hostfs_kern.c linux-libre-4.4.7-gnu/fs/hostfs/hostfs_kern.c +--- linux-libre-4.4-gnu/fs/hostfs/hostfs_kern.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/hostfs/hostfs_kern.c 2016-04-12 12:09:26.000000000 -0400 +@@ -730,15 +730,13 @@ static int hostfs_mknod(struct inode *di + + init_special_inode(inode, mode, dev); + err = do_mknod(name, mode, MAJOR(dev), MINOR(dev)); +- if (!err) ++ if (err) + goto out_free; + + err = read_name(inode, name); + __putname(name); + if (err) + goto out_put; +- if (err) +- goto out_put; + + d_instantiate(dentry, inode); + return 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/hpfs/namei.c linux-libre-4.4.7-gnu/fs/hpfs/namei.c +--- linux-libre-4.4-gnu/fs/hpfs/namei.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/hpfs/namei.c 2016-04-12 12:09:26.000000000 -0400 +@@ -375,12 +375,11 @@ static int hpfs_unlink(struct inode *dir + struct inode *inode = d_inode(dentry); + dnode_secno dno; + int r; +- int rep = 0; + int err; + + hpfs_lock(dir->i_sb); + hpfs_adjust_length(name, &len); +-again: ++ + err = -ENOENT; + de = map_dirent(dir, hpfs_i(dir)->i_dno, name, len, &dno, &qbh); + if (!de) +@@ -400,33 +399,9 @@ again: + hpfs_error(dir->i_sb, "there was error when removing dirent"); + err = -EFSERROR; + break; +- case 2: /* no space for deleting, try to truncate file */ +- ++ case 2: /* no space for deleting */ + err = -ENOSPC; +- if (rep++) +- break; +- +- dentry_unhash(dentry); +- if (!d_unhashed(dentry)) { +- hpfs_unlock(dir->i_sb); +- return -ENOSPC; +- } +- if (generic_permission(inode, MAY_WRITE) || +- !S_ISREG(inode->i_mode) || +- get_write_access(inode)) { +- d_rehash(dentry); +- } else { +- struct iattr newattrs; +- /*pr_info("truncating file before delete.\n");*/ +- newattrs.ia_size = 0; +- newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME; +- err = notify_change(dentry, &newattrs, NULL); +- put_write_access(inode); +- if (!err) +- goto again; +- } +- hpfs_unlock(dir->i_sb); +- return -ENOSPC; ++ break; + default: + drop_nlink(inode); + err = 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/hugetlbfs/inode.c linux-libre-4.4.7-gnu/fs/hugetlbfs/inode.c +--- linux-libre-4.4-gnu/fs/hugetlbfs/inode.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/hugetlbfs/inode.c 2016-04-12 12:09:26.000000000 -0400 +@@ -463,6 +463,7 @@ hugetlb_vmdelete_list(struct rb_root *ro + */ + vma_interval_tree_foreach(vma, root, start, end ? end : ULONG_MAX) { + unsigned long v_offset; ++ unsigned long v_end; + + /* + * Can the expression below overflow on 32-bit arches? +@@ -475,15 +476,17 @@ hugetlb_vmdelete_list(struct rb_root *ro + else + v_offset = 0; + +- if (end) { +- end = ((end - start) << PAGE_SHIFT) + +- vma->vm_start + v_offset; +- if (end > vma->vm_end) +- end = vma->vm_end; +- } else +- end = vma->vm_end; ++ if (!end) ++ v_end = vma->vm_end; ++ else { ++ v_end = ((end - vma->vm_pgoff) << PAGE_SHIFT) ++ + vma->vm_start; ++ if (v_end > vma->vm_end) ++ v_end = vma->vm_end; ++ } + +- unmap_hugepage_range(vma, vma->vm_start + v_offset, end, NULL); ++ unmap_hugepage_range(vma, vma->vm_start + v_offset, v_end, ++ NULL); + } + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jbd2/journal.c linux-libre-4.4.7-gnu/fs/jbd2/journal.c +--- linux-libre-4.4-gnu/fs/jbd2/journal.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/jbd2/journal.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1408,11 +1408,12 @@ out: + /** + * jbd2_mark_journal_empty() - Mark on disk journal as empty. + * @journal: The journal to update. ++ * @write_op: With which operation should we write the journal sb + * + * Update a journal's dynamic superblock fields to show that journal is empty. + * Write updated superblock to disk waiting for IO to complete. + */ +-static void jbd2_mark_journal_empty(journal_t *journal) ++static void jbd2_mark_journal_empty(journal_t *journal, int write_op) + { + journal_superblock_t *sb = journal->j_superblock; + +@@ -1430,7 +1431,7 @@ static void jbd2_mark_journal_empty(jour + sb->s_start = cpu_to_be32(0); + read_unlock(&journal->j_state_lock); + +- jbd2_write_superblock(journal, WRITE_FUA); ++ jbd2_write_superblock(journal, write_op); + + /* Log is no longer empty */ + write_lock(&journal->j_state_lock); +@@ -1716,7 +1717,13 @@ int jbd2_journal_destroy(journal_t *jour + if (journal->j_sb_buffer) { + if (!is_journal_aborted(journal)) { + mutex_lock(&journal->j_checkpoint_mutex); +- jbd2_mark_journal_empty(journal); ++ ++ write_lock(&journal->j_state_lock); ++ journal->j_tail_sequence = ++ ++journal->j_transaction_sequence; ++ write_unlock(&journal->j_state_lock); ++ ++ jbd2_mark_journal_empty(journal, WRITE_FLUSH_FUA); + mutex_unlock(&journal->j_checkpoint_mutex); + } else + err = -EIO; +@@ -1975,7 +1982,7 @@ int jbd2_journal_flush(journal_t *journa + * the magic code for a fully-recovered superblock. Any future + * commits of data to the journal will restore the current + * s_start value. */ +- jbd2_mark_journal_empty(journal); ++ jbd2_mark_journal_empty(journal, WRITE_FUA); + mutex_unlock(&journal->j_checkpoint_mutex); + write_lock(&journal->j_state_lock); + J_ASSERT(!journal->j_running_transaction); +@@ -2021,7 +2028,7 @@ int jbd2_journal_wipe(journal_t *journal + if (write) { + /* Lock to make assertions happy... */ + mutex_lock(&journal->j_checkpoint_mutex); +- jbd2_mark_journal_empty(journal); ++ jbd2_mark_journal_empty(journal, WRITE_FUA); + mutex_unlock(&journal->j_checkpoint_mutex); + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jffs2/build.c linux-libre-4.4.7-gnu/fs/jffs2/build.c +--- linux-libre-4.4-gnu/fs/jffs2/build.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/jffs2/build.c 2016-04-12 12:09:26.000000000 -0400 +@@ -49,7 +49,8 @@ next_inode(int *i, struct jffs2_inode_ca + + + static void jffs2_build_inode_pass1(struct jffs2_sb_info *c, +- struct jffs2_inode_cache *ic) ++ struct jffs2_inode_cache *ic, ++ int *dir_hardlinks) + { + struct jffs2_full_dirent *fd; + +@@ -68,19 +69,21 @@ static void jffs2_build_inode_pass1(stru + dbg_fsbuild("child \"%s\" (ino #%u) of dir ino #%u doesn't exist!\n", + fd->name, fd->ino, ic->ino); + jffs2_mark_node_obsolete(c, fd->raw); ++ /* Clear the ic/raw union so it doesn't cause problems later. */ ++ fd->ic = NULL; + continue; + } + ++ /* From this point, fd->raw is no longer used so we can set fd->ic */ ++ fd->ic = child_ic; ++ child_ic->pino_nlink++; ++ /* If we appear (at this stage) to have hard-linked directories, ++ * set a flag to trigger a scan later */ + if (fd->type == DT_DIR) { +- if (child_ic->pino_nlink) { +- JFFS2_ERROR("child dir \"%s\" (ino #%u) of dir ino #%u appears to be a hard link\n", +- fd->name, fd->ino, ic->ino); +- /* TODO: What do we do about it? */ +- } else { +- child_ic->pino_nlink = ic->ino; +- } +- } else +- child_ic->pino_nlink++; ++ child_ic->flags |= INO_FLAGS_IS_DIR; ++ if (child_ic->pino_nlink > 1) ++ *dir_hardlinks = 1; ++ } + + dbg_fsbuild("increased nlink for child \"%s\" (ino #%u)\n", fd->name, fd->ino); + /* Can't free scan_dents so far. We might need them in pass 2 */ +@@ -94,8 +97,7 @@ static void jffs2_build_inode_pass1(stru + */ + static int jffs2_build_filesystem(struct jffs2_sb_info *c) + { +- int ret; +- int i; ++ int ret, i, dir_hardlinks = 0; + struct jffs2_inode_cache *ic; + struct jffs2_full_dirent *fd; + struct jffs2_full_dirent *dead_fds = NULL; +@@ -119,7 +121,7 @@ static int jffs2_build_filesystem(struct + /* Now scan the directory tree, increasing nlink according to every dirent found. */ + for_each_inode(i, c, ic) { + if (ic->scan_dents) { +- jffs2_build_inode_pass1(c, ic); ++ jffs2_build_inode_pass1(c, ic, &dir_hardlinks); + cond_resched(); + } + } +@@ -155,6 +157,20 @@ static int jffs2_build_filesystem(struct + } + + dbg_fsbuild("pass 2a complete\n"); ++ ++ if (dir_hardlinks) { ++ /* If we detected directory hardlinks earlier, *hopefully* ++ * they are gone now because some of the links were from ++ * dead directories which still had some old dirents lying ++ * around and not yet garbage-collected, but which have ++ * been discarded above. So clear the pino_nlink field ++ * in each directory, so that the final scan below can ++ * print appropriate warnings. */ ++ for_each_inode(i, c, ic) { ++ if (ic->flags & INO_FLAGS_IS_DIR) ++ ic->pino_nlink = 0; ++ } ++ } + dbg_fsbuild("freeing temporary data structures\n"); + + /* Finally, we can scan again and free the dirent structs */ +@@ -162,6 +178,33 @@ static int jffs2_build_filesystem(struct + while(ic->scan_dents) { + fd = ic->scan_dents; + ic->scan_dents = fd->next; ++ /* We do use the pino_nlink field to count nlink of ++ * directories during fs build, so set it to the ++ * parent ino# now. Now that there's hopefully only ++ * one. */ ++ if (fd->type == DT_DIR) { ++ if (!fd->ic) { ++ /* We'll have complained about it and marked the coresponding ++ raw node obsolete already. Just skip it. */ ++ continue; ++ } ++ ++ /* We *have* to have set this in jffs2_build_inode_pass1() */ ++ BUG_ON(!(fd->ic->flags & INO_FLAGS_IS_DIR)); ++ ++ /* We clear ic->pino_nlink ∀ directories' ic *only* if dir_hardlinks ++ * is set. Otherwise, we know this should never trigger anyway, so ++ * we don't do the check. And ic->pino_nlink still contains the nlink ++ * value (which is 1). */ ++ if (dir_hardlinks && fd->ic->pino_nlink) { ++ JFFS2_ERROR("child dir \"%s\" (ino #%u) of dir ino #%u is also hard linked from dir ino #%u\n", ++ fd->name, fd->ino, ic->ino, fd->ic->pino_nlink); ++ /* Should we unlink it from its previous parent? */ ++ } ++ ++ /* For directories, ic->pino_nlink holds that parent inode # */ ++ fd->ic->pino_nlink = ic->ino; ++ } + jffs2_free_full_dirent(fd); + } + ic->scan_dents = NULL; +@@ -240,11 +283,7 @@ static void jffs2_build_remove_unlinked_ + + /* Reduce nlink of the child. If it's now zero, stick it on the + dead_fds list to be cleaned up later. Else just free the fd */ +- +- if (fd->type == DT_DIR) +- child_ic->pino_nlink = 0; +- else +- child_ic->pino_nlink--; ++ child_ic->pino_nlink--; + + if (!child_ic->pino_nlink) { + dbg_fsbuild("inode #%u (\"%s\") now has no links; adding to dead_fds list.\n", +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jffs2/dir.c linux-libre-4.4.7-gnu/fs/jffs2/dir.c +--- linux-libre-4.4-gnu/fs/jffs2/dir.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/jffs2/dir.c 2016-04-12 12:09:26.000000000 -0400 +@@ -843,9 +843,14 @@ static int jffs2_rename (struct inode *o + + pr_notice("%s(): Link succeeded, unlink failed (err %d). You now have a hard link\n", + __func__, ret); +- /* Might as well let the VFS know */ +- d_instantiate(new_dentry, d_inode(old_dentry)); +- ihold(d_inode(old_dentry)); ++ /* ++ * We can't keep the target in dcache after that. ++ * For one thing, we can't afford dentry aliases for directories. ++ * For another, if there was a victim, we _can't_ set new inode ++ * for that sucker and we have to trigger mount eviction - the ++ * caller won't do it on its own since we are returning an error. ++ */ ++ d_invalidate(new_dentry); + new_dir_i->i_mtime = new_dir_i->i_ctime = ITIME(now); + return ret; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jffs2/file.c linux-libre-4.4.7-gnu/fs/jffs2/file.c +--- linux-libre-4.4-gnu/fs/jffs2/file.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/jffs2/file.c 2016-04-12 12:09:26.000000000 -0400 +@@ -137,39 +137,33 @@ static int jffs2_write_begin(struct file + struct page *pg; + struct inode *inode = mapping->host; + struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode); +- struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb); +- struct jffs2_raw_inode ri; +- uint32_t alloc_len = 0; + pgoff_t index = pos >> PAGE_CACHE_SHIFT; + uint32_t pageofs = index << PAGE_CACHE_SHIFT; + int ret = 0; + +- jffs2_dbg(1, "%s()\n", __func__); +- +- if (pageofs > inode->i_size) { +- ret = jffs2_reserve_space(c, sizeof(ri), &alloc_len, +- ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE); +- if (ret) +- return ret; +- } +- +- mutex_lock(&f->sem); + pg = grab_cache_page_write_begin(mapping, index, flags); +- if (!pg) { +- if (alloc_len) +- jffs2_complete_reservation(c); +- mutex_unlock(&f->sem); ++ if (!pg) + return -ENOMEM; +- } + *pagep = pg; + +- if (alloc_len) { ++ jffs2_dbg(1, "%s()\n", __func__); ++ ++ if (pageofs > inode->i_size) { + /* Make new hole frag from old EOF to new page */ ++ struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb); ++ struct jffs2_raw_inode ri; + struct jffs2_full_dnode *fn; ++ uint32_t alloc_len; + + jffs2_dbg(1, "Writing new hole frag 0x%x-0x%x between current EOF and new page\n", + (unsigned int)inode->i_size, pageofs); + ++ ret = jffs2_reserve_space(c, sizeof(ri), &alloc_len, ++ ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE); ++ if (ret) ++ goto out_page; ++ ++ mutex_lock(&f->sem); + memset(&ri, 0, sizeof(ri)); + + ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK); +@@ -196,6 +190,7 @@ static int jffs2_write_begin(struct file + if (IS_ERR(fn)) { + ret = PTR_ERR(fn); + jffs2_complete_reservation(c); ++ mutex_unlock(&f->sem); + goto out_page; + } + ret = jffs2_add_full_dnode_to_inode(c, f, fn); +@@ -210,10 +205,12 @@ static int jffs2_write_begin(struct file + jffs2_mark_node_obsolete(c, fn->raw); + jffs2_free_full_dnode(fn); + jffs2_complete_reservation(c); ++ mutex_unlock(&f->sem); + goto out_page; + } + jffs2_complete_reservation(c); + inode->i_size = pageofs; ++ mutex_unlock(&f->sem); + } + + /* +@@ -222,18 +219,18 @@ static int jffs2_write_begin(struct file + * case of a short-copy. + */ + if (!PageUptodate(pg)) { ++ mutex_lock(&f->sem); + ret = jffs2_do_readpage_nolock(inode, pg); ++ mutex_unlock(&f->sem); + if (ret) + goto out_page; + } +- mutex_unlock(&f->sem); + jffs2_dbg(1, "end write_begin(). pg->flags %lx\n", pg->flags); + return ret; + + out_page: + unlock_page(pg); + page_cache_release(pg); +- mutex_unlock(&f->sem); + return ret; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jffs2/gc.c linux-libre-4.4.7-gnu/fs/jffs2/gc.c +--- linux-libre-4.4-gnu/fs/jffs2/gc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/jffs2/gc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1296,14 +1296,17 @@ static int jffs2_garbage_collect_dnode(s + BUG_ON(start > orig_start); + } + +- /* First, use readpage() to read the appropriate page into the page cache */ +- /* Q: What happens if we actually try to GC the _same_ page for which commit_write() +- * triggered garbage collection in the first place? +- * A: I _think_ it's OK. read_cache_page shouldn't deadlock, we'll write out the +- * page OK. We'll actually write it out again in commit_write, which is a little +- * suboptimal, but at least we're correct. +- */ ++ /* The rules state that we must obtain the page lock *before* f->sem, so ++ * drop f->sem temporarily. Since we also hold c->alloc_sem, nothing's ++ * actually going to *change* so we're safe; we only allow reading. ++ * ++ * It is important to note that jffs2_write_begin() will ensure that its ++ * page is marked Uptodate before allocating space. That means that if we ++ * end up here trying to GC the *same* page that jffs2_write_begin() is ++ * trying to write out, read_cache_page() will not deadlock. */ ++ mutex_unlock(&f->sem); + pg_ptr = jffs2_gc_fetch_page(c, f, start, &pg); ++ mutex_lock(&f->sem); + + if (IS_ERR(pg_ptr)) { + pr_warn("read_cache_page() returned error: %ld\n", +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jffs2/nodelist.h linux-libre-4.4.7-gnu/fs/jffs2/nodelist.h +--- linux-libre-4.4-gnu/fs/jffs2/nodelist.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/jffs2/nodelist.h 2016-04-12 12:09:26.000000000 -0400 +@@ -194,6 +194,7 @@ struct jffs2_inode_cache { + #define INO_STATE_CLEARING 6 /* In clear_inode() */ + + #define INO_FLAGS_XATTR_CHECKED 0x01 /* has no duplicate xattr_ref */ ++#define INO_FLAGS_IS_DIR 0x02 /* is a directory */ + + #define RAWNODE_CLASS_INODE_CACHE 0 + #define RAWNODE_CLASS_XATTR_DATUM 1 +@@ -249,7 +250,10 @@ struct jffs2_readinode_info + + struct jffs2_full_dirent + { +- struct jffs2_raw_node_ref *raw; ++ union { ++ struct jffs2_raw_node_ref *raw; ++ struct jffs2_inode_cache *ic; /* Just during part of build */ ++ }; + struct jffs2_full_dirent *next; + uint32_t version; + uint32_t ino; /* == zero for unlink */ +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jffs2/README.Locking linux-libre-4.4.7-gnu/fs/jffs2/README.Locking +--- linux-libre-4.4-gnu/fs/jffs2/README.Locking 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/jffs2/README.Locking 2016-04-12 12:09:26.000000000 -0400 +@@ -2,10 +2,6 @@ + JFFS2 LOCKING DOCUMENTATION + --------------------------- + +-At least theoretically, JFFS2 does not require the Big Kernel Lock +-(BKL), which was always helpfully obtained for it by Linux 2.4 VFS +-code. It has its own locking, as described below. +- + This document attempts to describe the existing locking rules for + JFFS2. It is not expected to remain perfectly up to date, but ought to + be fairly close. +@@ -69,6 +65,7 @@ Ordering constraints: + any f->sem held. + 2. Never attempt to lock two file mutexes in one thread. + No ordering rules have been made for doing so. ++ 3. Never lock a page cache page with f->sem held. + + + erase_completion_lock spinlock +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/locks.c linux-libre-4.4.7-gnu/fs/locks.c +--- linux-libre-4.4-gnu/fs/locks.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/locks.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2182,7 +2182,6 @@ int fcntl_setlk(unsigned int fd, struct + goto out; + } + +-again: + error = flock_to_posix_lock(filp, file_lock, &flock); + if (error) + goto out; +@@ -2224,19 +2223,22 @@ again: + * Attempt to detect a close/fcntl race and recover by + * releasing the lock that was just acquired. + */ +- /* +- * we need that spin_lock here - it prevents reordering between +- * update of i_flctx->flc_posix and check for it done in close(). +- * rcu_read_lock() wouldn't do. +- */ +- spin_lock(¤t->files->file_lock); +- f = fcheck(fd); +- spin_unlock(¤t->files->file_lock); +- if (!error && f != filp && flock.l_type != F_UNLCK) { +- flock.l_type = F_UNLCK; +- goto again; ++ if (!error && file_lock->fl_type != F_UNLCK) { ++ /* ++ * We need that spin_lock here - it prevents reordering between ++ * update of i_flctx->flc_posix and check for it done in ++ * close(). rcu_read_lock() wouldn't do. ++ */ ++ spin_lock(¤t->files->file_lock); ++ f = fcheck(fd); ++ spin_unlock(¤t->files->file_lock); ++ if (f != filp) { ++ file_lock->fl_type = F_UNLCK; ++ error = do_lock_file_wait(filp, cmd, file_lock); ++ WARN_ON_ONCE(error); ++ error = -EBADF; ++ } + } +- + out: + locks_free_lock(file_lock); + return error; +@@ -2322,7 +2324,6 @@ int fcntl_setlk64(unsigned int fd, struc + goto out; + } + +-again: + error = flock64_to_posix_lock(filp, file_lock, &flock); + if (error) + goto out; +@@ -2364,14 +2365,22 @@ again: + * Attempt to detect a close/fcntl race and recover by + * releasing the lock that was just acquired. + */ +- spin_lock(¤t->files->file_lock); +- f = fcheck(fd); +- spin_unlock(¤t->files->file_lock); +- if (!error && f != filp && flock.l_type != F_UNLCK) { +- flock.l_type = F_UNLCK; +- goto again; ++ if (!error && file_lock->fl_type != F_UNLCK) { ++ /* ++ * We need that spin_lock here - it prevents reordering between ++ * update of i_flctx->flc_posix and check for it done in ++ * close(). rcu_read_lock() wouldn't do. ++ */ ++ spin_lock(¤t->files->file_lock); ++ f = fcheck(fd); ++ spin_unlock(¤t->files->file_lock); ++ if (f != filp) { ++ file_lock->fl_type = F_UNLCK; ++ error = do_lock_file_wait(filp, cmd, file_lock); ++ WARN_ON_ONCE(error); ++ error = -EBADF; ++ } + } +- + out: + locks_free_lock(file_lock); + return error; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/namei.c linux-libre-4.4.7-gnu/fs/namei.c +--- linux-libre-4.4-gnu/fs/namei.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/namei.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1711,6 +1711,11 @@ static inline int should_follow_link(str + return 0; + if (!follow) + return 0; ++ /* make sure that d_is_symlink above matches inode */ ++ if (nd->flags & LOOKUP_RCU) { ++ if (read_seqcount_retry(&link->dentry->d_seq, seq)) ++ return -ECHILD; ++ } + return pick_link(nd, link, inode, seq); + } + +@@ -1742,11 +1747,11 @@ static int walk_component(struct nameida + if (err < 0) + return err; + +- inode = d_backing_inode(path.dentry); + seq = 0; /* we are already out of RCU mode */ + err = -ENOENT; + if (d_is_negative(path.dentry)) + goto out_path_put; ++ inode = d_backing_inode(path.dentry); + } + + if (flags & WALK_PUT) +@@ -3130,12 +3135,12 @@ retry_lookup: + return error; + + BUG_ON(nd->flags & LOOKUP_RCU); +- inode = d_backing_inode(path.dentry); + seq = 0; /* out of RCU mode, so the value doesn't matter */ + if (unlikely(d_is_negative(path.dentry))) { + path_to_nameidata(&path, nd); + return -ENOENT; + } ++ inode = d_backing_inode(path.dentry); + finish_lookup: + if (nd->depth) + put_link(nd); +@@ -3144,11 +3149,6 @@ finish_lookup: + if (unlikely(error)) + return error; + +- if (unlikely(d_is_symlink(path.dentry)) && !(open_flag & O_PATH)) { +- path_to_nameidata(&path, nd); +- return -ELOOP; +- } +- + if ((nd->flags & LOOKUP_RCU) || nd->path.mnt != path.mnt) { + path_to_nameidata(&path, nd); + } else { +@@ -3167,6 +3167,10 @@ finish_open: + return error; + } + audit_inode(nd->name, nd->path.dentry, 0); ++ if (unlikely(d_is_symlink(nd->path.dentry)) && !(open_flag & O_PATH)) { ++ error = -ELOOP; ++ goto out; ++ } + error = -EISDIR; + if ((open_flag & O_CREAT) && d_is_dir(nd->path.dentry)) + goto out; +@@ -3210,6 +3214,10 @@ opened: + goto exit_fput; + } + out: ++ if (unlikely(error > 0)) { ++ WARN_ON(1); ++ error = -EINVAL; ++ } + if (got_write) + mnt_drop_write(nd->path.mnt); + path_put(&save_parent); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ncpfs/dir.c linux-libre-4.4.7-gnu/fs/ncpfs/dir.c +--- linux-libre-4.4-gnu/fs/ncpfs/dir.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/ncpfs/dir.c 2016-04-12 12:09:26.000000000 -0400 +@@ -633,7 +633,7 @@ ncp_fill_cache(struct file *file, struct + d_rehash(newdent); + } else { + spin_lock(&dentry->d_lock); +- NCP_FINFO(inode)->flags &= ~NCPI_DIR_CACHE; ++ NCP_FINFO(dir)->flags &= ~NCPI_DIR_CACHE; + spin_unlock(&dentry->d_lock); + } + } else { +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/flexfilelayout/flexfilelayout.c linux-libre-4.4.7-gnu/fs/nfs/flexfilelayout/flexfilelayout.c +--- linux-libre-4.4-gnu/fs/nfs/flexfilelayout/flexfilelayout.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/nfs/flexfilelayout/flexfilelayout.c 2016-04-12 12:09:26.000000000 -0400 +@@ -145,7 +145,7 @@ static bool ff_mirror_match_fh(const str + return false; + for (i = 0; i < m1->fh_versions_cnt; i++) { + bool found_fh = false; +- for (j = 0; j < m2->fh_versions_cnt; i++) { ++ for (j = 0; j < m2->fh_versions_cnt; j++) { + if (nfs_compare_fh(&m1->fh_versions[i], + &m2->fh_versions[j]) == 0) { + found_fh = true; +@@ -1859,11 +1859,9 @@ ff_layout_encode_layoutreturn(struct pnf + start = xdr_reserve_space(xdr, 4); + BUG_ON(!start); + +- if (ff_layout_encode_ioerr(flo, xdr, args)) +- goto out; +- ++ ff_layout_encode_ioerr(flo, xdr, args); + ff_layout_encode_iostats(flo, xdr, args); +-out: ++ + *start = cpu_to_be32((xdr->p - start - 1) * 4); + dprintk("%s: Return\n", __func__); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/inode.c linux-libre-4.4.7-gnu/fs/nfs/inode.c +--- linux-libre-4.4-gnu/fs/nfs/inode.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/nfs/inode.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1641,6 +1641,7 @@ static int nfs_update_inode(struct inode + unsigned long invalid = 0; + unsigned long now = jiffies; + unsigned long save_cache_validity; ++ bool cache_revalidated = true; + + dfprintk(VFS, "NFS: %s(%s/%lu fh_crc=0x%08x ct=%d info=0x%x)\n", + __func__, inode->i_sb->s_id, inode->i_ino, +@@ -1702,22 +1703,28 @@ static int nfs_update_inode(struct inode + nfs_force_lookup_revalidate(inode); + inode->i_version = fattr->change_attr; + } +- } else ++ } else { + nfsi->cache_validity |= save_cache_validity; ++ cache_revalidated = false; ++ } + + if (fattr->valid & NFS_ATTR_FATTR_MTIME) { + memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime)); +- } else if (server->caps & NFS_CAP_MTIME) ++ } else if (server->caps & NFS_CAP_MTIME) { + nfsi->cache_validity |= save_cache_validity & + (NFS_INO_INVALID_ATTR + | NFS_INO_REVAL_FORCED); ++ cache_revalidated = false; ++ } + + if (fattr->valid & NFS_ATTR_FATTR_CTIME) { + memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime)); +- } else if (server->caps & NFS_CAP_CTIME) ++ } else if (server->caps & NFS_CAP_CTIME) { + nfsi->cache_validity |= save_cache_validity & + (NFS_INO_INVALID_ATTR + | NFS_INO_REVAL_FORCED); ++ cache_revalidated = false; ++ } + + /* Check if our cached file size is stale */ + if (fattr->valid & NFS_ATTR_FATTR_SIZE) { +@@ -1737,19 +1744,23 @@ static int nfs_update_inode(struct inode + (long long)cur_isize, + (long long)new_isize); + } +- } else ++ } else { + nfsi->cache_validity |= save_cache_validity & + (NFS_INO_INVALID_ATTR + | NFS_INO_REVAL_PAGECACHE + | NFS_INO_REVAL_FORCED); ++ cache_revalidated = false; ++ } + + + if (fattr->valid & NFS_ATTR_FATTR_ATIME) + memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime)); +- else if (server->caps & NFS_CAP_ATIME) ++ else if (server->caps & NFS_CAP_ATIME) { + nfsi->cache_validity |= save_cache_validity & + (NFS_INO_INVALID_ATIME + | NFS_INO_REVAL_FORCED); ++ cache_revalidated = false; ++ } + + if (fattr->valid & NFS_ATTR_FATTR_MODE) { + if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO)) { +@@ -1758,36 +1769,42 @@ static int nfs_update_inode(struct inode + inode->i_mode = newmode; + invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; + } +- } else if (server->caps & NFS_CAP_MODE) ++ } else if (server->caps & NFS_CAP_MODE) { + nfsi->cache_validity |= save_cache_validity & + (NFS_INO_INVALID_ATTR + | NFS_INO_INVALID_ACCESS + | NFS_INO_INVALID_ACL + | NFS_INO_REVAL_FORCED); ++ cache_revalidated = false; ++ } + + if (fattr->valid & NFS_ATTR_FATTR_OWNER) { + if (!uid_eq(inode->i_uid, fattr->uid)) { + invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; + inode->i_uid = fattr->uid; + } +- } else if (server->caps & NFS_CAP_OWNER) ++ } else if (server->caps & NFS_CAP_OWNER) { + nfsi->cache_validity |= save_cache_validity & + (NFS_INO_INVALID_ATTR + | NFS_INO_INVALID_ACCESS + | NFS_INO_INVALID_ACL + | NFS_INO_REVAL_FORCED); ++ cache_revalidated = false; ++ } + + if (fattr->valid & NFS_ATTR_FATTR_GROUP) { + if (!gid_eq(inode->i_gid, fattr->gid)) { + invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; + inode->i_gid = fattr->gid; + } +- } else if (server->caps & NFS_CAP_OWNER_GROUP) ++ } else if (server->caps & NFS_CAP_OWNER_GROUP) { + nfsi->cache_validity |= save_cache_validity & + (NFS_INO_INVALID_ATTR + | NFS_INO_INVALID_ACCESS + | NFS_INO_INVALID_ACL + | NFS_INO_REVAL_FORCED); ++ cache_revalidated = false; ++ } + + if (fattr->valid & NFS_ATTR_FATTR_NLINK) { + if (inode->i_nlink != fattr->nlink) { +@@ -1796,19 +1813,22 @@ static int nfs_update_inode(struct inode + invalid |= NFS_INO_INVALID_DATA; + set_nlink(inode, fattr->nlink); + } +- } else if (server->caps & NFS_CAP_NLINK) ++ } else if (server->caps & NFS_CAP_NLINK) { + nfsi->cache_validity |= save_cache_validity & + (NFS_INO_INVALID_ATTR + | NFS_INO_REVAL_FORCED); ++ cache_revalidated = false; ++ } + + if (fattr->valid & NFS_ATTR_FATTR_SPACE_USED) { + /* + * report the blocks in 512byte units + */ + inode->i_blocks = nfs_calc_block_size(fattr->du.nfs3.used); +- } +- if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED) ++ } else if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED) + inode->i_blocks = fattr->du.nfs2.blocks; ++ else ++ cache_revalidated = false; + + /* Update attrtimeo value if we're out of the unstable period */ + if (invalid & NFS_INO_INVALID_ATTR) { +@@ -1818,9 +1838,13 @@ static int nfs_update_inode(struct inode + /* Set barrier to be more recent than all outstanding updates */ + nfsi->attr_gencount = nfs_inc_attr_generation_counter(); + } else { +- if (!time_in_range_open(now, nfsi->attrtimeo_timestamp, nfsi->attrtimeo_timestamp + nfsi->attrtimeo)) { +- if ((nfsi->attrtimeo <<= 1) > NFS_MAXATTRTIMEO(inode)) +- nfsi->attrtimeo = NFS_MAXATTRTIMEO(inode); ++ if (cache_revalidated) { ++ if (!time_in_range_open(now, nfsi->attrtimeo_timestamp, ++ nfsi->attrtimeo_timestamp + nfsi->attrtimeo)) { ++ nfsi->attrtimeo <<= 1; ++ if (nfsi->attrtimeo > NFS_MAXATTRTIMEO(inode)) ++ nfsi->attrtimeo = NFS_MAXATTRTIMEO(inode); ++ } + nfsi->attrtimeo_timestamp = now; + } + /* Set the barrier to be more recent than this fattr */ +@@ -1829,7 +1853,7 @@ static int nfs_update_inode(struct inode + } + + /* Don't declare attrcache up to date if there were no attrs! */ +- if (fattr->valid != 0) ++ if (cache_revalidated) + invalid &= ~NFS_INO_INVALID_ATTR; + + /* Don't invalidate the data if we were to blame */ +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/nfs4proc.c linux-libre-4.4.7-gnu/fs/nfs/nfs4proc.c +--- linux-libre-4.4-gnu/fs/nfs/nfs4proc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/nfs/nfs4proc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1385,6 +1385,7 @@ static void __update_open_stateid(struct + * Protect the call to nfs4_state_set_mode_locked and + * serialise the stateid update + */ ++ spin_lock(&state->owner->so_lock); + write_seqlock(&state->seqlock); + if (deleg_stateid != NULL) { + nfs4_stateid_copy(&state->stateid, deleg_stateid); +@@ -1393,7 +1394,6 @@ static void __update_open_stateid(struct + if (open_stateid != NULL) + nfs_set_open_stateid_locked(state, open_stateid, fmode); + write_sequnlock(&state->seqlock); +- spin_lock(&state->owner->so_lock); + update_open_stateflags(state, fmode); + spin_unlock(&state->owner->so_lock); + } +@@ -2461,9 +2461,9 @@ static int _nfs4_open_and_get_state(stru + dentry = d_add_unique(dentry, igrab(state->inode)); + if (dentry == NULL) { + dentry = opendata->dentry; +- } else if (dentry != ctx->dentry) { ++ } else { + dput(ctx->dentry); +- ctx->dentry = dget(dentry); ++ ctx->dentry = dentry; + } + nfs_set_verifier(dentry, + nfs_save_change_attribute(d_inode(opendata->dir))); +@@ -8054,7 +8054,6 @@ static void nfs4_layoutreturn_release(vo + pnfs_set_layout_stateid(lo, &lrp->res.stateid, true); + pnfs_mark_matching_lsegs_invalid(lo, &freeme, &lrp->args.range); + pnfs_clear_layoutreturn_waitbit(lo); +- lo->plh_block_lgets--; + spin_unlock(&lo->plh_inode->i_lock); + pnfs_free_lseg_list(&freeme); + pnfs_put_layout_hdr(lrp->args.layout); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/nfs4proc.c linux-libre-4.4.7-gnu/fs/nfsd/nfs4proc.c +--- linux-libre-4.4-gnu/fs/nfsd/nfs4proc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/nfsd/nfs4proc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -877,6 +877,7 @@ nfsd4_secinfo(struct svc_rqst *rqstp, st + &exp, &dentry); + if (err) + return err; ++ fh_unlock(&cstate->current_fh); + if (d_really_is_negative(dentry)) { + exp_put(exp); + err = nfserr_noent; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/nfs4xdr.c linux-libre-4.4.7-gnu/fs/nfsd/nfs4xdr.c +--- linux-libre-4.4-gnu/fs/nfsd/nfs4xdr.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/nfsd/nfs4xdr.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1072,8 +1072,9 @@ nfsd4_decode_rename(struct nfsd4_compoun + + READ_BUF(4); + rename->rn_snamelen = be32_to_cpup(p++); +- READ_BUF(rename->rn_snamelen + 4); ++ READ_BUF(rename->rn_snamelen); + SAVEMEM(rename->rn_sname, rename->rn_snamelen); ++ READ_BUF(4); + rename->rn_tnamelen = be32_to_cpup(p++); + READ_BUF(rename->rn_tnamelen); + SAVEMEM(rename->rn_tname, rename->rn_tnamelen); +@@ -1155,13 +1156,14 @@ nfsd4_decode_setclientid(struct nfsd4_co + READ_BUF(8); + setclientid->se_callback_prog = be32_to_cpup(p++); + setclientid->se_callback_netid_len = be32_to_cpup(p++); +- +- READ_BUF(setclientid->se_callback_netid_len + 4); ++ READ_BUF(setclientid->se_callback_netid_len); + SAVEMEM(setclientid->se_callback_netid_val, setclientid->se_callback_netid_len); ++ READ_BUF(4); + setclientid->se_callback_addr_len = be32_to_cpup(p++); + +- READ_BUF(setclientid->se_callback_addr_len + 4); ++ READ_BUF(setclientid->se_callback_addr_len); + SAVEMEM(setclientid->se_callback_addr_val, setclientid->se_callback_addr_len); ++ READ_BUF(4); + setclientid->se_callback_ident = be32_to_cpup(p++); + + DECODE_TAIL; +@@ -1815,8 +1817,9 @@ nfsd4_decode_compound(struct nfsd4_compo + + READ_BUF(4); + argp->taglen = be32_to_cpup(p++); +- READ_BUF(argp->taglen + 8); ++ READ_BUF(argp->taglen); + SAVEMEM(argp->tag, argp->taglen); ++ READ_BUF(8); + argp->minorversion = be32_to_cpup(p++); + argp->opcnt = be32_to_cpup(p++); + max_reply += 4 + (XDR_QUADLEN(argp->taglen) << 2); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/aops.c linux-libre-4.4.7-gnu/fs/ocfs2/aops.c +--- linux-libre-4.4-gnu/fs/ocfs2/aops.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/ocfs2/aops.c 2016-04-12 12:09:26.000000000 -0400 +@@ -956,6 +956,7 @@ clean_orphan: + tmp_ret = ocfs2_del_inode_from_orphan(osb, inode, di_bh, + update_isize, end); + if (tmp_ret < 0) { ++ ocfs2_inode_unlock(inode, 1); + ret = tmp_ret; + mlog_errno(ret); + brelse(di_bh); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/dlm/dlmconvert.c linux-libre-4.4.7-gnu/fs/ocfs2/dlm/dlmconvert.c +--- linux-libre-4.4-gnu/fs/ocfs2/dlm/dlmconvert.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/ocfs2/dlm/dlmconvert.c 2016-04-12 12:09:26.000000000 -0400 +@@ -262,6 +262,7 @@ enum dlm_status dlmconvert_remote(struct + struct dlm_lock *lock, int flags, int type) + { + enum dlm_status status; ++ u8 old_owner = res->owner; + + mlog(0, "type=%d, convert_type=%d, busy=%d\n", lock->ml.type, + lock->ml.convert_type, res->state & DLM_LOCK_RES_IN_PROGRESS); +@@ -287,6 +288,19 @@ enum dlm_status dlmconvert_remote(struct + status = DLM_DENIED; + goto bail; + } ++ ++ if (lock->ml.type == type && lock->ml.convert_type == LKM_IVMODE) { ++ mlog(0, "last convert request returned DLM_RECOVERING, but " ++ "owner has already queued and sent ast to me. res %.*s, " ++ "(cookie=%u:%llu, type=%d, conv=%d)\n", ++ res->lockname.len, res->lockname.name, ++ dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)), ++ dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie)), ++ lock->ml.type, lock->ml.convert_type); ++ status = DLM_NORMAL; ++ goto bail; ++ } ++ + res->state |= DLM_LOCK_RES_IN_PROGRESS; + /* move lock to local convert queue */ + /* do not alter lock refcount. switching lists. */ +@@ -316,11 +330,19 @@ enum dlm_status dlmconvert_remote(struct + spin_lock(&res->spinlock); + res->state &= ~DLM_LOCK_RES_IN_PROGRESS; + lock->convert_pending = 0; +- /* if it failed, move it back to granted queue */ ++ /* if it failed, move it back to granted queue. ++ * if master returns DLM_NORMAL and then down before sending ast, ++ * it may have already been moved to granted queue, reset to ++ * DLM_RECOVERING and retry convert */ + if (status != DLM_NORMAL) { + if (status != DLM_NOTQUEUED) + dlm_error(status); + dlm_revert_pending_convert(res, lock); ++ } else if ((res->state & DLM_LOCK_RES_RECOVERING) || ++ (old_owner != res->owner)) { ++ mlog(0, "res %.*s is in recovering or has been recovered.\n", ++ res->lockname.len, res->lockname.name); ++ status = DLM_RECOVERING; + } + bail: + spin_unlock(&res->spinlock); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/dlm/dlmmaster.c linux-libre-4.4.7-gnu/fs/ocfs2/dlm/dlmmaster.c +--- linux-libre-4.4-gnu/fs/ocfs2/dlm/dlmmaster.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/ocfs2/dlm/dlmmaster.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2519,6 +2519,11 @@ static int dlm_migrate_lockres(struct dl + spin_lock(&dlm->master_lock); + ret = dlm_add_migration_mle(dlm, res, mle, &oldmle, name, + namelen, target, dlm->node_num); ++ /* get an extra reference on the mle. ++ * otherwise the assert_master from the new ++ * master will destroy this. ++ */ ++ dlm_get_mle_inuse(mle); + spin_unlock(&dlm->master_lock); + spin_unlock(&dlm->spinlock); + +@@ -2554,6 +2559,7 @@ fail: + if (mle_added) { + dlm_mle_detach_hb_events(dlm, mle); + dlm_put_mle(mle); ++ dlm_put_mle_inuse(mle); + } else if (mle) { + kmem_cache_free(dlm_mle_cache, mle); + mle = NULL; +@@ -2571,17 +2577,6 @@ fail: + * ensure that all assert_master work is flushed. */ + flush_workqueue(dlm->dlm_worker); + +- /* get an extra reference on the mle. +- * otherwise the assert_master from the new +- * master will destroy this. +- * also, make sure that all callers of dlm_get_mle +- * take both dlm->spinlock and dlm->master_lock */ +- spin_lock(&dlm->spinlock); +- spin_lock(&dlm->master_lock); +- dlm_get_mle_inuse(mle); +- spin_unlock(&dlm->master_lock); +- spin_unlock(&dlm->spinlock); +- + /* notify new node and send all lock state */ + /* call send_one_lockres with migration flag. + * this serves as notice to the target node that a +@@ -3312,6 +3307,15 @@ top: + mle->new_master != dead_node) + continue; + ++ if (mle->new_master == dead_node && mle->inuse) { ++ mlog(ML_NOTICE, "%s: target %u died during " ++ "migration from %u, the MLE is " ++ "still keep used, ignore it!\n", ++ dlm->name, dead_node, ++ mle->master); ++ continue; ++ } ++ + /* If we have reached this point, this mle needs to be + * removed from the list and freed. */ + dlm_clean_migration_mle(dlm, mle); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/dlm/dlmrecovery.c linux-libre-4.4.7-gnu/fs/ocfs2/dlm/dlmrecovery.c +--- linux-libre-4.4-gnu/fs/ocfs2/dlm/dlmrecovery.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/ocfs2/dlm/dlmrecovery.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2064,7 +2064,6 @@ void dlm_move_lockres_to_recovery_list(s + dlm_lock_get(lock); + if (lock->convert_pending) { + /* move converting lock back to granted */ +- BUG_ON(i != DLM_CONVERTING_LIST); + mlog(0, "node died with convert pending " + "on %.*s. move back to granted list.\n", + res->lockname.len, res->lockname.name); +@@ -2360,6 +2359,8 @@ static void dlm_do_local_recovery_cleanu + break; + } + } ++ dlm_lockres_clear_refmap_bit(dlm, res, ++ dead_node); + spin_unlock(&res->spinlock); + continue; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/dlmglue.c linux-libre-4.4.7-gnu/fs/ocfs2/dlmglue.c +--- linux-libre-4.4-gnu/fs/ocfs2/dlmglue.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/ocfs2/dlmglue.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1390,6 +1390,7 @@ static int __ocfs2_cluster_lock(struct o + unsigned int gen; + int noqueue_attempted = 0; + int dlm_locked = 0; ++ int kick_dc = 0; + + if (!(lockres->l_flags & OCFS2_LOCK_INITIALIZED)) { + mlog_errno(-EINVAL); +@@ -1524,7 +1525,12 @@ update_holders: + unlock: + lockres_clear_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING); + ++ /* ocfs2_unblock_lock reques on seeing OCFS2_LOCK_UPCONVERT_FINISHING */ ++ kick_dc = (lockres->l_flags & OCFS2_LOCK_BLOCKED); ++ + spin_unlock_irqrestore(&lockres->l_lock, flags); ++ if (kick_dc) ++ ocfs2_wake_downconvert_thread(osb); + out: + /* + * This is helping work around a lock inversion between the page lock +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/open.c linux-libre-4.4.7-gnu/fs/open.c +--- linux-libre-4.4-gnu/fs/open.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/open.c 2016-04-12 12:09:26.000000000 -0400 +@@ -995,14 +995,12 @@ struct file *filp_open(const char *filen + EXPORT_SYMBOL(filp_open); + + struct file *file_open_root(struct dentry *dentry, struct vfsmount *mnt, +- const char *filename, int flags) ++ const char *filename, int flags, umode_t mode) + { + struct open_flags op; +- int err = build_open_flags(flags, 0, &op); ++ int err = build_open_flags(flags, mode, &op); + if (err) + return ERR_PTR(err); +- if (flags & O_CREAT) +- return ERR_PTR(-EINVAL); + return do_file_open_root(dentry, mnt, filename, &op); + } + EXPORT_SYMBOL(file_open_root); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/overlayfs/copy_up.c linux-libre-4.4.7-gnu/fs/overlayfs/copy_up.c +--- linux-libre-4.4-gnu/fs/overlayfs/copy_up.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/overlayfs/copy_up.c 2016-04-12 12:09:26.000000000 -0400 +@@ -22,9 +22,9 @@ + + int ovl_copy_xattr(struct dentry *old, struct dentry *new) + { +- ssize_t list_size, size; +- char *buf, *name, *value; +- int error; ++ ssize_t list_size, size, value_size = 0; ++ char *buf, *name, *value = NULL; ++ int uninitialized_var(error); + + if (!old->d_inode->i_op->getxattr || + !new->d_inode->i_op->getxattr) +@@ -41,29 +41,40 @@ int ovl_copy_xattr(struct dentry *old, s + if (!buf) + return -ENOMEM; + +- error = -ENOMEM; +- value = kmalloc(XATTR_SIZE_MAX, GFP_KERNEL); +- if (!value) +- goto out; +- + list_size = vfs_listxattr(old, buf, list_size); + if (list_size <= 0) { + error = list_size; +- goto out_free_value; ++ goto out; + } + + for (name = buf; name < (buf + list_size); name += strlen(name) + 1) { +- size = vfs_getxattr(old, name, value, XATTR_SIZE_MAX); +- if (size <= 0) { ++retry: ++ size = vfs_getxattr(old, name, value, value_size); ++ if (size == -ERANGE) ++ size = vfs_getxattr(old, name, NULL, 0); ++ ++ if (size < 0) { + error = size; +- goto out_free_value; ++ break; ++ } ++ ++ if (size > value_size) { ++ void *new; ++ ++ new = krealloc(value, size, GFP_KERNEL); ++ if (!new) { ++ error = -ENOMEM; ++ break; ++ } ++ value = new; ++ value_size = size; ++ goto retry; + } ++ + error = vfs_setxattr(new, name, value, size, 0); + if (error) +- goto out_free_value; ++ break; + } +- +-out_free_value: + kfree(value); + out: + kfree(buf); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/overlayfs/dir.c linux-libre-4.4.7-gnu/fs/overlayfs/dir.c +--- linux-libre-4.4-gnu/fs/overlayfs/dir.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/overlayfs/dir.c 2016-04-12 12:09:26.000000000 -0400 +@@ -618,7 +618,8 @@ static int ovl_remove_upper(struct dentr + * sole user of this dentry. Too tricky... Just unhash for + * now. + */ +- d_drop(dentry); ++ if (!err) ++ d_drop(dentry); + mutex_unlock(&dir->i_mutex); + + return err; +@@ -903,6 +904,13 @@ static int ovl_rename2(struct inode *old + if (!overwrite && new_is_dir && !old_opaque && new_opaque) + ovl_remove_opaque(newdentry); + ++ /* ++ * Old dentry now lives in different location. Dentries in ++ * lowerstack are stale. We cannot drop them here because ++ * access to them is lockless. This could be only pure upper ++ * or opaque directory - numlower is zero. Or upper non-dir ++ * entry - its pureness is tracked by flag opaque. ++ */ + if (old_opaque != new_opaque) { + ovl_dentry_set_opaque(old, new_opaque); + if (!overwrite) +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/overlayfs/inode.c linux-libre-4.4.7-gnu/fs/overlayfs/inode.c +--- linux-libre-4.4-gnu/fs/overlayfs/inode.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/overlayfs/inode.c 2016-04-12 12:09:26.000000000 -0400 +@@ -42,6 +42,19 @@ int ovl_setattr(struct dentry *dentry, s + int err; + struct dentry *upperdentry; + ++ /* ++ * Check for permissions before trying to copy-up. This is redundant ++ * since it will be rechecked later by ->setattr() on upper dentry. But ++ * without this, copy-up can be triggered by just about anybody. ++ * ++ * We don't initialize inode->size, which just means that ++ * inode_newsize_ok() will always check against MAX_LFS_FILESIZE and not ++ * check for a swapfile (which this won't be anyway). ++ */ ++ err = inode_change_ok(dentry->d_inode, attr); ++ if (err) ++ return err; ++ + err = ovl_want_write(dentry); + if (err) + goto out; +@@ -52,6 +65,8 @@ int ovl_setattr(struct dentry *dentry, s + + mutex_lock(&upperdentry->d_inode->i_mutex); + err = notify_change(upperdentry, attr, NULL); ++ if (!err) ++ ovl_copyattr(upperdentry->d_inode, dentry->d_inode); + mutex_unlock(&upperdentry->d_inode->i_mutex); + } + ovl_drop_write(dentry); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/overlayfs/readdir.c linux-libre-4.4.7-gnu/fs/overlayfs/readdir.c +--- linux-libre-4.4-gnu/fs/overlayfs/readdir.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/overlayfs/readdir.c 2016-04-12 12:09:26.000000000 -0400 +@@ -571,7 +571,8 @@ void ovl_cleanup_whiteouts(struct dentry + (int) PTR_ERR(dentry)); + continue; + } +- ovl_cleanup(upper->d_inode, dentry); ++ if (dentry->d_inode) ++ ovl_cleanup(upper->d_inode, dentry); + dput(dentry); + } + mutex_unlock(&upper->d_inode->i_mutex); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/overlayfs/super.c linux-libre-4.4.7-gnu/fs/overlayfs/super.c +--- linux-libre-4.4-gnu/fs/overlayfs/super.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/overlayfs/super.c 2016-04-12 12:09:26.000000000 -0400 +@@ -9,6 +9,7 @@ + + #include <linux/fs.h> + #include <linux/namei.h> ++#include <linux/pagemap.h> + #include <linux/xattr.h> + #include <linux/security.h> + #include <linux/mount.h> +@@ -75,12 +76,14 @@ enum ovl_path_type ovl_path_type(struct + if (oe->__upperdentry) { + type = __OVL_PATH_UPPER; + +- if (oe->numlower) { +- if (S_ISDIR(dentry->d_inode->i_mode)) +- type |= __OVL_PATH_MERGE; +- } else if (!oe->opaque) { ++ /* ++ * Non-dir dentry can hold lower dentry from previous ++ * location. Its purity depends only on opaque flag. ++ */ ++ if (oe->numlower && S_ISDIR(dentry->d_inode->i_mode)) ++ type |= __OVL_PATH_MERGE; ++ else if (!oe->opaque) + type |= __OVL_PATH_PURE; +- } + } else { + if (oe->numlower > 1) + type |= __OVL_PATH_MERGE; +@@ -321,6 +324,7 @@ static const struct dentry_operations ov + + static const struct dentry_operations ovl_reval_dentry_operations = { + .d_release = ovl_dentry_release, ++ .d_select_inode = ovl_d_select_inode, + .d_revalidate = ovl_dentry_revalidate, + .d_weak_revalidate = ovl_dentry_weak_revalidate, + }; +@@ -910,6 +914,7 @@ static int ovl_fill_super(struct super_b + } + + sb->s_stack_depth = 0; ++ sb->s_maxbytes = MAX_LFS_FILESIZE; + if (ufs->config.upperdir) { + if (!ufs->config.workdir) { + pr_err("overlayfs: missing 'workdir'\n"); +@@ -1053,6 +1058,9 @@ static int ovl_fill_super(struct super_b + + root_dentry->d_fsdata = oe; + ++ ovl_copyattr(ovl_dentry_real(root_dentry)->d_inode, ++ root_dentry->d_inode); ++ + sb->s_magic = OVERLAYFS_SUPER_MAGIC; + sb->s_op = &ovl_super_operations; + sb->s_root = root_dentry; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc/array.c linux-libre-4.4.7-gnu/fs/proc/array.c +--- linux-libre-4.4-gnu/fs/proc/array.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/proc/array.c 2016-04-12 12:09:26.000000000 -0400 +@@ -395,7 +395,7 @@ static int do_task_stat(struct seq_file + + state = *get_task_state(task); + vsize = eip = esp = 0; +- permitted = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT); ++ permitted = ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS | PTRACE_MODE_NOAUDIT); + mm = get_task_mm(task); + if (mm) { + vsize = task_vsize(mm); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc/base.c linux-libre-4.4.7-gnu/fs/proc/base.c +--- linux-libre-4.4-gnu/fs/proc/base.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/proc/base.c 2016-04-12 12:09:26.000000000 -0400 +@@ -403,7 +403,7 @@ static const struct file_operations proc + static int proc_pid_auxv(struct seq_file *m, struct pid_namespace *ns, + struct pid *pid, struct task_struct *task) + { +- struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ); ++ struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ_FSCREDS); + if (mm && !IS_ERR(mm)) { + unsigned int nwords = 0; + do { +@@ -430,7 +430,8 @@ static int proc_pid_wchan(struct seq_fil + + wchan = get_wchan(task); + +- if (wchan && ptrace_may_access(task, PTRACE_MODE_READ) && !lookup_symbol_name(wchan, symname)) ++ if (wchan && ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS) ++ && !lookup_symbol_name(wchan, symname)) + seq_printf(m, "%s", symname); + else + seq_putc(m, '0'); +@@ -444,7 +445,7 @@ static int lock_trace(struct task_struct + int err = mutex_lock_killable(&task->signal->cred_guard_mutex); + if (err) + return err; +- if (!ptrace_may_access(task, PTRACE_MODE_ATTACH)) { ++ if (!ptrace_may_access(task, PTRACE_MODE_ATTACH_FSCREDS)) { + mutex_unlock(&task->signal->cred_guard_mutex); + return -EPERM; + } +@@ -697,7 +698,7 @@ static int proc_fd_access_allowed(struct + */ + task = get_proc_task(inode); + if (task) { +- allowed = ptrace_may_access(task, PTRACE_MODE_READ); ++ allowed = ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS); + put_task_struct(task); + } + return allowed; +@@ -732,7 +733,7 @@ static bool has_pid_permissions(struct p + return true; + if (in_group_p(pid->pid_gid)) + return true; +- return ptrace_may_access(task, PTRACE_MODE_READ); ++ return ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS); + } + + +@@ -809,7 +810,7 @@ struct mm_struct *proc_mem_open(struct i + struct mm_struct *mm = ERR_PTR(-ESRCH); + + if (task) { +- mm = mm_access(task, mode); ++ mm = mm_access(task, mode | PTRACE_MODE_FSCREDS); + put_task_struct(task); + + if (!IS_ERR_OR_NULL(mm)) { +@@ -1856,7 +1857,7 @@ static int map_files_d_revalidate(struct + if (!task) + goto out_notask; + +- mm = mm_access(task, PTRACE_MODE_READ); ++ mm = mm_access(task, PTRACE_MODE_READ_FSCREDS); + if (IS_ERR_OR_NULL(mm)) + goto out; + +@@ -2007,7 +2008,7 @@ static struct dentry *proc_map_files_loo + goto out; + + result = -EACCES; +- if (!ptrace_may_access(task, PTRACE_MODE_READ)) ++ if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) + goto out_put_task; + + result = -ENOENT; +@@ -2060,7 +2061,7 @@ proc_map_files_readdir(struct file *file + goto out; + + ret = -EACCES; +- if (!ptrace_may_access(task, PTRACE_MODE_READ)) ++ if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) + goto out_put_task; + + ret = 0; +@@ -2530,7 +2531,7 @@ static int do_io_accounting(struct task_ + if (result) + return result; + +- if (!ptrace_may_access(task, PTRACE_MODE_READ)) { ++ if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) { + result = -EACCES; + goto out_unlock; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc/namespaces.c linux-libre-4.4.7-gnu/fs/proc/namespaces.c +--- linux-libre-4.4-gnu/fs/proc/namespaces.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/proc/namespaces.c 2016-04-12 12:09:26.000000000 -0400 +@@ -42,7 +42,7 @@ static const char *proc_ns_follow_link(s + if (!task) + return error; + +- if (ptrace_may_access(task, PTRACE_MODE_READ)) { ++ if (ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) { + error = ns_get_path(&ns_path, task, ns_ops); + if (!error) + nd_jump_link(&ns_path); +@@ -63,7 +63,7 @@ static int proc_ns_readlink(struct dentr + if (!task) + return res; + +- if (ptrace_may_access(task, PTRACE_MODE_READ)) { ++ if (ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) { + res = ns_get_name(name, sizeof(name), task, ns_ops); + if (res >= 0) + res = readlink_copy(buffer, buflen, name); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc/task_mmu.c linux-libre-4.4.7-gnu/fs/proc/task_mmu.c +--- linux-libre-4.4-gnu/fs/proc/task_mmu.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/proc/task_mmu.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1473,18 +1473,19 @@ static int gather_pte_stats(pmd_t *pmd, + static int gather_hugetlb_stats(pte_t *pte, unsigned long hmask, + unsigned long addr, unsigned long end, struct mm_walk *walk) + { ++ pte_t huge_pte = huge_ptep_get(pte); + struct numa_maps *md; + struct page *page; + +- if (!pte_present(*pte)) ++ if (!pte_present(huge_pte)) + return 0; + +- page = pte_page(*pte); ++ page = pte_page(huge_pte); + if (!page) + return 0; + + md = walk->private; +- gather_stats(page, md, pte_dirty(*pte), 1); ++ gather_stats(page, md, pte_dirty(huge_pte), 1); + return 0; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc_namespace.c linux-libre-4.4.7-gnu/fs/proc_namespace.c +--- linux-libre-4.4-gnu/fs/proc_namespace.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/proc_namespace.c 2016-04-12 12:09:26.000000000 -0400 +@@ -197,6 +197,8 @@ static int show_vfsstat(struct seq_file + if (sb->s_op->show_devname) { + seq_puts(m, "device "); + err = sb->s_op->show_devname(m, mnt_path.dentry); ++ if (err) ++ goto out; + } else { + if (r->mnt_devname) { + seq_puts(m, "device "); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/quota/dquot.c linux-libre-4.4.7-gnu/fs/quota/dquot.c +--- linux-libre-4.4-gnu/fs/quota/dquot.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/quota/dquot.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1398,7 +1398,7 @@ static int dquot_active(const struct ino + static int __dquot_initialize(struct inode *inode, int type) + { + int cnt, init_needed = 0; +- struct dquot **dquots, *got[MAXQUOTAS]; ++ struct dquot **dquots, *got[MAXQUOTAS] = {}; + struct super_block *sb = inode->i_sb; + qsize_t rsv; + int ret = 0; +@@ -1415,7 +1415,6 @@ static int __dquot_initialize(struct ino + int rc; + struct dquot *dquot; + +- got[cnt] = NULL; + if (type != -1 && cnt != type) + continue; + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/splice.c linux-libre-4.4.7-gnu/fs/splice.c +--- linux-libre-4.4-gnu/fs/splice.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/splice.c 2016-04-12 12:09:26.000000000 -0400 +@@ -185,6 +185,9 @@ ssize_t splice_to_pipe(struct pipe_inode + unsigned int spd_pages = spd->nr_pages; + int ret, do_wakeup, page_nr; + ++ if (!spd_pages) ++ return 0; ++ + ret = 0; + do_wakeup = 0; + page_nr = 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/super.c linux-libre-4.4.7-gnu/fs/super.c +--- linux-libre-4.4-gnu/fs/super.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/super.c 2016-04-12 12:09:26.000000000 -0400 +@@ -415,6 +415,7 @@ void generic_shutdown_super(struct super + sb->s_flags &= ~MS_ACTIVE; + + fsnotify_unmount_inodes(sb); ++ cgroup_writeback_umount(); + + evict_inodes(sb); + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/timerfd.c linux-libre-4.4.7-gnu/fs/timerfd.c +--- linux-libre-4.4-gnu/fs/timerfd.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/timerfd.c 2016-04-12 12:09:26.000000000 -0400 +@@ -153,7 +153,7 @@ static ktime_t timerfd_get_remaining(str + if (isalarm(ctx)) + remaining = alarm_expires_remaining(&ctx->t.alarm); + else +- remaining = hrtimer_expires_remaining(&ctx->t.tmr); ++ remaining = hrtimer_expires_remaining_adjusted(&ctx->t.tmr); + + return remaining.tv64 < 0 ? ktime_set(0, 0): remaining; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/udf/inode.c linux-libre-4.4.7-gnu/fs/udf/inode.c +--- linux-libre-4.4-gnu/fs/udf/inode.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/udf/inode.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2047,14 +2047,29 @@ void udf_write_aext(struct inode *inode, + epos->offset += adsize; + } + ++/* ++ * Only 1 indirect extent in a row really makes sense but allow upto 16 in case ++ * someone does some weird stuff. ++ */ ++#define UDF_MAX_INDIR_EXTS 16 ++ + int8_t udf_next_aext(struct inode *inode, struct extent_position *epos, + struct kernel_lb_addr *eloc, uint32_t *elen, int inc) + { + int8_t etype; ++ unsigned int indirections = 0; + + while ((etype = udf_current_aext(inode, epos, eloc, elen, inc)) == + (EXT_NEXT_EXTENT_ALLOCDECS >> 30)) { + int block; ++ ++ if (++indirections > UDF_MAX_INDIR_EXTS) { ++ udf_err(inode->i_sb, ++ "too many indirect extents in inode %lu\n", ++ inode->i_ino); ++ return -1; ++ } ++ + epos->block = *eloc; + epos->offset = sizeof(struct allocExtDesc); + brelse(epos->bh); +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/udf/unicode.c linux-libre-4.4.7-gnu/fs/udf/unicode.c +--- linux-libre-4.4-gnu/fs/udf/unicode.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/udf/unicode.c 2016-04-12 12:09:26.000000000 -0400 +@@ -128,11 +128,15 @@ int udf_CS0toUTF8(struct ustr *utf_o, co + if (c < 0x80U) + utf_o->u_name[utf_o->u_len++] = (uint8_t)c; + else if (c < 0x800U) { ++ if (utf_o->u_len > (UDF_NAME_LEN - 4)) ++ break; + utf_o->u_name[utf_o->u_len++] = + (uint8_t)(0xc0 | (c >> 6)); + utf_o->u_name[utf_o->u_len++] = + (uint8_t)(0x80 | (c & 0x3f)); + } else { ++ if (utf_o->u_len > (UDF_NAME_LEN - 5)) ++ break; + utf_o->u_name[utf_o->u_len++] = + (uint8_t)(0xe0 | (c >> 12)); + utf_o->u_name[utf_o->u_len++] = +@@ -173,17 +177,22 @@ int udf_CS0toUTF8(struct ustr *utf_o, co + static int udf_UTF8toCS0(dstring *ocu, struct ustr *utf, int length) + { + unsigned c, i, max_val, utf_char; +- int utf_cnt, u_len; ++ int utf_cnt, u_len, u_ch; + + memset(ocu, 0, sizeof(dstring) * length); + ocu[0] = 8; + max_val = 0xffU; ++ u_ch = 1; + + try_again: + u_len = 0U; + utf_char = 0U; + utf_cnt = 0U; + for (i = 0U; i < utf->u_len; i++) { ++ /* Name didn't fit? */ ++ if (u_len + 1 + u_ch >= length) ++ return 0; ++ + c = (uint8_t)utf->u_name[i]; + + /* Complete a multi-byte UTF-8 character */ +@@ -225,6 +234,7 @@ try_again: + if (max_val == 0xffU) { + max_val = 0xffffU; + ocu[0] = (uint8_t)0x10U; ++ u_ch = 2; + goto try_again; + } + goto error_out; +@@ -277,7 +287,7 @@ static int udf_CS0toNLS(struct nls_table + c = (c << 8) | ocu[i++]; + + len = nls->uni2char(c, &utf_o->u_name[utf_o->u_len], +- UDF_NAME_LEN - utf_o->u_len); ++ UDF_NAME_LEN - 2 - utf_o->u_len); + /* Valid character? */ + if (len >= 0) + utf_o->u_len += len; +@@ -295,15 +305,19 @@ static int udf_NLStoCS0(struct nls_table + int len; + unsigned i, max_val; + uint16_t uni_char; +- int u_len; ++ int u_len, u_ch; + + memset(ocu, 0, sizeof(dstring) * length); + ocu[0] = 8; + max_val = 0xffU; ++ u_ch = 1; + + try_again: + u_len = 0U; + for (i = 0U; i < uni->u_len; i++) { ++ /* Name didn't fit? */ ++ if (u_len + 1 + u_ch >= length) ++ return 0; + len = nls->char2uni(&uni->u_name[i], uni->u_len - i, &uni_char); + if (!len) + continue; +@@ -316,6 +330,7 @@ try_again: + if (uni_char > max_val) { + max_val = 0xffffU; + ocu[0] = (uint8_t)0x10U; ++ u_ch = 2; + goto try_again; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/userfaultfd.c linux-libre-4.4.7-gnu/fs/userfaultfd.c +--- linux-libre-4.4-gnu/fs/userfaultfd.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/userfaultfd.c 2016-04-12 12:09:26.000000000 -0400 +@@ -287,6 +287,12 @@ int handle_userfault(struct vm_area_stru + goto out; + + /* ++ * We don't do userfault handling for the final child pid update. ++ */ ++ if (current->flags & PF_EXITING) ++ goto out; ++ ++ /* + * Check that we can return VM_FAULT_RETRY. + * + * NOTE: it should become possible to return VM_FAULT_RETRY +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_format.h linux-libre-4.4.7-gnu/fs/xfs/libxfs/xfs_format.h +--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_format.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/xfs/libxfs/xfs_format.h 2016-04-12 12:09:26.000000000 -0400 +@@ -786,7 +786,7 @@ typedef struct xfs_agfl { + __be64 agfl_lsn; + __be32 agfl_crc; + __be32 agfl_bno[]; /* actually XFS_AGFL_SIZE(mp) */ +-} xfs_agfl_t; ++} __attribute__((packed)) xfs_agfl_t; + + #define XFS_AGFL_CRC_OFF offsetof(struct xfs_agfl, agfl_crc) + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_inode_buf.c linux-libre-4.4.7-gnu/fs/xfs/libxfs/xfs_inode_buf.c +--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_inode_buf.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/xfs/libxfs/xfs_inode_buf.c 2016-04-12 12:09:26.000000000 -0400 +@@ -62,11 +62,12 @@ xfs_inobp_check( + * has not had the inode cores stamped into it. Hence for readahead, the buffer + * may be potentially invalid. + * +- * If the readahead buffer is invalid, we don't want to mark it with an error, +- * but we do want to clear the DONE status of the buffer so that a followup read +- * will re-read it from disk. This will ensure that we don't get an unnecessary +- * warnings during log recovery and we don't get unnecssary panics on debug +- * kernels. ++ * If the readahead buffer is invalid, we need to mark it with an error and ++ * clear the DONE status of the buffer so that a followup read will re-read it ++ * from disk. We don't report the error otherwise to avoid warnings during log ++ * recovery and we don't get unnecssary panics on debug kernels. We use EIO here ++ * because all we want to do is say readahead failed; there is no-one to report ++ * the error to, so this will distinguish it from a non-ra verifier failure. + */ + static void + xfs_inode_buf_verify( +@@ -93,6 +94,7 @@ xfs_inode_buf_verify( + XFS_RANDOM_ITOBP_INOTOBP))) { + if (readahead) { + bp->b_flags &= ~XBF_DONE; ++ xfs_buf_ioerror(bp, -EIO); + return; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_attr_list.c linux-libre-4.4.7-gnu/fs/xfs/xfs_attr_list.c +--- linux-libre-4.4-gnu/fs/xfs/xfs_attr_list.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/xfs/xfs_attr_list.c 2016-04-12 12:09:26.000000000 -0400 +@@ -202,8 +202,10 @@ xfs_attr_shortform_list(xfs_attr_list_co + sbp->namelen, + sbp->valuelen, + &sbp->name[sbp->namelen]); +- if (error) ++ if (error) { ++ kmem_free(sbuf); + return error; ++ } + if (context->seen_enough) + break; + cursor->offset++; +@@ -454,14 +456,13 @@ xfs_attr3_leaf_list_int( + args.rmtblkcnt = xfs_attr3_rmt_blocks( + args.dp->i_mount, valuelen); + retval = xfs_attr_rmtval_get(&args); +- if (retval) +- return retval; +- retval = context->put_listent(context, +- entry->flags, +- name_rmt->name, +- (int)name_rmt->namelen, +- valuelen, +- args.value); ++ if (!retval) ++ retval = context->put_listent(context, ++ entry->flags, ++ name_rmt->name, ++ (int)name_rmt->namelen, ++ valuelen, ++ args.value); + kmem_free(args.value); + } else { + retval = context->put_listent(context, +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_buf.c linux-libre-4.4.7-gnu/fs/xfs/xfs_buf.c +--- linux-libre-4.4-gnu/fs/xfs/xfs_buf.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/xfs/xfs_buf.c 2016-04-12 12:09:26.000000000 -0400 +@@ -604,6 +604,13 @@ found: + } + } + ++ /* ++ * Clear b_error if this is a lookup from a caller that doesn't expect ++ * valid data to be found in the buffer. ++ */ ++ if (!(flags & XBF_READ)) ++ xfs_buf_ioerror(bp, 0); ++ + XFS_STATS_INC(target->bt_mount, xb_get); + trace_xfs_buf_get(bp, flags, _RET_IP_); + return bp; +@@ -1520,6 +1527,16 @@ xfs_wait_buftarg( + LIST_HEAD(dispose); + int loop = 0; + ++ /* ++ * We need to flush the buffer workqueue to ensure that all IO ++ * completion processing is 100% done. Just waiting on buffer locks is ++ * not sufficient for async IO as the reference count held over IO is ++ * not released until after the buffer lock is dropped. Hence we need to ++ * ensure here that all reference counts have been dropped before we ++ * start walking the LRU list. ++ */ ++ drain_workqueue(btp->bt_mount->m_buf_workqueue); ++ + /* loop until there is nothing left on the lru list. */ + while (list_lru_count(&btp->bt_lru)) { + list_lru_walk(&btp->bt_lru, xfs_buftarg_wait_rele, +diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_trans_ail.c linux-libre-4.4.7-gnu/fs/xfs/xfs_trans_ail.c +--- linux-libre-4.4-gnu/fs/xfs/xfs_trans_ail.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/fs/xfs/xfs_trans_ail.c 2016-04-12 12:09:26.000000000 -0400 +@@ -497,7 +497,6 @@ xfsaild( + long tout = 0; /* milliseconds */ + + current->flags |= PF_MEMALLOC; +- set_freezable(); + + while (!kthread_should_stop()) { + if (tout && tout <= 20) +diff -druNp --no-dereference linux-libre-4.4-gnu/include/asm-generic/bitops/lock.h linux-libre-4.4.7-gnu/include/asm-generic/bitops/lock.h +--- linux-libre-4.4-gnu/include/asm-generic/bitops/lock.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/asm-generic/bitops/lock.h 2016-04-12 12:09:26.000000000 -0400 +@@ -29,16 +29,16 @@ do { \ + * @nr: the bit to set + * @addr: the address to start counting from + * +- * This operation is like clear_bit_unlock, however it is not atomic. +- * It does provide release barrier semantics so it can be used to unlock +- * a bit lock, however it would only be used if no other CPU can modify +- * any bits in the memory until the lock is released (a good example is +- * if the bit lock itself protects access to the other bits in the word). ++ * A weaker form of clear_bit_unlock() as used by __bit_lock_unlock(). If all ++ * the bits in the word are protected by this lock some archs can use weaker ++ * ops to safely unlock. ++ * ++ * See for example x86's implementation. + */ + #define __clear_bit_unlock(nr, addr) \ + do { \ +- smp_mb(); \ +- __clear_bit(nr, addr); \ ++ smp_mb__before_atomic(); \ ++ clear_bit(nr, addr); \ + } while (0) + + #endif /* _ASM_GENERIC_BITOPS_LOCK_H_ */ +diff -druNp --no-dereference linux-libre-4.4-gnu/include/asm-generic/cputime_nsecs.h linux-libre-4.4.7-gnu/include/asm-generic/cputime_nsecs.h +--- linux-libre-4.4-gnu/include/asm-generic/cputime_nsecs.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/asm-generic/cputime_nsecs.h 2016-04-12 12:09:26.000000000 -0400 +@@ -75,7 +75,7 @@ typedef u64 __nocast cputime64_t; + */ + static inline cputime_t timespec_to_cputime(const struct timespec *val) + { +- u64 ret = val->tv_sec * NSEC_PER_SEC + val->tv_nsec; ++ u64 ret = (u64)val->tv_sec * NSEC_PER_SEC + val->tv_nsec; + return (__force cputime_t) ret; + } + static inline void cputime_to_timespec(const cputime_t ct, struct timespec *val) +@@ -91,7 +91,8 @@ static inline void cputime_to_timespec(c + */ + static inline cputime_t timeval_to_cputime(const struct timeval *val) + { +- u64 ret = val->tv_sec * NSEC_PER_SEC + val->tv_usec * NSEC_PER_USEC; ++ u64 ret = (u64)val->tv_sec * NSEC_PER_SEC + ++ val->tv_usec * NSEC_PER_USEC; + return (__force cputime_t) ret; + } + static inline void cputime_to_timeval(const cputime_t ct, struct timeval *val) +diff -druNp --no-dereference linux-libre-4.4-gnu/include/crypto/hash.h linux-libre-4.4.7-gnu/include/crypto/hash.h +--- linux-libre-4.4-gnu/include/crypto/hash.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/crypto/hash.h 2016-04-12 12:09:26.000000000 -0400 +@@ -204,6 +204,7 @@ struct crypto_ahash { + unsigned int keylen); + + unsigned int reqsize; ++ bool has_setkey; + struct crypto_tfm base; + }; + +@@ -375,6 +376,11 @@ static inline void *ahash_request_ctx(st + int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key, + unsigned int keylen); + ++static inline bool crypto_ahash_has_setkey(struct crypto_ahash *tfm) ++{ ++ return tfm->has_setkey; ++} ++ + /** + * crypto_ahash_finup() - update and finalize message digest + * @req: reference to the ahash_request handle that holds all information +diff -druNp --no-dereference linux-libre-4.4-gnu/include/crypto/if_alg.h linux-libre-4.4.7-gnu/include/crypto/if_alg.h +--- linux-libre-4.4-gnu/include/crypto/if_alg.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/crypto/if_alg.h 2016-04-12 12:09:26.000000000 -0400 +@@ -30,6 +30,9 @@ struct alg_sock { + + struct sock *parent; + ++ unsigned int refcnt; ++ unsigned int nokey_refcnt; ++ + const struct af_alg_type *type; + void *private; + }; +@@ -50,9 +53,11 @@ struct af_alg_type { + void (*release)(void *private); + int (*setkey)(void *private, const u8 *key, unsigned int keylen); + int (*accept)(void *private, struct sock *sk); ++ int (*accept_nokey)(void *private, struct sock *sk); + int (*setauthsize)(void *private, unsigned int authsize); + + struct proto_ops *ops; ++ struct proto_ops *ops_nokey; + struct module *owner; + char name[14]; + }; +@@ -67,6 +72,7 @@ int af_alg_register_type(const struct af + int af_alg_unregister_type(const struct af_alg_type *type); + + int af_alg_release(struct socket *sock); ++void af_alg_release_parent(struct sock *sk); + int af_alg_accept(struct sock *sk, struct socket *newsock); + + int af_alg_make_sg(struct af_alg_sgl *sgl, struct iov_iter *iter, int len); +@@ -83,11 +89,6 @@ static inline struct alg_sock *alg_sk(st + return (struct alg_sock *)sk; + } + +-static inline void af_alg_release_parent(struct sock *sk) +-{ +- sock_put(alg_sk(sk)->parent); +-} +- + static inline void af_alg_init_completion(struct af_alg_completion *completion) + { + init_completion(&completion->completion); +diff -druNp --no-dereference linux-libre-4.4-gnu/include/crypto/skcipher.h linux-libre-4.4.7-gnu/include/crypto/skcipher.h +--- linux-libre-4.4-gnu/include/crypto/skcipher.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/crypto/skcipher.h 2016-04-12 12:09:26.000000000 -0400 +@@ -61,6 +61,8 @@ struct crypto_skcipher { + unsigned int ivsize; + unsigned int reqsize; + ++ bool has_setkey; ++ + struct crypto_tfm base; + }; + +@@ -305,6 +307,11 @@ static inline int crypto_skcipher_setkey + return tfm->setkey(tfm, key, keylen); + } + ++static inline bool crypto_skcipher_has_setkey(struct crypto_skcipher *tfm) ++{ ++ return tfm->has_setkey; ++} ++ + /** + * crypto_skcipher_reqtfm() - obtain cipher handle from request + * @req: skcipher_request out of which the cipher handle is to be obtained +diff -druNp --no-dereference linux-libre-4.4-gnu/include/drm/drm_cache.h linux-libre-4.4.7-gnu/include/drm/drm_cache.h +--- linux-libre-4.4-gnu/include/drm/drm_cache.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/drm/drm_cache.h 2016-04-12 12:09:26.000000000 -0400 +@@ -35,4 +35,13 @@ + + void drm_clflush_pages(struct page *pages[], unsigned long num_pages); + ++static inline bool drm_arch_can_wc_memory(void) ++{ ++#if defined(CONFIG_PPC) && !defined(CONFIG_NOT_COHERENT_CACHE) ++ return false; ++#else ++ return true; ++#endif ++} ++ + #endif +diff -druNp --no-dereference linux-libre-4.4-gnu/include/drm/drm_dp_mst_helper.h linux-libre-4.4.7-gnu/include/drm/drm_dp_mst_helper.h +--- linux-libre-4.4-gnu/include/drm/drm_dp_mst_helper.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/drm/drm_dp_mst_helper.h 2016-04-12 12:09:26.000000000 -0400 +@@ -44,8 +44,6 @@ struct drm_dp_vcpi { + /** + * struct drm_dp_mst_port - MST port + * @kref: reference count for this port. +- * @guid_valid: for DP 1.2 devices if we have validated the GUID. +- * @guid: guid for DP 1.2 device on this port. + * @port_num: port number + * @input: if this port is an input port. + * @mcs: message capability status - DP 1.2 spec. +@@ -70,10 +68,6 @@ struct drm_dp_vcpi { + struct drm_dp_mst_port { + struct kref kref; + +- /* if dpcd 1.2 device is on this port - its GUID info */ +- bool guid_valid; +- u8 guid[16]; +- + u8 port_num; + bool input; + bool mcs; +@@ -109,10 +103,12 @@ struct drm_dp_mst_port { + * @tx_slots: transmission slots for this device. + * @last_seqno: last sequence number used to talk to this. + * @link_address_sent: if a link address message has been sent to this device yet. ++ * @guid: guid for DP 1.2 branch device. port under this branch can be ++ * identified by port #. + * + * This structure represents an MST branch device, there is one +- * primary branch device at the root, along with any others connected +- * to downstream ports ++ * primary branch device at the root, along with any other branches connected ++ * to downstream port of parent branches. + */ + struct drm_dp_mst_branch { + struct kref kref; +@@ -131,6 +127,9 @@ struct drm_dp_mst_branch { + struct drm_dp_sideband_msg_tx *tx_slots[2]; + int last_seqno; + bool link_address_sent; ++ ++ /* global unique identifier to identify branch devices */ ++ u8 guid[16]; + }; + + +@@ -405,11 +404,9 @@ struct drm_dp_payload { + * @conn_base_id: DRM connector ID this mgr is connected to. + * @down_rep_recv: msg receiver state for down replies. + * @up_req_recv: msg receiver state for up requests. +- * @lock: protects mst state, primary, guid, dpcd. ++ * @lock: protects mst state, primary, dpcd. + * @mst_state: if this manager is enabled for an MST capable port. + * @mst_primary: pointer to the primary branch device. +- * @guid_valid: GUID valid for the primary branch device. +- * @guid: GUID for primary port. + * @dpcd: cache of DPCD for primary port. + * @pbn_div: PBN to slots divisor. + * +@@ -431,13 +428,11 @@ struct drm_dp_mst_topology_mgr { + struct drm_dp_sideband_msg_rx up_req_recv; + + /* pointer to info about the initial MST device */ +- struct mutex lock; /* protects mst_state + primary + guid + dpcd */ ++ struct mutex lock; /* protects mst_state + primary + dpcd */ + + bool mst_state; + struct drm_dp_mst_branch *mst_primary; +- /* primary MST device GUID */ +- bool guid_valid; +- u8 guid[16]; ++ + u8 dpcd[DP_RECEIVER_CAP_SIZE]; + u8 sink_count; + int pbn_div; +@@ -450,9 +445,7 @@ struct drm_dp_mst_topology_mgr { + the mstb tx_slots and txmsg->state once they are queued */ + struct mutex qlock; + struct list_head tx_msg_downq; +- struct list_head tx_msg_upq; + bool tx_down_in_progress; +- bool tx_up_in_progress; + + /* payload info + lock for it */ + struct mutex payload_lock; +diff -druNp --no-dereference linux-libre-4.4-gnu/include/drm/drm_fixed.h linux-libre-4.4.7-gnu/include/drm/drm_fixed.h +--- linux-libre-4.4-gnu/include/drm/drm_fixed.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/drm/drm_fixed.h 2016-04-12 12:09:26.000000000 -0400 +@@ -73,18 +73,28 @@ static inline u32 dfixed_div(fixed20_12 + #define DRM_FIXED_ONE (1ULL << DRM_FIXED_POINT) + #define DRM_FIXED_DECIMAL_MASK (DRM_FIXED_ONE - 1) + #define DRM_FIXED_DIGITS_MASK (~DRM_FIXED_DECIMAL_MASK) ++#define DRM_FIXED_EPSILON 1LL ++#define DRM_FIXED_ALMOST_ONE (DRM_FIXED_ONE - DRM_FIXED_EPSILON) + + static inline s64 drm_int2fixp(int a) + { + return ((s64)a) << DRM_FIXED_POINT; + } + +-static inline int drm_fixp2int(int64_t a) ++static inline int drm_fixp2int(s64 a) + { + return ((s64)a) >> DRM_FIXED_POINT; + } + +-static inline unsigned drm_fixp_msbset(int64_t a) ++static inline int drm_fixp2int_ceil(s64 a) ++{ ++ if (a > 0) ++ return drm_fixp2int(a + DRM_FIXED_ALMOST_ONE); ++ else ++ return drm_fixp2int(a - DRM_FIXED_ALMOST_ONE); ++} ++ ++static inline unsigned drm_fixp_msbset(s64 a) + { + unsigned shift, sign = (a >> 63) & 1; + +@@ -136,6 +146,45 @@ static inline s64 drm_fixp_div(s64 a, s6 + return result; + } + ++static inline s64 drm_fixp_from_fraction(s64 a, s64 b) ++{ ++ s64 res; ++ bool a_neg = a < 0; ++ bool b_neg = b < 0; ++ u64 a_abs = a_neg ? -a : a; ++ u64 b_abs = b_neg ? -b : b; ++ u64 rem; ++ ++ /* determine integer part */ ++ u64 res_abs = div64_u64_rem(a_abs, b_abs, &rem); ++ ++ /* determine fractional part */ ++ { ++ u32 i = DRM_FIXED_POINT; ++ ++ do { ++ rem <<= 1; ++ res_abs <<= 1; ++ if (rem >= b_abs) { ++ res_abs |= 1; ++ rem -= b_abs; ++ } ++ } while (--i != 0); ++ } ++ ++ /* round up LSB */ ++ { ++ u64 summand = (rem << 1) >= b_abs; ++ ++ res_abs += summand; ++ } ++ ++ res = (s64) res_abs; ++ if (a_neg ^ b_neg) ++ res = -res; ++ return res; ++} ++ + static inline s64 drm_fixp_exp(s64 x) + { + s64 tolerance = div64_s64(DRM_FIXED_ONE, 1000000); +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/ata.h linux-libre-4.4.7-gnu/include/linux/ata.h +--- linux-libre-4.4-gnu/include/linux/ata.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/ata.h 2016-04-12 12:09:26.000000000 -0400 +@@ -487,8 +487,8 @@ enum ata_tf_protocols { + }; + + enum ata_ioctls { +- ATA_IOC_GET_IO32 = 0x309, +- ATA_IOC_SET_IO32 = 0x324, ++ ATA_IOC_GET_IO32 = 0x309, /* HDIO_GET_32BIT */ ++ ATA_IOC_SET_IO32 = 0x324, /* HDIO_SET_32BIT */ + }; + + /* core structures */ +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/bio.h linux-libre-4.4.7-gnu/include/linux/bio.h +--- linux-libre-4.4-gnu/include/linux/bio.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/bio.h 2016-04-12 12:09:26.000000000 -0400 +@@ -310,6 +310,38 @@ static inline void bio_clear_flag(struct + bio->bi_flags &= ~(1U << bit); + } + ++static inline void bio_get_first_bvec(struct bio *bio, struct bio_vec *bv) ++{ ++ *bv = bio_iovec(bio); ++} ++ ++static inline void bio_get_last_bvec(struct bio *bio, struct bio_vec *bv) ++{ ++ struct bvec_iter iter = bio->bi_iter; ++ int idx; ++ ++ if (unlikely(!bio_multiple_segments(bio))) { ++ *bv = bio_iovec(bio); ++ return; ++ } ++ ++ bio_advance_iter(bio, &iter, iter.bi_size); ++ ++ if (!iter.bi_bvec_done) ++ idx = iter.bi_idx - 1; ++ else /* in the middle of bvec */ ++ idx = iter.bi_idx; ++ ++ *bv = bio->bi_io_vec[idx]; ++ ++ /* ++ * iter.bi_bvec_done records actual length of the last bvec ++ * if this bio ends in the middle of one io vector ++ */ ++ if (iter.bi_bvec_done) ++ bv->bv_len = iter.bi_bvec_done; ++} ++ + enum bip_flags { + BIP_BLOCK_INTEGRITY = 1 << 0, /* block layer owns integrity data */ + BIP_MAPPED_INTEGRITY = 1 << 1, /* ref tag has been remapped */ +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/blkdev.h linux-libre-4.4.7-gnu/include/linux/blkdev.h +--- linux-libre-4.4-gnu/include/linux/blkdev.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/blkdev.h 2016-04-12 12:09:26.000000000 -0400 +@@ -1367,6 +1367,13 @@ static inline void put_dev_sector(Sector + page_cache_release(p.v); + } + ++static inline bool __bvec_gap_to_prev(struct request_queue *q, ++ struct bio_vec *bprv, unsigned int offset) ++{ ++ return offset || ++ ((bprv->bv_offset + bprv->bv_len) & queue_virt_boundary(q)); ++} ++ + /* + * Check if adding a bio_vec after bprv with offset would create a gap in + * the SG list. Most drivers don't care about this, but some do. +@@ -1376,18 +1383,22 @@ static inline bool bvec_gap_to_prev(stru + { + if (!queue_virt_boundary(q)) + return false; +- return offset || +- ((bprv->bv_offset + bprv->bv_len) & queue_virt_boundary(q)); ++ return __bvec_gap_to_prev(q, bprv, offset); + } + + static inline bool bio_will_gap(struct request_queue *q, struct bio *prev, + struct bio *next) + { +- if (!bio_has_data(prev)) +- return false; ++ if (bio_has_data(prev) && queue_virt_boundary(q)) { ++ struct bio_vec pb, nb; + +- return bvec_gap_to_prev(q, &prev->bi_io_vec[prev->bi_vcnt - 1], +- next->bi_io_vec[0].bv_offset); ++ bio_get_last_bvec(prev, &pb); ++ bio_get_first_bvec(next, &nb); ++ ++ return __bvec_gap_to_prev(q, &pb, nb.bv_offset); ++ } ++ ++ return false; + } + + static inline bool req_gap_back_merge(struct request *req, struct bio *bio) +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/ceph/messenger.h linux-libre-4.4.7-gnu/include/linux/ceph/messenger.h +--- linux-libre-4.4-gnu/include/linux/ceph/messenger.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/ceph/messenger.h 2016-04-12 12:09:26.000000000 -0400 +@@ -220,6 +220,7 @@ struct ceph_connection { + struct ceph_entity_addr actual_peer_addr; + + /* message out temps */ ++ struct ceph_msg_header out_hdr; + struct ceph_msg *out_msg; /* sending message (== tail of + out_sent) */ + bool out_msg_done; +@@ -229,7 +230,6 @@ struct ceph_connection { + int out_kvec_left; /* kvec's left in out_kvec */ + int out_skip; /* skip this many bytes */ + int out_kvec_bytes; /* total bytes left */ +- bool out_kvec_is_msg; /* kvec refers to out_msg */ + int out_more; /* there is more data after the kvecs */ + __le64 out_temp_ack; /* for writing an ack */ + struct ceph_timespec out_temp_keepalive2; /* for writing keepalive2 +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/cgroup-defs.h linux-libre-4.4.7-gnu/include/linux/cgroup-defs.h +--- linux-libre-4.4-gnu/include/linux/cgroup-defs.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/cgroup-defs.h 2016-04-12 12:09:26.000000000 -0400 +@@ -133,6 +133,12 @@ struct cgroup_subsys_state { + */ + u64 serial_nr; + ++ /* ++ * Incremented by online self and children. Used to guarantee that ++ * parents are not offlined before their children. ++ */ ++ atomic_t online_cnt; ++ + /* percpu_ref killing and RCU release */ + struct rcu_head rcu_head; + struct work_struct destroy_work; +@@ -210,6 +216,9 @@ struct css_set { + /* all css_task_iters currently walking this cset */ + struct list_head task_iters; + ++ /* dead and being drained, ignore for migration */ ++ bool dead; ++ + /* For RCU-protected deletion */ + struct rcu_head rcu_head; + }; +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/compiler.h linux-libre-4.4.7-gnu/include/linux/compiler.h +--- linux-libre-4.4-gnu/include/linux/compiler.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/compiler.h 2016-04-12 12:09:26.000000000 -0400 +@@ -144,7 +144,7 @@ void ftrace_likely_update(struct ftrace_ + */ + #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) + #define __trace_if(cond) \ +- if (__builtin_constant_p((cond)) ? !!(cond) : \ ++ if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ + ({ \ + int ______r; \ + static struct ftrace_branch_data \ +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/console.h linux-libre-4.4.7-gnu/include/linux/console.h +--- linux-libre-4.4-gnu/include/linux/console.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/console.h 2016-04-12 12:09:26.000000000 -0400 +@@ -150,6 +150,7 @@ extern int console_trylock(void); + extern void console_unlock(void); + extern void console_conditional_schedule(void); + extern void console_unblank(void); ++extern void console_flush_on_panic(void); + extern struct tty_driver *console_device(int *); + extern void console_stop(struct console *); + extern void console_start(struct console *); +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/cpuset.h linux-libre-4.4.7-gnu/include/linux/cpuset.h +--- linux-libre-4.4-gnu/include/linux/cpuset.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/cpuset.h 2016-04-12 12:09:26.000000000 -0400 +@@ -137,6 +137,8 @@ static inline void set_mems_allowed(node + task_unlock(current); + } + ++extern void cpuset_post_attach_flush(void); ++ + #else /* !CONFIG_CPUSETS */ + + static inline bool cpusets_enabled(void) { return false; } +@@ -243,6 +245,10 @@ static inline bool read_mems_allowed_ret + return false; + } + ++static inline void cpuset_post_attach_flush(void) ++{ ++} ++ + #endif /* !CONFIG_CPUSETS */ + + #endif /* _LINUX_CPUSET_H */ +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/dcache.h linux-libre-4.4.7-gnu/include/linux/dcache.h +--- linux-libre-4.4-gnu/include/linux/dcache.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/dcache.h 2016-04-12 12:09:26.000000000 -0400 +@@ -409,9 +409,7 @@ static inline bool d_mountpoint(const st + */ + static inline unsigned __d_entry_type(const struct dentry *dentry) + { +- unsigned type = READ_ONCE(dentry->d_flags); +- smp_rmb(); +- return type & DCACHE_ENTRY_TYPE; ++ return dentry->d_flags & DCACHE_ENTRY_TYPE; + } + + static inline bool d_is_miss(const struct dentry *dentry) +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/device-mapper.h linux-libre-4.4.7-gnu/include/linux/device-mapper.h +--- linux-libre-4.4-gnu/include/linux/device-mapper.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/device-mapper.h 2016-04-12 12:09:26.000000000 -0400 +@@ -124,6 +124,8 @@ struct dm_dev { + char name[16]; + }; + ++dev_t dm_get_dev_t(const char *path); ++ + /* + * Constructors should call these functions to ensure destination devices + * are opened/closed correctly. +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/devpts_fs.h linux-libre-4.4.7-gnu/include/linux/devpts_fs.h +--- linux-libre-4.4-gnu/include/linux/devpts_fs.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/devpts_fs.h 2016-04-12 12:09:26.000000000 -0400 +@@ -19,6 +19,8 @@ + + int devpts_new_index(struct inode *ptmx_inode); + void devpts_kill_index(struct inode *ptmx_inode, int idx); ++void devpts_add_ref(struct inode *ptmx_inode); ++void devpts_del_ref(struct inode *ptmx_inode); + /* mknod in devpts */ + struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index, + void *priv); +@@ -32,6 +34,8 @@ void devpts_pty_kill(struct inode *inode + /* Dummy stubs in the no-pty case */ + static inline int devpts_new_index(struct inode *ptmx_inode) { return -EINVAL; } + static inline void devpts_kill_index(struct inode *ptmx_inode, int idx) { } ++static inline void devpts_add_ref(struct inode *ptmx_inode) { } ++static inline void devpts_del_ref(struct inode *ptmx_inode) { } + static inline struct inode *devpts_pty_new(struct inode *ptmx_inode, + dev_t device, int index, void *priv) + { +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/efi.h linux-libre-4.4.7-gnu/include/linux/efi.h +--- linux-libre-4.4-gnu/include/linux/efi.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/efi.h 2016-04-12 12:09:26.000000000 -0400 +@@ -1199,7 +1199,10 @@ int efivar_entry_iter(int (*func)(struct + struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid, + struct list_head *head, bool remove); + +-bool efivar_validate(efi_char16_t *var_name, u8 *data, unsigned long len); ++bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data, ++ unsigned long data_size); ++bool efivar_variable_is_removable(efi_guid_t vendor, const char *name, ++ size_t len); + + extern struct work_struct efivar_work; + void efivar_run_worker(void); +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/fs.h linux-libre-4.4.7-gnu/include/linux/fs.h +--- linux-libre-4.4-gnu/include/linux/fs.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/fs.h 2016-04-12 12:09:26.000000000 -0400 +@@ -2217,7 +2217,7 @@ extern long do_sys_open(int dfd, const c + extern struct file *file_open_name(struct filename *, int, umode_t); + extern struct file *filp_open(const char *, int, umode_t); + extern struct file *file_open_root(struct dentry *, struct vfsmount *, +- const char *, int); ++ const char *, int, umode_t); + extern struct file * dentry_open(const struct path *, int, const struct cred *); + extern int filp_close(struct file *, fl_owner_t id); + +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/hrtimer.h linux-libre-4.4.7-gnu/include/linux/hrtimer.h +--- linux-libre-4.4-gnu/include/linux/hrtimer.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/hrtimer.h 2016-04-12 12:09:26.000000000 -0400 +@@ -87,7 +87,8 @@ enum hrtimer_restart { + * @function: timer expiry callback function + * @base: pointer to the timer base (per cpu and per clock) + * @state: state information (See bit values above) +- * @start_pid: timer statistics field to store the pid of the task which ++ * @is_rel: Set if the timer was armed relative ++ * @start_pid: timer statistics field to store the pid of the task which + * started the timer + * @start_site: timer statistics field to store the site where the timer + * was started +@@ -101,7 +102,8 @@ struct hrtimer { + ktime_t _softexpires; + enum hrtimer_restart (*function)(struct hrtimer *); + struct hrtimer_clock_base *base; +- unsigned long state; ++ u8 state; ++ u8 is_rel; + #ifdef CONFIG_TIMER_STATS + int start_pid; + void *start_site; +@@ -321,6 +323,27 @@ static inline void clock_was_set_delayed + + #endif + ++static inline ktime_t ++__hrtimer_expires_remaining_adjusted(const struct hrtimer *timer, ktime_t now) ++{ ++ ktime_t rem = ktime_sub(timer->node.expires, now); ++ ++ /* ++ * Adjust relative timers for the extra we added in ++ * hrtimer_start_range_ns() to prevent short timeouts. ++ */ ++ if (IS_ENABLED(CONFIG_TIME_LOW_RES) && timer->is_rel) ++ rem.tv64 -= hrtimer_resolution; ++ return rem; ++} ++ ++static inline ktime_t ++hrtimer_expires_remaining_adjusted(const struct hrtimer *timer) ++{ ++ return __hrtimer_expires_remaining_adjusted(timer, ++ timer->base->get_time()); ++} ++ + extern void clock_was_set(void); + #ifdef CONFIG_TIMERFD + extern void timerfd_clock_was_set(void); +@@ -390,7 +413,12 @@ static inline void hrtimer_restart(struc + } + + /* Query timers: */ +-extern ktime_t hrtimer_get_remaining(const struct hrtimer *timer); ++extern ktime_t __hrtimer_get_remaining(const struct hrtimer *timer, bool adjust); ++ ++static inline ktime_t hrtimer_get_remaining(const struct hrtimer *timer) ++{ ++ return __hrtimer_get_remaining(timer, false); ++} + + extern u64 hrtimer_get_next_event(void); + +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/hyperv.h linux-libre-4.4.7-gnu/include/linux/hyperv.h +--- linux-libre-4.4-gnu/include/linux/hyperv.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/hyperv.h 2016-04-12 12:09:26.000000000 -0400 +@@ -630,6 +630,11 @@ struct hv_input_signal_event_buffer { + struct hv_input_signal_event event; + }; + ++enum hv_signal_policy { ++ HV_SIGNAL_POLICY_DEFAULT = 0, ++ HV_SIGNAL_POLICY_EXPLICIT, ++}; ++ + struct vmbus_channel { + /* Unique channel id */ + int id; +@@ -757,8 +762,21 @@ struct vmbus_channel { + * link up channels based on their CPU affinity. + */ + struct list_head percpu_list; ++ /* ++ * Host signaling policy: The default policy will be ++ * based on the ring buffer state. We will also support ++ * a policy where the client driver can have explicit ++ * signaling control. ++ */ ++ enum hv_signal_policy signal_policy; + }; + ++static inline void set_channel_signal_state(struct vmbus_channel *c, ++ enum hv_signal_policy policy) ++{ ++ c->signal_policy = policy; ++} ++ + static inline void set_channel_read_state(struct vmbus_channel *c, bool state) + { + c->batched_reading = state; +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/intel-iommu.h linux-libre-4.4.7-gnu/include/linux/intel-iommu.h +--- linux-libre-4.4-gnu/include/linux/intel-iommu.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/intel-iommu.h 2016-04-12 12:09:26.000000000 -0400 +@@ -235,6 +235,9 @@ static inline void dmar_writeq(void __io + /* low 64 bit */ + #define dma_frcd_page_addr(d) (d & (((u64)-1) << PAGE_SHIFT)) + ++/* PRS_REG */ ++#define DMA_PRS_PPR ((u32)1) ++ + #define IOMMU_WAIT_OP(iommu, offset, op, cond, sts) \ + do { \ + cycles_t start_time = get_cycles(); \ +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/kernel.h linux-libre-4.4.7-gnu/include/linux/kernel.h +--- linux-libre-4.4-gnu/include/linux/kernel.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/kernel.h 2016-04-12 12:09:26.000000000 -0400 +@@ -607,7 +607,7 @@ do { \ + + #define do_trace_printk(fmt, args...) \ + do { \ +- static const char *trace_printk_fmt \ ++ static const char *trace_printk_fmt __used \ + __attribute__((section("__trace_printk_fmt"))) = \ + __builtin_constant_p(fmt) ? fmt : NULL; \ + \ +@@ -651,7 +651,7 @@ int __trace_printk(unsigned long ip, con + */ + + #define trace_puts(str) ({ \ +- static const char *trace_printk_fmt \ ++ static const char *trace_printk_fmt __used \ + __attribute__((section("__trace_printk_fmt"))) = \ + __builtin_constant_p(str) ? str : NULL; \ + \ +@@ -673,7 +673,7 @@ extern void trace_dump_stack(int skip); + #define ftrace_vprintk(fmt, vargs) \ + do { \ + if (__builtin_constant_p(fmt)) { \ +- static const char *trace_printk_fmt \ ++ static const char *trace_printk_fmt __used \ + __attribute__((section("__trace_printk_fmt"))) = \ + __builtin_constant_p(fmt) ? fmt : NULL; \ + \ +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/libata.h linux-libre-4.4.7-gnu/include/linux/libata.h +--- linux-libre-4.4-gnu/include/linux/libata.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/libata.h 2016-04-12 12:09:26.000000000 -0400 +@@ -718,7 +718,7 @@ struct ata_device { + union { + u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */ + u32 gscr[SATA_PMP_GSCR_DWORDS]; /* PMP GSCR block */ +- }; ++ } ____cacheline_aligned; + + /* DEVSLP Timing Variables from Identify Device Data Log */ + u8 devslp_timing[ATA_LOG_DEVSLP_SIZE]; +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/mlx5/cq.h linux-libre-4.4.7-gnu/include/linux/mlx5/cq.h +--- linux-libre-4.4-gnu/include/linux/mlx5/cq.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/mlx5/cq.h 2016-04-12 12:09:26.000000000 -0400 +@@ -45,7 +45,7 @@ struct mlx5_core_cq { + atomic_t refcount; + struct completion free; + unsigned vector; +- int irqn; ++ unsigned int irqn; + void (*comp) (struct mlx5_core_cq *); + void (*event) (struct mlx5_core_cq *, enum mlx5_event); + struct mlx5_uar *uar; +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/mlx5/driver.h linux-libre-4.4.7-gnu/include/linux/mlx5/driver.h +--- linux-libre-4.4-gnu/include/linux/mlx5/driver.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/mlx5/driver.h 2016-04-12 12:09:26.000000000 -0400 +@@ -303,7 +303,7 @@ struct mlx5_eq { + u32 cons_index; + struct mlx5_buf buf; + int size; +- u8 irqn; ++ unsigned int irqn; + u8 eqn; + int nent; + u64 mask; +@@ -762,7 +762,8 @@ int mlx5_create_map_eq(struct mlx5_core_ + int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq); + int mlx5_start_eqs(struct mlx5_core_dev *dev); + int mlx5_stop_eqs(struct mlx5_core_dev *dev); +-int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn, int *irqn); ++int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn, ++ unsigned int *irqn); + int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn); + int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn); + +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/module.h linux-libre-4.4.7-gnu/include/linux/module.h +--- linux-libre-4.4-gnu/include/linux/module.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/module.h 2016-04-12 12:09:26.000000000 -0400 +@@ -302,6 +302,12 @@ struct mod_tree_node { + struct latch_tree_node node; + }; + ++struct mod_kallsyms { ++ Elf_Sym *symtab; ++ unsigned int num_symtab; ++ char *strtab; ++}; ++ + struct module { + enum module_state state; + +@@ -411,14 +417,9 @@ struct module { + #endif + + #ifdef CONFIG_KALLSYMS +- /* +- * We keep the symbol and string tables for kallsyms. +- * The core_* fields below are temporary, loader-only (they +- * could really be discarded after module init). +- */ +- Elf_Sym *symtab, *core_symtab; +- unsigned int num_symtab, core_num_syms; +- char *strtab, *core_strtab; ++ /* Protected by RCU and/or module_mutex: use rcu_dereference() */ ++ struct mod_kallsyms *kallsyms; ++ struct mod_kallsyms core_kallsyms; + + /* Section attributes */ + struct module_sect_attrs *sect_attrs; +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/nfs_fs.h linux-libre-4.4.7-gnu/include/linux/nfs_fs.h +--- linux-libre-4.4-gnu/include/linux/nfs_fs.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/nfs_fs.h 2016-04-12 12:09:26.000000000 -0400 +@@ -544,9 +544,7 @@ extern int nfs_readpage_async(struct nf + + static inline loff_t nfs_size_to_loff_t(__u64 size) + { +- if (size > (__u64) OFFSET_MAX - 1) +- return OFFSET_MAX - 1; +- return (loff_t) size; ++ return min_t(u64, size, OFFSET_MAX); + } + + static inline ino_t +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/pci.h linux-libre-4.4.7-gnu/include/linux/pci.h +--- linux-libre-4.4-gnu/include/linux/pci.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/pci.h 2016-04-12 12:09:26.000000000 -0400 +@@ -359,6 +359,7 @@ struct pci_dev { + unsigned int io_window_1k:1; /* Intel P2P bridge 1K I/O windows */ + unsigned int irq_managed:1; + unsigned int has_secondary_link:1; ++ unsigned int non_compliant_bars:1; /* broken BARs; ignore them */ + pci_dev_flags_t dev_flags; + atomic_t enable_cnt; /* pci_enable_device has been called */ + +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/platform_data/asoc-s3c.h linux-libre-4.4.7-gnu/include/linux/platform_data/asoc-s3c.h +--- linux-libre-4.4-gnu/include/linux/platform_data/asoc-s3c.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/platform_data/asoc-s3c.h 2016-04-12 12:09:26.000000000 -0400 +@@ -39,6 +39,10 @@ struct samsung_i2s { + */ + struct s3c_audio_pdata { + int (*cfg_gpio)(struct platform_device *); ++ void *dma_playback; ++ void *dma_capture; ++ void *dma_play_sec; ++ void *dma_capture_mic; + union { + struct samsung_i2s i2s; + } type; +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/ptrace.h linux-libre-4.4.7-gnu/include/linux/ptrace.h +--- linux-libre-4.4-gnu/include/linux/ptrace.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/ptrace.h 2016-04-12 12:09:26.000000000 -0400 +@@ -57,7 +57,29 @@ extern void exit_ptrace(struct task_stru + #define PTRACE_MODE_READ 0x01 + #define PTRACE_MODE_ATTACH 0x02 + #define PTRACE_MODE_NOAUDIT 0x04 +-/* Returns true on success, false on denial. */ ++#define PTRACE_MODE_FSCREDS 0x08 ++#define PTRACE_MODE_REALCREDS 0x10 ++ ++/* shorthands for READ/ATTACH and FSCREDS/REALCREDS combinations */ ++#define PTRACE_MODE_READ_FSCREDS (PTRACE_MODE_READ | PTRACE_MODE_FSCREDS) ++#define PTRACE_MODE_READ_REALCREDS (PTRACE_MODE_READ | PTRACE_MODE_REALCREDS) ++#define PTRACE_MODE_ATTACH_FSCREDS (PTRACE_MODE_ATTACH | PTRACE_MODE_FSCREDS) ++#define PTRACE_MODE_ATTACH_REALCREDS (PTRACE_MODE_ATTACH | PTRACE_MODE_REALCREDS) ++ ++/** ++ * ptrace_may_access - check whether the caller is permitted to access ++ * a target task. ++ * @task: target task ++ * @mode: selects type of access and caller credentials ++ * ++ * Returns true on success, false on denial. ++ * ++ * One of the flags PTRACE_MODE_FSCREDS and PTRACE_MODE_REALCREDS must ++ * be set in @mode to specify whether the access was requested through ++ * a filesystem syscall (should use effective capabilities and fsuid ++ * of the caller) or through an explicit syscall such as ++ * process_vm_writev or ptrace (and should use the real credentials). ++ */ + extern bool ptrace_may_access(struct task_struct *task, unsigned int mode); + + static inline int ptrace_reparented(struct task_struct *child) +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/radix-tree.h linux-libre-4.4.7-gnu/include/linux/radix-tree.h +--- linux-libre-4.4-gnu/include/linux/radix-tree.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/radix-tree.h 2016-04-12 12:09:26.000000000 -0400 +@@ -370,12 +370,28 @@ void **radix_tree_next_chunk(struct radi + struct radix_tree_iter *iter, unsigned flags); + + /** ++ * radix_tree_iter_retry - retry this chunk of the iteration ++ * @iter: iterator state ++ * ++ * If we iterate over a tree protected only by the RCU lock, a race ++ * against deletion or creation may result in seeing a slot for which ++ * radix_tree_deref_retry() returns true. If so, call this function ++ * and continue the iteration. ++ */ ++static inline __must_check ++void **radix_tree_iter_retry(struct radix_tree_iter *iter) ++{ ++ iter->next_index = iter->index; ++ return NULL; ++} ++ ++/** + * radix_tree_chunk_size - get current chunk size + * + * @iter: pointer to radix tree iterator + * Returns: current chunk size + */ +-static __always_inline unsigned ++static __always_inline long + radix_tree_chunk_size(struct radix_tree_iter *iter) + { + return iter->next_index - iter->index; +@@ -409,9 +425,9 @@ radix_tree_next_slot(void **slot, struct + return slot + offset + 1; + } + } else { +- unsigned size = radix_tree_chunk_size(iter) - 1; ++ long size = radix_tree_chunk_size(iter); + +- while (size--) { ++ while (--size > 0) { + slot++; + iter->index++; + if (likely(*slot)) +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/rmap.h linux-libre-4.4.7-gnu/include/linux/rmap.h +--- linux-libre-4.4-gnu/include/linux/rmap.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/rmap.h 2016-04-12 12:09:26.000000000 -0400 +@@ -108,20 +108,6 @@ static inline void put_anon_vma(struct a + __put_anon_vma(anon_vma); + } + +-static inline void vma_lock_anon_vma(struct vm_area_struct *vma) +-{ +- struct anon_vma *anon_vma = vma->anon_vma; +- if (anon_vma) +- down_write(&anon_vma->root->rwsem); +-} +- +-static inline void vma_unlock_anon_vma(struct vm_area_struct *vma) +-{ +- struct anon_vma *anon_vma = vma->anon_vma; +- if (anon_vma) +- up_write(&anon_vma->root->rwsem); +-} +- + static inline void anon_vma_lock_write(struct anon_vma *anon_vma) + { + down_write(&anon_vma->root->rwsem); +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/sched.h linux-libre-4.4.7-gnu/include/linux/sched.h +--- linux-libre-4.4-gnu/include/linux/sched.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/sched.h 2016-04-12 12:09:26.000000000 -0400 +@@ -830,6 +830,7 @@ struct user_struct { + unsigned long mq_bytes; /* How many bytes can be allocated to mqueue? */ + #endif + unsigned long locked_shm; /* How many pages of mlocked shm ? */ ++ unsigned long unix_inflight; /* How many files in flight in unix sockets */ + + #ifdef CONFIG_KEYS + struct key *uid_keyring; /* UID specific keyring */ +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/shmem_fs.h linux-libre-4.4.7-gnu/include/linux/shmem_fs.h +--- linux-libre-4.4-gnu/include/linux/shmem_fs.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/shmem_fs.h 2016-04-12 12:09:26.000000000 -0400 +@@ -15,10 +15,7 @@ struct shmem_inode_info { + unsigned int seals; /* shmem seals */ + unsigned long flags; + unsigned long alloced; /* data pages alloced to file */ +- union { +- unsigned long swapped; /* subtotal assigned to swap */ +- char *symlink; /* unswappable short symlink */ +- }; ++ unsigned long swapped; /* subtotal assigned to swap */ + struct shared_policy policy; /* NUMA memory alloc policy */ + struct list_head swaplist; /* chain of maybes on swap */ + struct simple_xattrs xattrs; /* list of xattrs */ +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/skbuff.h linux-libre-4.4.7-gnu/include/linux/skbuff.h +--- linux-libre-4.4-gnu/include/linux/skbuff.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/skbuff.h 2016-04-12 12:09:26.000000000 -0400 +@@ -219,6 +219,7 @@ struct sk_buff; + #else + #define MAX_SKB_FRAGS (65536/PAGE_SIZE + 1) + #endif ++extern int sysctl_max_skb_frags; + + typedef struct skb_frag_struct skb_frag_t; + +@@ -3446,7 +3447,8 @@ struct skb_gso_cb { + int encap_level; + __u16 csum_start; + }; +-#define SKB_GSO_CB(skb) ((struct skb_gso_cb *)(skb)->cb) ++#define SKB_SGO_CB_OFFSET 32 ++#define SKB_GSO_CB(skb) ((struct skb_gso_cb *)((skb)->cb + SKB_SGO_CB_OFFSET)) + + static inline int skb_tnl_header_len(const struct sk_buff *inner_skb) + { +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/thermal.h linux-libre-4.4.7-gnu/include/linux/thermal.h +--- linux-libre-4.4-gnu/include/linux/thermal.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/thermal.h 2016-04-12 12:09:26.000000000 -0400 +@@ -43,6 +43,9 @@ + /* Default weight of a bound cooling device */ + #define THERMAL_WEIGHT_DEFAULT 0 + ++/* use value, which < 0K, to indicate an invalid/uninitialized temperature */ ++#define THERMAL_TEMP_INVALID -274000 ++ + /* Unit conversion macros */ + #define DECI_KELVIN_TO_CELSIUS(t) ({ \ + long _t = (t); \ +@@ -153,6 +156,7 @@ struct thermal_attr { + * @trip_hyst_attrs: attributes for trip points for sysfs: trip hysteresis + * @devdata: private pointer for device private data + * @trips: number of trip points the thermal zone supports ++ * @trips_disabled; bitmap for disabled trips + * @passive_delay: number of milliseconds to wait between polls when + * performing passive cooling. + * @polling_delay: number of milliseconds to wait between polls when +@@ -167,6 +171,7 @@ struct thermal_attr { + * @forced_passive: If > 0, temperature at which to switch on all ACPI + * processor cooling devices. Currently only used by the + * step-wise governor. ++ * @need_update: if equals 1, thermal_zone_device_update needs to be invoked. + * @ops: operations this &thermal_zone_device supports + * @tzp: thermal zone parameters + * @governor: pointer to the governor for this thermal zone +@@ -187,6 +192,7 @@ struct thermal_zone_device { + struct thermal_attr *trip_hyst_attrs; + void *devdata; + int trips; ++ unsigned long trips_disabled; /* bitmap for disabled trips */ + int passive_delay; + int polling_delay; + int temperature; +@@ -194,6 +200,7 @@ struct thermal_zone_device { + int emul_temperature; + int passive; + unsigned int forced_passive; ++ atomic_t need_update; + struct thermal_zone_device_ops *ops; + struct thermal_zone_params *tzp; + struct thermal_governor *governor; +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/trace_events.h linux-libre-4.4.7-gnu/include/linux/trace_events.h +--- linux-libre-4.4-gnu/include/linux/trace_events.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/trace_events.h 2016-04-12 12:09:26.000000000 -0400 +@@ -568,6 +568,8 @@ enum { + FILTER_DYN_STRING, + FILTER_PTR_STRING, + FILTER_TRACE_FN, ++ FILTER_COMM, ++ FILTER_CPU, + }; + + extern int trace_event_raw_init(struct trace_event_call *call); +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/tracepoint.h linux-libre-4.4.7-gnu/include/linux/tracepoint.h +--- linux-libre-4.4-gnu/include/linux/tracepoint.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/tracepoint.h 2016-04-12 12:09:26.000000000 -0400 +@@ -14,8 +14,10 @@ + * See the file COPYING for more details. + */ + ++#include <linux/smp.h> + #include <linux/errno.h> + #include <linux/types.h> ++#include <linux/cpumask.h> + #include <linux/rcupdate.h> + #include <linux/static_key.h> + +@@ -352,15 +354,19 @@ extern void syscall_unregfunc(void); + * "void *__data, proto" as the callback prototype. + */ + #define DECLARE_TRACE_NOARGS(name) \ +- __DECLARE_TRACE(name, void, , 1, void *__data, __data) ++ __DECLARE_TRACE(name, void, , \ ++ cpu_online(raw_smp_processor_id()), \ ++ void *__data, __data) + + #define DECLARE_TRACE(name, proto, args) \ +- __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), 1, \ +- PARAMS(void *__data, proto), \ +- PARAMS(__data, args)) ++ __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ++ cpu_online(raw_smp_processor_id()), \ ++ PARAMS(void *__data, proto), \ ++ PARAMS(__data, args)) + + #define DECLARE_TRACE_CONDITION(name, proto, args, cond) \ +- __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), PARAMS(cond), \ ++ __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ++ cpu_online(raw_smp_processor_id()) && (PARAMS(cond)), \ + PARAMS(void *__data, proto), \ + PARAMS(__data, args)) + +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/tty.h linux-libre-4.4.7-gnu/include/linux/tty.h +--- linux-libre-4.4-gnu/include/linux/tty.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/tty.h 2016-04-12 12:09:26.000000000 -0400 +@@ -594,7 +594,7 @@ static inline int tty_ldisc_receive_buf( + count = ld->ops->receive_buf2(ld->tty, p, f, count); + else { + count = min_t(int, count, ld->tty->receive_room); +- if (count) ++ if (count && ld->ops->receive_buf) + ld->ops->receive_buf(ld->tty, p, f, count); + } + return count; +@@ -654,6 +654,7 @@ extern long vt_compat_ioctl(struct tty_s + /* tty_mutex.c */ + /* functions for preparation of BKL removal */ + extern void __lockfunc tty_lock(struct tty_struct *tty); ++extern int tty_lock_interruptible(struct tty_struct *tty); + extern void __lockfunc tty_unlock(struct tty_struct *tty); + extern void __lockfunc tty_lock_slave(struct tty_struct *tty); + extern void __lockfunc tty_unlock_slave(struct tty_struct *tty); +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/ucs2_string.h linux-libre-4.4.7-gnu/include/linux/ucs2_string.h +--- linux-libre-4.4-gnu/include/linux/ucs2_string.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/ucs2_string.h 2016-04-12 12:09:26.000000000 -0400 +@@ -11,4 +11,8 @@ unsigned long ucs2_strlen(const ucs2_cha + unsigned long ucs2_strsize(const ucs2_char_t *data, unsigned long maxlength); + int ucs2_strncmp(const ucs2_char_t *a, const ucs2_char_t *b, size_t len); + ++unsigned long ucs2_utf8size(const ucs2_char_t *src); ++unsigned long ucs2_as_utf8(u8 *dest, const ucs2_char_t *src, ++ unsigned long maxlength); ++ + #endif /* _LINUX_UCS2_STRING_H_ */ +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/usb.h linux-libre-4.4.7-gnu/include/linux/usb.h +--- linux-libre-4.4-gnu/include/linux/usb.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/usb.h 2016-04-12 12:09:26.000000000 -0400 +@@ -511,6 +511,8 @@ struct usb3_lpm_parameters { + * @usb2_hw_lpm_enabled: USB2 hardware LPM is enabled + * @usb2_hw_lpm_allowed: Userspace allows USB 2.0 LPM to be enabled + * @usb3_lpm_enabled: USB3 hardware LPM enabled ++ * @usb3_lpm_u1_enabled: USB3 hardware U1 LPM enabled ++ * @usb3_lpm_u2_enabled: USB3 hardware U2 LPM enabled + * @string_langid: language ID for strings + * @product: iProduct string, if present (static) + * @manufacturer: iManufacturer string, if present (static) +@@ -584,6 +586,8 @@ struct usb_device { + unsigned usb2_hw_lpm_enabled:1; + unsigned usb2_hw_lpm_allowed:1; + unsigned usb3_lpm_enabled:1; ++ unsigned usb3_lpm_u1_enabled:1; ++ unsigned usb3_lpm_u2_enabled:1; + int string_langid; + + /* static strings from the device */ +diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/writeback.h linux-libre-4.4.7-gnu/include/linux/writeback.h +--- linux-libre-4.4-gnu/include/linux/writeback.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/linux/writeback.h 2016-04-12 12:09:26.000000000 -0400 +@@ -198,6 +198,7 @@ void wbc_attach_and_unlock_inode(struct + void wbc_detach_inode(struct writeback_control *wbc); + void wbc_account_io(struct writeback_control *wbc, struct page *page, + size_t bytes); ++void cgroup_writeback_umount(void); + + /** + * inode_attach_wb - associate an inode with its wb +@@ -301,6 +302,10 @@ static inline void wbc_account_io(struct + { + } + ++static inline void cgroup_writeback_umount(void) ++{ ++} ++ + #endif /* CONFIG_CGROUP_WRITEBACK */ + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/include/net/af_unix.h linux-libre-4.4.7-gnu/include/net/af_unix.h +--- linux-libre-4.4-gnu/include/net/af_unix.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/net/af_unix.h 2016-04-12 12:09:26.000000000 -0400 +@@ -6,8 +6,8 @@ + #include <linux/mutex.h> + #include <net/sock.h> + +-void unix_inflight(struct file *fp); +-void unix_notinflight(struct file *fp); ++void unix_inflight(struct user_struct *user, struct file *fp); ++void unix_notinflight(struct user_struct *user, struct file *fp); + void unix_gc(void); + void wait_for_unix_gc(void); + struct sock *unix_get_socket(struct file *filp); +diff -druNp --no-dereference linux-libre-4.4-gnu/include/net/dst_metadata.h linux-libre-4.4.7-gnu/include/net/dst_metadata.h +--- linux-libre-4.4-gnu/include/net/dst_metadata.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/net/dst_metadata.h 2016-04-12 12:09:26.000000000 -0400 +@@ -44,6 +44,24 @@ static inline bool skb_valid_dst(const s + return dst && !(dst->flags & DST_METADATA); + } + ++static inline int skb_metadata_dst_cmp(const struct sk_buff *skb_a, ++ const struct sk_buff *skb_b) ++{ ++ const struct metadata_dst *a, *b; ++ ++ if (!(skb_a->_skb_refdst | skb_b->_skb_refdst)) ++ return 0; ++ ++ a = (const struct metadata_dst *) skb_dst(skb_a); ++ b = (const struct metadata_dst *) skb_dst(skb_b); ++ ++ if (!a != !b || a->u.tun_info.options_len != b->u.tun_info.options_len) ++ return 1; ++ ++ return memcmp(&a->u.tun_info, &b->u.tun_info, ++ sizeof(a->u.tun_info) + a->u.tun_info.options_len); ++} ++ + struct metadata_dst *metadata_dst_alloc(u8 optslen, gfp_t flags); + struct metadata_dst __percpu *metadata_dst_alloc_percpu(u8 optslen, gfp_t flags); + +diff -druNp --no-dereference linux-libre-4.4-gnu/include/net/inet_connection_sock.h linux-libre-4.4.7-gnu/include/net/inet_connection_sock.h +--- linux-libre-4.4-gnu/include/net/inet_connection_sock.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/net/inet_connection_sock.h 2016-04-12 12:09:26.000000000 -0400 +@@ -270,8 +270,9 @@ struct dst_entry *inet_csk_route_child_s + struct sock *newsk, + const struct request_sock *req); + +-void inet_csk_reqsk_queue_add(struct sock *sk, struct request_sock *req, +- struct sock *child); ++struct sock *inet_csk_reqsk_queue_add(struct sock *sk, ++ struct request_sock *req, ++ struct sock *child); + void inet_csk_reqsk_queue_hash_add(struct sock *sk, struct request_sock *req, + unsigned long timeout); + struct sock *inet_csk_complete_hashdance(struct sock *sk, struct sock *child, +diff -druNp --no-dereference linux-libre-4.4-gnu/include/net/inet_ecn.h linux-libre-4.4.7-gnu/include/net/inet_ecn.h +--- linux-libre-4.4-gnu/include/net/inet_ecn.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/net/inet_ecn.h 2016-04-12 12:09:26.000000000 -0400 +@@ -111,11 +111,24 @@ static inline void ipv4_copy_dscp(unsign + + struct ipv6hdr; + +-static inline int IP6_ECN_set_ce(struct ipv6hdr *iph) ++/* Note: ++ * IP_ECN_set_ce() has to tweak IPV4 checksum when setting CE, ++ * meaning both changes have no effect on skb->csum if/when CHECKSUM_COMPLETE ++ * In IPv6 case, no checksum compensates the change in IPv6 header, ++ * so we have to update skb->csum. ++ */ ++static inline int IP6_ECN_set_ce(struct sk_buff *skb, struct ipv6hdr *iph) + { ++ __be32 from, to; ++ + if (INET_ECN_is_not_ect(ipv6_get_dsfield(iph))) + return 0; +- *(__be32*)iph |= htonl(INET_ECN_CE << 20); ++ ++ from = *(__be32 *)iph; ++ to = from | htonl(INET_ECN_CE << 20); ++ *(__be32 *)iph = to; ++ if (skb->ip_summed == CHECKSUM_COMPLETE) ++ skb->csum = csum_add(csum_sub(skb->csum, from), to); + return 1; + } + +@@ -142,7 +155,7 @@ static inline int INET_ECN_set_ce(struct + case cpu_to_be16(ETH_P_IPV6): + if (skb_network_header(skb) + sizeof(struct ipv6hdr) <= + skb_tail_pointer(skb)) +- return IP6_ECN_set_ce(ipv6_hdr(skb)); ++ return IP6_ECN_set_ce(skb, ipv6_hdr(skb)); + break; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/include/net/ip6_route.h linux-libre-4.4.7-gnu/include/net/ip6_route.h +--- linux-libre-4.4-gnu/include/net/ip6_route.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/net/ip6_route.h 2016-04-12 12:09:26.000000000 -0400 +@@ -64,8 +64,16 @@ static inline bool rt6_need_strict(const + + void ip6_route_input(struct sk_buff *skb); + +-struct dst_entry *ip6_route_output(struct net *net, const struct sock *sk, +- struct flowi6 *fl6); ++struct dst_entry *ip6_route_output_flags(struct net *net, const struct sock *sk, ++ struct flowi6 *fl6, int flags); ++ ++static inline struct dst_entry *ip6_route_output(struct net *net, ++ const struct sock *sk, ++ struct flowi6 *fl6) ++{ ++ return ip6_route_output_flags(net, sk, fl6, 0); ++} ++ + struct dst_entry *ip6_route_lookup(struct net *net, struct flowi6 *fl6, + int flags); + +diff -druNp --no-dereference linux-libre-4.4-gnu/include/net/ip_fib.h linux-libre-4.4.7-gnu/include/net/ip_fib.h +--- linux-libre-4.4-gnu/include/net/ip_fib.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/net/ip_fib.h 2016-04-12 12:09:26.000000000 -0400 +@@ -61,6 +61,7 @@ struct fib_nh_exception { + struct rtable __rcu *fnhe_rth_input; + struct rtable __rcu *fnhe_rth_output; + unsigned long fnhe_stamp; ++ struct rcu_head rcu; + }; + + struct fnhe_hash_bucket { +diff -druNp --no-dereference linux-libre-4.4-gnu/include/net/iw_handler.h linux-libre-4.4.7-gnu/include/net/iw_handler.h +--- linux-libre-4.4-gnu/include/net/iw_handler.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/net/iw_handler.h 2016-04-12 12:09:26.000000000 -0400 +@@ -439,6 +439,12 @@ int dev_get_wireless_info(char *buffer, + /* Send a single event to user space */ + void wireless_send_event(struct net_device *dev, unsigned int cmd, + union iwreq_data *wrqu, const char *extra); ++#ifdef CONFIG_WEXT_CORE ++/* flush all previous wext events - if work is done from netdev notifiers */ ++void wireless_nlevent_flush(void); ++#else ++static inline void wireless_nlevent_flush(void) {} ++#endif + + /* We may need a function to send a stream of events to user space. + * More on that later... */ +diff -druNp --no-dereference linux-libre-4.4-gnu/include/net/scm.h linux-libre-4.4.7-gnu/include/net/scm.h +--- linux-libre-4.4-gnu/include/net/scm.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/net/scm.h 2016-04-12 12:09:26.000000000 -0400 +@@ -21,6 +21,7 @@ struct scm_creds { + struct scm_fp_list { + short count; + short max; ++ struct user_struct *user; + struct file *fp[SCM_MAX_FD]; + }; + +diff -druNp --no-dereference linux-libre-4.4-gnu/include/net/tcp.h linux-libre-4.4.7-gnu/include/net/tcp.h +--- linux-libre-4.4-gnu/include/net/tcp.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/net/tcp.h 2016-04-12 12:09:26.000000000 -0400 +@@ -449,7 +449,7 @@ const u8 *tcp_parse_md5sig_option(const + + void tcp_v4_send_check(struct sock *sk, struct sk_buff *skb); + void tcp_v4_mtu_reduced(struct sock *sk); +-void tcp_req_err(struct sock *sk, u32 seq); ++void tcp_req_err(struct sock *sk, u32 seq, bool abort); + int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb); + struct sock *tcp_create_openreq_child(const struct sock *sk, + struct request_sock *req, +diff -druNp --no-dereference linux-libre-4.4-gnu/include/sound/rawmidi.h linux-libre-4.4.7-gnu/include/sound/rawmidi.h +--- linux-libre-4.4-gnu/include/sound/rawmidi.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/sound/rawmidi.h 2016-04-12 12:09:26.000000000 -0400 +@@ -167,6 +167,10 @@ int snd_rawmidi_transmit_peek(struct snd + int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count); + int snd_rawmidi_transmit(struct snd_rawmidi_substream *substream, + unsigned char *buffer, int count); ++int __snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream, ++ unsigned char *buffer, int count); ++int __snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, ++ int count); + + /* main midi functions */ + +diff -druNp --no-dereference linux-libre-4.4-gnu/include/target/target_core_backend.h linux-libre-4.4.7-gnu/include/target/target_core_backend.h +--- linux-libre-4.4-gnu/include/target/target_core_backend.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/target/target_core_backend.h 2016-04-12 12:09:26.000000000 -0400 +@@ -94,5 +94,8 @@ sense_reason_t passthrough_parse_cdb(str + sense_reason_t (*exec_cmd)(struct se_cmd *cmd)); + + bool target_sense_desc_format(struct se_device *dev); ++sector_t target_to_linux_sector(struct se_device *dev, sector_t lb); ++bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib, ++ struct request_queue *q, int block_size); + + #endif /* TARGET_CORE_BACKEND_H */ +diff -druNp --no-dereference linux-libre-4.4-gnu/include/target/target_core_base.h linux-libre-4.4.7-gnu/include/target/target_core_base.h +--- linux-libre-4.4-gnu/include/target/target_core_base.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/target/target_core_base.h 2016-04-12 12:09:26.000000000 -0400 +@@ -138,6 +138,7 @@ enum se_cmd_flags_table { + SCF_COMPARE_AND_WRITE = 0x00080000, + SCF_COMPARE_AND_WRITE_POST = 0x00100000, + SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC = 0x00200000, ++ SCF_ACK_KREF = 0x00400000, + }; + + /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */ +@@ -490,6 +491,8 @@ struct se_cmd { + #define CMD_T_DEV_ACTIVE (1 << 7) + #define CMD_T_REQUEST_STOP (1 << 8) + #define CMD_T_BUSY (1 << 9) ++#define CMD_T_TAS (1 << 10) ++#define CMD_T_FABRIC_STOP (1 << 11) + spinlock_t t_state_lock; + struct kref cmd_kref; + struct completion t_transport_stop_comp; +diff -druNp --no-dereference linux-libre-4.4-gnu/include/uapi/linux/Kbuild linux-libre-4.4.7-gnu/include/uapi/linux/Kbuild +--- linux-libre-4.4-gnu/include/uapi/linux/Kbuild 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/include/uapi/linux/Kbuild 2016-04-12 12:09:26.000000000 -0400 +@@ -307,7 +307,7 @@ header-y += nfs_mount.h + header-y += nl80211.h + header-y += n_r3964.h + header-y += nubus.h +-header-y += nvme.h ++header-y += nvme_ioctl.h + header-y += nvram.h + header-y += omap3isp.h + header-y += omapfb.h +diff -druNp --no-dereference linux-libre-4.4-gnu/ipc/shm.c linux-libre-4.4.7-gnu/ipc/shm.c +--- linux-libre-4.4-gnu/ipc/shm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/ipc/shm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -156,11 +156,12 @@ static inline struct shmid_kernel *shm_l + struct kern_ipc_perm *ipcp = ipc_lock(&shm_ids(ns), id); + + /* +- * We raced in the idr lookup or with shm_destroy(). Either way, the +- * ID is busted. ++ * Callers of shm_lock() must validate the status of the returned ipc ++ * object pointer (as returned by ipc_lock()), and error out as ++ * appropriate. + */ +- WARN_ON(IS_ERR(ipcp)); +- ++ if (IS_ERR(ipcp)) ++ return (void *)ipcp; + return container_of(ipcp, struct shmid_kernel, shm_perm); + } + +@@ -186,18 +187,33 @@ static inline void shm_rmid(struct ipc_n + } + + +-/* This is called by fork, once for every shm attach. */ +-static void shm_open(struct vm_area_struct *vma) ++static int __shm_open(struct vm_area_struct *vma) + { + struct file *file = vma->vm_file; + struct shm_file_data *sfd = shm_file_data(file); + struct shmid_kernel *shp; + + shp = shm_lock(sfd->ns, sfd->id); ++ ++ if (IS_ERR(shp)) ++ return PTR_ERR(shp); ++ + shp->shm_atim = get_seconds(); + shp->shm_lprid = task_tgid_vnr(current); + shp->shm_nattch++; + shm_unlock(shp); ++ return 0; ++} ++ ++/* This is called by fork, once for every shm attach. */ ++static void shm_open(struct vm_area_struct *vma) ++{ ++ int err = __shm_open(vma); ++ /* ++ * We raced in the idr lookup or with shm_destroy(). ++ * Either way, the ID is busted. ++ */ ++ WARN_ON_ONCE(err); + } + + /* +@@ -260,6 +276,14 @@ static void shm_close(struct vm_area_str + down_write(&shm_ids(ns).rwsem); + /* remove from the list of attaches of the shm segment */ + shp = shm_lock(ns, sfd->id); ++ ++ /* ++ * We raced in the idr lookup or with shm_destroy(). ++ * Either way, the ID is busted. ++ */ ++ if (WARN_ON_ONCE(IS_ERR(shp))) ++ goto done; /* no-op */ ++ + shp->shm_lprid = task_tgid_vnr(current); + shp->shm_dtim = get_seconds(); + shp->shm_nattch--; +@@ -267,6 +291,7 @@ static void shm_close(struct vm_area_str + shm_destroy(ns, shp); + else + shm_unlock(shp); ++done: + up_write(&shm_ids(ns).rwsem); + } + +@@ -388,17 +413,25 @@ static int shm_mmap(struct file *file, s + struct shm_file_data *sfd = shm_file_data(file); + int ret; + ++ /* ++ * In case of remap_file_pages() emulation, the file can represent ++ * removed IPC ID: propogate shm_lock() error to caller. ++ */ ++ ret =__shm_open(vma); ++ if (ret) ++ return ret; ++ + ret = sfd->file->f_op->mmap(sfd->file, vma); +- if (ret != 0) ++ if (ret) { ++ shm_close(vma); + return ret; ++ } + sfd->vm_ops = vma->vm_ops; + #ifdef CONFIG_MMU + WARN_ON(!sfd->vm_ops->fault); + #endif + vma->vm_ops = &shm_vm_ops; +- shm_open(vma); +- +- return ret; ++ return 0; + } + + static int shm_release(struct inode *ino, struct file *file) +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/bpf/verifier.c linux-libre-4.4.7-gnu/kernel/bpf/verifier.c +--- linux-libre-4.4-gnu/kernel/bpf/verifier.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/bpf/verifier.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1121,6 +1121,16 @@ static int check_alu_op(struct verifier_ + return -EINVAL; + } + ++ if ((opcode == BPF_LSH || opcode == BPF_RSH || ++ opcode == BPF_ARSH) && BPF_SRC(insn->code) == BPF_K) { ++ int size = BPF_CLASS(insn->code) == BPF_ALU64 ? 64 : 32; ++ ++ if (insn->imm < 0 || insn->imm >= size) { ++ verbose("invalid shift %d\n", insn->imm); ++ return -EINVAL; ++ } ++ } ++ + /* pattern match 'bpf_add Rx, imm' instruction */ + if (opcode == BPF_ADD && BPF_CLASS(insn->code) == BPF_ALU64 && + regs[insn->dst_reg].type == FRAME_PTR && +@@ -2072,7 +2082,7 @@ static void adjust_branches(struct bpf_p + /* adjust offset of jmps if necessary */ + if (i < pos && i + insn->off + 1 > pos) + insn->off += delta; +- else if (i > pos && i + insn->off + 1 < pos) ++ else if (i > pos + delta && i + insn->off + 1 <= pos + delta) + insn->off -= delta; + } + } +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/cgroup.c linux-libre-4.4.7-gnu/kernel/cgroup.c +--- linux-libre-4.4-gnu/kernel/cgroup.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/cgroup.c 2016-04-12 12:09:26.000000000 -0400 +@@ -57,7 +57,7 @@ + #include <linux/vmalloc.h> /* TODO: replace with more sophisticated array */ + #include <linux/kthread.h> + #include <linux/delay.h> +- ++#include <linux/cpuset.h> + #include <linux/atomic.h> + + /* +@@ -2498,6 +2498,14 @@ static void cgroup_migrate_add_src(struc + lockdep_assert_held(&cgroup_mutex); + lockdep_assert_held(&css_set_lock); + ++ /* ++ * If ->dead, @src_set is associated with one or more dead cgroups ++ * and doesn't contain any migratable tasks. Ignore it early so ++ * that the rest of migration path doesn't get confused by it. ++ */ ++ if (src_cset->dead) ++ return; ++ + src_cgrp = cset_cgroup_from_root(src_cset, dst_cgrp->root); + + if (!list_empty(&src_cset->mg_preload_node)) +@@ -2764,6 +2772,7 @@ out_unlock_rcu: + out_unlock_threadgroup: + percpu_up_write(&cgroup_threadgroup_rwsem); + cgroup_kn_unlock(of->kn); ++ cpuset_post_attach_flush(); + return ret ?: nbytes; + } + +@@ -4783,6 +4792,7 @@ static void init_and_link_css(struct cgr + INIT_LIST_HEAD(&css->sibling); + INIT_LIST_HEAD(&css->children); + css->serial_nr = css_serial_nr_next++; ++ atomic_set(&css->online_cnt, 0); + + if (cgroup_parent(cgrp)) { + css->parent = cgroup_css(cgroup_parent(cgrp), ss); +@@ -4805,6 +4815,10 @@ static int online_css(struct cgroup_subs + if (!ret) { + css->flags |= CSS_ONLINE; + rcu_assign_pointer(css->cgroup->subsys[ss->id], css); ++ ++ atomic_inc(&css->online_cnt); ++ if (css->parent) ++ atomic_inc(&css->parent->online_cnt); + } + return ret; + } +@@ -5036,10 +5050,15 @@ static void css_killed_work_fn(struct wo + container_of(work, struct cgroup_subsys_state, destroy_work); + + mutex_lock(&cgroup_mutex); +- offline_css(css); +- mutex_unlock(&cgroup_mutex); + +- css_put(css); ++ do { ++ offline_css(css); ++ css_put(css); ++ /* @css can't go away while we're holding cgroup_mutex */ ++ css = css->parent; ++ } while (css && atomic_dec_and_test(&css->online_cnt)); ++ ++ mutex_unlock(&cgroup_mutex); + } + + /* css kill confirmation processing requires process context, bounce */ +@@ -5048,8 +5067,10 @@ static void css_killed_ref_fn(struct per + struct cgroup_subsys_state *css = + container_of(ref, struct cgroup_subsys_state, refcnt); + +- INIT_WORK(&css->destroy_work, css_killed_work_fn); +- queue_work(cgroup_destroy_wq, &css->destroy_work); ++ if (atomic_dec_and_test(&css->online_cnt)) { ++ INIT_WORK(&css->destroy_work, css_killed_work_fn); ++ queue_work(cgroup_destroy_wq, &css->destroy_work); ++ } + } + + /** +@@ -5118,6 +5139,7 @@ static int cgroup_destroy_locked(struct + __releases(&cgroup_mutex) __acquires(&cgroup_mutex) + { + struct cgroup_subsys_state *css; ++ struct cgrp_cset_link *link; + int ssid; + + lockdep_assert_held(&cgroup_mutex); +@@ -5138,11 +5160,18 @@ static int cgroup_destroy_locked(struct + return -EBUSY; + + /* +- * Mark @cgrp dead. This prevents further task migration and child +- * creation by disabling cgroup_lock_live_group(). ++ * Mark @cgrp and the associated csets dead. The former prevents ++ * further task migration and child creation by disabling ++ * cgroup_lock_live_group(). The latter makes the csets ignored by ++ * the migration path. + */ + cgrp->self.flags &= ~CSS_ONLINE; + ++ spin_lock_bh(&css_set_lock); ++ list_for_each_entry(link, &cgrp->cset_links, cset_link) ++ link->cset->dead = true; ++ spin_unlock_bh(&css_set_lock); ++ + /* initiate massacre of all css's */ + for_each_css(css, ssid, cgrp) + kill_css(css); +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/cpuset.c linux-libre-4.4.7-gnu/kernel/cpuset.c +--- linux-libre-4.4-gnu/kernel/cpuset.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/cpuset.c 2016-04-12 12:09:26.000000000 -0400 +@@ -286,6 +286,8 @@ static struct cpuset top_cpuset = { + static DEFINE_MUTEX(cpuset_mutex); + static DEFINE_SPINLOCK(callback_lock); + ++static struct workqueue_struct *cpuset_migrate_mm_wq; ++ + /* + * CPU / memory hotplug is handled asynchronously. + */ +@@ -971,31 +973,51 @@ static int update_cpumask(struct cpuset + } + + /* +- * cpuset_migrate_mm +- * +- * Migrate memory region from one set of nodes to another. +- * +- * Temporarilly set tasks mems_allowed to target nodes of migration, +- * so that the migration code can allocate pages on these nodes. +- * +- * While the mm_struct we are migrating is typically from some +- * other task, the task_struct mems_allowed that we are hacking +- * is for our current task, which must allocate new pages for that +- * migrating memory region. ++ * Migrate memory region from one set of nodes to another. This is ++ * performed asynchronously as it can be called from process migration path ++ * holding locks involved in process management. All mm migrations are ++ * performed in the queued order and can be waited for by flushing ++ * cpuset_migrate_mm_wq. + */ + ++struct cpuset_migrate_mm_work { ++ struct work_struct work; ++ struct mm_struct *mm; ++ nodemask_t from; ++ nodemask_t to; ++}; ++ ++static void cpuset_migrate_mm_workfn(struct work_struct *work) ++{ ++ struct cpuset_migrate_mm_work *mwork = ++ container_of(work, struct cpuset_migrate_mm_work, work); ++ ++ /* on a wq worker, no need to worry about %current's mems_allowed */ ++ do_migrate_pages(mwork->mm, &mwork->from, &mwork->to, MPOL_MF_MOVE_ALL); ++ mmput(mwork->mm); ++ kfree(mwork); ++} ++ + static void cpuset_migrate_mm(struct mm_struct *mm, const nodemask_t *from, + const nodemask_t *to) + { +- struct task_struct *tsk = current; +- +- tsk->mems_allowed = *to; ++ struct cpuset_migrate_mm_work *mwork; + +- do_migrate_pages(mm, from, to, MPOL_MF_MOVE_ALL); ++ mwork = kzalloc(sizeof(*mwork), GFP_KERNEL); ++ if (mwork) { ++ mwork->mm = mm; ++ mwork->from = *from; ++ mwork->to = *to; ++ INIT_WORK(&mwork->work, cpuset_migrate_mm_workfn); ++ queue_work(cpuset_migrate_mm_wq, &mwork->work); ++ } else { ++ mmput(mm); ++ } ++} + +- rcu_read_lock(); +- guarantee_online_mems(task_cs(tsk), &tsk->mems_allowed); +- rcu_read_unlock(); ++void cpuset_post_attach_flush(void) ++{ ++ flush_workqueue(cpuset_migrate_mm_wq); + } + + /* +@@ -1096,7 +1118,8 @@ static void update_tasks_nodemask(struct + mpol_rebind_mm(mm, &cs->mems_allowed); + if (migrate) + cpuset_migrate_mm(mm, &cs->old_mems_allowed, &newmems); +- mmput(mm); ++ else ++ mmput(mm); + } + css_task_iter_end(&it); + +@@ -1541,11 +1564,11 @@ static void cpuset_attach(struct cgroup_ + * @old_mems_allowed is the right nodesets that we + * migrate mm from. + */ +- if (is_memory_migrate(cs)) { ++ if (is_memory_migrate(cs)) + cpuset_migrate_mm(mm, &oldcs->old_mems_allowed, + &cpuset_attach_nodemask_to); +- } +- mmput(mm); ++ else ++ mmput(mm); + } + } + +@@ -1710,6 +1733,7 @@ out_unlock: + mutex_unlock(&cpuset_mutex); + kernfs_unbreak_active_protection(of->kn); + css_put(&cs->css); ++ flush_workqueue(cpuset_migrate_mm_wq); + return retval ?: nbytes; + } + +@@ -2355,6 +2379,9 @@ void __init cpuset_init_smp(void) + top_cpuset.effective_mems = node_states[N_MEMORY]; + + register_hotmemory_notifier(&cpuset_track_online_nodes_nb); ++ ++ cpuset_migrate_mm_wq = alloc_ordered_workqueue("cpuset_migrate_mm", 0); ++ BUG_ON(!cpuset_migrate_mm_wq); + } + + /** +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/events/core.c linux-libre-4.4.7-gnu/kernel/events/core.c +--- linux-libre-4.4-gnu/kernel/events/core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/events/core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -3434,7 +3434,7 @@ find_lively_task_by_vpid(pid_t vpid) + + /* Reuse ptrace permission checks for now. */ + err = -EACCES; +- if (!ptrace_may_access(task, PTRACE_MODE_READ)) ++ if (!ptrace_may_access(task, PTRACE_MODE_READ_REALCREDS)) + goto errout; + + return task; +@@ -7979,6 +7979,9 @@ perf_event_alloc(struct perf_event_attr + } + } + ++ /* symmetric to unaccount_event() in _free_event() */ ++ account_event(event); ++ + return event; + + err_per_task: +@@ -8342,8 +8345,6 @@ SYSCALL_DEFINE5(perf_event_open, + } + } + +- account_event(event); +- + /* + * Special case software events and allow them to be part of + * any hardware group. +@@ -8626,8 +8627,6 @@ perf_event_create_kernel_counter(struct + /* Mark owner so we could distinguish it from user events. */ + event->owner = EVENT_OWNER_KERNEL; + +- account_event(event); +- + ctx = find_get_context(event->pmu, task, event); + if (IS_ERR(ctx)) { + err = PTR_ERR(ctx); +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/futex.c linux-libre-4.4.7-gnu/kernel/futex.c +--- linux-libre-4.4-gnu/kernel/futex.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/futex.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2755,6 +2755,11 @@ static int futex_wait_requeue_pi(u32 __u + if (q.pi_state && (q.pi_state->owner != current)) { + spin_lock(q.lock_ptr); + ret = fixup_pi_state_owner(uaddr2, &q, current); ++ /* ++ * Drop the reference to the pi state which ++ * the requeue_pi() code acquired for us. ++ */ ++ free_pi_state(q.pi_state); + spin_unlock(q.lock_ptr); + } + } else { +@@ -2881,7 +2886,7 @@ SYSCALL_DEFINE3(get_robust_list, int, pi + } + + ret = -EPERM; +- if (!ptrace_may_access(p, PTRACE_MODE_READ)) ++ if (!ptrace_may_access(p, PTRACE_MODE_READ_REALCREDS)) + goto err_unlock; + + head = p->robust_list; +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/futex_compat.c linux-libre-4.4.7-gnu/kernel/futex_compat.c +--- linux-libre-4.4-gnu/kernel/futex_compat.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/futex_compat.c 2016-04-12 12:09:26.000000000 -0400 +@@ -155,7 +155,7 @@ COMPAT_SYSCALL_DEFINE3(get_robust_list, + } + + ret = -EPERM; +- if (!ptrace_may_access(p, PTRACE_MODE_READ)) ++ if (!ptrace_may_access(p, PTRACE_MODE_READ_REALCREDS)) + goto err_unlock; + + head = p->compat_robust_list; +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/irq/handle.c linux-libre-4.4.7-gnu/kernel/irq/handle.c +--- linux-libre-4.4-gnu/kernel/irq/handle.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/irq/handle.c 2016-04-12 12:09:26.000000000 -0400 +@@ -138,7 +138,8 @@ irqreturn_t handle_irq_event_percpu(stru + unsigned int flags = 0, irq = desc->irq_data.irq; + struct irqaction *action = desc->action; + +- do { ++ /* action might have become NULL since we dropped the lock */ ++ while (action) { + irqreturn_t res; + + trace_irq_handler_entry(irq, action); +@@ -173,7 +174,7 @@ irqreturn_t handle_irq_event_percpu(stru + + retval |= res; + action = action->next; +- } while (action); ++ } + + add_interrupt_randomness(irq, flags); + +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/kcmp.c linux-libre-4.4.7-gnu/kernel/kcmp.c +--- linux-libre-4.4-gnu/kernel/kcmp.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/kcmp.c 2016-04-12 12:09:26.000000000 -0400 +@@ -122,8 +122,8 @@ SYSCALL_DEFINE5(kcmp, pid_t, pid1, pid_t + &task2->signal->cred_guard_mutex); + if (ret) + goto err; +- if (!ptrace_may_access(task1, PTRACE_MODE_READ) || +- !ptrace_may_access(task2, PTRACE_MODE_READ)) { ++ if (!ptrace_may_access(task1, PTRACE_MODE_READ_REALCREDS) || ++ !ptrace_may_access(task2, PTRACE_MODE_READ_REALCREDS)) { + ret = -EPERM; + goto err_unlock; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/memremap.c linux-libre-4.4.7-gnu/kernel/memremap.c +--- linux-libre-4.4-gnu/kernel/memremap.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/memremap.c 2016-04-12 12:09:26.000000000 -0400 +@@ -111,7 +111,7 @@ EXPORT_SYMBOL(memunmap); + + static void devm_memremap_release(struct device *dev, void *res) + { +- memunmap(res); ++ memunmap(*(void **)res); + } + + static int devm_memremap_match(struct device *dev, void *res, void *match_data) +@@ -133,8 +133,10 @@ void *devm_memremap(struct device *dev, + if (addr) { + *ptr = addr; + devres_add(dev, ptr); +- } else ++ } else { + devres_free(ptr); ++ return ERR_PTR(-ENXIO); ++ } + + return addr; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/module.c linux-libre-4.4.7-gnu/kernel/module.c +--- linux-libre-4.4-gnu/kernel/module.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/module.c 2016-04-12 12:09:26.000000000 -0400 +@@ -327,6 +327,9 @@ struct load_info { + struct _ddebug *debug; + unsigned int num_debug; + bool sig_ok; ++#ifdef CONFIG_KALLSYMS ++ unsigned long mod_kallsyms_init_off; ++#endif + struct { + unsigned int sym, str, mod, vers, info, pcpu; + } index; +@@ -2492,10 +2495,21 @@ static void layout_symtab(struct module + strsect->sh_flags |= SHF_ALLOC; + strsect->sh_entsize = get_offset(mod, &mod->init_size, strsect, + info->index.str) | INIT_OFFSET_MASK; +- mod->init_size = debug_align(mod->init_size); + pr_debug("\t%s\n", info->secstrings + strsect->sh_name); ++ ++ /* We'll tack temporary mod_kallsyms on the end. */ ++ mod->init_size = ALIGN(mod->init_size, ++ __alignof__(struct mod_kallsyms)); ++ info->mod_kallsyms_init_off = mod->init_size; ++ mod->init_size += sizeof(struct mod_kallsyms); ++ mod->init_size = debug_align(mod->init_size); + } + ++/* ++ * We use the full symtab and strtab which layout_symtab arranged to ++ * be appended to the init section. Later we switch to the cut-down ++ * core-only ones. ++ */ + static void add_kallsyms(struct module *mod, const struct load_info *info) + { + unsigned int i, ndst; +@@ -2504,28 +2518,33 @@ static void add_kallsyms(struct module * + char *s; + Elf_Shdr *symsec = &info->sechdrs[info->index.sym]; + +- mod->symtab = (void *)symsec->sh_addr; +- mod->num_symtab = symsec->sh_size / sizeof(Elf_Sym); ++ /* Set up to point into init section. */ ++ mod->kallsyms = mod->module_init + info->mod_kallsyms_init_off; ++ ++ mod->kallsyms->symtab = (void *)symsec->sh_addr; ++ mod->kallsyms->num_symtab = symsec->sh_size / sizeof(Elf_Sym); + /* Make sure we get permanent strtab: don't use info->strtab. */ +- mod->strtab = (void *)info->sechdrs[info->index.str].sh_addr; ++ mod->kallsyms->strtab = (void *)info->sechdrs[info->index.str].sh_addr; + + /* Set types up while we still have access to sections. */ +- for (i = 0; i < mod->num_symtab; i++) +- mod->symtab[i].st_info = elf_type(&mod->symtab[i], info); ++ for (i = 0; i < mod->kallsyms->num_symtab; i++) ++ mod->kallsyms->symtab[i].st_info ++ = elf_type(&mod->kallsyms->symtab[i], info); + +- mod->core_symtab = dst = mod->module_core + info->symoffs; +- mod->core_strtab = s = mod->module_core + info->stroffs; +- src = mod->symtab; +- for (ndst = i = 0; i < mod->num_symtab; i++) { ++ /* Now populate the cut down core kallsyms for after init. */ ++ mod->core_kallsyms.symtab = dst = mod->module_core + info->symoffs; ++ mod->core_kallsyms.strtab = s = mod->module_core + info->stroffs; ++ src = mod->kallsyms->symtab; ++ for (ndst = i = 0; i < mod->kallsyms->num_symtab; i++) { + if (i == 0 || + is_core_symbol(src+i, info->sechdrs, info->hdr->e_shnum)) { + dst[ndst] = src[i]; +- dst[ndst++].st_name = s - mod->core_strtab; +- s += strlcpy(s, &mod->strtab[src[i].st_name], ++ dst[ndst++].st_name = s - mod->core_kallsyms.strtab; ++ s += strlcpy(s, &mod->kallsyms->strtab[src[i].st_name], + KSYM_NAME_LEN) + 1; + } + } +- mod->core_num_syms = ndst; ++ mod->core_kallsyms.num_symtab = ndst; + } + #else + static inline void layout_symtab(struct module *mod, struct load_info *info) +@@ -3274,9 +3293,8 @@ static noinline int do_init_module(struc + module_put(mod); + trim_init_extable(mod); + #ifdef CONFIG_KALLSYMS +- mod->num_symtab = mod->core_num_syms; +- mod->symtab = mod->core_symtab; +- mod->strtab = mod->core_strtab; ++ /* Switch to core kallsyms now init is done: kallsyms may be walking! */ ++ rcu_assign_pointer(mod->kallsyms, &mod->core_kallsyms); + #endif + mod_tree_remove_init(mod); + unset_module_init_ro_nx(mod); +@@ -3515,7 +3533,7 @@ static int load_module(struct load_info + + /* Module is ready to execute: parsing args may do that. */ + after_dashes = parse_args(mod->name, mod->args, mod->kp, mod->num_kp, +- -32768, 32767, NULL, ++ -32768, 32767, mod, + unknown_module_param_cb); + if (IS_ERR(after_dashes)) { + err = PTR_ERR(after_dashes); +@@ -3646,6 +3664,11 @@ static inline int is_arm_mapping_symbol( + && (str[2] == '\0' || str[2] == '.'); + } + ++static const char *symname(struct mod_kallsyms *kallsyms, unsigned int symnum) ++{ ++ return kallsyms->strtab + kallsyms->symtab[symnum].st_name; ++} ++ + static const char *get_ksymbol(struct module *mod, + unsigned long addr, + unsigned long *size, +@@ -3653,6 +3676,7 @@ static const char *get_ksymbol(struct mo + { + unsigned int i, best = 0; + unsigned long nextval; ++ struct mod_kallsyms *kallsyms = rcu_dereference_sched(mod->kallsyms); + + /* At worse, next value is at end of module */ + if (within_module_init(addr, mod)) +@@ -3662,32 +3686,32 @@ static const char *get_ksymbol(struct mo + + /* Scan for closest preceding symbol, and next symbol. (ELF + starts real symbols at 1). */ +- for (i = 1; i < mod->num_symtab; i++) { +- if (mod->symtab[i].st_shndx == SHN_UNDEF) ++ for (i = 1; i < kallsyms->num_symtab; i++) { ++ if (kallsyms->symtab[i].st_shndx == SHN_UNDEF) + continue; + + /* We ignore unnamed symbols: they're uninformative + * and inserted at a whim. */ +- if (mod->symtab[i].st_value <= addr +- && mod->symtab[i].st_value > mod->symtab[best].st_value +- && *(mod->strtab + mod->symtab[i].st_name) != '\0' +- && !is_arm_mapping_symbol(mod->strtab + mod->symtab[i].st_name)) ++ if (*symname(kallsyms, i) == '\0' ++ || is_arm_mapping_symbol(symname(kallsyms, i))) ++ continue; ++ ++ if (kallsyms->symtab[i].st_value <= addr ++ && kallsyms->symtab[i].st_value > kallsyms->symtab[best].st_value) + best = i; +- if (mod->symtab[i].st_value > addr +- && mod->symtab[i].st_value < nextval +- && *(mod->strtab + mod->symtab[i].st_name) != '\0' +- && !is_arm_mapping_symbol(mod->strtab + mod->symtab[i].st_name)) +- nextval = mod->symtab[i].st_value; ++ if (kallsyms->symtab[i].st_value > addr ++ && kallsyms->symtab[i].st_value < nextval) ++ nextval = kallsyms->symtab[i].st_value; + } + + if (!best) + return NULL; + + if (size) +- *size = nextval - mod->symtab[best].st_value; ++ *size = nextval - kallsyms->symtab[best].st_value; + if (offset) +- *offset = addr - mod->symtab[best].st_value; +- return mod->strtab + mod->symtab[best].st_name; ++ *offset = addr - kallsyms->symtab[best].st_value; ++ return symname(kallsyms, best); + } + + /* For kallsyms to ask for address resolution. NULL means not found. Careful +@@ -3777,19 +3801,21 @@ int module_get_kallsym(unsigned int symn + + preempt_disable(); + list_for_each_entry_rcu(mod, &modules, list) { ++ struct mod_kallsyms *kallsyms; ++ + if (mod->state == MODULE_STATE_UNFORMED) + continue; +- if (symnum < mod->num_symtab) { +- *value = mod->symtab[symnum].st_value; +- *type = mod->symtab[symnum].st_info; +- strlcpy(name, mod->strtab + mod->symtab[symnum].st_name, +- KSYM_NAME_LEN); ++ kallsyms = rcu_dereference_sched(mod->kallsyms); ++ if (symnum < kallsyms->num_symtab) { ++ *value = kallsyms->symtab[symnum].st_value; ++ *type = kallsyms->symtab[symnum].st_info; ++ strlcpy(name, symname(kallsyms, symnum), KSYM_NAME_LEN); + strlcpy(module_name, mod->name, MODULE_NAME_LEN); + *exported = is_exported(name, *value, mod); + preempt_enable(); + return 0; + } +- symnum -= mod->num_symtab; ++ symnum -= kallsyms->num_symtab; + } + preempt_enable(); + return -ERANGE; +@@ -3798,11 +3824,12 @@ int module_get_kallsym(unsigned int symn + static unsigned long mod_find_symname(struct module *mod, const char *name) + { + unsigned int i; ++ struct mod_kallsyms *kallsyms = rcu_dereference_sched(mod->kallsyms); + +- for (i = 0; i < mod->num_symtab; i++) +- if (strcmp(name, mod->strtab+mod->symtab[i].st_name) == 0 && +- mod->symtab[i].st_info != 'U') +- return mod->symtab[i].st_value; ++ for (i = 0; i < kallsyms->num_symtab; i++) ++ if (strcmp(name, symname(kallsyms, i)) == 0 && ++ kallsyms->symtab[i].st_info != 'U') ++ return kallsyms->symtab[i].st_value; + return 0; + } + +@@ -3841,11 +3868,14 @@ int module_kallsyms_on_each_symbol(int ( + module_assert_mutex(); + + list_for_each_entry(mod, &modules, list) { ++ /* We hold module_mutex: no need for rcu_dereference_sched */ ++ struct mod_kallsyms *kallsyms = mod->kallsyms; ++ + if (mod->state == MODULE_STATE_UNFORMED) + continue; +- for (i = 0; i < mod->num_symtab; i++) { +- ret = fn(data, mod->strtab + mod->symtab[i].st_name, +- mod, mod->symtab[i].st_value); ++ for (i = 0; i < kallsyms->num_symtab; i++) { ++ ret = fn(data, symname(kallsyms, i), ++ mod, kallsyms->symtab[i].st_value); + if (ret != 0) + return ret; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/panic.c linux-libre-4.4.7-gnu/kernel/panic.c +--- linux-libre-4.4-gnu/kernel/panic.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/panic.c 2016-04-12 12:09:26.000000000 -0400 +@@ -157,8 +157,7 @@ void panic(const char *fmt, ...) + * panic() is not being callled from OOPS. + */ + debug_locks_off(); +- console_trylock(); +- console_unlock(); ++ console_flush_on_panic(); + + if (!panic_blink) + panic_blink = no_blink; +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/power/hibernate.c linux-libre-4.4.7-gnu/kernel/power/hibernate.c +--- linux-libre-4.4-gnu/kernel/power/hibernate.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/power/hibernate.c 2016-04-12 12:09:26.000000000 -0400 +@@ -339,6 +339,7 @@ int hibernation_snapshot(int platform_mo + pm_message_t msg; + int error; + ++ pm_suspend_clear_flags(); + error = platform_begin(platform_mode); + if (error) + goto Close; +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/printk/printk.c linux-libre-4.4.7-gnu/kernel/printk/printk.c +--- linux-libre-4.4-gnu/kernel/printk/printk.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/printk/printk.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2233,13 +2233,24 @@ void console_unlock(void) + static u64 seen_seq; + unsigned long flags; + bool wake_klogd = false; +- bool retry; ++ bool do_cond_resched, retry; + + if (console_suspended) { + up_console_sem(); + return; + } + ++ /* ++ * Console drivers are called under logbuf_lock, so ++ * @console_may_schedule should be cleared before; however, we may ++ * end up dumping a lot of lines, for example, if called from ++ * console registration path, and should invoke cond_resched() ++ * between lines if allowable. Not doing so can cause a very long ++ * scheduling stall on a slow console leading to RCU stall and ++ * softlockup warnings which exacerbate the issue with more ++ * messages practically incapacitating the system. ++ */ ++ do_cond_resched = console_may_schedule; + console_may_schedule = 0; + + /* flush buffered message fragment immediately to console */ +@@ -2311,6 +2322,9 @@ skip: + call_console_drivers(level, ext_text, ext_len, text, len); + start_critical_timings(); + local_irq_restore(flags); ++ ++ if (do_cond_resched) ++ cond_resched(); + } + console_locked = 0; + +@@ -2378,6 +2392,25 @@ void console_unblank(void) + console_unlock(); + } + ++/** ++ * console_flush_on_panic - flush console content on panic ++ * ++ * Immediately output all pending messages no matter what. ++ */ ++void console_flush_on_panic(void) ++{ ++ /* ++ * If someone else is holding the console lock, trylock will fail ++ * and may_schedule may be set. Ignore and proceed to unlock so ++ * that messages are flushed out. As this can be called from any ++ * context and we don't want to get preempted while flushing, ++ * ensure may_schedule is cleared. ++ */ ++ console_trylock(); ++ console_may_schedule = 0; ++ console_unlock(); ++} ++ + /* + * Return the console tty driver structure and its associated index + */ +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/ptrace.c linux-libre-4.4.7-gnu/kernel/ptrace.c +--- linux-libre-4.4-gnu/kernel/ptrace.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/ptrace.c 2016-04-12 12:09:26.000000000 -0400 +@@ -219,6 +219,14 @@ static int ptrace_has_cap(struct user_na + static int __ptrace_may_access(struct task_struct *task, unsigned int mode) + { + const struct cred *cred = current_cred(), *tcred; ++ int dumpable = 0; ++ kuid_t caller_uid; ++ kgid_t caller_gid; ++ ++ if (!(mode & PTRACE_MODE_FSCREDS) == !(mode & PTRACE_MODE_REALCREDS)) { ++ WARN(1, "denying ptrace access check without PTRACE_MODE_*CREDS\n"); ++ return -EPERM; ++ } + + /* May we inspect the given task? + * This check is used both for attaching with ptrace +@@ -228,18 +236,33 @@ static int __ptrace_may_access(struct ta + * because setting up the necessary parent/child relationship + * or halting the specified task is impossible. + */ +- int dumpable = 0; ++ + /* Don't let security modules deny introspection */ + if (same_thread_group(task, current)) + return 0; + rcu_read_lock(); ++ if (mode & PTRACE_MODE_FSCREDS) { ++ caller_uid = cred->fsuid; ++ caller_gid = cred->fsgid; ++ } else { ++ /* ++ * Using the euid would make more sense here, but something ++ * in userland might rely on the old behavior, and this ++ * shouldn't be a security problem since ++ * PTRACE_MODE_REALCREDS implies that the caller explicitly ++ * used a syscall that requests access to another process ++ * (and not a filesystem syscall to procfs). ++ */ ++ caller_uid = cred->uid; ++ caller_gid = cred->gid; ++ } + tcred = __task_cred(task); +- if (uid_eq(cred->uid, tcred->euid) && +- uid_eq(cred->uid, tcred->suid) && +- uid_eq(cred->uid, tcred->uid) && +- gid_eq(cred->gid, tcred->egid) && +- gid_eq(cred->gid, tcred->sgid) && +- gid_eq(cred->gid, tcred->gid)) ++ if (uid_eq(caller_uid, tcred->euid) && ++ uid_eq(caller_uid, tcred->suid) && ++ uid_eq(caller_uid, tcred->uid) && ++ gid_eq(caller_gid, tcred->egid) && ++ gid_eq(caller_gid, tcred->sgid) && ++ gid_eq(caller_gid, tcred->gid)) + goto ok; + if (ptrace_has_cap(tcred->user_ns, mode)) + goto ok; +@@ -306,7 +329,7 @@ static int ptrace_attach(struct task_str + goto out; + + task_lock(task); +- retval = __ptrace_may_access(task, PTRACE_MODE_ATTACH); ++ retval = __ptrace_may_access(task, PTRACE_MODE_ATTACH_REALCREDS); + task_unlock(task); + if (retval) + goto unlock_creds; +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/resource.c linux-libre-4.4.7-gnu/kernel/resource.c +--- linux-libre-4.4-gnu/kernel/resource.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/resource.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1083,9 +1083,10 @@ struct resource * __request_region(struc + if (!conflict) + break; + if (conflict != parent) { +- parent = conflict; +- if (!(conflict->flags & IORESOURCE_BUSY)) ++ if (!(conflict->flags & IORESOURCE_BUSY)) { ++ parent = conflict; + continue; ++ } + } + if (conflict->flags & flags & IORESOURCE_MUXED) { + add_wait_queue(&muxed_resource_wait, &wait); +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/sched/core.c linux-libre-4.4.7-gnu/kernel/sched/core.c +--- linux-libre-4.4-gnu/kernel/sched/core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/sched/core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -5525,6 +5525,7 @@ migration_call(struct notifier_block *nf + + case CPU_UP_PREPARE: + rq->calc_load_update = calc_load_update; ++ account_reset_rq(rq); + break; + + case CPU_ONLINE: +@@ -6738,7 +6739,7 @@ static void sched_init_numa(void) + + sched_domains_numa_masks[i][j] = mask; + +- for (k = 0; k < nr_node_ids; k++) { ++ for_each_node(k) { + if (node_distance(j, k) > sched_domains_numa_distance[i]) + continue; + +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/sched/cputime.c linux-libre-4.4.7-gnu/kernel/sched/cputime.c +--- linux-libre-4.4-gnu/kernel/sched/cputime.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/sched/cputime.c 2016-04-12 12:09:26.000000000 -0400 +@@ -259,21 +259,21 @@ static __always_inline bool steal_accoun + #ifdef CONFIG_PARAVIRT + if (static_key_false(¶virt_steal_enabled)) { + u64 steal; +- cputime_t steal_ct; ++ unsigned long steal_jiffies; + + steal = paravirt_steal_clock(smp_processor_id()); + steal -= this_rq()->prev_steal_time; + + /* +- * cputime_t may be less precise than nsecs (eg: if it's +- * based on jiffies). Lets cast the result to cputime ++ * steal is in nsecs but our caller is expecting steal ++ * time in jiffies. Lets cast the result to jiffies + * granularity and account the rest on the next rounds. + */ +- steal_ct = nsecs_to_cputime(steal); +- this_rq()->prev_steal_time += cputime_to_nsecs(steal_ct); ++ steal_jiffies = nsecs_to_jiffies(steal); ++ this_rq()->prev_steal_time += jiffies_to_nsecs(steal_jiffies); + +- account_steal_time(steal_ct); +- return steal_ct; ++ account_steal_time(jiffies_to_cputime(steal_jiffies)); ++ return steal_jiffies; + } + #endif + return false; +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/sched/sched.h linux-libre-4.4.7-gnu/kernel/sched/sched.h +--- linux-libre-4.4-gnu/kernel/sched/sched.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/sched/sched.h 2016-04-12 12:09:26.000000000 -0400 +@@ -1770,3 +1770,16 @@ static inline u64 irq_time_read(int cpu) + } + #endif /* CONFIG_64BIT */ + #endif /* CONFIG_IRQ_TIME_ACCOUNTING */ ++ ++static inline void account_reset_rq(struct rq *rq) ++{ ++#ifdef CONFIG_IRQ_TIME_ACCOUNTING ++ rq->prev_irq_time = 0; ++#endif ++#ifdef CONFIG_PARAVIRT ++ rq->prev_steal_time = 0; ++#endif ++#ifdef CONFIG_PARAVIRT_TIME_ACCOUNTING ++ rq->prev_steal_time_rq = 0; ++#endif ++} +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/seccomp.c linux-libre-4.4.7-gnu/kernel/seccomp.c +--- linux-libre-4.4-gnu/kernel/seccomp.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/seccomp.c 2016-04-12 12:09:26.000000000 -0400 +@@ -316,24 +316,24 @@ static inline void seccomp_sync_threads( + put_seccomp_filter(thread); + smp_store_release(&thread->seccomp.filter, + caller->seccomp.filter); ++ ++ /* ++ * Don't let an unprivileged task work around ++ * the no_new_privs restriction by creating ++ * a thread that sets it up, enters seccomp, ++ * then dies. ++ */ ++ if (task_no_new_privs(caller)) ++ task_set_no_new_privs(thread); ++ + /* + * Opt the other thread into seccomp if needed. + * As threads are considered to be trust-realm + * equivalent (see ptrace_may_access), it is safe to + * allow one thread to transition the other. + */ +- if (thread->seccomp.mode == SECCOMP_MODE_DISABLED) { +- /* +- * Don't let an unprivileged task work around +- * the no_new_privs restriction by creating +- * a thread that sets it up, enters seccomp, +- * then dies. +- */ +- if (task_no_new_privs(caller)) +- task_set_no_new_privs(thread); +- ++ if (thread->seccomp.mode == SECCOMP_MODE_DISABLED) + seccomp_assign_mode(thread, SECCOMP_MODE_FILTER); +- } + } + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/sys.c linux-libre-4.4.7-gnu/kernel/sys.c +--- linux-libre-4.4-gnu/kernel/sys.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/sys.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1853,11 +1853,13 @@ static int prctl_set_mm_map(int opt, con + user_auxv[AT_VECTOR_SIZE - 1] = AT_NULL; + } + +- if (prctl_map.exe_fd != (u32)-1) ++ if (prctl_map.exe_fd != (u32)-1) { + error = prctl_set_mm_exe_file(mm, prctl_map.exe_fd); +- down_read(&mm->mmap_sem); +- if (error) +- goto out; ++ if (error) ++ return error; ++ } ++ ++ down_write(&mm->mmap_sem); + + /* + * We don't validate if these members are pointing to +@@ -1894,10 +1896,8 @@ static int prctl_set_mm_map(int opt, con + if (prctl_map.auxv_size) + memcpy(mm->saved_auxv, user_auxv, sizeof(user_auxv)); + +- error = 0; +-out: +- up_read(&mm->mmap_sem); +- return error; ++ up_write(&mm->mmap_sem); ++ return 0; + } + #endif /* CONFIG_CHECKPOINT_RESTORE */ + +@@ -1963,7 +1963,7 @@ static int prctl_set_mm(int opt, unsigne + + error = -EINVAL; + +- down_read(&mm->mmap_sem); ++ down_write(&mm->mmap_sem); + vma = find_vma(mm, addr); + + prctl_map.start_code = mm->start_code; +@@ -2056,7 +2056,7 @@ static int prctl_set_mm(int opt, unsigne + + error = 0; + out: +- up_read(&mm->mmap_sem); ++ up_write(&mm->mmap_sem); + return error; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/sysctl_binary.c linux-libre-4.4.7-gnu/kernel/sysctl_binary.c +--- linux-libre-4.4-gnu/kernel/sysctl_binary.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/sysctl_binary.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1321,7 +1321,7 @@ static ssize_t binary_sysctl(const int * + } + + mnt = task_active_pid_ns(current)->proc_mnt; +- file = file_open_root(mnt->mnt_root, mnt, pathname, flags); ++ file = file_open_root(mnt->mnt_root, mnt, pathname, flags, 0); + result = PTR_ERR(file); + if (IS_ERR(file)) + goto out_putname; +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/time/hrtimer.c linux-libre-4.4.7-gnu/kernel/time/hrtimer.c +--- linux-libre-4.4-gnu/kernel/time/hrtimer.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/time/hrtimer.c 2016-04-12 12:09:26.000000000 -0400 +@@ -897,10 +897,10 @@ static int enqueue_hrtimer(struct hrtime + */ + static void __remove_hrtimer(struct hrtimer *timer, + struct hrtimer_clock_base *base, +- unsigned long newstate, int reprogram) ++ u8 newstate, int reprogram) + { + struct hrtimer_cpu_base *cpu_base = base->cpu_base; +- unsigned int state = timer->state; ++ u8 state = timer->state; + + timer->state = newstate; + if (!(state & HRTIMER_STATE_ENQUEUED)) +@@ -930,7 +930,7 @@ static inline int + remove_hrtimer(struct hrtimer *timer, struct hrtimer_clock_base *base, bool restart) + { + if (hrtimer_is_queued(timer)) { +- unsigned long state = timer->state; ++ u8 state = timer->state; + int reprogram; + + /* +@@ -954,6 +954,22 @@ remove_hrtimer(struct hrtimer *timer, st + return 0; + } + ++static inline ktime_t hrtimer_update_lowres(struct hrtimer *timer, ktime_t tim, ++ const enum hrtimer_mode mode) ++{ ++#ifdef CONFIG_TIME_LOW_RES ++ /* ++ * CONFIG_TIME_LOW_RES indicates that the system has no way to return ++ * granular time values. For relative timers we add hrtimer_resolution ++ * (i.e. one jiffie) to prevent short timeouts. ++ */ ++ timer->is_rel = mode & HRTIMER_MODE_REL; ++ if (timer->is_rel) ++ tim = ktime_add_safe(tim, ktime_set(0, hrtimer_resolution)); ++#endif ++ return tim; ++} ++ + /** + * hrtimer_start_range_ns - (re)start an hrtimer on the current CPU + * @timer: the timer to be added +@@ -974,19 +990,10 @@ void hrtimer_start_range_ns(struct hrtim + /* Remove an active timer from the queue: */ + remove_hrtimer(timer, base, true); + +- if (mode & HRTIMER_MODE_REL) { ++ if (mode & HRTIMER_MODE_REL) + tim = ktime_add_safe(tim, base->get_time()); +- /* +- * CONFIG_TIME_LOW_RES is a temporary way for architectures +- * to signal that they simply return xtime in +- * do_gettimeoffset(). In this case we want to round up by +- * resolution when starting a relative timer, to avoid short +- * timeouts. This will go away with the GTOD framework. +- */ +-#ifdef CONFIG_TIME_LOW_RES +- tim = ktime_add_safe(tim, ktime_set(0, hrtimer_resolution)); +-#endif +- } ++ ++ tim = hrtimer_update_lowres(timer, tim, mode); + + hrtimer_set_expires_range_ns(timer, tim, delta_ns); + +@@ -1074,19 +1081,23 @@ EXPORT_SYMBOL_GPL(hrtimer_cancel); + /** + * hrtimer_get_remaining - get remaining time for the timer + * @timer: the timer to read ++ * @adjust: adjust relative timers when CONFIG_TIME_LOW_RES=y + */ +-ktime_t hrtimer_get_remaining(const struct hrtimer *timer) ++ktime_t __hrtimer_get_remaining(const struct hrtimer *timer, bool adjust) + { + unsigned long flags; + ktime_t rem; + + lock_hrtimer_base(timer, &flags); +- rem = hrtimer_expires_remaining(timer); ++ if (IS_ENABLED(CONFIG_TIME_LOW_RES) && adjust) ++ rem = hrtimer_expires_remaining_adjusted(timer); ++ else ++ rem = hrtimer_expires_remaining(timer); + unlock_hrtimer_base(timer, &flags); + + return rem; + } +-EXPORT_SYMBOL_GPL(hrtimer_get_remaining); ++EXPORT_SYMBOL_GPL(__hrtimer_get_remaining); + + #ifdef CONFIG_NO_HZ_COMMON + /** +@@ -1220,6 +1231,14 @@ static void __run_hrtimer(struct hrtimer + fn = timer->function; + + /* ++ * Clear the 'is relative' flag for the TIME_LOW_RES case. If the ++ * timer is restarted with a period then it becomes an absolute ++ * timer. If its not restarted it does not matter. ++ */ ++ if (IS_ENABLED(CONFIG_TIME_LOW_RES)) ++ timer->is_rel = false; ++ ++ /* + * Because we run timers from hardirq context, there is no chance + * they get migrated to another cpu, therefore its safe to unlock + * the timer base. +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/time/itimer.c linux-libre-4.4.7-gnu/kernel/time/itimer.c +--- linux-libre-4.4-gnu/kernel/time/itimer.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/time/itimer.c 2016-04-12 12:09:26.000000000 -0400 +@@ -26,7 +26,7 @@ + */ + static struct timeval itimer_get_remtime(struct hrtimer *timer) + { +- ktime_t rem = hrtimer_get_remaining(timer); ++ ktime_t rem = __hrtimer_get_remaining(timer, true); + + /* + * Racy but safe: if the itimer expires after the above +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/time/posix-clock.c linux-libre-4.4.7-gnu/kernel/time/posix-clock.c +--- linux-libre-4.4-gnu/kernel/time/posix-clock.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/time/posix-clock.c 2016-04-12 12:09:26.000000000 -0400 +@@ -69,10 +69,10 @@ static ssize_t posix_clock_read(struct f + static unsigned int posix_clock_poll(struct file *fp, poll_table *wait) + { + struct posix_clock *clk = get_posix_clock(fp); +- int result = 0; ++ unsigned int result = 0; + + if (!clk) +- return -ENODEV; ++ return POLLERR; + + if (clk->ops.poll) + result = clk->ops.poll(clk, fp, wait); +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/time/posix-timers.c linux-libre-4.4.7-gnu/kernel/time/posix-timers.c +--- linux-libre-4.4-gnu/kernel/time/posix-timers.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/time/posix-timers.c 2016-04-12 12:09:26.000000000 -0400 +@@ -760,7 +760,7 @@ common_timer_get(struct k_itimer *timr, + (timr->it_sigev_notify & ~SIGEV_THREAD_ID) == SIGEV_NONE)) + timr->it_overrun += (unsigned int) hrtimer_forward(timer, now, iv); + +- remaining = ktime_sub(hrtimer_get_expires(timer), now); ++ remaining = __hrtimer_expires_remaining_adjusted(timer, now); + /* Return 0 only, when the timer is expired and not pending */ + if (remaining.tv64 <= 0) { + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/time/tick-sched.c linux-libre-4.4.7-gnu/kernel/time/tick-sched.c +--- linux-libre-4.4-gnu/kernel/time/tick-sched.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/time/tick-sched.c 2016-04-12 12:09:26.000000000 -0400 +@@ -977,9 +977,9 @@ static void tick_nohz_switch_to_nohz(voi + /* Get the next period */ + next = tick_init_jiffy_update(); + +- hrtimer_forward_now(&ts->sched_timer, tick_period); + hrtimer_set_expires(&ts->sched_timer, next); +- tick_program_event(next, 1); ++ hrtimer_forward_now(&ts->sched_timer, tick_period); ++ tick_program_event(hrtimer_get_expires(&ts->sched_timer), 1); + tick_nohz_activate(ts, NOHZ_MODE_LOWRES); + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/time/timekeeping.c linux-libre-4.4.7-gnu/kernel/time/timekeeping.c +--- linux-libre-4.4-gnu/kernel/time/timekeeping.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/time/timekeeping.c 2016-04-12 12:09:26.000000000 -0400 +@@ -305,8 +305,7 @@ static inline s64 timekeeping_get_ns(str + + delta = timekeeping_get_delta(tkr); + +- nsec = delta * tkr->mult + tkr->xtime_nsec; +- nsec >>= tkr->shift; ++ nsec = (delta * tkr->mult + tkr->xtime_nsec) >> tkr->shift; + + /* If arch requires, add in get_arch_timeoffset() */ + return nsec + arch_gettimeoffset(); +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/time/timer_list.c linux-libre-4.4.7-gnu/kernel/time/timer_list.c +--- linux-libre-4.4-gnu/kernel/time/timer_list.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/time/timer_list.c 2016-04-12 12:09:26.000000000 -0400 +@@ -69,7 +69,7 @@ print_timer(struct seq_file *m, struct h + print_name_offset(m, taddr); + SEQ_printf(m, ", "); + print_name_offset(m, timer->function); +- SEQ_printf(m, ", S:%02lx", timer->state); ++ SEQ_printf(m, ", S:%02x", timer->state); + #ifdef CONFIG_TIMER_STATS + SEQ_printf(m, ", "); + print_name_offset(m, timer->start_site); +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/trace/trace.c linux-libre-4.4.7-gnu/kernel/trace/trace.c +--- linux-libre-4.4-gnu/kernel/trace/trace.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/trace/trace.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1751,7 +1751,7 @@ void trace_buffer_unlock_commit_regs(str + { + __buffer_unlock_commit(buffer, event); + +- ftrace_trace_stack(tr, buffer, flags, 6, pc, regs); ++ ftrace_trace_stack(tr, buffer, flags, 0, pc, regs); + ftrace_trace_userstack(buffer, flags, pc); + } + EXPORT_SYMBOL_GPL(trace_buffer_unlock_commit_regs); +@@ -4949,7 +4949,10 @@ static ssize_t tracing_splice_read_pipe( + + spd.nr_pages = i; + +- ret = splice_to_pipe(pipe, &spd); ++ if (i) ++ ret = splice_to_pipe(pipe, &spd); ++ else ++ ret = 0; + out: + splice_shrink_spd(&spd); + return ret; +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/trace/trace_events.c linux-libre-4.4.7-gnu/kernel/trace/trace_events.c +--- linux-libre-4.4-gnu/kernel/trace/trace_events.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/trace/trace_events.c 2016-04-12 12:09:26.000000000 -0400 +@@ -97,16 +97,16 @@ trace_find_event_field(struct trace_even + struct ftrace_event_field *field; + struct list_head *head; + +- field = __find_event_field(&ftrace_generic_fields, name); ++ head = trace_get_fields(call); ++ field = __find_event_field(head, name); + if (field) + return field; + +- field = __find_event_field(&ftrace_common_fields, name); ++ field = __find_event_field(&ftrace_generic_fields, name); + if (field) + return field; + +- head = trace_get_fields(call); +- return __find_event_field(head, name); ++ return __find_event_field(&ftrace_common_fields, name); + } + + static int __trace_define_field(struct list_head *head, const char *type, +@@ -171,8 +171,10 @@ static int trace_define_generic_fields(v + { + int ret; + +- __generic_field(int, cpu, FILTER_OTHER); +- __generic_field(char *, comm, FILTER_PTR_STRING); ++ __generic_field(int, CPU, FILTER_CPU); ++ __generic_field(int, cpu, FILTER_CPU); ++ __generic_field(char *, COMM, FILTER_COMM); ++ __generic_field(char *, comm, FILTER_COMM); + + return ret; + } +@@ -869,7 +871,8 @@ t_next(struct seq_file *m, void *v, loff + * The ftrace subsystem is for showing formats only. + * They can not be enabled or disabled via the event files. + */ +- if (call->class && call->class->reg) ++ if (call->class && call->class->reg && ++ !(call->flags & TRACE_EVENT_FL_IGNORE_ENABLE)) + return file; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/trace/trace_events_filter.c linux-libre-4.4.7-gnu/kernel/trace/trace_events_filter.c +--- linux-libre-4.4-gnu/kernel/trace/trace_events_filter.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/trace/trace_events_filter.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1043,13 +1043,14 @@ static int init_pred(struct filter_parse + return -EINVAL; + } + +- if (is_string_field(field)) { ++ if (field->filter_type == FILTER_COMM) { ++ filter_build_regex(pred); ++ fn = filter_pred_comm; ++ pred->regex.field_len = TASK_COMM_LEN; ++ } else if (is_string_field(field)) { + filter_build_regex(pred); + +- if (!strcmp(field->name, "comm")) { +- fn = filter_pred_comm; +- pred->regex.field_len = TASK_COMM_LEN; +- } else if (field->filter_type == FILTER_STATIC_STRING) { ++ if (field->filter_type == FILTER_STATIC_STRING) { + fn = filter_pred_string; + pred->regex.field_len = field->size; + } else if (field->filter_type == FILTER_DYN_STRING) +@@ -1072,7 +1073,7 @@ static int init_pred(struct filter_parse + } + pred->val = val; + +- if (!strcmp(field->name, "cpu")) ++ if (field->filter_type == FILTER_CPU) + fn = filter_pred_cpu; + else + fn = select_comparison_fn(pred->op, field->size, +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/trace/trace_irqsoff.c linux-libre-4.4.7-gnu/kernel/trace/trace_irqsoff.c +--- linux-libre-4.4-gnu/kernel/trace/trace_irqsoff.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/trace/trace_irqsoff.c 2016-04-12 12:09:26.000000000 -0400 +@@ -109,8 +109,12 @@ static int func_prolog_dec(struct trace_ + return 0; + + local_save_flags(*flags); +- /* slight chance to get a false positive on tracing_cpu */ +- if (!irqs_disabled_flags(*flags)) ++ /* ++ * Slight chance to get a false positive on tracing_cpu, ++ * although I'm starting to think there isn't a chance. ++ * Leave this for now just to be paranoid. ++ */ ++ if (!irqs_disabled_flags(*flags) && !preempt_count()) + return 0; + + *data = per_cpu_ptr(tr->trace_buffer.data, cpu); +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/trace/trace_printk.c linux-libre-4.4.7-gnu/kernel/trace/trace_printk.c +--- linux-libre-4.4-gnu/kernel/trace/trace_printk.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/trace/trace_printk.c 2016-04-12 12:09:26.000000000 -0400 +@@ -296,6 +296,9 @@ static int t_show(struct seq_file *m, vo + const char *str = *fmt; + int i; + ++ if (!*fmt) ++ return 0; ++ + seq_printf(m, "0x%lx : \"", *(unsigned long *)fmt); + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/trace/trace_stack.c linux-libre-4.4.7-gnu/kernel/trace/trace_stack.c +--- linux-libre-4.4-gnu/kernel/trace/trace_stack.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/trace/trace_stack.c 2016-04-12 12:09:26.000000000 -0400 +@@ -126,6 +126,13 @@ check_stack(unsigned long ip, unsigned l + } + + /* ++ * Some archs may not have the passed in ip in the dump. ++ * If that happens, we need to show everything. ++ */ ++ if (i == stack_trace_max.nr_entries) ++ i = 0; ++ ++ /* + * Now find where in the stack these are. + */ + x = 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/watchdog.c linux-libre-4.4.7-gnu/kernel/watchdog.c +--- linux-libre-4.4-gnu/kernel/watchdog.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/watchdog.c 2016-04-12 12:09:26.000000000 -0400 +@@ -907,6 +907,9 @@ static int proc_watchdog_common(int whic + * both lockup detectors are disabled if proc_watchdog_update() + * returns an error. + */ ++ if (old == new) ++ goto out; ++ + err = proc_watchdog_update(); + } + out: +@@ -951,7 +954,7 @@ int proc_soft_watchdog(struct ctl_table + int proc_watchdog_thresh(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, loff_t *ppos) + { +- int err, old; ++ int err, old, new; + + get_online_cpus(); + mutex_lock(&watchdog_proc_mutex); +@@ -971,6 +974,10 @@ int proc_watchdog_thresh(struct ctl_tabl + /* + * Update the sample period. Restore on failure. + */ ++ new = ACCESS_ONCE(watchdog_thresh); ++ if (old == new) ++ goto out; ++ + set_sample_period(); + err = proc_watchdog_update(); + if (err) { +diff -druNp --no-dereference linux-libre-4.4-gnu/kernel/workqueue.c linux-libre-4.4.7-gnu/kernel/workqueue.c +--- linux-libre-4.4-gnu/kernel/workqueue.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/kernel/workqueue.c 2016-04-12 12:09:26.000000000 -0400 +@@ -568,6 +568,16 @@ static struct pool_workqueue *unbound_pw + int node) + { + assert_rcu_or_wq_mutex_or_pool_mutex(wq); ++ ++ /* ++ * XXX: @node can be NUMA_NO_NODE if CPU goes offline while a ++ * delayed item is pending. The plan is to keep CPU -> NODE ++ * mapping valid and stable across CPU on/offlines. Once that ++ * happens, this workaround can be removed. ++ */ ++ if (unlikely(node == NUMA_NO_NODE)) ++ return wq->dfl_pwq; ++ + return rcu_dereference_raw(wq->numa_pwq_tbl[node]); + } + +@@ -1458,13 +1468,13 @@ static void __queue_delayed_work(int cpu + timer_stats_timer_set_start_info(&dwork->timer); + + dwork->wq = wq; +- /* timer isn't guaranteed to run in this cpu, record earlier */ +- if (cpu == WORK_CPU_UNBOUND) +- cpu = raw_smp_processor_id(); + dwork->cpu = cpu; + timer->expires = jiffies + delay; + +- add_timer_on(timer, cpu); ++ if (unlikely(cpu != WORK_CPU_UNBOUND)) ++ add_timer_on(timer, cpu); ++ else ++ add_timer(timer); + } + + /** +diff -druNp --no-dereference linux-libre-4.4-gnu/lib/dma-debug.c linux-libre-4.4.7-gnu/lib/dma-debug.c +--- linux-libre-4.4-gnu/lib/dma-debug.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/lib/dma-debug.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1181,7 +1181,7 @@ static inline bool overlap(void *addr, u + + static void check_for_illegal_area(struct device *dev, void *addr, unsigned long len) + { +- if (overlap(addr, len, _text, _etext) || ++ if (overlap(addr, len, _stext, _etext) || + overlap(addr, len, __start_rodata, __end_rodata)) + err_printk(dev, NULL, "DMA-API: device driver maps memory from kernel text or rodata [addr=%p] [len=%lu]\n", addr, len); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/lib/dump_stack.c linux-libre-4.4.7-gnu/lib/dump_stack.c +--- linux-libre-4.4-gnu/lib/dump_stack.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/lib/dump_stack.c 2016-04-12 12:09:26.000000000 -0400 +@@ -25,6 +25,7 @@ static atomic_t dump_lock = ATOMIC_INIT( + + asmlinkage __visible void dump_stack(void) + { ++ unsigned long flags; + int was_locked; + int old; + int cpu; +@@ -33,9 +34,8 @@ asmlinkage __visible void dump_stack(voi + * Permit this cpu to perform nested stack dumps while serialising + * against other CPUs + */ +- preempt_disable(); +- + retry: ++ local_irq_save(flags); + cpu = smp_processor_id(); + old = atomic_cmpxchg(&dump_lock, -1, cpu); + if (old == -1) { +@@ -43,6 +43,7 @@ retry: + } else if (old == cpu) { + was_locked = 1; + } else { ++ local_irq_restore(flags); + cpu_relax(); + goto retry; + } +@@ -52,7 +53,7 @@ retry: + if (!was_locked) + atomic_set(&dump_lock, -1); + +- preempt_enable(); ++ local_irq_restore(flags); + } + #else + asmlinkage __visible void dump_stack(void) +diff -druNp --no-dereference linux-libre-4.4-gnu/lib/Kconfig linux-libre-4.4.7-gnu/lib/Kconfig +--- linux-libre-4.4-gnu/lib/Kconfig 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/lib/Kconfig 2016-04-12 12:09:26.000000000 -0400 +@@ -210,9 +210,11 @@ config RANDOM32_SELFTEST + # compression support is select'ed if needed + # + config 842_COMPRESS ++ select CRC32 + tristate + + config 842_DECOMPRESS ++ select CRC32 + tristate + + config ZLIB_INFLATE +diff -druNp --no-dereference linux-libre-4.4-gnu/lib/klist.c linux-libre-4.4.7-gnu/lib/klist.c +--- linux-libre-4.4-gnu/lib/klist.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/lib/klist.c 2016-04-12 12:09:26.000000000 -0400 +@@ -282,9 +282,9 @@ void klist_iter_init_node(struct klist * + struct klist_node *n) + { + i->i_klist = k; +- i->i_cur = n; +- if (n) +- kref_get(&n->n_ref); ++ i->i_cur = NULL; ++ if (n && kref_get_unless_zero(&n->n_ref)) ++ i->i_cur = n; + } + EXPORT_SYMBOL_GPL(klist_iter_init_node); + +diff -druNp --no-dereference linux-libre-4.4-gnu/lib/libcrc32c.c linux-libre-4.4.7-gnu/lib/libcrc32c.c +--- linux-libre-4.4-gnu/lib/libcrc32c.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/lib/libcrc32c.c 2016-04-12 12:09:26.000000000 -0400 +@@ -74,3 +74,4 @@ module_exit(libcrc32c_mod_fini); + MODULE_AUTHOR("Clay Haapala <chaapala@cisco.com>"); + MODULE_DESCRIPTION("CRC32c (Castagnoli) calculations"); + MODULE_LICENSE("GPL"); ++MODULE_SOFTDEP("pre: crc32c"); +diff -druNp --no-dereference linux-libre-4.4-gnu/lib/radix-tree.c linux-libre-4.4.7-gnu/lib/radix-tree.c +--- linux-libre-4.4-gnu/lib/radix-tree.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/lib/radix-tree.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1019,9 +1019,13 @@ radix_tree_gang_lookup(struct radix_tree + return 0; + + radix_tree_for_each_slot(slot, root, &iter, first_index) { +- results[ret] = indirect_to_ptr(rcu_dereference_raw(*slot)); ++ results[ret] = rcu_dereference_raw(*slot); + if (!results[ret]) + continue; ++ if (radix_tree_is_indirect_ptr(results[ret])) { ++ slot = radix_tree_iter_retry(&iter); ++ continue; ++ } + if (++ret == max_items) + break; + } +@@ -1098,9 +1102,13 @@ radix_tree_gang_lookup_tag(struct radix_ + return 0; + + radix_tree_for_each_tagged(slot, root, &iter, first_index, tag) { +- results[ret] = indirect_to_ptr(rcu_dereference_raw(*slot)); ++ results[ret] = rcu_dereference_raw(*slot); + if (!results[ret]) + continue; ++ if (radix_tree_is_indirect_ptr(results[ret])) { ++ slot = radix_tree_iter_retry(&iter); ++ continue; ++ } + if (++ret == max_items) + break; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/lib/string_helpers.c linux-libre-4.4.7-gnu/lib/string_helpers.c +--- linux-libre-4.4-gnu/lib/string_helpers.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/lib/string_helpers.c 2016-04-12 12:09:26.000000000 -0400 +@@ -43,50 +43,73 @@ void string_get_size(u64 size, u64 blk_s + [STRING_UNITS_10] = 1000, + [STRING_UNITS_2] = 1024, + }; +- int i, j; +- u32 remainder = 0, sf_cap, exp; ++ static const unsigned int rounding[] = { 500, 50, 5 }; ++ int i = 0, j; ++ u32 remainder = 0, sf_cap; + char tmp[8]; + const char *unit; + + tmp[0] = '\0'; +- i = 0; +- if (!size) ++ ++ if (blk_size == 0) ++ size = 0; ++ if (size == 0) + goto out; + +- while (blk_size >= divisor[units]) { +- remainder = do_div(blk_size, divisor[units]); ++ /* This is Napier's algorithm. Reduce the original block size to ++ * ++ * coefficient * divisor[units]^i ++ * ++ * we do the reduction so both coefficients are just under 32 bits so ++ * that multiplying them together won't overflow 64 bits and we keep ++ * as much precision as possible in the numbers. ++ * ++ * Note: it's safe to throw away the remainders here because all the ++ * precision is in the coefficients. ++ */ ++ while (blk_size >> 32) { ++ do_div(blk_size, divisor[units]); + i++; + } + +- exp = divisor[units] / (u32)blk_size; +- /* +- * size must be strictly greater than exp here to ensure that remainder +- * is greater than divisor[units] coming out of the if below. +- */ +- if (size > exp) { +- remainder = do_div(size, divisor[units]); +- remainder *= blk_size; ++ while (size >> 32) { ++ do_div(size, divisor[units]); + i++; +- } else { +- remainder *= size; + } + ++ /* now perform the actual multiplication keeping i as the sum of the ++ * two logarithms */ + size *= blk_size; +- size += remainder / divisor[units]; +- remainder %= divisor[units]; + ++ /* and logarithmically reduce it until it's just under the divisor */ + while (size >= divisor[units]) { + remainder = do_div(size, divisor[units]); + i++; + } + ++ /* work out in j how many digits of precision we need from the ++ * remainder */ + sf_cap = size; + for (j = 0; sf_cap*10 < 1000; j++) + sf_cap *= 10; + +- if (j) { ++ if (units == STRING_UNITS_2) { ++ /* express the remainder as a decimal. It's currently the ++ * numerator of a fraction whose denominator is ++ * divisor[units], which is 1 << 10 for STRING_UNITS_2 */ + remainder *= 1000; +- remainder /= divisor[units]; ++ remainder >>= 10; ++ } ++ ++ /* add a 5 to the digit below what will be printed to ensure ++ * an arithmetical round up and carry it through to size */ ++ remainder += rounding[j]; ++ if (remainder >= 1000) { ++ remainder -= 1000; ++ size += 1; ++ } ++ ++ if (j) { + snprintf(tmp, sizeof(tmp), ".%03u", remainder); + tmp[j+1] = '\0'; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/lib/ucs2_string.c linux-libre-4.4.7-gnu/lib/ucs2_string.c +--- linux-libre-4.4-gnu/lib/ucs2_string.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/lib/ucs2_string.c 2016-04-12 12:09:26.000000000 -0400 +@@ -49,3 +49,65 @@ ucs2_strncmp(const ucs2_char_t *a, const + } + } + EXPORT_SYMBOL(ucs2_strncmp); ++ ++unsigned long ++ucs2_utf8size(const ucs2_char_t *src) ++{ ++ unsigned long i; ++ unsigned long j = 0; ++ ++ for (i = 0; i < ucs2_strlen(src); i++) { ++ u16 c = src[i]; ++ ++ if (c >= 0x800) ++ j += 3; ++ else if (c >= 0x80) ++ j += 2; ++ else ++ j += 1; ++ } ++ ++ return j; ++} ++EXPORT_SYMBOL(ucs2_utf8size); ++ ++/* ++ * copy at most maxlength bytes of whole utf8 characters to dest from the ++ * ucs2 string src. ++ * ++ * The return value is the number of characters copied, not including the ++ * final NUL character. ++ */ ++unsigned long ++ucs2_as_utf8(u8 *dest, const ucs2_char_t *src, unsigned long maxlength) ++{ ++ unsigned int i; ++ unsigned long j = 0; ++ unsigned long limit = ucs2_strnlen(src, maxlength); ++ ++ for (i = 0; maxlength && i < limit; i++) { ++ u16 c = src[i]; ++ ++ if (c >= 0x800) { ++ if (maxlength < 3) ++ break; ++ maxlength -= 3; ++ dest[j++] = 0xe0 | (c & 0xf000) >> 12; ++ dest[j++] = 0x80 | (c & 0x0fc0) >> 6; ++ dest[j++] = 0x80 | (c & 0x003f); ++ } else if (c >= 0x80) { ++ if (maxlength < 2) ++ break; ++ maxlength -= 2; ++ dest[j++] = 0xc0 | (c & 0x7c0) >> 6; ++ dest[j++] = 0x80 | (c & 0x03f); ++ } else { ++ maxlength -= 1; ++ dest[j++] = c & 0x7f; ++ } ++ } ++ if (maxlength) ++ dest[j] = '\0'; ++ return j; ++} ++EXPORT_SYMBOL(ucs2_as_utf8); +diff -druNp --no-dereference linux-libre-4.4-gnu/MAINTAINERS linux-libre-4.4.7-gnu/MAINTAINERS +--- linux-libre-4.4-gnu/MAINTAINERS 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/MAINTAINERS 2016-04-12 12:09:26.000000000 -0400 +@@ -230,13 +230,13 @@ F: kernel/sys_ni.c + + ABIT UGURU 1,2 HARDWARE MONITOR DRIVER + M: Hans de Goede <hdegoede@redhat.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: drivers/hwmon/abituguru.c + + ABIT UGURU 3 HARDWARE MONITOR DRIVER + M: Alistair John Strachan <alistair@devzero.co.uk> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: drivers/hwmon/abituguru3.c + +@@ -373,14 +373,14 @@ S: Maintained + + ADM1025 HARDWARE MONITOR DRIVER + M: Jean Delvare <jdelvare@suse.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/adm1025 + F: drivers/hwmon/adm1025.c + + ADM1029 HARDWARE MONITOR DRIVER + M: Corentin Labbe <clabbe.montjoie@gmail.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: drivers/hwmon/adm1029.c + +@@ -425,7 +425,7 @@ F: drivers/video/backlight/adp8860_bl.c + + ADS1015 HARDWARE MONITOR DRIVER + M: Dirk Eibach <eibach@gdsys.de> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/ads1015 + F: drivers/hwmon/ads1015.c +@@ -438,7 +438,7 @@ F: drivers/macintosh/therm_adt746x.c + + ADT7475 HARDWARE MONITOR DRIVER + M: Jean Delvare <jdelvare@suse.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/adt7475 + F: drivers/hwmon/adt7475.c +@@ -615,7 +615,7 @@ F: include/linux/ccp.h + + AMD FAM15H PROCESSOR POWER MONITORING DRIVER + M: Andreas Herrmann <herrmann.der.user@googlemail.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/fam15h_power + F: drivers/hwmon/fam15h_power.c +@@ -779,7 +779,7 @@ F: drivers/input/mouse/bcm5974.c + + APPLE SMC DRIVER + M: Henrik Rydberg <rydberg@bitmath.org> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Odd fixes + F: drivers/hwmon/applesmc.c + +@@ -1777,7 +1777,7 @@ F: include/media/as3645a.h + + ASC7621 HARDWARE MONITOR DRIVER + M: George Joseph <george.joseph@fairview5.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/asc7621 + F: drivers/hwmon/asc7621.c +@@ -1864,7 +1864,7 @@ F: drivers/net/wireless/ath/carl9170/ + + ATK0110 HWMON DRIVER + M: Luca Tettamanti <kronos.it@gmail.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: drivers/hwmon/asus_atk0110.c + +@@ -2984,7 +2984,7 @@ F: mm/swap_cgroup.c + + CORETEMP HARDWARE MONITORING DRIVER + M: Fenghua Yu <fenghua.yu@intel.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/coretemp + F: drivers/hwmon/coretemp.c +@@ -3549,7 +3549,7 @@ T: git git://git.infradead.org/users/vko + + DME1737 HARDWARE MONITOR DRIVER + M: Juerg Haefliger <juergh@gmail.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/dme1737 + F: drivers/hwmon/dme1737.c +@@ -4262,7 +4262,7 @@ F: include/video/exynos_mipi* + + F71805F HARDWARE MONITORING DRIVER + M: Jean Delvare <jdelvare@suse.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/f71805f + F: drivers/hwmon/f71805f.c +@@ -4341,7 +4341,7 @@ F: fs/* + + FINTEK F75375S HARDWARE MONITOR AND FAN CONTROLLER DRIVER + M: Riku Voipio <riku.voipio@iki.fi> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: drivers/hwmon/f75375s.c + F: include/linux/f75375s.h +@@ -4883,8 +4883,8 @@ F: drivers/media/usb/hackrf/ + HARDWARE MONITORING + M: Jean Delvare <jdelvare@suse.com> + M: Guenter Roeck <linux@roeck-us.net> +-L: lm-sensors@lm-sensors.org +-W: http://www.lm-sensors.org/ ++L: linux-hwmon@vger.kernel.org ++W: http://hwmon.wiki.kernel.org/ + T: quilt http://jdelvare.nerim.net/devel/linux/jdelvare-hwmon/ + T: git git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git + S: Maintained +@@ -5393,7 +5393,7 @@ F: drivers/usb/atm/ueagle-atm.c + + INA209 HARDWARE MONITOR DRIVER + M: Guenter Roeck <linux@roeck-us.net> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/ina209 + F: Documentation/devicetree/bindings/i2c/ina209.txt +@@ -5401,7 +5401,7 @@ F: drivers/hwmon/ina209.c + + INA2XX HARDWARE MONITOR DRIVER + M: Guenter Roeck <linux@roeck-us.net> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/ina2xx + F: drivers/hwmon/ina2xx.c +@@ -5884,7 +5884,7 @@ F: drivers/isdn/hardware/eicon/ + + IT87 HARDWARE MONITORING DRIVER + M: Jean Delvare <jdelvare@suse.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/it87 + F: drivers/hwmon/it87.c +@@ -5920,7 +5920,7 @@ F: drivers/media/dvb-frontends/ix2505v* + + JC42.4 TEMPERATURE SENSOR DRIVER + M: Guenter Roeck <linux@roeck-us.net> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: drivers/hwmon/jc42.c + F: Documentation/hwmon/jc42 +@@ -5970,14 +5970,14 @@ F: drivers/tty/serial/jsm/ + + K10TEMP HARDWARE MONITORING DRIVER + M: Clemens Ladisch <clemens@ladisch.de> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/k10temp + F: drivers/hwmon/k10temp.c + + K8TEMP HARDWARE MONITORING DRIVER + M: Rudolf Marek <r.marek@assembler.cz> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/k8temp + F: drivers/hwmon/k8temp.c +@@ -6485,27 +6485,27 @@ F: net/llc/ + + LM73 HARDWARE MONITOR DRIVER + M: Guillaume Ligneul <guillaume.ligneul@gmail.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: drivers/hwmon/lm73.c + + LM78 HARDWARE MONITOR DRIVER + M: Jean Delvare <jdelvare@suse.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/lm78 + F: drivers/hwmon/lm78.c + + LM83 HARDWARE MONITOR DRIVER + M: Jean Delvare <jdelvare@suse.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/lm83 + F: drivers/hwmon/lm83.c + + LM90 HARDWARE MONITOR DRIVER + M: Jean Delvare <jdelvare@suse.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/lm90 + F: Documentation/devicetree/bindings/hwmon/lm90.txt +@@ -6513,7 +6513,7 @@ F: drivers/hwmon/lm90.c + + LM95234 HARDWARE MONITOR DRIVER + M: Guenter Roeck <linux@roeck-us.net> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/lm95234 + F: drivers/hwmon/lm95234.c +@@ -6580,7 +6580,7 @@ F: drivers/scsi/sym53c8xx_2/ + + LTC4261 HARDWARE MONITOR DRIVER + M: Guenter Roeck <linux@roeck-us.net> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/ltc4261 + F: drivers/hwmon/ltc4261.c +@@ -6749,28 +6749,28 @@ F: include/uapi/linux/matroxfb.h + + MAX16065 HARDWARE MONITOR DRIVER + M: Guenter Roeck <linux@roeck-us.net> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/max16065 + F: drivers/hwmon/max16065.c + + MAX20751 HARDWARE MONITOR DRIVER + M: Guenter Roeck <linux@roeck-us.net> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/max20751 + F: drivers/hwmon/max20751.c + + MAX6650 HARDWARE MONITOR AND FAN CONTROLLER DRIVER + M: "Hans J. Koch" <hjk@hansjkoch.de> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/max6650 + F: drivers/hwmon/max6650.c + + MAX6697 HARDWARE MONITOR DRIVER + M: Guenter Roeck <linux@roeck-us.net> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/max6697 + F: Documentation/devicetree/bindings/i2c/max6697.txt +@@ -7303,7 +7303,7 @@ F: drivers/scsi/NCR_D700.* + + NCT6775 HARDWARE MONITOR DRIVER + M: Guenter Roeck <linux@roeck-us.net> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/nct6775 + F: drivers/hwmon/nct6775.c +@@ -8064,7 +8064,7 @@ F: drivers/video/logo/logo_parisc* + + PC87360 HARDWARE MONITORING DRIVER + M: Jim Cromie <jim.cromie@gmail.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/pc87360 + F: drivers/hwmon/pc87360.c +@@ -8076,7 +8076,7 @@ F: drivers/char/pc8736x_gpio.c + + PC87427 HARDWARE MONITORING DRIVER + M: Jean Delvare <jdelvare@suse.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/pc87427 + F: drivers/hwmon/pc87427.c +@@ -8415,8 +8415,8 @@ F: drivers/rtc/rtc-puv3.c + + PMBUS HARDWARE MONITORING DRIVERS + M: Guenter Roeck <linux@roeck-us.net> +-L: lm-sensors@lm-sensors.org +-W: http://www.lm-sensors.org/ ++L: linux-hwmon@vger.kernel.org ++W: http://hwmon.wiki.kernel.org/ + W: http://www.roeck-us.net/linux/drivers/ + T: git git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git + S: Maintained +@@ -8610,7 +8610,7 @@ F: drivers/media/usb/pwc/* + + PWM FAN DRIVER + M: Kamil Debski <k.debski@samsung.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Supported + F: Documentation/devicetree/bindings/hwmon/pwm-fan.txt + F: Documentation/hwmon/pwm-fan +@@ -9882,28 +9882,28 @@ F: Documentation/devicetree/bindings/med + + SMM665 HARDWARE MONITOR DRIVER + M: Guenter Roeck <linux@roeck-us.net> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/smm665 + F: drivers/hwmon/smm665.c + + SMSC EMC2103 HARDWARE MONITOR DRIVER + M: Steve Glendinning <steve.glendinning@shawell.net> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/emc2103 + F: drivers/hwmon/emc2103.c + + SMSC SCH5627 HARDWARE MONITOR DRIVER + M: Hans de Goede <hdegoede@redhat.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Supported + F: Documentation/hwmon/sch5627 + F: drivers/hwmon/sch5627.c + + SMSC47B397 HARDWARE MONITOR DRIVER + M: Jean Delvare <jdelvare@suse.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/smsc47b397 + F: drivers/hwmon/smsc47b397.c +@@ -10289,9 +10289,11 @@ S: Maintained + F: drivers/net/ethernet/dlink/sundance.c + + SUPERH ++M: Yoshinori Sato <ysato@users.sourceforge.jp> ++M: Rich Felker <dalias@libc.org> + L: linux-sh@vger.kernel.org + Q: http://patchwork.kernel.org/project/linux-sh/list/ +-S: Orphan ++S: Maintained + F: Documentation/sh/ + F: arch/sh/ + F: drivers/sh/ +@@ -10828,7 +10830,7 @@ F: include/linux/mmc/sh_mobile_sdhi.h + + TMP401 HARDWARE MONITOR DRIVER + M: Guenter Roeck <linux@roeck-us.net> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/tmp401 + F: drivers/hwmon/tmp401.c +@@ -11562,14 +11564,14 @@ F: Documentation/networking/vrf.txt + + VT1211 HARDWARE MONITOR DRIVER + M: Juerg Haefliger <juergh@gmail.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/vt1211 + F: drivers/hwmon/vt1211.c + + VT8231 HARDWARE MONITOR DRIVER + M: Roger Lucas <vt8231@hiddenengine.co.uk> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: drivers/hwmon/vt8231.c + +@@ -11588,21 +11590,21 @@ F: drivers/w1/ + + W83791D HARDWARE MONITORING DRIVER + M: Marc Hulsman <m.hulsman@tudelft.nl> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/w83791d + F: drivers/hwmon/w83791d.c + + W83793 HARDWARE MONITORING DRIVER + M: Rudolf Marek <r.marek@assembler.cz> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: Documentation/hwmon/w83793 + F: drivers/hwmon/w83793.c + + W83795 HARDWARE MONITORING DRIVER + M: Jean Delvare <jdelvare@suse.com> +-L: lm-sensors@lm-sensors.org ++L: linux-hwmon@vger.kernel.org + S: Maintained + F: drivers/hwmon/w83795.c + +diff -druNp --no-dereference linux-libre-4.4-gnu/Makefile linux-libre-4.4.7-gnu/Makefile +--- linux-libre-4.4-gnu/Makefile 2016-01-10 20:54:53.000000000 -0500 ++++ linux-libre-4.4.7-gnu/Makefile 2016-04-12 21:10:38.000000000 -0400 +@@ -1,6 +1,6 @@ + VERSION = 4 + PATCHLEVEL = 4 +-SUBLEVEL = 0 ++SUBLEVEL = 7 + EXTRAVERSION = -gnu + NAME = Blurry Fish Butt + +diff -druNp --no-dereference linux-libre-4.4-gnu/mm/backing-dev.c linux-libre-4.4.7-gnu/mm/backing-dev.c +--- linux-libre-4.4-gnu/mm/backing-dev.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/mm/backing-dev.c 2016-04-12 12:09:26.000000000 -0400 +@@ -989,7 +989,7 @@ long wait_iff_congested(struct zone *zon + * here rather than calling cond_resched(). + */ + if (current->flags & PF_WQ_WORKER) +- schedule_timeout(1); ++ schedule_timeout_uninterruptible(1); + else + cond_resched(); + +diff -druNp --no-dereference linux-libre-4.4-gnu/mm/balloon_compaction.c linux-libre-4.4.7-gnu/mm/balloon_compaction.c +--- linux-libre-4.4-gnu/mm/balloon_compaction.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/mm/balloon_compaction.c 2016-04-12 12:09:26.000000000 -0400 +@@ -61,6 +61,7 @@ struct page *balloon_page_dequeue(struct + bool dequeued_page; + + dequeued_page = false; ++ spin_lock_irqsave(&b_dev_info->pages_lock, flags); + list_for_each_entry_safe(page, tmp, &b_dev_info->pages, lru) { + /* + * Block others from accessing the 'page' while we get around +@@ -75,15 +76,14 @@ struct page *balloon_page_dequeue(struct + continue; + } + #endif +- spin_lock_irqsave(&b_dev_info->pages_lock, flags); + balloon_page_delete(page); + __count_vm_event(BALLOON_DEFLATE); +- spin_unlock_irqrestore(&b_dev_info->pages_lock, flags); + unlock_page(page); + dequeued_page = true; + break; + } + } ++ spin_unlock_irqrestore(&b_dev_info->pages_lock, flags); + + if (!dequeued_page) { + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/mm/memcontrol.c linux-libre-4.4.7-gnu/mm/memcontrol.c +--- linux-libre-4.4-gnu/mm/memcontrol.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/mm/memcontrol.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1332,7 +1332,7 @@ static unsigned long mem_cgroup_get_limi + return limit; + } + +-static void mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask, ++static bool mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask, + int order) + { + struct oom_control oc = { +@@ -1410,6 +1410,7 @@ static void mem_cgroup_out_of_memory(str + } + unlock: + mutex_unlock(&oom_lock); ++ return chosen; + } + + #if MAX_NUMNODES > 1 +@@ -3522,16 +3523,17 @@ static void __mem_cgroup_usage_unregiste + swap_buffers: + /* Swap primary and spare array */ + thresholds->spare = thresholds->primary; +- /* If all events are unregistered, free the spare array */ +- if (!new) { +- kfree(thresholds->spare); +- thresholds->spare = NULL; +- } + + rcu_assign_pointer(thresholds->primary, new); + + /* To be sure that nobody uses thresholds */ + synchronize_rcu(); ++ ++ /* If all events are unregistered, free the spare array */ ++ if (!new) { ++ kfree(thresholds->spare); ++ thresholds->spare = NULL; ++ } + unlock: + mutex_unlock(&memcg->thresholds_lock); + } +@@ -5120,6 +5122,7 @@ static ssize_t memory_high_write(struct + char *buf, size_t nbytes, loff_t off) + { + struct mem_cgroup *memcg = mem_cgroup_from_css(of_css(of)); ++ unsigned long nr_pages; + unsigned long high; + int err; + +@@ -5130,6 +5133,11 @@ static ssize_t memory_high_write(struct + + memcg->high = high; + ++ nr_pages = page_counter_read(&memcg->memory); ++ if (nr_pages > high) ++ try_to_free_mem_cgroup_pages(memcg, nr_pages - high, ++ GFP_KERNEL, true); ++ + memcg_wb_domain_size_changed(memcg); + return nbytes; + } +@@ -5151,6 +5159,8 @@ static ssize_t memory_max_write(struct k + char *buf, size_t nbytes, loff_t off) + { + struct mem_cgroup *memcg = mem_cgroup_from_css(of_css(of)); ++ unsigned int nr_reclaims = MEM_CGROUP_RECLAIM_RETRIES; ++ bool drained = false; + unsigned long max; + int err; + +@@ -5159,9 +5169,36 @@ static ssize_t memory_max_write(struct k + if (err) + return err; + +- err = mem_cgroup_resize_limit(memcg, max); +- if (err) +- return err; ++ xchg(&memcg->memory.limit, max); ++ ++ for (;;) { ++ unsigned long nr_pages = page_counter_read(&memcg->memory); ++ ++ if (nr_pages <= max) ++ break; ++ ++ if (signal_pending(current)) { ++ err = -EINTR; ++ break; ++ } ++ ++ if (!drained) { ++ drain_all_stock(memcg); ++ drained = true; ++ continue; ++ } ++ ++ if (nr_reclaims) { ++ if (!try_to_free_mem_cgroup_pages(memcg, nr_pages - max, ++ GFP_KERNEL, true)) ++ nr_reclaims--; ++ continue; ++ } ++ ++ mem_cgroup_events(memcg, MEMCG_OOM, 1); ++ if (!mem_cgroup_out_of_memory(memcg, GFP_KERNEL, 0)) ++ break; ++ } + + memcg_wb_domain_size_changed(memcg); + return nbytes; +diff -druNp --no-dereference linux-libre-4.4-gnu/mm/memory.c linux-libre-4.4.7-gnu/mm/memory.c +--- linux-libre-4.4-gnu/mm/memory.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/mm/memory.c 2016-04-12 12:09:26.000000000 -0400 +@@ -3399,8 +3399,18 @@ static int __handle_mm_fault(struct mm_s + if (unlikely(pmd_none(*pmd)) && + unlikely(__pte_alloc(mm, vma, pmd, address))) + return VM_FAULT_OOM; +- /* if an huge pmd materialized from under us just retry later */ +- if (unlikely(pmd_trans_huge(*pmd))) ++ /* ++ * If a huge pmd materialized under us just retry later. Use ++ * pmd_trans_unstable() instead of pmd_trans_huge() to ensure the pmd ++ * didn't become pmd_trans_huge under us and then back to pmd_none, as ++ * a result of MADV_DONTNEED running immediately after a huge pmd fault ++ * in a different thread of this mm, in turn leading to a misleading ++ * pmd_trans_huge() retval. All we have to ensure is that it is a ++ * regular pmd that we can walk with pte_offset_map() and we can do that ++ * through an atomic read in C, which is what pmd_trans_unstable() ++ * provides. ++ */ ++ if (unlikely(pmd_trans_unstable(pmd))) + return 0; + /* + * A regular pmd is established and it can't morph into a huge pmd +diff -druNp --no-dereference linux-libre-4.4-gnu/mm/memory-failure.c linux-libre-4.4.7-gnu/mm/memory-failure.c +--- linux-libre-4.4-gnu/mm/memory-failure.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/mm/memory-failure.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1572,7 +1572,7 @@ static int get_any_page(struct page *pag + * Did it turn free? + */ + ret = __get_any_page(page, pfn, 0); +- if (!PageLRU(page)) { ++ if (ret == 1 && !PageLRU(page)) { + /* Drop page reference which is from __get_any_page() */ + put_hwpoison_page(page); + pr_info("soft_offline: %#lx: unknown non LRU page type %lx\n", +diff -druNp --no-dereference linux-libre-4.4-gnu/mm/migrate.c linux-libre-4.4.7-gnu/mm/migrate.c +--- linux-libre-4.4-gnu/mm/migrate.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/mm/migrate.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1578,7 +1578,7 @@ static struct page *alloc_misplaced_dst_ + (GFP_HIGHUSER_MOVABLE | + __GFP_THISNODE | __GFP_NOMEMALLOC | + __GFP_NORETRY | __GFP_NOWARN) & +- ~(__GFP_IO | __GFP_FS), 0); ++ ~__GFP_RECLAIM, 0); + + return newpage; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/mm/mlock.c linux-libre-4.4.7-gnu/mm/mlock.c +--- linux-libre-4.4-gnu/mm/mlock.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/mm/mlock.c 2016-04-12 12:09:26.000000000 -0400 +@@ -172,7 +172,7 @@ static void __munlock_isolation_failed(s + */ + unsigned int munlock_vma_page(struct page *page) + { +- unsigned int nr_pages; ++ int nr_pages; + struct zone *zone = page_zone(page); + + /* For try_to_munlock() and to serialize with page migration */ +diff -druNp --no-dereference linux-libre-4.4-gnu/mm/mmap.c linux-libre-4.4.7-gnu/mm/mmap.c +--- linux-libre-4.4-gnu/mm/mmap.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/mm/mmap.c 2016-04-12 12:09:26.000000000 -0400 +@@ -441,12 +441,16 @@ static void validate_mm(struct mm_struct + struct vm_area_struct *vma = mm->mmap; + + while (vma) { ++ struct anon_vma *anon_vma = vma->anon_vma; + struct anon_vma_chain *avc; + +- vma_lock_anon_vma(vma); +- list_for_each_entry(avc, &vma->anon_vma_chain, same_vma) +- anon_vma_interval_tree_verify(avc); +- vma_unlock_anon_vma(vma); ++ if (anon_vma) { ++ anon_vma_lock_read(anon_vma); ++ list_for_each_entry(avc, &vma->anon_vma_chain, same_vma) ++ anon_vma_interval_tree_verify(avc); ++ anon_vma_unlock_read(anon_vma); ++ } ++ + highest_address = vma->vm_end; + vma = vma->vm_next; + i++; +@@ -2147,32 +2151,27 @@ static int acct_stack_growth(struct vm_a + int expand_upwards(struct vm_area_struct *vma, unsigned long address) + { + struct mm_struct *mm = vma->vm_mm; +- int error; ++ int error = 0; + + if (!(vma->vm_flags & VM_GROWSUP)) + return -EFAULT; + +- /* +- * We must make sure the anon_vma is allocated +- * so that the anon_vma locking is not a noop. +- */ ++ /* Guard against wrapping around to address 0. */ ++ if (address < PAGE_ALIGN(address+4)) ++ address = PAGE_ALIGN(address+4); ++ else ++ return -ENOMEM; ++ ++ /* We must make sure the anon_vma is allocated. */ + if (unlikely(anon_vma_prepare(vma))) + return -ENOMEM; +- vma_lock_anon_vma(vma); + + /* + * vma->vm_start/vm_end cannot change under us because the caller + * is required to hold the mmap_sem in read mode. We need the + * anon_vma lock to serialize against concurrent expand_stacks. +- * Also guard against wrapping around to address 0. + */ +- if (address < PAGE_ALIGN(address+4)) +- address = PAGE_ALIGN(address+4); +- else { +- vma_unlock_anon_vma(vma); +- return -ENOMEM; +- } +- error = 0; ++ anon_vma_lock_write(vma->anon_vma); + + /* Somebody else might have raced and expanded it already */ + if (address > vma->vm_end) { +@@ -2190,7 +2189,7 @@ int expand_upwards(struct vm_area_struct + * updates, but we only hold a shared mmap_sem + * lock here, so we need to protect against + * concurrent vma expansions. +- * vma_lock_anon_vma() doesn't help here, as ++ * anon_vma_lock_write() doesn't help here, as + * we don't guarantee that all growable vmas + * in a mm share the same root anon vma. + * So, we reuse mm->page_table_lock to guard +@@ -2214,7 +2213,7 @@ int expand_upwards(struct vm_area_struct + } + } + } +- vma_unlock_anon_vma(vma); ++ anon_vma_unlock_write(vma->anon_vma); + khugepaged_enter_vma_merge(vma, vma->vm_flags); + validate_mm(mm); + return error; +@@ -2230,25 +2229,21 @@ int expand_downwards(struct vm_area_stru + struct mm_struct *mm = vma->vm_mm; + int error; + +- /* +- * We must make sure the anon_vma is allocated +- * so that the anon_vma locking is not a noop. +- */ +- if (unlikely(anon_vma_prepare(vma))) +- return -ENOMEM; +- + address &= PAGE_MASK; + error = security_mmap_addr(address); + if (error) + return error; + +- vma_lock_anon_vma(vma); ++ /* We must make sure the anon_vma is allocated. */ ++ if (unlikely(anon_vma_prepare(vma))) ++ return -ENOMEM; + + /* + * vma->vm_start/vm_end cannot change under us because the caller + * is required to hold the mmap_sem in read mode. We need the + * anon_vma lock to serialize against concurrent expand_stacks. + */ ++ anon_vma_lock_write(vma->anon_vma); + + /* Somebody else might have raced and expanded it already */ + if (address < vma->vm_start) { +@@ -2266,7 +2261,7 @@ int expand_downwards(struct vm_area_stru + * updates, but we only hold a shared mmap_sem + * lock here, so we need to protect against + * concurrent vma expansions. +- * vma_lock_anon_vma() doesn't help here, as ++ * anon_vma_lock_write() doesn't help here, as + * we don't guarantee that all growable vmas + * in a mm share the same root anon vma. + * So, we reuse mm->page_table_lock to guard +@@ -2288,7 +2283,7 @@ int expand_downwards(struct vm_area_stru + } + } + } +- vma_unlock_anon_vma(vma); ++ anon_vma_unlock_write(vma->anon_vma); + khugepaged_enter_vma_merge(vma, vma->vm_flags); + validate_mm(mm); + return error; +@@ -2673,12 +2668,29 @@ SYSCALL_DEFINE5(remap_file_pages, unsign + if (!vma || !(vma->vm_flags & VM_SHARED)) + goto out; + +- if (start < vma->vm_start || start + size > vma->vm_end) ++ if (start < vma->vm_start) + goto out; + +- if (pgoff == linear_page_index(vma, start)) { +- ret = 0; +- goto out; ++ if (start + size > vma->vm_end) { ++ struct vm_area_struct *next; ++ ++ for (next = vma->vm_next; next; next = next->vm_next) { ++ /* hole between vmas ? */ ++ if (next->vm_start != next->vm_prev->vm_end) ++ goto out; ++ ++ if (next->vm_file != vma->vm_file) ++ goto out; ++ ++ if (next->vm_flags != vma->vm_flags) ++ goto out; ++ ++ if (start + size <= next->vm_end) ++ break; ++ } ++ ++ if (!next) ++ goto out; + } + + prot |= vma->vm_flags & VM_READ ? PROT_READ : 0; +@@ -2688,9 +2700,16 @@ SYSCALL_DEFINE5(remap_file_pages, unsign + flags &= MAP_NONBLOCK; + flags |= MAP_SHARED | MAP_FIXED | MAP_POPULATE; + if (vma->vm_flags & VM_LOCKED) { ++ struct vm_area_struct *tmp; + flags |= MAP_LOCKED; ++ + /* drop PG_Mlocked flag for over-mapped range */ +- munlock_vma_pages_range(vma, start, start + size); ++ for (tmp = vma; tmp->vm_start >= start + size; ++ tmp = tmp->vm_next) { ++ munlock_vma_pages_range(tmp, ++ max(tmp->vm_start, start), ++ min(tmp->vm_end, start + size)); ++ } + } + + file = get_file(vma->vm_file); +diff -druNp --no-dereference linux-libre-4.4-gnu/mm/page_alloc.c linux-libre-4.4.7-gnu/mm/page_alloc.c +--- linux-libre-4.4-gnu/mm/page_alloc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/mm/page_alloc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -662,34 +662,28 @@ static inline void __free_one_page(struc + unsigned long combined_idx; + unsigned long uninitialized_var(buddy_idx); + struct page *buddy; +- unsigned int max_order = MAX_ORDER; ++ unsigned int max_order; ++ ++ max_order = min_t(unsigned int, MAX_ORDER, pageblock_order + 1); + + VM_BUG_ON(!zone_is_initialized(zone)); + VM_BUG_ON_PAGE(page->flags & PAGE_FLAGS_CHECK_AT_PREP, page); + + VM_BUG_ON(migratetype == -1); +- if (is_migrate_isolate(migratetype)) { +- /* +- * We restrict max order of merging to prevent merge +- * between freepages on isolate pageblock and normal +- * pageblock. Without this, pageblock isolation +- * could cause incorrect freepage accounting. +- */ +- max_order = min_t(unsigned int, MAX_ORDER, pageblock_order + 1); +- } else { ++ if (likely(!is_migrate_isolate(migratetype))) + __mod_zone_freepage_state(zone, 1 << order, migratetype); +- } + +- page_idx = pfn & ((1 << max_order) - 1); ++ page_idx = pfn & ((1 << MAX_ORDER) - 1); + + VM_BUG_ON_PAGE(page_idx & ((1 << order) - 1), page); + VM_BUG_ON_PAGE(bad_range(zone, page), page); + ++continue_merging: + while (order < max_order - 1) { + buddy_idx = __find_buddy_index(page_idx, order); + buddy = page + (buddy_idx - page_idx); + if (!page_is_buddy(page, buddy, order)) +- break; ++ goto done_merging; + /* + * Our buddy is free or it is CONFIG_DEBUG_PAGEALLOC guard page, + * merge with it and move up one order. +@@ -706,6 +700,32 @@ static inline void __free_one_page(struc + page_idx = combined_idx; + order++; + } ++ if (max_order < MAX_ORDER) { ++ /* If we are here, it means order is >= pageblock_order. ++ * We want to prevent merge between freepages on isolate ++ * pageblock and normal pageblock. Without this, pageblock ++ * isolation could cause incorrect freepage or CMA accounting. ++ * ++ * We don't want to hit this code for the more frequent ++ * low-order merging. ++ */ ++ if (unlikely(has_isolate_pageblock(zone))) { ++ int buddy_mt; ++ ++ buddy_idx = __find_buddy_index(page_idx, order); ++ buddy = page + (buddy_idx - page_idx); ++ buddy_mt = get_pageblock_migratetype(buddy); ++ ++ if (migratetype != buddy_mt ++ && (is_migrate_isolate(migratetype) || ++ is_migrate_isolate(buddy_mt))) ++ goto done_merging; ++ } ++ max_order++; ++ goto continue_merging; ++ } ++ ++done_merging: + set_page_order(page, order); + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/mm/pgtable-generic.c linux-libre-4.4.7-gnu/mm/pgtable-generic.c +--- linux-libre-4.4-gnu/mm/pgtable-generic.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/mm/pgtable-generic.c 2016-04-12 12:09:26.000000000 -0400 +@@ -210,7 +210,9 @@ pmd_t pmdp_collapse_flush(struct vm_area + VM_BUG_ON(address & ~HPAGE_PMD_MASK); + VM_BUG_ON(pmd_trans_huge(*pmdp)); + pmd = pmdp_huge_get_and_clear(vma->vm_mm, address, pmdp); +- flush_pmd_tlb_range(vma, address, address + HPAGE_PMD_SIZE); ++ ++ /* collapse entails shooting down ptes not pmd */ ++ flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE); + return pmd; + } + #endif +diff -druNp --no-dereference linux-libre-4.4-gnu/mm/process_vm_access.c linux-libre-4.4.7-gnu/mm/process_vm_access.c +--- linux-libre-4.4-gnu/mm/process_vm_access.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/mm/process_vm_access.c 2016-04-12 12:09:26.000000000 -0400 +@@ -194,7 +194,7 @@ static ssize_t process_vm_rw_core(pid_t + goto free_proc_pages; + } + +- mm = mm_access(task, PTRACE_MODE_ATTACH); ++ mm = mm_access(task, PTRACE_MODE_ATTACH_REALCREDS); + if (!mm || IS_ERR(mm)) { + rc = IS_ERR(mm) ? PTR_ERR(mm) : -ESRCH; + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/mm/shmem.c linux-libre-4.4.7-gnu/mm/shmem.c +--- linux-libre-4.4-gnu/mm/shmem.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/mm/shmem.c 2016-04-12 12:09:26.000000000 -0400 +@@ -620,8 +620,7 @@ static void shmem_evict_inode(struct ino + list_del_init(&info->swaplist); + mutex_unlock(&shmem_swaplist_mutex); + } +- } else +- kfree(info->symlink); ++ } + + simple_xattrs_free(&info->xattrs); + WARN_ON(inode->i_blocks); +@@ -2462,13 +2461,12 @@ static int shmem_symlink(struct inode *d + info = SHMEM_I(inode); + inode->i_size = len-1; + if (len <= SHORT_SYMLINK_LEN) { +- info->symlink = kmemdup(symname, len, GFP_KERNEL); +- if (!info->symlink) { ++ inode->i_link = kmemdup(symname, len, GFP_KERNEL); ++ if (!inode->i_link) { + iput(inode); + return -ENOMEM; + } + inode->i_op = &shmem_short_symlink_operations; +- inode->i_link = info->symlink; + } else { + error = shmem_getpage(inode, 0, &page, SGP_WRITE, NULL); + if (error) { +@@ -3083,6 +3081,7 @@ static struct inode *shmem_alloc_inode(s + static void shmem_destroy_callback(struct rcu_head *head) + { + struct inode *inode = container_of(head, struct inode, i_rcu); ++ kfree(inode->i_link); + kmem_cache_free(shmem_inode_cachep, SHMEM_I(inode)); + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/mm/zsmalloc.c linux-libre-4.4.7-gnu/mm/zsmalloc.c +--- linux-libre-4.4-gnu/mm/zsmalloc.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/mm/zsmalloc.c 2016-04-12 12:09:26.000000000 -0400 +@@ -309,7 +309,12 @@ static void free_handle(struct zs_pool * + + static void record_obj(unsigned long handle, unsigned long obj) + { +- *(unsigned long *)handle = obj; ++ /* ++ * lsb of @obj represents handle lock while other bits ++ * represent object value the handle is pointing so ++ * updating shouldn't do store tearing. ++ */ ++ WRITE_ONCE(*(unsigned long *)handle, obj); + } + + /* zpool driver */ +@@ -1635,6 +1640,13 @@ static int migrate_zspage(struct zs_pool + free_obj = obj_malloc(d_page, class, handle); + zs_object_copy(free_obj, used_obj, class); + index++; ++ /* ++ * record_obj updates handle's value to free_obj and it will ++ * invalidate lock bit(ie, HANDLE_PIN_BIT) of handle, which ++ * breaks synchronization using pin_tag(e,g, zs_free) so ++ * let's keep the lock bit. ++ */ ++ free_obj |= BIT(HANDLE_PIN_BIT); + record_obj(handle, free_obj); + unpin_tag(handle); + obj_free(pool, class, used_obj); +diff -druNp --no-dereference linux-libre-4.4-gnu/net/batman-adv/bridge_loop_avoidance.c linux-libre-4.4.7-gnu/net/batman-adv/bridge_loop_avoidance.c +--- linux-libre-4.4-gnu/net/batman-adv/bridge_loop_avoidance.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/batman-adv/bridge_loop_avoidance.c 2016-04-12 12:09:26.000000000 -0400 +@@ -127,21 +127,17 @@ batadv_backbone_gw_free_ref(struct batad + } + + /* finally deinitialize the claim */ +-static void batadv_claim_free_rcu(struct rcu_head *rcu) ++static void batadv_claim_release(struct batadv_bla_claim *claim) + { +- struct batadv_bla_claim *claim; +- +- claim = container_of(rcu, struct batadv_bla_claim, rcu); +- + batadv_backbone_gw_free_ref(claim->backbone_gw); +- kfree(claim); ++ kfree_rcu(claim, rcu); + } + + /* free a claim, call claim_free_rcu if its the last reference */ + static void batadv_claim_free_ref(struct batadv_bla_claim *claim) + { + if (atomic_dec_and_test(&claim->refcount)) +- call_rcu(&claim->rcu, batadv_claim_free_rcu); ++ batadv_claim_release(claim); + } + + /** +diff -druNp --no-dereference linux-libre-4.4-gnu/net/batman-adv/hard-interface.h linux-libre-4.4.7-gnu/net/batman-adv/hard-interface.h +--- linux-libre-4.4-gnu/net/batman-adv/hard-interface.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/batman-adv/hard-interface.h 2016-04-12 12:09:26.000000000 -0400 +@@ -75,18 +75,6 @@ batadv_hardif_free_ref(struct batadv_har + call_rcu(&hard_iface->rcu, batadv_hardif_free_rcu); + } + +-/** +- * batadv_hardif_free_ref_now - decrement the hard interface refcounter and +- * possibly free it (without rcu callback) +- * @hard_iface: the hard interface to free +- */ +-static inline void +-batadv_hardif_free_ref_now(struct batadv_hard_iface *hard_iface) +-{ +- if (atomic_dec_and_test(&hard_iface->refcount)) +- batadv_hardif_free_rcu(&hard_iface->rcu); +-} +- + static inline struct batadv_hard_iface * + batadv_primary_if_get_selected(struct batadv_priv *bat_priv) + { +diff -druNp --no-dereference linux-libre-4.4-gnu/net/batman-adv/network-coding.c linux-libre-4.4.7-gnu/net/batman-adv/network-coding.c +--- linux-libre-4.4-gnu/net/batman-adv/network-coding.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/batman-adv/network-coding.c 2016-04-12 12:09:26.000000000 -0400 +@@ -203,28 +203,25 @@ void batadv_nc_init_orig(struct batadv_o + } + + /** +- * batadv_nc_node_free_rcu - rcu callback to free an nc node and remove +- * its refcount on the orig_node +- * @rcu: rcu pointer of the nc node ++ * batadv_nc_node_release - release nc_node from lists and queue for free after ++ * rcu grace period ++ * @nc_node: the nc node to free + */ +-static void batadv_nc_node_free_rcu(struct rcu_head *rcu) ++static void batadv_nc_node_release(struct batadv_nc_node *nc_node) + { +- struct batadv_nc_node *nc_node; +- +- nc_node = container_of(rcu, struct batadv_nc_node, rcu); + batadv_orig_node_free_ref(nc_node->orig_node); +- kfree(nc_node); ++ kfree_rcu(nc_node, rcu); + } + + /** +- * batadv_nc_node_free_ref - decrements the nc node refcounter and possibly +- * frees it ++ * batadv_nc_node_free_ref - decrement the nc node refcounter and possibly ++ * release it + * @nc_node: the nc node to free + */ + static void batadv_nc_node_free_ref(struct batadv_nc_node *nc_node) + { + if (atomic_dec_and_test(&nc_node->refcount)) +- call_rcu(&nc_node->rcu, batadv_nc_node_free_rcu); ++ batadv_nc_node_release(nc_node); + } + + /** +diff -druNp --no-dereference linux-libre-4.4-gnu/net/batman-adv/originator.c linux-libre-4.4.7-gnu/net/batman-adv/originator.c +--- linux-libre-4.4-gnu/net/batman-adv/originator.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/batman-adv/originator.c 2016-04-12 12:09:26.000000000 -0400 +@@ -163,92 +163,66 @@ err: + } + + /** +- * batadv_neigh_ifinfo_free_rcu - free the neigh_ifinfo object +- * @rcu: rcu pointer of the neigh_ifinfo object +- */ +-static void batadv_neigh_ifinfo_free_rcu(struct rcu_head *rcu) +-{ +- struct batadv_neigh_ifinfo *neigh_ifinfo; +- +- neigh_ifinfo = container_of(rcu, struct batadv_neigh_ifinfo, rcu); +- +- if (neigh_ifinfo->if_outgoing != BATADV_IF_DEFAULT) +- batadv_hardif_free_ref_now(neigh_ifinfo->if_outgoing); +- +- kfree(neigh_ifinfo); +-} +- +-/** +- * batadv_neigh_ifinfo_free_now - decrement the refcounter and possibly free +- * the neigh_ifinfo (without rcu callback) ++ * batadv_neigh_ifinfo_release - release neigh_ifinfo from lists and queue for ++ * free after rcu grace period + * @neigh_ifinfo: the neigh_ifinfo object to release + */ + static void +-batadv_neigh_ifinfo_free_ref_now(struct batadv_neigh_ifinfo *neigh_ifinfo) ++batadv_neigh_ifinfo_release(struct batadv_neigh_ifinfo *neigh_ifinfo) + { +- if (atomic_dec_and_test(&neigh_ifinfo->refcount)) +- batadv_neigh_ifinfo_free_rcu(&neigh_ifinfo->rcu); ++ if (neigh_ifinfo->if_outgoing != BATADV_IF_DEFAULT) ++ batadv_hardif_free_ref(neigh_ifinfo->if_outgoing); ++ ++ kfree_rcu(neigh_ifinfo, rcu); + } + + /** +- * batadv_neigh_ifinfo_free_ref - decrement the refcounter and possibly free ++ * batadv_neigh_ifinfo_free_ref - decrement the refcounter and possibly release + * the neigh_ifinfo + * @neigh_ifinfo: the neigh_ifinfo object to release + */ + void batadv_neigh_ifinfo_free_ref(struct batadv_neigh_ifinfo *neigh_ifinfo) + { + if (atomic_dec_and_test(&neigh_ifinfo->refcount)) +- call_rcu(&neigh_ifinfo->rcu, batadv_neigh_ifinfo_free_rcu); ++ batadv_neigh_ifinfo_release(neigh_ifinfo); + } + + /** + * batadv_neigh_node_free_rcu - free the neigh_node +- * @rcu: rcu pointer of the neigh_node ++ * batadv_neigh_node_release - release neigh_node from lists and queue for ++ * free after rcu grace period ++ * @neigh_node: neigh neighbor to free + */ +-static void batadv_neigh_node_free_rcu(struct rcu_head *rcu) ++static void batadv_neigh_node_release(struct batadv_neigh_node *neigh_node) + { + struct hlist_node *node_tmp; +- struct batadv_neigh_node *neigh_node; + struct batadv_neigh_ifinfo *neigh_ifinfo; + struct batadv_algo_ops *bao; + +- neigh_node = container_of(rcu, struct batadv_neigh_node, rcu); + bao = neigh_node->orig_node->bat_priv->bat_algo_ops; + + hlist_for_each_entry_safe(neigh_ifinfo, node_tmp, + &neigh_node->ifinfo_list, list) { +- batadv_neigh_ifinfo_free_ref_now(neigh_ifinfo); ++ batadv_neigh_ifinfo_free_ref(neigh_ifinfo); + } + + if (bao->bat_neigh_free) + bao->bat_neigh_free(neigh_node); + +- batadv_hardif_free_ref_now(neigh_node->if_incoming); +- +- kfree(neigh_node); +-} ++ batadv_hardif_free_ref(neigh_node->if_incoming); + +-/** +- * batadv_neigh_node_free_ref_now - decrement the neighbors refcounter +- * and possibly free it (without rcu callback) +- * @neigh_node: neigh neighbor to free +- */ +-static void +-batadv_neigh_node_free_ref_now(struct batadv_neigh_node *neigh_node) +-{ +- if (atomic_dec_and_test(&neigh_node->refcount)) +- batadv_neigh_node_free_rcu(&neigh_node->rcu); ++ kfree_rcu(neigh_node, rcu); + } + + /** + * batadv_neigh_node_free_ref - decrement the neighbors refcounter +- * and possibly free it ++ * and possibly release it + * @neigh_node: neigh neighbor to free + */ + void batadv_neigh_node_free_ref(struct batadv_neigh_node *neigh_node) + { + if (atomic_dec_and_test(&neigh_node->refcount)) +- call_rcu(&neigh_node->rcu, batadv_neigh_node_free_rcu); ++ batadv_neigh_node_release(neigh_node); + } + + /** +@@ -532,108 +506,99 @@ out: + } + + /** +- * batadv_orig_ifinfo_free_rcu - free the orig_ifinfo object +- * @rcu: rcu pointer of the orig_ifinfo object ++ * batadv_orig_ifinfo_release - release orig_ifinfo from lists and queue for ++ * free after rcu grace period ++ * @orig_ifinfo: the orig_ifinfo object to release + */ +-static void batadv_orig_ifinfo_free_rcu(struct rcu_head *rcu) ++static void batadv_orig_ifinfo_release(struct batadv_orig_ifinfo *orig_ifinfo) + { +- struct batadv_orig_ifinfo *orig_ifinfo; + struct batadv_neigh_node *router; + +- orig_ifinfo = container_of(rcu, struct batadv_orig_ifinfo, rcu); +- + if (orig_ifinfo->if_outgoing != BATADV_IF_DEFAULT) +- batadv_hardif_free_ref_now(orig_ifinfo->if_outgoing); ++ batadv_hardif_free_ref(orig_ifinfo->if_outgoing); + + /* this is the last reference to this object */ + router = rcu_dereference_protected(orig_ifinfo->router, true); + if (router) +- batadv_neigh_node_free_ref_now(router); +- kfree(orig_ifinfo); ++ batadv_neigh_node_free_ref(router); ++ ++ kfree_rcu(orig_ifinfo, rcu); + } + + /** +- * batadv_orig_ifinfo_free_ref - decrement the refcounter and possibly free +- * the orig_ifinfo (without rcu callback) ++ * batadv_orig_ifinfo_free_ref - decrement the refcounter and possibly release ++ * the orig_ifinfo + * @orig_ifinfo: the orig_ifinfo object to release + */ +-static void +-batadv_orig_ifinfo_free_ref_now(struct batadv_orig_ifinfo *orig_ifinfo) ++void batadv_orig_ifinfo_free_ref(struct batadv_orig_ifinfo *orig_ifinfo) + { + if (atomic_dec_and_test(&orig_ifinfo->refcount)) +- batadv_orig_ifinfo_free_rcu(&orig_ifinfo->rcu); ++ batadv_orig_ifinfo_release(orig_ifinfo); + } + + /** +- * batadv_orig_ifinfo_free_ref - decrement the refcounter and possibly free +- * the orig_ifinfo +- * @orig_ifinfo: the orig_ifinfo object to release ++ * batadv_orig_node_free_rcu - free the orig_node ++ * @rcu: rcu pointer of the orig_node + */ +-void batadv_orig_ifinfo_free_ref(struct batadv_orig_ifinfo *orig_ifinfo) ++static void batadv_orig_node_free_rcu(struct rcu_head *rcu) + { +- if (atomic_dec_and_test(&orig_ifinfo->refcount)) +- call_rcu(&orig_ifinfo->rcu, batadv_orig_ifinfo_free_rcu); ++ struct batadv_orig_node *orig_node; ++ ++ orig_node = container_of(rcu, struct batadv_orig_node, rcu); ++ ++ batadv_mcast_purge_orig(orig_node); ++ ++ batadv_frag_purge_orig(orig_node, NULL); ++ ++ if (orig_node->bat_priv->bat_algo_ops->bat_orig_free) ++ orig_node->bat_priv->bat_algo_ops->bat_orig_free(orig_node); ++ ++ kfree(orig_node->tt_buff); ++ kfree(orig_node); + } + +-static void batadv_orig_node_free_rcu(struct rcu_head *rcu) ++/** ++ * batadv_orig_node_release - release orig_node from lists and queue for ++ * free after rcu grace period ++ * @orig_node: the orig node to free ++ */ ++static void batadv_orig_node_release(struct batadv_orig_node *orig_node) + { + struct hlist_node *node_tmp; + struct batadv_neigh_node *neigh_node; +- struct batadv_orig_node *orig_node; + struct batadv_orig_ifinfo *orig_ifinfo; + +- orig_node = container_of(rcu, struct batadv_orig_node, rcu); +- + spin_lock_bh(&orig_node->neigh_list_lock); + + /* for all neighbors towards this originator ... */ + hlist_for_each_entry_safe(neigh_node, node_tmp, + &orig_node->neigh_list, list) { + hlist_del_rcu(&neigh_node->list); +- batadv_neigh_node_free_ref_now(neigh_node); ++ batadv_neigh_node_free_ref(neigh_node); + } + + hlist_for_each_entry_safe(orig_ifinfo, node_tmp, + &orig_node->ifinfo_list, list) { + hlist_del_rcu(&orig_ifinfo->list); +- batadv_orig_ifinfo_free_ref_now(orig_ifinfo); ++ batadv_orig_ifinfo_free_ref(orig_ifinfo); + } + spin_unlock_bh(&orig_node->neigh_list_lock); + +- batadv_mcast_purge_orig(orig_node); +- + /* Free nc_nodes */ + batadv_nc_purge_orig(orig_node->bat_priv, orig_node, NULL); + +- batadv_frag_purge_orig(orig_node, NULL); +- +- if (orig_node->bat_priv->bat_algo_ops->bat_orig_free) +- orig_node->bat_priv->bat_algo_ops->bat_orig_free(orig_node); +- +- kfree(orig_node->tt_buff); +- kfree(orig_node); ++ call_rcu(&orig_node->rcu, batadv_orig_node_free_rcu); + } + + /** + * batadv_orig_node_free_ref - decrement the orig node refcounter and possibly +- * schedule an rcu callback for freeing it ++ * release it + * @orig_node: the orig node to free + */ + void batadv_orig_node_free_ref(struct batadv_orig_node *orig_node) + { + if (atomic_dec_and_test(&orig_node->refcount)) +- call_rcu(&orig_node->rcu, batadv_orig_node_free_rcu); +-} +- +-/** +- * batadv_orig_node_free_ref_now - decrement the orig node refcounter and +- * possibly free it (without rcu callback) +- * @orig_node: the orig node to free +- */ +-void batadv_orig_node_free_ref_now(struct batadv_orig_node *orig_node) +-{ +- if (atomic_dec_and_test(&orig_node->refcount)) +- batadv_orig_node_free_rcu(&orig_node->rcu); ++ batadv_orig_node_release(orig_node); + } + + void batadv_originator_free(struct batadv_priv *bat_priv) +diff -druNp --no-dereference linux-libre-4.4-gnu/net/batman-adv/originator.h linux-libre-4.4.7-gnu/net/batman-adv/originator.h +--- linux-libre-4.4-gnu/net/batman-adv/originator.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/batman-adv/originator.h 2016-04-12 12:09:26.000000000 -0400 +@@ -38,7 +38,6 @@ int batadv_originator_init(struct batadv + void batadv_originator_free(struct batadv_priv *bat_priv); + void batadv_purge_orig_ref(struct batadv_priv *bat_priv); + void batadv_orig_node_free_ref(struct batadv_orig_node *orig_node); +-void batadv_orig_node_free_ref_now(struct batadv_orig_node *orig_node); + struct batadv_orig_node *batadv_orig_node_new(struct batadv_priv *bat_priv, + const u8 *addr); + struct batadv_neigh_node * +diff -druNp --no-dereference linux-libre-4.4-gnu/net/batman-adv/translation-table.c linux-libre-4.4.7-gnu/net/batman-adv/translation-table.c +--- linux-libre-4.4-gnu/net/batman-adv/translation-table.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/batman-adv/translation-table.c 2016-04-12 12:09:26.000000000 -0400 +@@ -240,20 +240,6 @@ int batadv_tt_global_hash_count(struct b + return count; + } + +-static void batadv_tt_orig_list_entry_free_rcu(struct rcu_head *rcu) +-{ +- struct batadv_tt_orig_list_entry *orig_entry; +- +- orig_entry = container_of(rcu, struct batadv_tt_orig_list_entry, rcu); +- +- /* We are in an rcu callback here, therefore we cannot use +- * batadv_orig_node_free_ref() and its call_rcu(): +- * An rcu_barrier() wouldn't wait for that to finish +- */ +- batadv_orig_node_free_ref_now(orig_entry->orig_node); +- kfree(orig_entry); +-} +- + /** + * batadv_tt_local_size_mod - change the size by v of the local table identified + * by vid +@@ -349,13 +335,25 @@ static void batadv_tt_global_size_dec(st + batadv_tt_global_size_mod(orig_node, vid, -1); + } + ++/** ++ * batadv_tt_orig_list_entry_release - release tt orig entry from lists and ++ * queue for free after rcu grace period ++ * @orig_entry: tt orig entry to be free'd ++ */ ++static void ++batadv_tt_orig_list_entry_release(struct batadv_tt_orig_list_entry *orig_entry) ++{ ++ batadv_orig_node_free_ref(orig_entry->orig_node); ++ kfree_rcu(orig_entry, rcu); ++} ++ + static void + batadv_tt_orig_list_entry_free_ref(struct batadv_tt_orig_list_entry *orig_entry) + { + if (!atomic_dec_and_test(&orig_entry->refcount)) + return; + +- call_rcu(&orig_entry->rcu, batadv_tt_orig_list_entry_free_rcu); ++ batadv_tt_orig_list_entry_release(orig_entry); + } + + /** +diff -druNp --no-dereference linux-libre-4.4-gnu/net/bluetooth/6lowpan.c linux-libre-4.4.7-gnu/net/bluetooth/6lowpan.c +--- linux-libre-4.4-gnu/net/bluetooth/6lowpan.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/bluetooth/6lowpan.c 2016-04-12 12:09:26.000000000 -0400 +@@ -307,6 +307,9 @@ static int recv_pkt(struct sk_buff *skb, + + /* check that it's our buffer */ + if (lowpan_is_ipv6(*skb_network_header(skb))) { ++ /* Pull off the 1-byte of 6lowpan header. */ ++ skb_pull(skb, 1); ++ + /* Copy the packet so that the IPv6 header is + * properly aligned. + */ +@@ -317,6 +320,7 @@ static int recv_pkt(struct sk_buff *skb, + + local_skb->protocol = htons(ETH_P_IPV6); + local_skb->pkt_type = PACKET_HOST; ++ local_skb->dev = dev; + + skb_set_transport_header(local_skb, sizeof(struct ipv6hdr)); + +@@ -335,6 +339,8 @@ static int recv_pkt(struct sk_buff *skb, + if (!local_skb) + goto drop; + ++ local_skb->dev = dev; ++ + ret = iphc_decompress(local_skb, dev, chan); + if (ret < 0) { + kfree_skb(local_skb); +@@ -343,7 +349,6 @@ static int recv_pkt(struct sk_buff *skb, + + local_skb->protocol = htons(ETH_P_IPV6); + local_skb->pkt_type = PACKET_HOST; +- local_skb->dev = dev; + + if (give_skb_to_upper(local_skb, dev) + != NET_RX_SUCCESS) { +diff -druNp --no-dereference linux-libre-4.4-gnu/net/bluetooth/hci_conn.c linux-libre-4.4.7-gnu/net/bluetooth/hci_conn.c +--- linux-libre-4.4-gnu/net/bluetooth/hci_conn.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/bluetooth/hci_conn.c 2016-04-12 12:09:26.000000000 -0400 +@@ -722,8 +722,12 @@ static void hci_req_add_le_create_conn(s + if (hci_update_random_address(req, false, &own_addr_type)) + return; + ++ /* Set window to be the same value as the interval to enable ++ * continuous scanning. ++ */ + cp.scan_interval = cpu_to_le16(hdev->le_scan_interval); +- cp.scan_window = cpu_to_le16(hdev->le_scan_window); ++ cp.scan_window = cp.scan_interval; ++ + bacpy(&cp.peer_addr, &conn->dst); + cp.peer_addr_type = conn->dst_type; + cp.own_address_type = own_addr_type; +diff -druNp --no-dereference linux-libre-4.4-gnu/net/bluetooth/hci_request.c linux-libre-4.4.7-gnu/net/bluetooth/hci_request.c +--- linux-libre-4.4-gnu/net/bluetooth/hci_request.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/bluetooth/hci_request.c 2016-04-12 12:09:26.000000000 -0400 +@@ -175,21 +175,29 @@ static u8 update_white_list(struct hci_r + * command to remove it from the controller. + */ + list_for_each_entry(b, &hdev->le_white_list, list) { +- struct hci_cp_le_del_from_white_list cp; ++ /* If the device is neither in pend_le_conns nor ++ * pend_le_reports then remove it from the whitelist. ++ */ ++ if (!hci_pend_le_action_lookup(&hdev->pend_le_conns, ++ &b->bdaddr, b->bdaddr_type) && ++ !hci_pend_le_action_lookup(&hdev->pend_le_reports, ++ &b->bdaddr, b->bdaddr_type)) { ++ struct hci_cp_le_del_from_white_list cp; + +- if (hci_pend_le_action_lookup(&hdev->pend_le_conns, +- &b->bdaddr, b->bdaddr_type) || +- hci_pend_le_action_lookup(&hdev->pend_le_reports, +- &b->bdaddr, b->bdaddr_type)) { +- white_list_entries++; ++ cp.bdaddr_type = b->bdaddr_type; ++ bacpy(&cp.bdaddr, &b->bdaddr); ++ ++ hci_req_add(req, HCI_OP_LE_DEL_FROM_WHITE_LIST, ++ sizeof(cp), &cp); + continue; + } + +- cp.bdaddr_type = b->bdaddr_type; +- bacpy(&cp.bdaddr, &b->bdaddr); ++ if (hci_find_irk_by_addr(hdev, &b->bdaddr, b->bdaddr_type)) { ++ /* White list can not be used with RPAs */ ++ return 0x00; ++ } + +- hci_req_add(req, HCI_OP_LE_DEL_FROM_WHITE_LIST, +- sizeof(cp), &cp); ++ white_list_entries++; + } + + /* Since all no longer valid white list entries have been +diff -druNp --no-dereference linux-libre-4.4-gnu/net/bluetooth/mgmt.c linux-libre-4.4.7-gnu/net/bluetooth/mgmt.c +--- linux-libre-4.4-gnu/net/bluetooth/mgmt.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/bluetooth/mgmt.c 2016-04-12 12:09:26.000000000 -0400 +@@ -7155,6 +7155,10 @@ static int add_advertising(struct sock * + return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING, + status); + ++ if (data_len != sizeof(*cp) + cp->adv_data_len + cp->scan_rsp_len) ++ return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING, ++ MGMT_STATUS_INVALID_PARAMS); ++ + flags = __le32_to_cpu(cp->flags); + timeout = __le16_to_cpu(cp->timeout); + duration = __le16_to_cpu(cp->duration); +diff -druNp --no-dereference linux-libre-4.4-gnu/net/bluetooth/smp.c linux-libre-4.4.7-gnu/net/bluetooth/smp.c +--- linux-libre-4.4-gnu/net/bluetooth/smp.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/bluetooth/smp.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1072,22 +1072,6 @@ static void smp_notify_keys(struct l2cap + hcon->dst_type = smp->remote_irk->addr_type; + queue_work(hdev->workqueue, &conn->id_addr_update_work); + } +- +- /* When receiving an indentity resolving key for +- * a remote device that does not use a resolvable +- * private address, just remove the key so that +- * it is possible to use the controller white +- * list for scanning. +- * +- * Userspace will have been told to not store +- * this key at this point. So it is safe to +- * just remove it. +- */ +- if (!bacmp(&smp->remote_irk->rpa, BDADDR_ANY)) { +- list_del_rcu(&smp->remote_irk->list); +- kfree_rcu(smp->remote_irk, rcu); +- smp->remote_irk = NULL; +- } + } + + if (smp->csrk) { +diff -druNp --no-dereference linux-libre-4.4-gnu/net/bridge/br.c linux-libre-4.4.7-gnu/net/bridge/br.c +--- linux-libre-4.4-gnu/net/bridge/br.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/bridge/br.c 2016-04-12 12:09:26.000000000 -0400 +@@ -121,6 +121,7 @@ static struct notifier_block br_device_n + .notifier_call = br_device_event + }; + ++/* called with RTNL */ + static int br_switchdev_event(struct notifier_block *unused, + unsigned long event, void *ptr) + { +@@ -130,7 +131,6 @@ static int br_switchdev_event(struct not + struct switchdev_notifier_fdb_info *fdb_info; + int err = NOTIFY_DONE; + +- rtnl_lock(); + p = br_port_get_rtnl(dev); + if (!p) + goto out; +@@ -155,7 +155,6 @@ static int br_switchdev_event(struct not + } + + out: +- rtnl_unlock(); + return err; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/net/bridge/br_device.c linux-libre-4.4.7-gnu/net/bridge/br_device.c +--- linux-libre-4.4-gnu/net/bridge/br_device.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/bridge/br_device.c 2016-04-12 12:09:26.000000000 -0400 +@@ -28,6 +28,8 @@ + const struct nf_br_ops __rcu *nf_br_ops __read_mostly; + EXPORT_SYMBOL_GPL(nf_br_ops); + ++static struct lock_class_key bridge_netdev_addr_lock_key; ++ + /* net device transmit always called with BH disabled */ + netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) + { +@@ -87,6 +89,11 @@ out: + return NETDEV_TX_OK; + } + ++static void br_set_lockdep_class(struct net_device *dev) ++{ ++ lockdep_set_class(&dev->addr_list_lock, &bridge_netdev_addr_lock_key); ++} ++ + static int br_dev_init(struct net_device *dev) + { + struct net_bridge *br = netdev_priv(dev); +@@ -99,6 +106,7 @@ static int br_dev_init(struct net_device + err = br_vlan_init(br); + if (err) + free_percpu(br->stats); ++ br_set_lockdep_class(dev); + + return err; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ceph/messenger.c linux-libre-4.4.7-gnu/net/ceph/messenger.c +--- linux-libre-4.4-gnu/net/ceph/messenger.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ceph/messenger.c 2016-04-12 12:09:26.000000000 -0400 +@@ -672,6 +672,8 @@ static void reset_connection(struct ceph + } + con->in_seq = 0; + con->in_seq_acked = 0; ++ ++ con->out_skip = 0; + } + + /* +@@ -771,6 +773,8 @@ static u32 get_global_seq(struct ceph_me + + static void con_out_kvec_reset(struct ceph_connection *con) + { ++ BUG_ON(con->out_skip); ++ + con->out_kvec_left = 0; + con->out_kvec_bytes = 0; + con->out_kvec_cur = &con->out_kvec[0]; +@@ -779,9 +783,9 @@ static void con_out_kvec_reset(struct ce + static void con_out_kvec_add(struct ceph_connection *con, + size_t size, void *data) + { +- int index; ++ int index = con->out_kvec_left; + +- index = con->out_kvec_left; ++ BUG_ON(con->out_skip); + BUG_ON(index >= ARRAY_SIZE(con->out_kvec)); + + con->out_kvec[index].iov_len = size; +@@ -790,6 +794,27 @@ static void con_out_kvec_add(struct ceph + con->out_kvec_bytes += size; + } + ++/* ++ * Chop off a kvec from the end. Return residual number of bytes for ++ * that kvec, i.e. how many bytes would have been written if the kvec ++ * hadn't been nuked. ++ */ ++static int con_out_kvec_skip(struct ceph_connection *con) ++{ ++ int off = con->out_kvec_cur - con->out_kvec; ++ int skip = 0; ++ ++ if (con->out_kvec_bytes > 0) { ++ skip = con->out_kvec[off + con->out_kvec_left - 1].iov_len; ++ BUG_ON(con->out_kvec_bytes < skip); ++ BUG_ON(!con->out_kvec_left); ++ con->out_kvec_bytes -= skip; ++ con->out_kvec_left--; ++ } ++ ++ return skip; ++} ++ + #ifdef CONFIG_BLOCK + + /* +@@ -1175,6 +1200,13 @@ static bool ceph_msg_data_advance(struct + return new_piece; + } + ++static size_t sizeof_footer(struct ceph_connection *con) ++{ ++ return (con->peer_features & CEPH_FEATURE_MSG_AUTH) ? ++ sizeof(struct ceph_msg_footer) : ++ sizeof(struct ceph_msg_footer_old); ++} ++ + static void prepare_message_data(struct ceph_msg *msg, u32 data_len) + { + BUG_ON(!msg); +@@ -1197,7 +1229,6 @@ static void prepare_write_message_footer + m->footer.flags |= CEPH_MSG_FOOTER_COMPLETE; + + dout("prepare_write_message_footer %p\n", con); +- con->out_kvec_is_msg = true; + con->out_kvec[v].iov_base = &m->footer; + if (con->peer_features & CEPH_FEATURE_MSG_AUTH) { + if (con->ops->sign_message) +@@ -1225,7 +1256,6 @@ static void prepare_write_message(struct + u32 crc; + + con_out_kvec_reset(con); +- con->out_kvec_is_msg = true; + con->out_msg_done = false; + + /* Sneak an ack in there first? If we can get it into the same +@@ -1265,18 +1295,19 @@ static void prepare_write_message(struct + + /* tag + hdr + front + middle */ + con_out_kvec_add(con, sizeof (tag_msg), &tag_msg); +- con_out_kvec_add(con, sizeof (m->hdr), &m->hdr); ++ con_out_kvec_add(con, sizeof(con->out_hdr), &con->out_hdr); + con_out_kvec_add(con, m->front.iov_len, m->front.iov_base); + + if (m->middle) + con_out_kvec_add(con, m->middle->vec.iov_len, + m->middle->vec.iov_base); + +- /* fill in crc (except data pages), footer */ ++ /* fill in hdr crc and finalize hdr */ + crc = crc32c(0, &m->hdr, offsetof(struct ceph_msg_header, crc)); + con->out_msg->hdr.crc = cpu_to_le32(crc); +- con->out_msg->footer.flags = 0; ++ memcpy(&con->out_hdr, &con->out_msg->hdr, sizeof(con->out_hdr)); + ++ /* fill in front and middle crc, footer */ + crc = crc32c(0, m->front.iov_base, m->front.iov_len); + con->out_msg->footer.front_crc = cpu_to_le32(crc); + if (m->middle) { +@@ -1288,6 +1319,7 @@ static void prepare_write_message(struct + dout("%s front_crc %u middle_crc %u\n", __func__, + le32_to_cpu(con->out_msg->footer.front_crc), + le32_to_cpu(con->out_msg->footer.middle_crc)); ++ con->out_msg->footer.flags = 0; + + /* is there a data payload? */ + con->out_msg->footer.data_crc = 0; +@@ -1492,7 +1524,6 @@ static int write_partial_kvec(struct cep + } + } + con->out_kvec_left = 0; +- con->out_kvec_is_msg = false; + ret = 1; + out: + dout("write_partial_kvec %p %d left in %d kvecs ret = %d\n", con, +@@ -1584,6 +1615,7 @@ static int write_partial_skip(struct cep + { + int ret; + ++ dout("%s %p %d left\n", __func__, con, con->out_skip); + while (con->out_skip > 0) { + size_t size = min(con->out_skip, (int) PAGE_CACHE_SIZE); + +@@ -2313,9 +2345,9 @@ static int read_partial_message(struct c + ceph_pr_addr(&con->peer_addr.in_addr), + seq, con->in_seq + 1); + con->in_base_pos = -front_len - middle_len - data_len - +- sizeof(m->footer); ++ sizeof_footer(con); + con->in_tag = CEPH_MSGR_TAG_READY; +- return 0; ++ return 1; + } else if ((s64)seq - (s64)con->in_seq > 1) { + pr_err("read_partial_message bad seq %lld expected %lld\n", + seq, con->in_seq + 1); +@@ -2338,10 +2370,10 @@ static int read_partial_message(struct c + /* skip this message */ + dout("alloc_msg said skip message\n"); + con->in_base_pos = -front_len - middle_len - data_len - +- sizeof(m->footer); ++ sizeof_footer(con); + con->in_tag = CEPH_MSGR_TAG_READY; + con->in_seq++; +- return 0; ++ return 1; + } + + BUG_ON(!con->in_msg); +@@ -2506,13 +2538,13 @@ more: + + more_kvec: + /* kvec data queued? */ +- if (con->out_skip) { +- ret = write_partial_skip(con); ++ if (con->out_kvec_left) { ++ ret = write_partial_kvec(con); + if (ret <= 0) + goto out; + } +- if (con->out_kvec_left) { +- ret = write_partial_kvec(con); ++ if (con->out_skip) { ++ ret = write_partial_skip(con); + if (ret <= 0) + goto out; + } +@@ -3050,16 +3082,31 @@ void ceph_msg_revoke(struct ceph_msg *ms + ceph_msg_put(msg); + } + if (con->out_msg == msg) { +- dout("%s %p msg %p - was sending\n", __func__, con, msg); +- con->out_msg = NULL; +- if (con->out_kvec_is_msg) { +- con->out_skip = con->out_kvec_bytes; +- con->out_kvec_is_msg = false; ++ BUG_ON(con->out_skip); ++ /* footer */ ++ if (con->out_msg_done) { ++ con->out_skip += con_out_kvec_skip(con); ++ } else { ++ BUG_ON(!msg->data_length); ++ if (con->peer_features & CEPH_FEATURE_MSG_AUTH) ++ con->out_skip += sizeof(msg->footer); ++ else ++ con->out_skip += sizeof(msg->old_footer); + } +- msg->hdr.seq = 0; ++ /* data, middle, front */ ++ if (msg->data_length) ++ con->out_skip += msg->cursor.total_resid; ++ if (msg->middle) ++ con->out_skip += con_out_kvec_skip(con); ++ con->out_skip += con_out_kvec_skip(con); + ++ dout("%s %p msg %p - was sending, will write %d skip %d\n", ++ __func__, con, msg, con->out_kvec_bytes, con->out_skip); ++ msg->hdr.seq = 0; ++ con->out_msg = NULL; + ceph_msg_put(msg); + } ++ + mutex_unlock(&con->mutex); + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ceph/osd_client.c linux-libre-4.4.7-gnu/net/ceph/osd_client.c +--- linux-libre-4.4-gnu/net/ceph/osd_client.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ceph/osd_client.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2843,8 +2843,8 @@ static struct ceph_msg *get_reply(struct + mutex_lock(&osdc->request_mutex); + req = __lookup_request(osdc, tid); + if (!req) { +- pr_warn("%s osd%d tid %llu unknown, skipping\n", +- __func__, osd->o_osd, tid); ++ dout("%s osd%d tid %llu unknown, skipping\n", __func__, ++ osd->o_osd, tid); + m = NULL; + *skip = 1; + goto out; +diff -druNp --no-dereference linux-libre-4.4-gnu/net/core/dev.c linux-libre-4.4.7-gnu/net/core/dev.c +--- linux-libre-4.4-gnu/net/core/dev.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/core/dev.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2542,6 +2542,8 @@ static inline bool skb_needs_check(struc + * + * It may return NULL if the skb requires no segmentation. This is + * only possible when GSO is used for verifying header integrity. ++ * ++ * Segmentation preserves SKB_SGO_CB_OFFSET bytes of previous skb cb. + */ + struct sk_buff *__skb_gso_segment(struct sk_buff *skb, + netdev_features_t features, bool tx_path) +@@ -2556,6 +2558,9 @@ struct sk_buff *__skb_gso_segment(struct + return ERR_PTR(err); + } + ++ BUILD_BUG_ON(SKB_SGO_CB_OFFSET + ++ sizeof(*SKB_GSO_CB(skb)) > sizeof(skb->cb)); ++ + SKB_GSO_CB(skb)->mac_offset = skb_headroom(skb); + SKB_GSO_CB(skb)->encap_level = 0; + +@@ -4140,6 +4145,7 @@ static void gro_list_prepare(struct napi + + diffs = (unsigned long)p->dev ^ (unsigned long)skb->dev; + diffs |= p->vlan_tci ^ skb->vlan_tci; ++ diffs |= skb_metadata_dst_cmp(p, skb); + if (maclen == ETH_HLEN) + diffs |= compare_ether_header(skb_mac_header(p), + skb_mac_header(skb)); +@@ -4337,10 +4343,12 @@ static gro_result_t napi_skb_finish(gro_ + break; + + case GRO_MERGED_FREE: +- if (NAPI_GRO_CB(skb)->free == NAPI_GRO_FREE_STOLEN_HEAD) ++ if (NAPI_GRO_CB(skb)->free == NAPI_GRO_FREE_STOLEN_HEAD) { ++ skb_dst_drop(skb); + kmem_cache_free(skbuff_head_cache, skb); +- else ++ } else { + __kfree_skb(skb); ++ } + break; + + case GRO_HELD: +@@ -7120,8 +7128,10 @@ struct net_device *alloc_netdev_mqs(int + dev->priv_flags = IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM; + setup(dev); + +- if (!dev->tx_queue_len) ++ if (!dev->tx_queue_len) { + dev->priv_flags |= IFF_NO_QUEUE; ++ dev->tx_queue_len = 1; ++ } + + dev->num_tx_queues = txqs; + dev->real_num_tx_queues = txqs; +diff -druNp --no-dereference linux-libre-4.4-gnu/net/core/filter.c linux-libre-4.4.7-gnu/net/core/filter.c +--- linux-libre-4.4-gnu/net/core/filter.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/core/filter.c 2016-04-12 12:09:26.000000000 -0400 +@@ -777,6 +777,11 @@ static int bpf_check_classic(const struc + if (ftest->k == 0) + return -EINVAL; + break; ++ case BPF_ALU | BPF_LSH | BPF_K: ++ case BPF_ALU | BPF_RSH | BPF_K: ++ if (ftest->k >= 32) ++ return -EINVAL; ++ break; + case BPF_LD | BPF_MEM: + case BPF_LDX | BPF_MEM: + case BPF_ST: +diff -druNp --no-dereference linux-libre-4.4-gnu/net/core/flow_dissector.c linux-libre-4.4.7-gnu/net/core/flow_dissector.c +--- linux-libre-4.4-gnu/net/core/flow_dissector.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/core/flow_dissector.c 2016-04-12 12:09:26.000000000 -0400 +@@ -208,7 +208,6 @@ ip: + case htons(ETH_P_IPV6): { + const struct ipv6hdr *iph; + struct ipv6hdr _iph; +- __be32 flow_label; + + ipv6: + iph = __skb_header_pointer(skb, nhoff, sizeof(_iph), data, hlen, &_iph); +@@ -230,8 +229,12 @@ ipv6: + key_control->addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; + } + +- flow_label = ip6_flowlabel(iph); +- if (flow_label) { ++ if ((dissector_uses_key(flow_dissector, ++ FLOW_DISSECTOR_KEY_FLOW_LABEL) || ++ (flags & FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL)) && ++ ip6_flowlabel(iph)) { ++ __be32 flow_label = ip6_flowlabel(iph); ++ + if (dissector_uses_key(flow_dissector, + FLOW_DISSECTOR_KEY_FLOW_LABEL)) { + key_tags = skb_flow_dissector_target(flow_dissector, +@@ -396,6 +399,13 @@ ip_proto_again: + goto out_bad; + proto = eth->h_proto; + nhoff += sizeof(*eth); ++ ++ /* Cap headers that we access via pointers at the ++ * end of the Ethernet header as our maximum alignment ++ * at that point is only 2 bytes. ++ */ ++ if (NET_IP_ALIGN) ++ hlen = nhoff; + } + + key_control->flags |= FLOW_DIS_ENCAPSULATION; +diff -druNp --no-dereference linux-libre-4.4-gnu/net/core/pktgen.c linux-libre-4.4.7-gnu/net/core/pktgen.c +--- linux-libre-4.4-gnu/net/core/pktgen.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/core/pktgen.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2787,7 +2787,9 @@ static struct sk_buff *pktgen_alloc_skb( + } else { + skb = __netdev_alloc_skb(dev, size, GFP_NOWAIT); + } +- skb_reserve(skb, LL_RESERVED_SPACE(dev)); ++ ++ if (likely(skb)) ++ skb_reserve(skb, LL_RESERVED_SPACE(dev)); + + return skb; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/net/core/scm.c linux-libre-4.4.7-gnu/net/core/scm.c +--- linux-libre-4.4-gnu/net/core/scm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/core/scm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -87,6 +87,7 @@ static int scm_fp_copy(struct cmsghdr *c + *fplp = fpl; + fpl->count = 0; + fpl->max = SCM_MAX_FD; ++ fpl->user = NULL; + } + fpp = &fpl->fp[fpl->count]; + +@@ -107,6 +108,10 @@ static int scm_fp_copy(struct cmsghdr *c + *fpp++ = file; + fpl->count++; + } ++ ++ if (!fpl->user) ++ fpl->user = get_uid(current_user()); ++ + return num; + } + +@@ -119,6 +124,7 @@ void __scm_destroy(struct scm_cookie *sc + scm->fp = NULL; + for (i=fpl->count-1; i>=0; i--) + fput(fpl->fp[i]); ++ free_uid(fpl->user); + kfree(fpl); + } + } +@@ -336,6 +342,7 @@ struct scm_fp_list *scm_fp_dup(struct sc + for (i = 0; i < fpl->count; i++) + get_file(fpl->fp[i]); + new_fpl->max = new_fpl->count; ++ new_fpl->user = get_uid(fpl->user); + } + return new_fpl; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/net/core/skbuff.c linux-libre-4.4.7-gnu/net/core/skbuff.c +--- linux-libre-4.4-gnu/net/core/skbuff.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/core/skbuff.c 2016-04-12 12:09:26.000000000 -0400 +@@ -79,6 +79,8 @@ + + struct kmem_cache *skbuff_head_cache __read_mostly; + static struct kmem_cache *skbuff_fclone_cache __read_mostly; ++int sysctl_max_skb_frags __read_mostly = MAX_SKB_FRAGS; ++EXPORT_SYMBOL(sysctl_max_skb_frags); + + /** + * skb_panic - private function for out-of-line support +diff -druNp --no-dereference linux-libre-4.4-gnu/net/core/sysctl_net_core.c linux-libre-4.4.7-gnu/net/core/sysctl_net_core.c +--- linux-libre-4.4-gnu/net/core/sysctl_net_core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/core/sysctl_net_core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -26,6 +26,7 @@ static int zero = 0; + static int one = 1; + static int min_sndbuf = SOCK_MIN_SNDBUF; + static int min_rcvbuf = SOCK_MIN_RCVBUF; ++static int max_skb_frags = MAX_SKB_FRAGS; + + static int net_msg_warn; /* Unused, but still a sysctl */ + +@@ -392,6 +393,15 @@ static struct ctl_table net_core_table[] + .mode = 0644, + .proc_handler = proc_dointvec + }, ++ { ++ .procname = "max_skb_frags", ++ .data = &sysctl_max_skb_frags, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = proc_dointvec_minmax, ++ .extra1 = &one, ++ .extra2 = &max_skb_frags, ++ }, + { } + }; + +diff -druNp --no-dereference linux-libre-4.4-gnu/net/dccp/ipv4.c linux-libre-4.4.7-gnu/net/dccp/ipv4.c +--- linux-libre-4.4-gnu/net/dccp/ipv4.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/dccp/ipv4.c 2016-04-12 12:09:26.000000000 -0400 +@@ -824,26 +824,26 @@ lookup: + + if (sk->sk_state == DCCP_NEW_SYN_RECV) { + struct request_sock *req = inet_reqsk(sk); +- struct sock *nsk = NULL; ++ struct sock *nsk; + + sk = req->rsk_listener; +- if (likely(sk->sk_state == DCCP_LISTEN)) { +- nsk = dccp_check_req(sk, skb, req); +- } else { ++ if (unlikely(sk->sk_state != DCCP_LISTEN)) { + inet_csk_reqsk_queue_drop_and_put(sk, req); + goto lookup; + } ++ sock_hold(sk); ++ nsk = dccp_check_req(sk, skb, req); + if (!nsk) { + reqsk_put(req); +- goto discard_it; ++ goto discard_and_relse; + } + if (nsk == sk) { +- sock_hold(sk); + reqsk_put(req); + } else if (dccp_child_process(sk, nsk, skb)) { + dccp_v4_ctl_send_reset(sk, skb); +- goto discard_it; ++ goto discard_and_relse; + } else { ++ sock_put(sk); + return 0; + } + } +diff -druNp --no-dereference linux-libre-4.4-gnu/net/dccp/ipv6.c linux-libre-4.4.7-gnu/net/dccp/ipv6.c +--- linux-libre-4.4-gnu/net/dccp/ipv6.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/dccp/ipv6.c 2016-04-12 12:09:26.000000000 -0400 +@@ -691,26 +691,26 @@ lookup: + + if (sk->sk_state == DCCP_NEW_SYN_RECV) { + struct request_sock *req = inet_reqsk(sk); +- struct sock *nsk = NULL; ++ struct sock *nsk; + + sk = req->rsk_listener; +- if (likely(sk->sk_state == DCCP_LISTEN)) { +- nsk = dccp_check_req(sk, skb, req); +- } else { ++ if (unlikely(sk->sk_state != DCCP_LISTEN)) { + inet_csk_reqsk_queue_drop_and_put(sk, req); + goto lookup; + } ++ sock_hold(sk); ++ nsk = dccp_check_req(sk, skb, req); + if (!nsk) { + reqsk_put(req); +- goto discard_it; ++ goto discard_and_relse; + } + if (nsk == sk) { +- sock_hold(sk); + reqsk_put(req); + } else if (dccp_child_process(sk, nsk, skb)) { + dccp_v6_ctl_send_reset(sk, skb); +- goto discard_it; ++ goto discard_and_relse; + } else { ++ sock_put(sk); + return 0; + } + } +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv4/devinet.c linux-libre-4.4.7-gnu/net/ipv4/devinet.c +--- linux-libre-4.4-gnu/net/ipv4/devinet.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv4/devinet.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1847,7 +1847,7 @@ static int inet_netconf_get_devconf(stru + if (err < 0) + goto errout; + +- err = EINVAL; ++ err = -EINVAL; + if (!tb[NETCONFA_IFINDEX]) + goto errout; + +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv4/inet_connection_sock.c linux-libre-4.4.7-gnu/net/ipv4/inet_connection_sock.c +--- linux-libre-4.4-gnu/net/ipv4/inet_connection_sock.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv4/inet_connection_sock.c 2016-04-12 12:09:26.000000000 -0400 +@@ -789,14 +789,16 @@ static void inet_child_forget(struct soc + reqsk_put(req); + } + +-void inet_csk_reqsk_queue_add(struct sock *sk, struct request_sock *req, +- struct sock *child) ++struct sock *inet_csk_reqsk_queue_add(struct sock *sk, ++ struct request_sock *req, ++ struct sock *child) + { + struct request_sock_queue *queue = &inet_csk(sk)->icsk_accept_queue; + + spin_lock(&queue->rskq_lock); + if (unlikely(sk->sk_state != TCP_LISTEN)) { + inet_child_forget(sk, req, child); ++ child = NULL; + } else { + req->sk = child; + req->dl_next = NULL; +@@ -808,6 +810,7 @@ void inet_csk_reqsk_queue_add(struct soc + sk_acceptq_added(sk); + } + spin_unlock(&queue->rskq_lock); ++ return child; + } + EXPORT_SYMBOL(inet_csk_reqsk_queue_add); + +@@ -817,11 +820,8 @@ struct sock *inet_csk_complete_hashdance + if (own_req) { + inet_csk_reqsk_queue_drop(sk, req); + reqsk_queue_removed(&inet_csk(sk)->icsk_accept_queue, req); +- inet_csk_reqsk_queue_add(sk, req, child); +- /* Warning: caller must not call reqsk_put(req); +- * child stole last reference on it. +- */ +- return child; ++ if (inet_csk_reqsk_queue_add(sk, req, child)) ++ return child; + } + /* Too bad, another child took ownership of the request, undo. */ + bh_unlock_sock(child); +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv4/ip_fragment.c linux-libre-4.4.7-gnu/net/ipv4/ip_fragment.c +--- linux-libre-4.4-gnu/net/ipv4/ip_fragment.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv4/ip_fragment.c 2016-04-12 12:09:26.000000000 -0400 +@@ -661,6 +661,7 @@ int ip_defrag(struct net *net, struct sk + struct ipq *qp; + + IP_INC_STATS_BH(net, IPSTATS_MIB_REASMREQDS); ++ skb_orphan(skb); + + /* Lookup (or create) queue header */ + qp = ip_find(net, ip_hdr(skb), user, vif); +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv4/ip_output.c linux-libre-4.4.7-gnu/net/ipv4/ip_output.c +--- linux-libre-4.4-gnu/net/ipv4/ip_output.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv4/ip_output.c 2016-04-12 12:09:26.000000000 -0400 +@@ -240,6 +240,7 @@ static int ip_finish_output_gso(struct n + * from host network stack. + */ + features = netif_skb_features(skb); ++ BUILD_BUG_ON(sizeof(*IPCB(skb)) > SKB_SGO_CB_OFFSET); + segs = skb_gso_segment(skb, features & ~NETIF_F_GSO_MASK); + if (IS_ERR_OR_NULL(segs)) { + kfree_skb(skb); +@@ -921,7 +922,7 @@ static int __ip_append_data(struct sock + if (((length > mtu) || (skb && skb_is_gso(skb))) && + (sk->sk_protocol == IPPROTO_UDP) && + (rt->dst.dev->features & NETIF_F_UFO) && !rt->dst.header_len && +- (sk->sk_type == SOCK_DGRAM)) { ++ (sk->sk_type == SOCK_DGRAM) && !sk->sk_no_check_tx) { + err = ip_ufo_append_data(sk, queue, getfrag, from, length, + hh_len, fragheaderlen, transhdrlen, + maxfraglen, flags); +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv4/ip_sockglue.c linux-libre-4.4.7-gnu/net/ipv4/ip_sockglue.c +--- linux-libre-4.4-gnu/net/ipv4/ip_sockglue.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv4/ip_sockglue.c 2016-04-12 12:09:26.000000000 -0400 +@@ -249,6 +249,8 @@ int ip_cmsg_send(struct net *net, struct + switch (cmsg->cmsg_type) { + case IP_RETOPTS: + err = cmsg->cmsg_len - CMSG_ALIGN(sizeof(struct cmsghdr)); ++ ++ /* Our caller is responsible for freeing ipc->opt */ + err = ip_options_get(net, &ipc->opt, CMSG_DATA(cmsg), + err < 40 ? err : 40); + if (err) +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv4/netfilter/nf_defrag_ipv4.c linux-libre-4.4.7-gnu/net/ipv4/netfilter/nf_defrag_ipv4.c +--- linux-libre-4.4-gnu/net/ipv4/netfilter/nf_defrag_ipv4.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv4/netfilter/nf_defrag_ipv4.c 2016-04-12 12:09:26.000000000 -0400 +@@ -27,8 +27,6 @@ static int nf_ct_ipv4_gather_frags(struc + { + int err; + +- skb_orphan(skb); +- + local_bh_disable(); + err = ip_defrag(net, skb, user); + local_bh_enable(); +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv4/ping.c linux-libre-4.4.7-gnu/net/ipv4/ping.c +--- linux-libre-4.4-gnu/net/ipv4/ping.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv4/ping.c 2016-04-12 12:09:26.000000000 -0400 +@@ -746,8 +746,10 @@ static int ping_v4_sendmsg(struct sock * + + if (msg->msg_controllen) { + err = ip_cmsg_send(sock_net(sk), msg, &ipc, false); +- if (err) ++ if (unlikely(err)) { ++ kfree(ipc.opt); + return err; ++ } + if (ipc.opt) + free = 1; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv4/raw.c linux-libre-4.4.7-gnu/net/ipv4/raw.c +--- linux-libre-4.4-gnu/net/ipv4/raw.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv4/raw.c 2016-04-12 12:09:26.000000000 -0400 +@@ -547,8 +547,10 @@ static int raw_sendmsg(struct sock *sk, + + if (msg->msg_controllen) { + err = ip_cmsg_send(net, msg, &ipc, false); +- if (err) ++ if (unlikely(err)) { ++ kfree(ipc.opt); + goto out; ++ } + if (ipc.opt) + free = 1; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv4/route.c linux-libre-4.4.7-gnu/net/ipv4/route.c +--- linux-libre-4.4-gnu/net/ipv4/route.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv4/route.c 2016-04-12 12:09:26.000000000 -0400 +@@ -129,6 +129,7 @@ static int ip_rt_mtu_expires __read_most + static int ip_rt_min_pmtu __read_mostly = 512 + 20 + 20; + static int ip_rt_min_advmss __read_mostly = 256; + ++static int ip_rt_gc_timeout __read_mostly = RT_GC_TIMEOUT; + /* + * Interface to generic destination cache. + */ +@@ -755,7 +756,7 @@ static void __ip_do_redirect(struct rtab + struct fib_nh *nh = &FIB_RES_NH(res); + + update_or_create_fnhe(nh, fl4->daddr, new_gw, +- 0, 0); ++ 0, jiffies + ip_rt_gc_timeout); + } + if (kill_route) + rt->dst.obsolete = DST_OBSOLETE_KILL; +@@ -1556,6 +1557,36 @@ static void ip_handle_martian_source(str + #endif + } + ++static void ip_del_fnhe(struct fib_nh *nh, __be32 daddr) ++{ ++ struct fnhe_hash_bucket *hash; ++ struct fib_nh_exception *fnhe, __rcu **fnhe_p; ++ u32 hval = fnhe_hashfun(daddr); ++ ++ spin_lock_bh(&fnhe_lock); ++ ++ hash = rcu_dereference_protected(nh->nh_exceptions, ++ lockdep_is_held(&fnhe_lock)); ++ hash += hval; ++ ++ fnhe_p = &hash->chain; ++ fnhe = rcu_dereference_protected(*fnhe_p, lockdep_is_held(&fnhe_lock)); ++ while (fnhe) { ++ if (fnhe->fnhe_daddr == daddr) { ++ rcu_assign_pointer(*fnhe_p, rcu_dereference_protected( ++ fnhe->fnhe_next, lockdep_is_held(&fnhe_lock))); ++ fnhe_flush_routes(fnhe); ++ kfree_rcu(fnhe, rcu); ++ break; ++ } ++ fnhe_p = &fnhe->fnhe_next; ++ fnhe = rcu_dereference_protected(fnhe->fnhe_next, ++ lockdep_is_held(&fnhe_lock)); ++ } ++ ++ spin_unlock_bh(&fnhe_lock); ++} ++ + /* called in rcu_read_lock() section */ + static int __mkroute_input(struct sk_buff *skb, + const struct fib_result *res, +@@ -1609,11 +1640,20 @@ static int __mkroute_input(struct sk_buf + + fnhe = find_exception(&FIB_RES_NH(*res), daddr); + if (do_cache) { +- if (fnhe) ++ if (fnhe) { + rth = rcu_dereference(fnhe->fnhe_rth_input); +- else +- rth = rcu_dereference(FIB_RES_NH(*res).nh_rth_input); ++ if (rth && rth->dst.expires && ++ time_after(jiffies, rth->dst.expires)) { ++ ip_del_fnhe(&FIB_RES_NH(*res), daddr); ++ fnhe = NULL; ++ } else { ++ goto rt_cache; ++ } ++ } ++ ++ rth = rcu_dereference(FIB_RES_NH(*res).nh_rth_input); + ++rt_cache: + if (rt_cache_valid(rth)) { + skb_dst_set_noref(skb, &rth->dst); + goto out; +@@ -2014,19 +2054,29 @@ static struct rtable *__mkroute_output(c + struct fib_nh *nh = &FIB_RES_NH(*res); + + fnhe = find_exception(nh, fl4->daddr); +- if (fnhe) ++ if (fnhe) { + prth = &fnhe->fnhe_rth_output; +- else { +- if (unlikely(fl4->flowi4_flags & +- FLOWI_FLAG_KNOWN_NH && +- !(nh->nh_gw && +- nh->nh_scope == RT_SCOPE_LINK))) { +- do_cache = false; +- goto add; ++ rth = rcu_dereference(*prth); ++ if (rth && rth->dst.expires && ++ time_after(jiffies, rth->dst.expires)) { ++ ip_del_fnhe(nh, fl4->daddr); ++ fnhe = NULL; ++ } else { ++ goto rt_cache; + } +- prth = raw_cpu_ptr(nh->nh_pcpu_rth_output); + } ++ ++ if (unlikely(fl4->flowi4_flags & ++ FLOWI_FLAG_KNOWN_NH && ++ !(nh->nh_gw && ++ nh->nh_scope == RT_SCOPE_LINK))) { ++ do_cache = false; ++ goto add; ++ } ++ prth = raw_cpu_ptr(nh->nh_pcpu_rth_output); + rth = rcu_dereference(*prth); ++ ++rt_cache: + if (rt_cache_valid(rth)) { + dst_hold(&rth->dst); + return rth; +@@ -2569,7 +2619,6 @@ void ip_rt_multicast_event(struct in_dev + } + + #ifdef CONFIG_SYSCTL +-static int ip_rt_gc_timeout __read_mostly = RT_GC_TIMEOUT; + static int ip_rt_gc_interval __read_mostly = 60 * HZ; + static int ip_rt_gc_min_interval __read_mostly = HZ / 2; + static int ip_rt_gc_elasticity __read_mostly = 8; +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv4/tcp.c linux-libre-4.4.7-gnu/net/ipv4/tcp.c +--- linux-libre-4.4-gnu/net/ipv4/tcp.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv4/tcp.c 2016-04-12 12:09:26.000000000 -0400 +@@ -279,6 +279,7 @@ + + #include <asm/uaccess.h> + #include <asm/ioctls.h> ++#include <asm/unaligned.h> + #include <net/busy_poll.h> + + int sysctl_tcp_fin_timeout __read_mostly = TCP_FIN_TIMEOUT; +@@ -938,7 +939,7 @@ new_segment: + + i = skb_shinfo(skb)->nr_frags; + can_coalesce = skb_can_coalesce(skb, i, page, offset); +- if (!can_coalesce && i >= MAX_SKB_FRAGS) { ++ if (!can_coalesce && i >= sysctl_max_skb_frags) { + tcp_mark_push(tp, skb); + goto new_segment; + } +@@ -1211,7 +1212,7 @@ new_segment: + + if (!skb_can_coalesce(skb, i, pfrag->page, + pfrag->offset)) { +- if (i == MAX_SKB_FRAGS || !sg) { ++ if (i == sysctl_max_skb_frags || !sg) { + tcp_mark_push(tp, skb); + goto new_segment; + } +@@ -2637,6 +2638,7 @@ void tcp_get_info(struct sock *sk, struc + const struct inet_connection_sock *icsk = inet_csk(sk); + u32 now = tcp_time_stamp; + unsigned int start; ++ u64 rate64; + u32 rate; + + memset(info, 0, sizeof(*info)); +@@ -2702,15 +2704,17 @@ void tcp_get_info(struct sock *sk, struc + info->tcpi_total_retrans = tp->total_retrans; + + rate = READ_ONCE(sk->sk_pacing_rate); +- info->tcpi_pacing_rate = rate != ~0U ? rate : ~0ULL; ++ rate64 = rate != ~0U ? rate : ~0ULL; ++ put_unaligned(rate64, &info->tcpi_pacing_rate); + + rate = READ_ONCE(sk->sk_max_pacing_rate); +- info->tcpi_max_pacing_rate = rate != ~0U ? rate : ~0ULL; ++ rate64 = rate != ~0U ? rate : ~0ULL; ++ put_unaligned(rate64, &info->tcpi_max_pacing_rate); + + do { + start = u64_stats_fetch_begin_irq(&tp->syncp); +- info->tcpi_bytes_acked = tp->bytes_acked; +- info->tcpi_bytes_received = tp->bytes_received; ++ put_unaligned(tp->bytes_acked, &info->tcpi_bytes_acked); ++ put_unaligned(tp->bytes_received, &info->tcpi_bytes_received); + } while (u64_stats_fetch_retry_irq(&tp->syncp, start)); + info->tcpi_segs_out = tp->segs_out; + info->tcpi_segs_in = tp->segs_in; +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv4/tcp_ipv4.c linux-libre-4.4.7-gnu/net/ipv4/tcp_ipv4.c +--- linux-libre-4.4-gnu/net/ipv4/tcp_ipv4.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv4/tcp_ipv4.c 2016-04-12 12:09:26.000000000 -0400 +@@ -312,7 +312,7 @@ static void do_redirect(struct sk_buff * + + + /* handle ICMP messages on TCP_NEW_SYN_RECV request sockets */ +-void tcp_req_err(struct sock *sk, u32 seq) ++void tcp_req_err(struct sock *sk, u32 seq, bool abort) + { + struct request_sock *req = inet_reqsk(sk); + struct net *net = sock_net(sk); +@@ -324,7 +324,7 @@ void tcp_req_err(struct sock *sk, u32 se + + if (seq != tcp_rsk(req)->snt_isn) { + NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS); +- } else { ++ } else if (abort) { + /* + * Still in SYN_RECV, just remove it silently. + * There is no good way to pass the error to the newly +@@ -384,7 +384,12 @@ void tcp_v4_err(struct sk_buff *icmp_skb + } + seq = ntohl(th->seq); + if (sk->sk_state == TCP_NEW_SYN_RECV) +- return tcp_req_err(sk, seq); ++ return tcp_req_err(sk, seq, ++ type == ICMP_PARAMETERPROB || ++ type == ICMP_TIME_EXCEEDED || ++ (type == ICMP_DEST_UNREACH && ++ (code == ICMP_NET_UNREACH || ++ code == ICMP_HOST_UNREACH))); + + bh_lock_sock(sk); + /* If too many ICMPs get dropped on busy +@@ -705,7 +710,8 @@ release_sk1: + outside socket context is ugly, certainly. What can I do? + */ + +-static void tcp_v4_send_ack(struct sk_buff *skb, u32 seq, u32 ack, ++static void tcp_v4_send_ack(struct net *net, ++ struct sk_buff *skb, u32 seq, u32 ack, + u32 win, u32 tsval, u32 tsecr, int oif, + struct tcp_md5sig_key *key, + int reply_flags, u8 tos) +@@ -720,7 +726,6 @@ static void tcp_v4_send_ack(struct sk_bu + ]; + } rep; + struct ip_reply_arg arg; +- struct net *net = dev_net(skb_dst(skb)->dev); + + memset(&rep.th, 0, sizeof(struct tcphdr)); + memset(&arg, 0, sizeof(arg)); +@@ -782,7 +787,8 @@ static void tcp_v4_timewait_ack(struct s + struct inet_timewait_sock *tw = inet_twsk(sk); + struct tcp_timewait_sock *tcptw = tcp_twsk(sk); + +- tcp_v4_send_ack(skb, tcptw->tw_snd_nxt, tcptw->tw_rcv_nxt, ++ tcp_v4_send_ack(sock_net(sk), skb, ++ tcptw->tw_snd_nxt, tcptw->tw_rcv_nxt, + tcptw->tw_rcv_wnd >> tw->tw_rcv_wscale, + tcp_time_stamp + tcptw->tw_ts_offset, + tcptw->tw_ts_recent, +@@ -801,8 +807,10 @@ static void tcp_v4_reqsk_send_ack(const + /* sk->sk_state == TCP_LISTEN -> for regular TCP_SYN_RECV + * sk->sk_state == TCP_SYN_RECV -> for Fast Open. + */ +- tcp_v4_send_ack(skb, (sk->sk_state == TCP_LISTEN) ? +- tcp_rsk(req)->snt_isn + 1 : tcp_sk(sk)->snd_nxt, ++ u32 seq = (sk->sk_state == TCP_LISTEN) ? tcp_rsk(req)->snt_isn + 1 : ++ tcp_sk(sk)->snd_nxt; ++ ++ tcp_v4_send_ack(sock_net(sk), skb, seq, + tcp_rsk(req)->rcv_nxt, req->rsk_rcv_wnd, + tcp_time_stamp, + req->ts_recent, +@@ -1586,28 +1594,30 @@ process: + + if (sk->sk_state == TCP_NEW_SYN_RECV) { + struct request_sock *req = inet_reqsk(sk); +- struct sock *nsk = NULL; ++ struct sock *nsk; + + sk = req->rsk_listener; +- if (tcp_v4_inbound_md5_hash(sk, skb)) +- goto discard_and_relse; +- if (likely(sk->sk_state == TCP_LISTEN)) { +- nsk = tcp_check_req(sk, skb, req, false); +- } else { ++ if (unlikely(tcp_v4_inbound_md5_hash(sk, skb))) { ++ reqsk_put(req); ++ goto discard_it; ++ } ++ if (unlikely(sk->sk_state != TCP_LISTEN)) { + inet_csk_reqsk_queue_drop_and_put(sk, req); + goto lookup; + } ++ sock_hold(sk); ++ nsk = tcp_check_req(sk, skb, req, false); + if (!nsk) { + reqsk_put(req); +- goto discard_it; ++ goto discard_and_relse; + } + if (nsk == sk) { +- sock_hold(sk); + reqsk_put(req); + } else if (tcp_child_process(sk, nsk, skb)) { + tcp_v4_send_reset(nsk, skb); +- goto discard_it; ++ goto discard_and_relse; + } else { ++ sock_put(sk); + return 0; + } + } +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv4/tcp_yeah.c linux-libre-4.4.7-gnu/net/ipv4/tcp_yeah.c +--- linux-libre-4.4-gnu/net/ipv4/tcp_yeah.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv4/tcp_yeah.c 2016-04-12 12:09:26.000000000 -0400 +@@ -219,7 +219,7 @@ static u32 tcp_yeah_ssthresh(struct sock + yeah->fast_count = 0; + yeah->reno_count = max(yeah->reno_count>>1, 2U); + +- return tp->snd_cwnd - reduction; ++ return max_t(int, tp->snd_cwnd - reduction, 2); + } + + static struct tcp_congestion_ops tcp_yeah __read_mostly = { +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv4/udp.c linux-libre-4.4.7-gnu/net/ipv4/udp.c +--- linux-libre-4.4-gnu/net/ipv4/udp.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv4/udp.c 2016-04-12 12:09:26.000000000 -0400 +@@ -966,8 +966,10 @@ int udp_sendmsg(struct sock *sk, struct + if (msg->msg_controllen) { + err = ip_cmsg_send(sock_net(sk), msg, &ipc, + sk->sk_family == AF_INET6); +- if (err) ++ if (unlikely(err)) { ++ kfree(ipc.opt); + return err; ++ } + if (ipc.opt) + free = 1; + connected = 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv6/addrconf.c linux-libre-4.4.7-gnu/net/ipv6/addrconf.c +--- linux-libre-4.4-gnu/net/ipv6/addrconf.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv6/addrconf.c 2016-04-12 12:09:26.000000000 -0400 +@@ -583,7 +583,7 @@ static int inet6_netconf_get_devconf(str + if (err < 0) + goto errout; + +- err = EINVAL; ++ err = -EINVAL; + if (!tb[NETCONFA_IFINDEX]) + goto errout; + +@@ -3506,6 +3506,7 @@ static void addrconf_dad_begin(struct in + { + struct inet6_dev *idev = ifp->idev; + struct net_device *dev = idev->dev; ++ bool notify = false; + + addrconf_join_solict(dev, &ifp->addr); + +@@ -3551,7 +3552,7 @@ static void addrconf_dad_begin(struct in + /* Because optimistic nodes can use this address, + * notify listeners. If DAD fails, RTM_DELADDR is sent. + */ +- ipv6_ifa_notify(RTM_NEWADDR, ifp); ++ notify = true; + } + } + +@@ -3559,6 +3560,8 @@ static void addrconf_dad_begin(struct in + out: + spin_unlock(&ifp->lock); + read_unlock_bh(&idev->lock); ++ if (notify) ++ ipv6_ifa_notify(RTM_NEWADDR, ifp); + } + + static void addrconf_dad_start(struct inet6_ifaddr *ifp) +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv6/datagram.c linux-libre-4.4.7-gnu/net/ipv6/datagram.c +--- linux-libre-4.4-gnu/net/ipv6/datagram.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv6/datagram.c 2016-04-12 12:09:26.000000000 -0400 +@@ -162,6 +162,9 @@ ipv4_connected: + fl6.fl6_dport = inet->inet_dport; + fl6.fl6_sport = inet->inet_sport; + ++ if (!fl6.flowi6_oif) ++ fl6.flowi6_oif = np->sticky_pktinfo.ipi6_ifindex; ++ + if (!fl6.flowi6_oif && (addr_type&IPV6_ADDR_MULTICAST)) + fl6.flowi6_oif = np->mcast_oif; + +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv6/ip6_flowlabel.c linux-libre-4.4.7-gnu/net/ipv6/ip6_flowlabel.c +--- linux-libre-4.4-gnu/net/ipv6/ip6_flowlabel.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv6/ip6_flowlabel.c 2016-04-12 12:09:26.000000000 -0400 +@@ -540,12 +540,13 @@ int ipv6_flowlabel_opt(struct sock *sk, + } + spin_lock_bh(&ip6_sk_fl_lock); + for (sflp = &np->ipv6_fl_list; +- (sfl = rcu_dereference(*sflp)) != NULL; ++ (sfl = rcu_dereference_protected(*sflp, ++ lockdep_is_held(&ip6_sk_fl_lock))) != NULL; + sflp = &sfl->next) { + if (sfl->fl->label == freq.flr_label) { + if (freq.flr_label == (np->flow_label&IPV6_FLOWLABEL_MASK)) + np->flow_label &= ~IPV6_FLOWLABEL_MASK; +- *sflp = rcu_dereference(sfl->next); ++ *sflp = sfl->next; + spin_unlock_bh(&ip6_sk_fl_lock); + fl_release(sfl->fl); + kfree_rcu(sfl, rcu); +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv6/ip6_output.c linux-libre-4.4.7-gnu/net/ipv6/ip6_output.c +--- linux-libre-4.4-gnu/net/ipv6/ip6_output.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv6/ip6_output.c 2016-04-12 12:09:26.000000000 -0400 +@@ -909,6 +909,7 @@ static int ip6_dst_lookup_tail(struct ne + struct rt6_info *rt; + #endif + int err; ++ int flags = 0; + + /* The correct way to handle this would be to do + * ip6_route_get_saddr, and then ip6_route_output; however, +@@ -940,10 +941,13 @@ static int ip6_dst_lookup_tail(struct ne + dst_release(*dst); + *dst = NULL; + } ++ ++ if (fl6->flowi6_oif) ++ flags |= RT6_LOOKUP_F_IFACE; + } + + if (!*dst) +- *dst = ip6_route_output(net, sk, fl6); ++ *dst = ip6_route_output_flags(net, sk, fl6, flags); + + err = (*dst)->error; + if (err) +@@ -1353,7 +1357,7 @@ emsgsize: + (skb && skb_is_gso(skb))) && + (sk->sk_protocol == IPPROTO_UDP) && + (rt->dst.dev->features & NETIF_F_UFO) && +- (sk->sk_type == SOCK_DGRAM)) { ++ (sk->sk_type == SOCK_DGRAM) && !udp_get_no_check6_tx(sk)) { + err = ip6_ufo_append_data(sk, queue, getfrag, from, length, + hh_len, fragheaderlen, + transhdrlen, mtu, flags, fl6); +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv6/route.c linux-libre-4.4.7-gnu/net/ipv6/route.c +--- linux-libre-4.4-gnu/net/ipv6/route.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv6/route.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1174,11 +1174,10 @@ static struct rt6_info *ip6_pol_route_ou + return ip6_pol_route(net, table, fl6->flowi6_oif, fl6, flags); + } + +-struct dst_entry *ip6_route_output(struct net *net, const struct sock *sk, +- struct flowi6 *fl6) ++struct dst_entry *ip6_route_output_flags(struct net *net, const struct sock *sk, ++ struct flowi6 *fl6, int flags) + { + struct dst_entry *dst; +- int flags = 0; + bool any_src; + + dst = l3mdev_rt6_dst_by_oif(net, fl6); +@@ -1199,7 +1198,7 @@ struct dst_entry *ip6_route_output(struc + + return fib6_rule_lookup(net, fl6, flags, ip6_pol_route_output); + } +-EXPORT_SYMBOL(ip6_route_output); ++EXPORT_SYMBOL_GPL(ip6_route_output_flags); + + struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_orig) + { +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv6/tcp_ipv6.c linux-libre-4.4.7-gnu/net/ipv6/tcp_ipv6.c +--- linux-libre-4.4-gnu/net/ipv6/tcp_ipv6.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv6/tcp_ipv6.c 2016-04-12 12:09:26.000000000 -0400 +@@ -328,6 +328,7 @@ static void tcp_v6_err(struct sk_buff *s + struct tcp_sock *tp; + __u32 seq, snd_una; + struct sock *sk; ++ bool fatal; + int err; + + sk = __inet6_lookup_established(net, &tcp_hashinfo, +@@ -346,8 +347,9 @@ static void tcp_v6_err(struct sk_buff *s + return; + } + seq = ntohl(th->seq); ++ fatal = icmpv6_err_convert(type, code, &err); + if (sk->sk_state == TCP_NEW_SYN_RECV) +- return tcp_req_err(sk, seq); ++ return tcp_req_err(sk, seq, fatal); + + bh_lock_sock(sk); + if (sock_owned_by_user(sk) && type != ICMPV6_PKT_TOOBIG) +@@ -401,7 +403,6 @@ static void tcp_v6_err(struct sk_buff *s + goto out; + } + +- icmpv6_err_convert(type, code, &err); + + /* Might be for an request_sock */ + switch (sk->sk_state) { +@@ -462,8 +463,10 @@ static int tcp_v6_send_synack(const stru + if (np->repflow && ireq->pktopts) + fl6->flowlabel = ip6_flowlabel(ipv6_hdr(ireq->pktopts)); + ++ rcu_read_lock(); + err = ip6_xmit(sk, skb, fl6, rcu_dereference(np->opt), + np->tclass); ++ rcu_read_unlock(); + err = net_xmit_eval(err); + } + +@@ -1385,7 +1388,7 @@ process: + + if (sk->sk_state == TCP_NEW_SYN_RECV) { + struct request_sock *req = inet_reqsk(sk); +- struct sock *nsk = NULL; ++ struct sock *nsk; + + sk = req->rsk_listener; + tcp_v6_fill_cb(skb, hdr, th); +@@ -1393,24 +1396,24 @@ process: + reqsk_put(req); + goto discard_it; + } +- if (likely(sk->sk_state == TCP_LISTEN)) { +- nsk = tcp_check_req(sk, skb, req, false); +- } else { ++ if (unlikely(sk->sk_state != TCP_LISTEN)) { + inet_csk_reqsk_queue_drop_and_put(sk, req); + goto lookup; + } ++ sock_hold(sk); ++ nsk = tcp_check_req(sk, skb, req, false); + if (!nsk) { + reqsk_put(req); +- goto discard_it; ++ goto discard_and_relse; + } + if (nsk == sk) { +- sock_hold(sk); + reqsk_put(req); + tcp_v6_restore_cb(skb); + } else if (tcp_child_process(sk, nsk, skb)) { + tcp_v6_send_reset(nsk, skb); +- goto discard_it; ++ goto discard_and_relse; + } else { ++ sock_put(sk); + return 0; + } + } +diff -druNp --no-dereference linux-libre-4.4-gnu/net/ipv6/xfrm6_mode_tunnel.c linux-libre-4.4.7-gnu/net/ipv6/xfrm6_mode_tunnel.c +--- linux-libre-4.4-gnu/net/ipv6/xfrm6_mode_tunnel.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/ipv6/xfrm6_mode_tunnel.c 2016-04-12 12:09:26.000000000 -0400 +@@ -23,7 +23,7 @@ static inline void ipip6_ecn_decapsulate + struct ipv6hdr *inner_iph = ipipv6_hdr(skb); + + if (INET_ECN_is_ce(XFRM_MODE_SKB_CB(skb)->tos)) +- IP6_ECN_set_ce(inner_iph); ++ IP6_ECN_set_ce(skb, inner_iph); + } + + /* Add encapsulation header. +diff -druNp --no-dereference linux-libre-4.4-gnu/net/iucv/af_iucv.c linux-libre-4.4.7-gnu/net/iucv/af_iucv.c +--- linux-libre-4.4-gnu/net/iucv/af_iucv.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/iucv/af_iucv.c 2016-04-12 12:09:26.000000000 -0400 +@@ -708,6 +708,9 @@ static int iucv_sock_bind(struct socket + if (!addr || addr->sa_family != AF_IUCV) + return -EINVAL; + ++ if (addr_len < sizeof(struct sockaddr_iucv)) ++ return -EINVAL; ++ + lock_sock(sk); + if (sk->sk_state != IUCV_OPEN) { + err = -EBADFD; +diff -druNp --no-dereference linux-libre-4.4-gnu/net/l2tp/l2tp_netlink.c linux-libre-4.4.7-gnu/net/l2tp/l2tp_netlink.c +--- linux-libre-4.4-gnu/net/l2tp/l2tp_netlink.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/l2tp/l2tp_netlink.c 2016-04-12 12:09:26.000000000 -0400 +@@ -124,8 +124,13 @@ static int l2tp_tunnel_notify(struct gen + ret = l2tp_nl_tunnel_send(msg, info->snd_portid, info->snd_seq, + NLM_F_ACK, tunnel, cmd); + +- if (ret >= 0) +- return genlmsg_multicast_allns(family, msg, 0, 0, GFP_ATOMIC); ++ if (ret >= 0) { ++ ret = genlmsg_multicast_allns(family, msg, 0, 0, GFP_ATOMIC); ++ /* We don't care if no one is listening */ ++ if (ret == -ESRCH) ++ ret = 0; ++ return ret; ++ } + + nlmsg_free(msg); + +@@ -147,8 +152,13 @@ static int l2tp_session_notify(struct ge + ret = l2tp_nl_session_send(msg, info->snd_portid, info->snd_seq, + NLM_F_ACK, session, cmd); + +- if (ret >= 0) +- return genlmsg_multicast_allns(family, msg, 0, 0, GFP_ATOMIC); ++ if (ret >= 0) { ++ ret = genlmsg_multicast_allns(family, msg, 0, 0, GFP_ATOMIC); ++ /* We don't care if no one is listening */ ++ if (ret == -ESRCH) ++ ret = 0; ++ return ret; ++ } + + nlmsg_free(msg); + +diff -druNp --no-dereference linux-libre-4.4-gnu/net/mac80211/agg-rx.c linux-libre-4.4.7-gnu/net/mac80211/agg-rx.c +--- linux-libre-4.4-gnu/net/mac80211/agg-rx.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/mac80211/agg-rx.c 2016-04-12 12:09:26.000000000 -0400 +@@ -291,7 +291,7 @@ void __ieee80211_start_rx_ba_session(str + } + + /* prepare A-MPDU MLME for Rx aggregation */ +- tid_agg_rx = kmalloc(sizeof(struct tid_ampdu_rx), GFP_KERNEL); ++ tid_agg_rx = kzalloc(sizeof(*tid_agg_rx), GFP_KERNEL); + if (!tid_agg_rx) + goto end; + +diff -druNp --no-dereference linux-libre-4.4-gnu/net/mac80211/ibss.c linux-libre-4.4.7-gnu/net/mac80211/ibss.c +--- linux-libre-4.4-gnu/net/mac80211/ibss.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/mac80211/ibss.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1732,7 +1732,6 @@ void ieee80211_ibss_notify_scan_complete + if (sdata->vif.type != NL80211_IFTYPE_ADHOC) + continue; + sdata->u.ibss.last_scan_completed = jiffies; +- ieee80211_queue_work(&local->hw, &sdata->work); + } + mutex_unlock(&local->iflist_mtx); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/net/mac80211/ieee80211_i.h linux-libre-4.4.7-gnu/net/mac80211/ieee80211_i.h +--- linux-libre-4.4-gnu/net/mac80211/ieee80211_i.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/mac80211/ieee80211_i.h 2016-04-12 12:09:26.000000000 -0400 +@@ -92,7 +92,7 @@ struct ieee80211_fragment_entry { + u16 extra_len; + u16 last_frag; + u8 rx_queue; +- bool ccmp; /* Whether fragments were encrypted with CCMP */ ++ bool check_sequential_pn; /* needed for CCMP/GCMP */ + u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ + }; + +diff -druNp --no-dereference linux-libre-4.4-gnu/net/mac80211/mesh.c linux-libre-4.4.7-gnu/net/mac80211/mesh.c +--- linux-libre-4.4-gnu/net/mac80211/mesh.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/mac80211/mesh.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1370,17 +1370,6 @@ out: + sdata_unlock(sdata); + } + +-void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local) +-{ +- struct ieee80211_sub_if_data *sdata; +- +- rcu_read_lock(); +- list_for_each_entry_rcu(sdata, &local->interfaces, list) +- if (ieee80211_vif_is_mesh(&sdata->vif) && +- ieee80211_sdata_running(sdata)) +- ieee80211_queue_work(&local->hw, &sdata->work); +- rcu_read_unlock(); +-} + + void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata) + { +diff -druNp --no-dereference linux-libre-4.4-gnu/net/mac80211/mesh.h linux-libre-4.4.7-gnu/net/mac80211/mesh.h +--- linux-libre-4.4-gnu/net/mac80211/mesh.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/mac80211/mesh.h 2016-04-12 12:09:26.000000000 -0400 +@@ -362,14 +362,10 @@ static inline bool mesh_path_sel_is_hwmp + return sdata->u.mesh.mesh_pp_id == IEEE80211_PATH_PROTOCOL_HWMP; + } + +-void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local); +- + void mesh_path_flush_by_iface(struct ieee80211_sub_if_data *sdata); + void mesh_sync_adjust_tbtt(struct ieee80211_sub_if_data *sdata); + void ieee80211s_stop(void); + #else +-static inline void +-ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local) {} + static inline bool mesh_path_sel_is_hwmp(struct ieee80211_sub_if_data *sdata) + { return false; } + static inline void mesh_path_flush_by_iface(struct ieee80211_sub_if_data *sdata) +diff -druNp --no-dereference linux-libre-4.4-gnu/net/mac80211/mlme.c linux-libre-4.4.7-gnu/net/mac80211/mlme.c +--- linux-libre-4.4-gnu/net/mac80211/mlme.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/mac80211/mlme.c 2016-04-12 12:09:26.000000000 -0400 +@@ -4003,8 +4003,6 @@ static void ieee80211_restart_sta_timer( + if (!ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) + ieee80211_queue_work(&sdata->local->hw, + &sdata->u.mgd.monitor_work); +- /* and do all the other regular work too */ +- ieee80211_queue_work(&sdata->local->hw, &sdata->work); + } + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/net/mac80211/rc80211_minstrel.c linux-libre-4.4.7-gnu/net/mac80211/rc80211_minstrel.c +--- linux-libre-4.4-gnu/net/mac80211/rc80211_minstrel.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/mac80211/rc80211_minstrel.c 2016-04-12 12:09:26.000000000 -0400 +@@ -711,7 +711,7 @@ static u32 minstrel_get_expected_through + * computing cur_tp + */ + tmp_mrs = &mi->r[idx].stats; +- tmp_cur_tp = minstrel_get_tp_avg(&mi->r[idx], tmp_mrs->prob_ewma); ++ tmp_cur_tp = minstrel_get_tp_avg(&mi->r[idx], tmp_mrs->prob_ewma) * 10; + tmp_cur_tp = tmp_cur_tp * 1200 * 8 / 1024; + + return tmp_cur_tp; +diff -druNp --no-dereference linux-libre-4.4-gnu/net/mac80211/rc80211_minstrel_ht.c linux-libre-4.4.7-gnu/net/mac80211/rc80211_minstrel_ht.c +--- linux-libre-4.4-gnu/net/mac80211/rc80211_minstrel_ht.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/mac80211/rc80211_minstrel_ht.c 2016-04-12 12:09:26.000000000 -0400 +@@ -691,7 +691,7 @@ minstrel_aggr_check(struct ieee80211_sta + if (likely(sta->ampdu_mlme.tid_tx[tid])) + return; + +- ieee80211_start_tx_ba_session(pubsta, tid, 5000); ++ ieee80211_start_tx_ba_session(pubsta, tid, 0); + } + + static void +@@ -871,7 +871,7 @@ minstrel_ht_set_rate(struct minstrel_pri + * - if station is in dynamic SMPS (and streams > 1) + * - for fallback rates, to increase chances of getting through + */ +- if (offset > 0 && ++ if (offset > 0 || + (mi->sta->smps_mode == IEEE80211_SMPS_DYNAMIC && + group->streams > 1)) { + ratetbl->rate[offset].count = ratetbl->rate[offset].count_rts; +@@ -1334,7 +1334,8 @@ static u32 minstrel_ht_get_expected_thro + prob = mi->groups[i].rates[j].prob_ewma; + + /* convert tp_avg from pkt per second in kbps */ +- tp_avg = minstrel_ht_get_tp_avg(mi, i, j, prob) * AVG_PKT_SIZE * 8 / 1024; ++ tp_avg = minstrel_ht_get_tp_avg(mi, i, j, prob) * 10; ++ tp_avg = tp_avg * AVG_PKT_SIZE * 8 / 1024; + + return tp_avg; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/net/mac80211/rx.c linux-libre-4.4.7-gnu/net/mac80211/rx.c +--- linux-libre-4.4-gnu/net/mac80211/rx.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/mac80211/rx.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1754,7 +1754,7 @@ ieee80211_reassemble_add(struct ieee8021 + entry->seq = seq; + entry->rx_queue = rx_queue; + entry->last_frag = frag; +- entry->ccmp = 0; ++ entry->check_sequential_pn = false; + entry->extra_len = 0; + + return entry; +@@ -1850,15 +1850,27 @@ ieee80211_rx_h_defragment(struct ieee802 + rx->seqno_idx, &(rx->skb)); + if (rx->key && + (rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP || +- rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP_256) && ++ rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP_256 || ++ rx->key->conf.cipher == WLAN_CIPHER_SUITE_GCMP || ++ rx->key->conf.cipher == WLAN_CIPHER_SUITE_GCMP_256) && + ieee80211_has_protected(fc)) { + int queue = rx->security_idx; +- /* Store CCMP PN so that we can verify that the next +- * fragment has a sequential PN value. */ +- entry->ccmp = 1; ++ ++ /* Store CCMP/GCMP PN so that we can verify that the ++ * next fragment has a sequential PN value. ++ */ ++ entry->check_sequential_pn = true; + memcpy(entry->last_pn, + rx->key->u.ccmp.rx_pn[queue], + IEEE80211_CCMP_PN_LEN); ++ BUILD_BUG_ON(offsetof(struct ieee80211_key, ++ u.ccmp.rx_pn) != ++ offsetof(struct ieee80211_key, ++ u.gcmp.rx_pn)); ++ BUILD_BUG_ON(sizeof(rx->key->u.ccmp.rx_pn[queue]) != ++ sizeof(rx->key->u.gcmp.rx_pn[queue])); ++ BUILD_BUG_ON(IEEE80211_CCMP_PN_LEN != ++ IEEE80211_GCMP_PN_LEN); + } + return RX_QUEUED; + } +@@ -1873,15 +1885,21 @@ ieee80211_rx_h_defragment(struct ieee802 + return RX_DROP_MONITOR; + } + +- /* Verify that MPDUs within one MSDU have sequential PN values. +- * (IEEE 802.11i, 8.3.3.4.5) */ +- if (entry->ccmp) { ++ /* "The receiver shall discard MSDUs and MMPDUs whose constituent ++ * MPDU PN values are not incrementing in steps of 1." ++ * see IEEE P802.11-REVmc/D5.0, 12.5.3.4.4, item d (for CCMP) ++ * and IEEE P802.11-REVmc/D5.0, 12.5.5.4.4, item d (for GCMP) ++ */ ++ if (entry->check_sequential_pn) { + int i; + u8 pn[IEEE80211_CCMP_PN_LEN], *rpn; + int queue; ++ + if (!rx->key || + (rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP && +- rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP_256)) ++ rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP_256 && ++ rx->key->conf.cipher != WLAN_CIPHER_SUITE_GCMP && ++ rx->key->conf.cipher != WLAN_CIPHER_SUITE_GCMP_256)) + return RX_DROP_UNUSABLE; + memcpy(pn, entry->last_pn, IEEE80211_CCMP_PN_LEN); + for (i = IEEE80211_CCMP_PN_LEN - 1; i >= 0; i--) { +@@ -3367,6 +3385,7 @@ static bool ieee80211_accept_frame(struc + return false; + /* ignore action frames to TDLS-peers */ + if (ieee80211_is_action(hdr->frame_control) && ++ !is_broadcast_ether_addr(bssid) && + !ether_addr_equal(bssid, hdr->addr1)) + return false; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/net/mac80211/scan.c linux-libre-4.4.7-gnu/net/mac80211/scan.c +--- linux-libre-4.4-gnu/net/mac80211/scan.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/mac80211/scan.c 2016-04-12 12:09:26.000000000 -0400 +@@ -314,6 +314,7 @@ static void __ieee80211_scan_completed(s + bool was_scanning = local->scanning; + struct cfg80211_scan_request *scan_req; + struct ieee80211_sub_if_data *scan_sdata; ++ struct ieee80211_sub_if_data *sdata; + + lockdep_assert_held(&local->mtx); + +@@ -373,7 +374,16 @@ static void __ieee80211_scan_completed(s + + ieee80211_mlme_notify_scan_completed(local); + ieee80211_ibss_notify_scan_completed(local); +- ieee80211_mesh_notify_scan_completed(local); ++ ++ /* Requeue all the work that might have been ignored while ++ * the scan was in progress; if there was none this will ++ * just be a no-op for the particular interface. ++ */ ++ list_for_each_entry_rcu(sdata, &local->interfaces, list) { ++ if (ieee80211_sdata_running(sdata)) ++ ieee80211_queue_work(&sdata->local->hw, &sdata->work); ++ } ++ + if (was_scanning) + ieee80211_start_next_roc(local); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/net/openvswitch/datapath.c linux-libre-4.4.7-gnu/net/openvswitch/datapath.c +--- linux-libre-4.4-gnu/net/openvswitch/datapath.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/openvswitch/datapath.c 2016-04-12 12:09:26.000000000 -0400 +@@ -336,12 +336,10 @@ static int queue_gso_packets(struct data + unsigned short gso_type = skb_shinfo(skb)->gso_type; + struct sw_flow_key later_key; + struct sk_buff *segs, *nskb; +- struct ovs_skb_cb ovs_cb; + int err; + +- ovs_cb = *OVS_CB(skb); ++ BUILD_BUG_ON(sizeof(*OVS_CB(skb)) > SKB_SGO_CB_OFFSET); + segs = __skb_gso_segment(skb, NETIF_F_SG, false); +- *OVS_CB(skb) = ovs_cb; + if (IS_ERR(segs)) + return PTR_ERR(segs); + if (segs == NULL) +@@ -359,7 +357,6 @@ static int queue_gso_packets(struct data + /* Queue all of the segments. */ + skb = segs; + do { +- *OVS_CB(skb) = ovs_cb; + if (gso_type & SKB_GSO_UDP && skb != segs) + key = &later_key; + +diff -druNp --no-dereference linux-libre-4.4-gnu/net/openvswitch/vport-vxlan.c linux-libre-4.4.7-gnu/net/openvswitch/vport-vxlan.c +--- linux-libre-4.4-gnu/net/openvswitch/vport-vxlan.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/openvswitch/vport-vxlan.c 2016-04-12 12:09:26.000000000 -0400 +@@ -90,7 +90,7 @@ static struct vport *vxlan_tnl_create(co + int err; + struct vxlan_config conf = { + .no_share = true, +- .flags = VXLAN_F_COLLECT_METADATA, ++ .flags = VXLAN_F_COLLECT_METADATA | VXLAN_F_UDP_ZERO_CSUM6_RX, + }; + + if (!options) { +diff -druNp --no-dereference linux-libre-4.4-gnu/net/phonet/af_phonet.c linux-libre-4.4.7-gnu/net/phonet/af_phonet.c +--- linux-libre-4.4-gnu/net/phonet/af_phonet.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/phonet/af_phonet.c 2016-04-12 12:09:26.000000000 -0400 +@@ -377,6 +377,10 @@ static int phonet_rcv(struct sk_buff *sk + struct sockaddr_pn sa; + u16 len; + ++ skb = skb_share_check(skb, GFP_ATOMIC); ++ if (!skb) ++ return NET_RX_DROP; ++ + /* check we have at least a full Phonet header */ + if (!pskb_pull(skb, sizeof(struct phonethdr))) + goto out; +diff -druNp --no-dereference linux-libre-4.4-gnu/net/rfkill/core.c linux-libre-4.4.7-gnu/net/rfkill/core.c +--- linux-libre-4.4-gnu/net/rfkill/core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/rfkill/core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1095,17 +1095,6 @@ static unsigned int rfkill_fop_poll(stru + return res; + } + +-static bool rfkill_readable(struct rfkill_data *data) +-{ +- bool r; +- +- mutex_lock(&data->mtx); +- r = !list_empty(&data->events); +- mutex_unlock(&data->mtx); +- +- return r; +-} +- + static ssize_t rfkill_fop_read(struct file *file, char __user *buf, + size_t count, loff_t *pos) + { +@@ -1122,8 +1111,11 @@ static ssize_t rfkill_fop_read(struct fi + goto out; + } + mutex_unlock(&data->mtx); ++ /* since we re-check and it just compares pointers, ++ * using !list_empty() without locking isn't a problem ++ */ + ret = wait_event_interruptible(data->read_wait, +- rfkill_readable(data)); ++ !list_empty(&data->events)); + mutex_lock(&data->mtx); + + if (ret) +diff -druNp --no-dereference linux-libre-4.4-gnu/net/sched/cls_flower.c linux-libre-4.4.7-gnu/net/sched/cls_flower.c +--- linux-libre-4.4-gnu/net/sched/cls_flower.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/sched/cls_flower.c 2016-04-12 12:09:26.000000000 -0400 +@@ -252,23 +252,28 @@ static int fl_set_key(struct net *net, s + fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, + mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, + sizeof(key->eth.src)); ++ + fl_set_key_val(tb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE, + &mask->basic.n_proto, TCA_FLOWER_UNSPEC, + sizeof(key->basic.n_proto)); ++ + if (key->basic.n_proto == htons(ETH_P_IP) || + key->basic.n_proto == htons(ETH_P_IPV6)) { + fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, + &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, + sizeof(key->basic.ip_proto)); + } +- if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { ++ ++ if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) { ++ key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; + fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, + &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, + sizeof(key->ipv4.src)); + fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, + &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, + sizeof(key->ipv4.dst)); +- } else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { ++ } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) { ++ key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; + fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, + &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, + sizeof(key->ipv6.src)); +@@ -276,6 +281,7 @@ static int fl_set_key(struct net *net, s + &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, + sizeof(key->ipv6.dst)); + } ++ + if (key->basic.ip_proto == IPPROTO_TCP) { + fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, + &mask->tp.src, TCA_FLOWER_UNSPEC, +diff -druNp --no-dereference linux-libre-4.4-gnu/net/sched/sch_api.c linux-libre-4.4.7-gnu/net/sched/sch_api.c +--- linux-libre-4.4-gnu/net/sched/sch_api.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/sched/sch_api.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1852,6 +1852,7 @@ reset: + } + + tp = old_tp; ++ protocol = tc_skb_protocol(skb); + goto reclassify; + #endif + } +diff -druNp --no-dereference linux-libre-4.4-gnu/net/sctp/protocol.c linux-libre-4.4.7-gnu/net/sctp/protocol.c +--- linux-libre-4.4-gnu/net/sctp/protocol.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/sctp/protocol.c 2016-04-12 12:09:26.000000000 -0400 +@@ -60,6 +60,8 @@ + #include <net/inet_common.h> + #include <net/inet_ecn.h> + ++#define MAX_SCTP_PORT_HASH_ENTRIES (64 * 1024) ++ + /* Global data structures. */ + struct sctp_globals sctp_globals __read_mostly; + +@@ -1352,6 +1354,8 @@ static __init int sctp_init(void) + unsigned long limit; + int max_share; + int order; ++ int num_entries; ++ int max_entry_order; + + sock_skb_cb_check_size(sizeof(struct sctp_ulpevent)); + +@@ -1404,14 +1408,24 @@ static __init int sctp_init(void) + + /* Size and allocate the association hash table. + * The methodology is similar to that of the tcp hash tables. ++ * Though not identical. Start by getting a goal size + */ + if (totalram_pages >= (128 * 1024)) + goal = totalram_pages >> (22 - PAGE_SHIFT); + else + goal = totalram_pages >> (24 - PAGE_SHIFT); + +- for (order = 0; (1UL << order) < goal; order++) +- ; ++ /* Then compute the page order for said goal */ ++ order = get_order(goal); ++ ++ /* Now compute the required page order for the maximum sized table we ++ * want to create ++ */ ++ max_entry_order = get_order(MAX_SCTP_PORT_HASH_ENTRIES * ++ sizeof(struct sctp_bind_hashbucket)); ++ ++ /* Limit the page order by that maximum hash table size */ ++ order = min(order, max_entry_order); + + do { + sctp_assoc_hashsize = (1UL << order) * PAGE_SIZE / +@@ -1445,20 +1459,35 @@ static __init int sctp_init(void) + INIT_HLIST_HEAD(&sctp_ep_hashtable[i].chain); + } + +- /* Allocate and initialize the SCTP port hash table. */ ++ /* Allocate and initialize the SCTP port hash table. ++ * Note that order is initalized to start at the max sized ++ * table we want to support. If we can't get that many pages ++ * reduce the order and try again ++ */ + do { +- sctp_port_hashsize = (1UL << order) * PAGE_SIZE / +- sizeof(struct sctp_bind_hashbucket); +- if ((sctp_port_hashsize > (64 * 1024)) && order > 0) +- continue; + sctp_port_hashtable = (struct sctp_bind_hashbucket *) + __get_free_pages(GFP_ATOMIC|__GFP_NOWARN, order); + } while (!sctp_port_hashtable && --order > 0); ++ + if (!sctp_port_hashtable) { + pr_err("Failed bind hash alloc\n"); + status = -ENOMEM; + goto err_bhash_alloc; + } ++ ++ /* Now compute the number of entries that will fit in the ++ * port hash space we allocated ++ */ ++ num_entries = (1UL << order) * PAGE_SIZE / ++ sizeof(struct sctp_bind_hashbucket); ++ ++ /* And finish by rounding it down to the nearest power of two ++ * this wastes some memory of course, but its needed because ++ * the hash function operates based on the assumption that ++ * that the number of entries is a power of two ++ */ ++ sctp_port_hashsize = rounddown_pow_of_two(num_entries); ++ + for (i = 0; i < sctp_port_hashsize; i++) { + spin_lock_init(&sctp_port_hashtable[i].lock); + INIT_HLIST_HEAD(&sctp_port_hashtable[i].chain); +diff -druNp --no-dereference linux-libre-4.4-gnu/net/sctp/socket.c linux-libre-4.4.7-gnu/net/sctp/socket.c +--- linux-libre-4.4-gnu/net/sctp/socket.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/sctp/socket.c 2016-04-12 12:09:26.000000000 -0400 +@@ -5542,6 +5542,7 @@ static int sctp_getsockopt_hmac_ident(st + struct sctp_hmac_algo_param *hmacs; + __u16 data_len = 0; + u32 num_idents; ++ int i; + + if (!ep->auth_enable) + return -EACCES; +@@ -5559,8 +5560,12 @@ static int sctp_getsockopt_hmac_ident(st + return -EFAULT; + if (put_user(num_idents, &p->shmac_num_idents)) + return -EFAULT; +- if (copy_to_user(p->shmac_idents, hmacs->hmac_ids, data_len)) +- return -EFAULT; ++ for (i = 0; i < num_idents; i++) { ++ __u16 hmacid = ntohs(hmacs->hmac_ids[i]); ++ ++ if (copy_to_user(&p->shmac_idents[i], &hmacid, sizeof(__u16))) ++ return -EFAULT; ++ } + return 0; + } + +@@ -6640,6 +6645,7 @@ static int sctp_msghdr_parse(const struc + + if (cmsgs->srinfo->sinfo_flags & + ~(SCTP_UNORDERED | SCTP_ADDR_OVER | ++ SCTP_SACK_IMMEDIATELY | + SCTP_ABORT | SCTP_EOF)) + return -EINVAL; + break; +@@ -6663,6 +6669,7 @@ static int sctp_msghdr_parse(const struc + + if (cmsgs->sinfo->snd_flags & + ~(SCTP_UNORDERED | SCTP_ADDR_OVER | ++ SCTP_SACK_IMMEDIATELY | + SCTP_ABORT | SCTP_EOF)) + return -EINVAL; + break; +diff -druNp --no-dereference linux-libre-4.4-gnu/net/sctp/sysctl.c linux-libre-4.4.7-gnu/net/sctp/sysctl.c +--- linux-libre-4.4-gnu/net/sctp/sysctl.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/sctp/sysctl.c 2016-04-12 12:09:26.000000000 -0400 +@@ -320,7 +320,7 @@ static int proc_sctp_do_hmac_alg(struct + struct ctl_table tbl; + bool changed = false; + char *none = "none"; +- char tmp[8]; ++ char tmp[8] = {0}; + int ret; + + memset(&tbl, 0, sizeof(struct ctl_table)); +diff -druNp --no-dereference linux-libre-4.4-gnu/net/sunrpc/cache.c linux-libre-4.4.7-gnu/net/sunrpc/cache.c +--- linux-libre-4.4-gnu/net/sunrpc/cache.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/sunrpc/cache.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1225,7 +1225,7 @@ int qword_get(char **bpp, char *dest, in + if (bp[0] == '\\' && bp[1] == 'x') { + /* HEX STRING */ + bp += 2; +- while (len < bufsize) { ++ while (len < bufsize - 1) { + int h, l; + + h = hex_to_bin(bp[0]); +diff -druNp --no-dereference linux-libre-4.4-gnu/net/sunrpc/xprtsock.c linux-libre-4.4.7-gnu/net/sunrpc/xprtsock.c +--- linux-libre-4.4-gnu/net/sunrpc/xprtsock.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/sunrpc/xprtsock.c 2016-04-12 12:09:26.000000000 -0400 +@@ -398,7 +398,6 @@ static int xs_sendpages(struct socket *s + if (unlikely(!sock)) + return -ENOTSOCK; + +- clear_bit(SOCKWQ_ASYNC_NOSPACE, &sock->flags); + if (base != 0) { + addr = NULL; + addrlen = 0; +@@ -442,7 +441,6 @@ static void xs_nospace_callback(struct r + struct sock_xprt *transport = container_of(task->tk_rqstp->rq_xprt, struct sock_xprt, xprt); + + transport->inet->sk_write_pending--; +- clear_bit(SOCKWQ_ASYNC_NOSPACE, &transport->sock->flags); + } + + /** +@@ -467,20 +465,11 @@ static int xs_nospace(struct rpc_task *t + + /* Don't race with disconnect */ + if (xprt_connected(xprt)) { +- if (test_bit(SOCKWQ_ASYNC_NOSPACE, &transport->sock->flags)) { +- /* +- * Notify TCP that we're limited by the application +- * window size +- */ +- set_bit(SOCK_NOSPACE, &transport->sock->flags); +- sk->sk_write_pending++; +- /* ...and wait for more buffer space */ +- xprt_wait_for_buffer_space(task, xs_nospace_callback); +- } +- } else { +- clear_bit(SOCKWQ_ASYNC_NOSPACE, &transport->sock->flags); ++ /* wait for more buffer space */ ++ sk->sk_write_pending++; ++ xprt_wait_for_buffer_space(task, xs_nospace_callback); ++ } else + ret = -ENOTCONN; +- } + + spin_unlock_bh(&xprt->transport_lock); + +@@ -616,9 +605,6 @@ process_status: + case -EAGAIN: + status = xs_nospace(task); + break; +- default: +- dprintk("RPC: sendmsg returned unrecognized error %d\n", +- -status); + case -ENETUNREACH: + case -ENOBUFS: + case -EPIPE: +@@ -626,7 +612,10 @@ process_status: + case -EPERM: + /* When the server has died, an ICMP port unreachable message + * prompts ECONNREFUSED. */ +- clear_bit(SOCKWQ_ASYNC_NOSPACE, &transport->sock->flags); ++ break; ++ default: ++ dprintk("RPC: sendmsg returned unrecognized error %d\n", ++ -status); + } + + return status; +@@ -706,16 +695,16 @@ static int xs_tcp_send_request(struct rp + case -EAGAIN: + status = xs_nospace(task); + break; +- default: +- dprintk("RPC: sendmsg returned unrecognized error %d\n", +- -status); + case -ECONNRESET: + case -ECONNREFUSED: + case -ENOTCONN: + case -EADDRINUSE: + case -ENOBUFS: + case -EPIPE: +- clear_bit(SOCKWQ_ASYNC_NOSPACE, &transport->sock->flags); ++ break; ++ default: ++ dprintk("RPC: sendmsg returned unrecognized error %d\n", ++ -status); + } + + return status; +@@ -1609,19 +1598,23 @@ static void xs_tcp_state_change(struct s + + static void xs_write_space(struct sock *sk) + { +- struct socket *sock; ++ struct socket_wq *wq; + struct rpc_xprt *xprt; + +- if (unlikely(!(sock = sk->sk_socket))) ++ if (!sk->sk_socket) + return; +- clear_bit(SOCK_NOSPACE, &sock->flags); ++ clear_bit(SOCK_NOSPACE, &sk->sk_socket->flags); + + if (unlikely(!(xprt = xprt_from_sock(sk)))) + return; +- if (test_and_clear_bit(SOCKWQ_ASYNC_NOSPACE, &sock->flags) == 0) +- return; ++ rcu_read_lock(); ++ wq = rcu_dereference(sk->sk_wq); ++ if (!wq || test_and_clear_bit(SOCKWQ_ASYNC_NOSPACE, &wq->flags) == 0) ++ goto out; + + xprt_write_space(xprt); ++out: ++ rcu_read_unlock(); + } + + /** +diff -druNp --no-dereference linux-libre-4.4-gnu/net/switchdev/switchdev.c linux-libre-4.4.7-gnu/net/switchdev/switchdev.c +--- linux-libre-4.4-gnu/net/switchdev/switchdev.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/switchdev/switchdev.c 2016-04-12 12:09:26.000000000 -0400 +@@ -20,6 +20,7 @@ + #include <linux/list.h> + #include <linux/workqueue.h> + #include <linux/if_vlan.h> ++#include <linux/rtnetlink.h> + #include <net/ip_fib.h> + #include <net/switchdev.h> + +@@ -565,7 +566,6 @@ int switchdev_port_obj_dump(struct net_d + } + EXPORT_SYMBOL_GPL(switchdev_port_obj_dump); + +-static DEFINE_MUTEX(switchdev_mutex); + static RAW_NOTIFIER_HEAD(switchdev_notif_chain); + + /** +@@ -580,9 +580,9 @@ int register_switchdev_notifier(struct n + { + int err; + +- mutex_lock(&switchdev_mutex); ++ rtnl_lock(); + err = raw_notifier_chain_register(&switchdev_notif_chain, nb); +- mutex_unlock(&switchdev_mutex); ++ rtnl_unlock(); + return err; + } + EXPORT_SYMBOL_GPL(register_switchdev_notifier); +@@ -598,9 +598,9 @@ int unregister_switchdev_notifier(struct + { + int err; + +- mutex_lock(&switchdev_mutex); ++ rtnl_lock(); + err = raw_notifier_chain_unregister(&switchdev_notif_chain, nb); +- mutex_unlock(&switchdev_mutex); ++ rtnl_unlock(); + return err; + } + EXPORT_SYMBOL_GPL(unregister_switchdev_notifier); +@@ -614,16 +614,17 @@ EXPORT_SYMBOL_GPL(unregister_switchdev_n + * Call all network notifier blocks. This should be called by driver + * when it needs to propagate hardware event. + * Return values are same as for atomic_notifier_call_chain(). ++ * rtnl_lock must be held. + */ + int call_switchdev_notifiers(unsigned long val, struct net_device *dev, + struct switchdev_notifier_info *info) + { + int err; + ++ ASSERT_RTNL(); ++ + info->dev = dev; +- mutex_lock(&switchdev_mutex); + err = raw_notifier_call_chain(&switchdev_notif_chain, val, info); +- mutex_unlock(&switchdev_mutex); + return err; + } + EXPORT_SYMBOL_GPL(call_switchdev_notifiers); +diff -druNp --no-dereference linux-libre-4.4-gnu/net/tipc/bcast.c linux-libre-4.4.7-gnu/net/tipc/bcast.c +--- linux-libre-4.4-gnu/net/tipc/bcast.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/tipc/bcast.c 2016-04-12 12:09:26.000000000 -0400 +@@ -399,8 +399,10 @@ int tipc_nl_add_bc_link(struct net *net, + + hdr = genlmsg_put(msg->skb, msg->portid, msg->seq, &tipc_genl_family, + NLM_F_MULTI, TIPC_NL_LINK_GET); +- if (!hdr) ++ if (!hdr) { ++ tipc_bcast_unlock(net); + return -EMSGSIZE; ++ } + + attrs = nla_nest_start(msg->skb, TIPC_NLA_LINK); + if (!attrs) +diff -druNp --no-dereference linux-libre-4.4-gnu/net/tipc/node.c linux-libre-4.4.7-gnu/net/tipc/node.c +--- linux-libre-4.4-gnu/net/tipc/node.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/tipc/node.c 2016-04-12 12:09:26.000000000 -0400 +@@ -168,12 +168,6 @@ struct tipc_node *tipc_node_create(struc + skb_queue_head_init(&n_ptr->bc_entry.inputq1); + __skb_queue_head_init(&n_ptr->bc_entry.arrvq); + skb_queue_head_init(&n_ptr->bc_entry.inputq2); +- hlist_add_head_rcu(&n_ptr->hash, &tn->node_htable[tipc_hashfn(addr)]); +- list_for_each_entry_rcu(temp_node, &tn->node_list, list) { +- if (n_ptr->addr < temp_node->addr) +- break; +- } +- list_add_tail_rcu(&n_ptr->list, &temp_node->list); + n_ptr->state = SELF_DOWN_PEER_LEAVING; + n_ptr->signature = INVALID_NODE_SIG; + n_ptr->active_links[0] = INVALID_BEARER_ID; +@@ -193,6 +187,12 @@ struct tipc_node *tipc_node_create(struc + tipc_node_get(n_ptr); + setup_timer(&n_ptr->timer, tipc_node_timeout, (unsigned long)n_ptr); + n_ptr->keepalive_intv = U32_MAX; ++ hlist_add_head_rcu(&n_ptr->hash, &tn->node_htable[tipc_hashfn(addr)]); ++ list_for_each_entry_rcu(temp_node, &tn->node_list, list) { ++ if (n_ptr->addr < temp_node->addr) ++ break; ++ } ++ list_add_tail_rcu(&n_ptr->list, &temp_node->list); + exit: + spin_unlock_bh(&tn->node_list_lock); + return n_ptr; +diff -druNp --no-dereference linux-libre-4.4-gnu/net/tipc/subscr.c linux-libre-4.4.7-gnu/net/tipc/subscr.c +--- linux-libre-4.4-gnu/net/tipc/subscr.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/tipc/subscr.c 2016-04-12 12:09:26.000000000 -0400 +@@ -289,15 +289,14 @@ static void tipc_subscrb_rcv_cb(struct n + struct sockaddr_tipc *addr, void *usr_data, + void *buf, size_t len) + { +- struct tipc_subscriber *subscriber = usr_data; ++ struct tipc_subscriber *subscrb = usr_data; + struct tipc_subscription *sub = NULL; + struct tipc_net *tn = net_generic(net, tipc_net_id); + +- tipc_subscrp_create(net, (struct tipc_subscr *)buf, subscriber, &sub); +- if (sub) +- tipc_nametbl_subscribe(sub); +- else +- tipc_conn_terminate(tn->topsrv, subscriber->conid); ++ if (tipc_subscrp_create(net, (struct tipc_subscr *)buf, subscrb, &sub)) ++ return tipc_conn_terminate(tn->topsrv, subscrb->conid); ++ ++ tipc_nametbl_subscribe(sub); + } + + /* Handle one request to establish a new subscriber */ +diff -druNp --no-dereference linux-libre-4.4-gnu/net/unix/af_unix.c linux-libre-4.4.7-gnu/net/unix/af_unix.c +--- linux-libre-4.4-gnu/net/unix/af_unix.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/unix/af_unix.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1496,7 +1496,7 @@ static void unix_detach_fds(struct scm_c + UNIXCB(skb).fp = NULL; + + for (i = scm->fp->count-1; i >= 0; i--) +- unix_notinflight(scm->fp->fp[i]); ++ unix_notinflight(scm->fp->user, scm->fp->fp[i]); + } + + static void unix_destruct_scm(struct sk_buff *skb) +@@ -1513,6 +1513,21 @@ static void unix_destruct_scm(struct sk_ + sock_wfree(skb); + } + ++/* ++ * The "user->unix_inflight" variable is protected by the garbage ++ * collection lock, and we just read it locklessly here. If you go ++ * over the limit, there might be a tiny race in actually noticing ++ * it across threads. Tough. ++ */ ++static inline bool too_many_unix_fds(struct task_struct *p) ++{ ++ struct user_struct *user = current_user(); ++ ++ if (unlikely(user->unix_inflight > task_rlimit(p, RLIMIT_NOFILE))) ++ return !capable(CAP_SYS_RESOURCE) && !capable(CAP_SYS_ADMIN); ++ return false; ++} ++ + #define MAX_RECURSION_LEVEL 4 + + static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb) +@@ -1521,6 +1536,9 @@ static int unix_attach_fds(struct scm_co + unsigned char max_level = 0; + int unix_sock_count = 0; + ++ if (too_many_unix_fds(current)) ++ return -ETOOMANYREFS; ++ + for (i = scm->fp->count - 1; i >= 0; i--) { + struct sock *sk = unix_get_socket(scm->fp->fp[i]); + +@@ -1542,10 +1560,8 @@ static int unix_attach_fds(struct scm_co + if (!UNIXCB(skb).fp) + return -ENOMEM; + +- if (unix_sock_count) { +- for (i = scm->fp->count - 1; i >= 0; i--) +- unix_inflight(scm->fp->fp[i]); +- } ++ for (i = scm->fp->count - 1; i >= 0; i--) ++ unix_inflight(scm->fp->user, scm->fp->fp[i]); + return max_level; + } + +@@ -1765,7 +1781,12 @@ restart_locked: + goto out_unlock; + } + +- if (unlikely(unix_peer(other) != sk && unix_recvq_full(other))) { ++ /* other == sk && unix_peer(other) != sk if ++ * - unix_peer(sk) == NULL, destination address bound to sk ++ * - unix_peer(sk) == sk by time of get but disconnected before lock ++ */ ++ if (other != sk && ++ unlikely(unix_peer(other) != sk && unix_recvq_full(other))) { + if (timeo) { + timeo = unix_wait_for_peer(other, timeo); + +@@ -2254,13 +2275,15 @@ static int unix_stream_read_generic(stru + size_t size = state->size; + unsigned int last_len; + +- err = -EINVAL; +- if (sk->sk_state != TCP_ESTABLISHED) ++ if (unlikely(sk->sk_state != TCP_ESTABLISHED)) { ++ err = -EINVAL; + goto out; ++ } + +- err = -EOPNOTSUPP; +- if (flags & MSG_OOB) ++ if (unlikely(flags & MSG_OOB)) { ++ err = -EOPNOTSUPP; + goto out; ++ } + + target = sock_rcvlowat(sk, flags & MSG_WAITALL, size); + timeo = sock_rcvtimeo(sk, noblock); +@@ -2306,9 +2329,11 @@ again: + goto unlock; + + unix_state_unlock(sk); +- err = -EAGAIN; +- if (!timeo) ++ if (!timeo) { ++ err = -EAGAIN; + break; ++ } ++ + mutex_unlock(&u->readlock); + + timeo = unix_stream_data_wait(sk, timeo, last, +@@ -2316,6 +2341,7 @@ again: + + if (signal_pending(current)) { + err = sock_intr_errno(timeo); ++ scm_destroy(&scm); + goto out; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/net/unix/diag.c linux-libre-4.4.7-gnu/net/unix/diag.c +--- linux-libre-4.4-gnu/net/unix/diag.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/unix/diag.c 2016-04-12 12:09:26.000000000 -0400 +@@ -220,7 +220,7 @@ done: + return skb->len; + } + +-static struct sock *unix_lookup_by_ino(int ino) ++static struct sock *unix_lookup_by_ino(unsigned int ino) + { + int i; + struct sock *sk; +diff -druNp --no-dereference linux-libre-4.4-gnu/net/unix/garbage.c linux-libre-4.4.7-gnu/net/unix/garbage.c +--- linux-libre-4.4-gnu/net/unix/garbage.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/unix/garbage.c 2016-04-12 12:09:26.000000000 -0400 +@@ -116,15 +116,15 @@ struct sock *unix_get_socket(struct file + * descriptor if it is for an AF_UNIX socket. + */ + +-void unix_inflight(struct file *fp) ++void unix_inflight(struct user_struct *user, struct file *fp) + { + struct sock *s = unix_get_socket(fp); + ++ spin_lock(&unix_gc_lock); ++ + if (s) { + struct unix_sock *u = unix_sk(s); + +- spin_lock(&unix_gc_lock); +- + if (atomic_long_inc_return(&u->inflight) == 1) { + BUG_ON(!list_empty(&u->link)); + list_add_tail(&u->link, &gc_inflight_list); +@@ -132,25 +132,28 @@ void unix_inflight(struct file *fp) + BUG_ON(list_empty(&u->link)); + } + unix_tot_inflight++; +- spin_unlock(&unix_gc_lock); + } ++ user->unix_inflight++; ++ spin_unlock(&unix_gc_lock); + } + +-void unix_notinflight(struct file *fp) ++void unix_notinflight(struct user_struct *user, struct file *fp) + { + struct sock *s = unix_get_socket(fp); + ++ spin_lock(&unix_gc_lock); ++ + if (s) { + struct unix_sock *u = unix_sk(s); + +- spin_lock(&unix_gc_lock); + BUG_ON(list_empty(&u->link)); + + if (atomic_long_dec_and_test(&u->inflight)) + list_del_init(&u->link); + unix_tot_inflight--; +- spin_unlock(&unix_gc_lock); + } ++ user->unix_inflight--; ++ spin_unlock(&unix_gc_lock); + } + + static void scan_inflight(struct sock *x, void (*func)(struct unix_sock *), +diff -druNp --no-dereference linux-libre-4.4-gnu/net/wireless/core.c linux-libre-4.4.7-gnu/net/wireless/core.c +--- linux-libre-4.4-gnu/net/wireless/core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/wireless/core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1147,6 +1147,8 @@ static int cfg80211_netdev_notifier_call + return NOTIFY_DONE; + } + ++ wireless_nlevent_flush(); ++ + return NOTIFY_OK; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/net/wireless/wext-core.c linux-libre-4.4.7-gnu/net/wireless/wext-core.c +--- linux-libre-4.4-gnu/net/wireless/wext-core.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/wireless/wext-core.c 2016-04-12 12:09:26.000000000 -0400 +@@ -342,6 +342,40 @@ static const int compat_event_type_size[ + + /* IW event code */ + ++void wireless_nlevent_flush(void) ++{ ++ struct sk_buff *skb; ++ struct net *net; ++ ++ ASSERT_RTNL(); ++ ++ for_each_net(net) { ++ while ((skb = skb_dequeue(&net->wext_nlevents))) ++ rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, ++ GFP_KERNEL); ++ } ++} ++EXPORT_SYMBOL_GPL(wireless_nlevent_flush); ++ ++static int wext_netdev_notifier_call(struct notifier_block *nb, ++ unsigned long state, void *ptr) ++{ ++ /* ++ * When a netdev changes state in any way, flush all pending messages ++ * to avoid them going out in a strange order, e.g. RTM_NEWLINK after ++ * RTM_DELLINK, or with IFF_UP after without IFF_UP during dev_close() ++ * or similar - all of which could otherwise happen due to delays from ++ * schedule_work(). ++ */ ++ wireless_nlevent_flush(); ++ ++ return NOTIFY_OK; ++} ++ ++static struct notifier_block wext_netdev_notifier = { ++ .notifier_call = wext_netdev_notifier_call, ++}; ++ + static int __net_init wext_pernet_init(struct net *net) + { + skb_queue_head_init(&net->wext_nlevents); +@@ -360,7 +394,12 @@ static struct pernet_operations wext_per + + static int __init wireless_nlevent_init(void) + { +- return register_pernet_subsys(&wext_pernet_ops); ++ int err = register_pernet_subsys(&wext_pernet_ops); ++ ++ if (err) ++ return err; ++ ++ return register_netdevice_notifier(&wext_netdev_notifier); + } + + subsys_initcall(wireless_nlevent_init); +@@ -368,17 +407,8 @@ subsys_initcall(wireless_nlevent_init); + /* Process events generated by the wireless layer or the driver. */ + static void wireless_nlevent_process(struct work_struct *work) + { +- struct sk_buff *skb; +- struct net *net; +- + rtnl_lock(); +- +- for_each_net(net) { +- while ((skb = skb_dequeue(&net->wext_nlevents))) +- rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, +- GFP_KERNEL); +- } +- ++ wireless_nlevent_flush(); + rtnl_unlock(); + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/net/xfrm/xfrm_output.c linux-libre-4.4.7-gnu/net/xfrm/xfrm_output.c +--- linux-libre-4.4-gnu/net/xfrm/xfrm_output.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/net/xfrm/xfrm_output.c 2016-04-12 12:09:26.000000000 -0400 +@@ -167,6 +167,8 @@ static int xfrm_output_gso(struct net *n + { + struct sk_buff *segs; + ++ BUILD_BUG_ON(sizeof(*IPCB(skb)) > SKB_SGO_CB_OFFSET); ++ BUILD_BUG_ON(sizeof(*IP6CB(skb)) > SKB_SGO_CB_OFFSET); + segs = skb_gso_segment(skb, 0); + kfree_skb(skb); + if (IS_ERR(segs)) +diff -druNp --no-dereference linux-libre-4.4-gnu/scripts/bloat-o-meter linux-libre-4.4.7-gnu/scripts/bloat-o-meter +--- linux-libre-4.4-gnu/scripts/bloat-o-meter 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/scripts/bloat-o-meter 2016-04-12 12:09:26.000000000 -0400 +@@ -58,8 +58,8 @@ for name in common: + delta.sort() + delta.reverse() + +-print "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \ +- (add, remove, grow, shrink, up, -down, up-down) +-print "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta") ++print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \ ++ (add, remove, grow, shrink, up, -down, up-down)) ++print("%-40s %7s %7s %+7s" % ("function", "old", "new", "delta")) + for d, n in delta: +- if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d) ++ if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d)) +diff -druNp --no-dereference linux-libre-4.4-gnu/scripts/coccinelle/iterators/use_after_iter.cocci linux-libre-4.4.7-gnu/scripts/coccinelle/iterators/use_after_iter.cocci +--- linux-libre-4.4-gnu/scripts/coccinelle/iterators/use_after_iter.cocci 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/scripts/coccinelle/iterators/use_after_iter.cocci 2016-04-12 12:09:26.000000000 -0400 +@@ -123,7 +123,7 @@ list_remove_head(x,c,...) + | + sizeof(<+...c...+>) + | +-&c->member ++ &c->member + | + c = E + | +diff -druNp --no-dereference linux-libre-4.4-gnu/scripts/kconfig/Makefile linux-libre-4.4.7-gnu/scripts/kconfig/Makefile +--- linux-libre-4.4-gnu/scripts/kconfig/Makefile 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/scripts/kconfig/Makefile 2016-04-12 12:09:26.000000000 -0400 +@@ -96,13 +96,15 @@ savedefconfig: $(obj)/conf + defconfig: $(obj)/conf + ifeq ($(KBUILD_DEFCONFIG),) + $< $(silent) --defconfig $(Kconfig) +-else ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),) ++else ++ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),) + @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'" + $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig) + else + @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'" + $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG) + endif ++endif + + %_defconfig: $(obj)/conf + $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig) +diff -druNp --no-dereference linux-libre-4.4-gnu/scripts/ld-version.sh linux-libre-4.4.7-gnu/scripts/ld-version.sh +--- linux-libre-4.4-gnu/scripts/ld-version.sh 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/scripts/ld-version.sh 2016-04-12 12:09:26.000000000 -0400 +@@ -1,7 +1,7 @@ + #!/usr/bin/awk -f + # extract linker version number from stdin and turn into single number + { +- gsub(".*)", ""); ++ gsub(".*\\)", ""); + split($1,a, "."); + print a[1]*10000000 + a[2]*100000 + a[3]*10000 + a[4]*100 + a[5]; + exit +diff -druNp --no-dereference linux-libre-4.4-gnu/scripts/link-vmlinux.sh linux-libre-4.4.7-gnu/scripts/link-vmlinux.sh +--- linux-libre-4.4-gnu/scripts/link-vmlinux.sh 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/scripts/link-vmlinux.sh 2016-04-12 12:09:26.000000000 -0400 +@@ -62,7 +62,7 @@ vmlinux_link() + -Wl,--start-group \ + ${KBUILD_VMLINUX_MAIN} \ + -Wl,--end-group \ +- -lutil -lrt ${1} ++ -lutil -lrt -lpthread ${1} + rm -f linux + fi + } +diff -druNp --no-dereference linux-libre-4.4-gnu/scripts/package/mkspec linux-libre-4.4.7-gnu/scripts/package/mkspec +--- linux-libre-4.4-gnu/scripts/package/mkspec 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/scripts/package/mkspec 2016-04-12 12:09:26.000000000 -0400 +@@ -131,11 +131,11 @@ echo 'rm -rf $RPM_BUILD_ROOT' + echo "" + echo "%post" + echo "if [ -x /sbin/installkernel -a -r /boot/vmlinuz-$KERNELRELEASE -a -r /boot/System.map-$KERNELRELEASE ]; then" +-echo "cp /boot/vmlinuz-$KERNELRELEASE /boot/vmlinuz-$KERNELRELEASE-rpm" +-echo "cp /boot/System.map-$KERNELRELEASE /boot/System.map-$KERNELRELEASE-rpm" ++echo "cp /boot/vmlinuz-$KERNELRELEASE /boot/.vmlinuz-$KERNELRELEASE-rpm" ++echo "cp /boot/System.map-$KERNELRELEASE /boot/.System.map-$KERNELRELEASE-rpm" + echo "rm -f /boot/vmlinuz-$KERNELRELEASE /boot/System.map-$KERNELRELEASE" +-echo "/sbin/installkernel $KERNELRELEASE /boot/vmlinuz-$KERNELRELEASE-rpm /boot/System.map-$KERNELRELEASE-rpm" +-echo "rm -f /boot/vmlinuz-$KERNELRELEASE-rpm /boot/System.map-$KERNELRELEASE-rpm" ++echo "/sbin/installkernel $KERNELRELEASE /boot/.vmlinuz-$KERNELRELEASE-rpm /boot/.System.map-$KERNELRELEASE-rpm" ++echo "rm -f /boot/.vmlinuz-$KERNELRELEASE-rpm /boot/.System.map-$KERNELRELEASE-rpm" + echo "fi" + echo "" + echo "%files" +diff -druNp --no-dereference linux-libre-4.4-gnu/scripts/recordmcount.pl linux-libre-4.4.7-gnu/scripts/recordmcount.pl +--- linux-libre-4.4-gnu/scripts/recordmcount.pl 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/scripts/recordmcount.pl 2016-04-12 12:09:26.000000000 -0400 +@@ -263,7 +263,8 @@ if ($arch eq "x86_64") { + + } elsif ($arch eq "powerpc") { + $local_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\.?\\S+)"; +- $function_regex = "^([0-9a-fA-F]+)\\s+<(\\.?.*?)>:"; ++ # See comment in the sparc64 section for why we use '\w'. ++ $function_regex = "^([0-9a-fA-F]+)\\s+<(\\.?\\w*?)>:"; + $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s\\.?_mcount\$"; + + if ($bits == 64) { +diff -druNp --no-dereference linux-libre-4.4-gnu/security/commoncap.c linux-libre-4.4.7-gnu/security/commoncap.c +--- linux-libre-4.4-gnu/security/commoncap.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/security/commoncap.c 2016-04-12 12:09:26.000000000 -0400 +@@ -137,12 +137,17 @@ int cap_ptrace_access_check(struct task_ + { + int ret = 0; + const struct cred *cred, *child_cred; ++ const kernel_cap_t *caller_caps; + + rcu_read_lock(); + cred = current_cred(); + child_cred = __task_cred(child); ++ if (mode & PTRACE_MODE_FSCREDS) ++ caller_caps = &cred->cap_effective; ++ else ++ caller_caps = &cred->cap_permitted; + if (cred->user_ns == child_cred->user_ns && +- cap_issubset(child_cred->cap_permitted, cred->cap_permitted)) ++ cap_issubset(child_cred->cap_permitted, *caller_caps)) + goto out; + if (ns_capable(child_cred->user_ns, CAP_SYS_PTRACE)) + goto out; +diff -druNp --no-dereference linux-libre-4.4-gnu/security/integrity/evm/evm_main.c linux-libre-4.4.7-gnu/security/integrity/evm/evm_main.c +--- linux-libre-4.4-gnu/security/integrity/evm/evm_main.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/security/integrity/evm/evm_main.c 2016-04-12 12:09:26.000000000 -0400 +@@ -23,6 +23,7 @@ + #include <linux/integrity.h> + #include <linux/evm.h> + #include <crypto/hash.h> ++#include <crypto/algapi.h> + #include "evm.h" + + int evm_initialized; +@@ -148,7 +149,7 @@ static enum integrity_status evm_verify_ + xattr_value_len, calc.digest); + if (rc) + break; +- rc = memcmp(xattr_data->digest, calc.digest, ++ rc = crypto_memneq(xattr_data->digest, calc.digest, + sizeof(calc.digest)); + if (rc) + rc = -EINVAL; +diff -druNp --no-dereference linux-libre-4.4-gnu/security/keys/process_keys.c linux-libre-4.4.7-gnu/security/keys/process_keys.c +--- linux-libre-4.4-gnu/security/keys/process_keys.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/security/keys/process_keys.c 2016-04-12 12:09:26.000000000 -0400 +@@ -794,6 +794,7 @@ long join_session_keyring(const char *na + ret = PTR_ERR(keyring); + goto error2; + } else if (keyring == new->session_keyring) { ++ key_put(keyring); + ret = 0; + goto error2; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/security/smack/smack_lsm.c linux-libre-4.4.7-gnu/security/smack/smack_lsm.c +--- linux-libre-4.4-gnu/security/smack/smack_lsm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/security/smack/smack_lsm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -398,12 +398,10 @@ static int smk_copy_relabel(struct list_ + */ + static inline unsigned int smk_ptrace_mode(unsigned int mode) + { +- switch (mode) { +- case PTRACE_MODE_READ: +- return MAY_READ; +- case PTRACE_MODE_ATTACH: ++ if (mode & PTRACE_MODE_ATTACH) + return MAY_READWRITE; +- } ++ if (mode & PTRACE_MODE_READ) ++ return MAY_READ; + + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/security/yama/yama_lsm.c linux-libre-4.4.7-gnu/security/yama/yama_lsm.c +--- linux-libre-4.4-gnu/security/yama/yama_lsm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/security/yama/yama_lsm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -281,7 +281,7 @@ static int yama_ptrace_access_check(stru + int rc = 0; + + /* require ptrace target be a child of ptracer on attach */ +- if (mode == PTRACE_MODE_ATTACH) { ++ if (mode & PTRACE_MODE_ATTACH) { + switch (ptrace_scope) { + case YAMA_SCOPE_DISABLED: + /* No additional restrictions. */ +@@ -307,7 +307,7 @@ static int yama_ptrace_access_check(stru + } + } + +- if (rc) { ++ if (rc && (mode & PTRACE_MODE_NOAUDIT) == 0) { + printk_ratelimited(KERN_NOTICE + "ptrace of pid %d was attempted by: %s (pid %d)\n", + child->pid, current->comm, current->pid); +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/compress_offload.c linux-libre-4.4.7-gnu/sound/core/compress_offload.c +--- linux-libre-4.4-gnu/sound/core/compress_offload.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/compress_offload.c 2016-04-12 12:09:26.000000000 -0400 +@@ -44,6 +44,13 @@ + #include <sound/compress_offload.h> + #include <sound/compress_driver.h> + ++/* struct snd_compr_codec_caps overflows the ioctl bit size for some ++ * architectures, so we need to disable the relevant ioctls. ++ */ ++#if _IOC_SIZEBITS < 14 ++#define COMPR_CODEC_CAPS_OVERFLOW ++#endif ++ + /* TODO: + * - add substream support for multiple devices in case of + * SND_DYNAMIC_MINORS is not used +@@ -438,6 +445,7 @@ out: + return retval; + } + ++#ifndef COMPR_CODEC_CAPS_OVERFLOW + static int + snd_compr_get_codec_caps(struct snd_compr_stream *stream, unsigned long arg) + { +@@ -461,6 +469,7 @@ out: + kfree(caps); + return retval; + } ++#endif /* !COMPR_CODEC_CAPS_OVERFLOW */ + + /* revisit this with snd_pcm_preallocate_xxx */ + static int snd_compr_allocate_buffer(struct snd_compr_stream *stream, +@@ -799,9 +808,11 @@ static long snd_compr_ioctl(struct file + case _IOC_NR(SNDRV_COMPRESS_GET_CAPS): + retval = snd_compr_get_caps(stream, arg); + break; ++#ifndef COMPR_CODEC_CAPS_OVERFLOW + case _IOC_NR(SNDRV_COMPRESS_GET_CODEC_CAPS): + retval = snd_compr_get_codec_caps(stream, arg); + break; ++#endif + case _IOC_NR(SNDRV_COMPRESS_SET_PARAMS): + retval = snd_compr_set_params(stream, arg); + break; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/control.c linux-libre-4.4.7-gnu/sound/core/control.c +--- linux-libre-4.4-gnu/sound/core/control.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/control.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1405,6 +1405,8 @@ static int snd_ctl_tlv_ioctl(struct snd_ + return -EFAULT; + if (tlv.length < sizeof(unsigned int) * 2) + return -EINVAL; ++ if (!tlv.numid) ++ return -EINVAL; + down_read(&card->controls_rwsem); + kctl = snd_ctl_find_numid(card, tlv.numid); + if (kctl == NULL) { +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/control_compat.c linux-libre-4.4.7-gnu/sound/core/control_compat.c +--- linux-libre-4.4-gnu/sound/core/control_compat.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/control_compat.c 2016-04-12 12:09:26.000000000 -0400 +@@ -170,6 +170,19 @@ struct snd_ctl_elem_value32 { + unsigned char reserved[128]; + }; + ++#ifdef CONFIG_X86_X32 ++/* x32 has a different alignment for 64bit values from ia32 */ ++struct snd_ctl_elem_value_x32 { ++ struct snd_ctl_elem_id id; ++ unsigned int indirect; /* bit-field causes misalignment */ ++ union { ++ s32 integer[128]; ++ unsigned char data[512]; ++ s64 integer64[64]; ++ } value; ++ unsigned char reserved[128]; ++}; ++#endif /* CONFIG_X86_X32 */ + + /* get the value type and count of the control */ + static int get_ctl_type(struct snd_card *card, struct snd_ctl_elem_id *id, +@@ -219,9 +232,11 @@ static int get_elem_size(int type, int c + + static int copy_ctl_value_from_user(struct snd_card *card, + struct snd_ctl_elem_value *data, +- struct snd_ctl_elem_value32 __user *data32, ++ void __user *userdata, ++ void __user *valuep, + int *typep, int *countp) + { ++ struct snd_ctl_elem_value32 __user *data32 = userdata; + int i, type, size; + int uninitialized_var(count); + unsigned int indirect; +@@ -239,8 +254,9 @@ static int copy_ctl_value_from_user(stru + if (type == SNDRV_CTL_ELEM_TYPE_BOOLEAN || + type == SNDRV_CTL_ELEM_TYPE_INTEGER) { + for (i = 0; i < count; i++) { ++ s32 __user *intp = valuep; + int val; +- if (get_user(val, &data32->value.integer[i])) ++ if (get_user(val, &intp[i])) + return -EFAULT; + data->value.integer.value[i] = val; + } +@@ -250,8 +266,7 @@ static int copy_ctl_value_from_user(stru + dev_err(card->dev, "snd_ioctl32_ctl_elem_value: unknown type %d\n", type); + return -EINVAL; + } +- if (copy_from_user(data->value.bytes.data, +- data32->value.data, size)) ++ if (copy_from_user(data->value.bytes.data, valuep, size)) + return -EFAULT; + } + +@@ -261,7 +276,8 @@ static int copy_ctl_value_from_user(stru + } + + /* restore the value to 32bit */ +-static int copy_ctl_value_to_user(struct snd_ctl_elem_value32 __user *data32, ++static int copy_ctl_value_to_user(void __user *userdata, ++ void __user *valuep, + struct snd_ctl_elem_value *data, + int type, int count) + { +@@ -270,22 +286,22 @@ static int copy_ctl_value_to_user(struct + if (type == SNDRV_CTL_ELEM_TYPE_BOOLEAN || + type == SNDRV_CTL_ELEM_TYPE_INTEGER) { + for (i = 0; i < count; i++) { ++ s32 __user *intp = valuep; + int val; + val = data->value.integer.value[i]; +- if (put_user(val, &data32->value.integer[i])) ++ if (put_user(val, &intp[i])) + return -EFAULT; + } + } else { + size = get_elem_size(type, count); +- if (copy_to_user(data32->value.data, +- data->value.bytes.data, size)) ++ if (copy_to_user(valuep, data->value.bytes.data, size)) + return -EFAULT; + } + return 0; + } + +-static int snd_ctl_elem_read_user_compat(struct snd_card *card, +- struct snd_ctl_elem_value32 __user *data32) ++static int ctl_elem_read_user(struct snd_card *card, ++ void __user *userdata, void __user *valuep) + { + struct snd_ctl_elem_value *data; + int err, type, count; +@@ -294,7 +310,9 @@ static int snd_ctl_elem_read_user_compat + if (data == NULL) + return -ENOMEM; + +- if ((err = copy_ctl_value_from_user(card, data, data32, &type, &count)) < 0) ++ err = copy_ctl_value_from_user(card, data, userdata, valuep, ++ &type, &count); ++ if (err < 0) + goto error; + + snd_power_lock(card); +@@ -303,14 +321,15 @@ static int snd_ctl_elem_read_user_compat + err = snd_ctl_elem_read(card, data); + snd_power_unlock(card); + if (err >= 0) +- err = copy_ctl_value_to_user(data32, data, type, count); ++ err = copy_ctl_value_to_user(userdata, valuep, data, ++ type, count); + error: + kfree(data); + return err; + } + +-static int snd_ctl_elem_write_user_compat(struct snd_ctl_file *file, +- struct snd_ctl_elem_value32 __user *data32) ++static int ctl_elem_write_user(struct snd_ctl_file *file, ++ void __user *userdata, void __user *valuep) + { + struct snd_ctl_elem_value *data; + struct snd_card *card = file->card; +@@ -320,7 +339,9 @@ static int snd_ctl_elem_write_user_compa + if (data == NULL) + return -ENOMEM; + +- if ((err = copy_ctl_value_from_user(card, data, data32, &type, &count)) < 0) ++ err = copy_ctl_value_from_user(card, data, userdata, valuep, ++ &type, &count); ++ if (err < 0) + goto error; + + snd_power_lock(card); +@@ -329,12 +350,39 @@ static int snd_ctl_elem_write_user_compa + err = snd_ctl_elem_write(card, file, data); + snd_power_unlock(card); + if (err >= 0) +- err = copy_ctl_value_to_user(data32, data, type, count); ++ err = copy_ctl_value_to_user(userdata, valuep, data, ++ type, count); + error: + kfree(data); + return err; + } + ++static int snd_ctl_elem_read_user_compat(struct snd_card *card, ++ struct snd_ctl_elem_value32 __user *data32) ++{ ++ return ctl_elem_read_user(card, data32, &data32->value); ++} ++ ++static int snd_ctl_elem_write_user_compat(struct snd_ctl_file *file, ++ struct snd_ctl_elem_value32 __user *data32) ++{ ++ return ctl_elem_write_user(file, data32, &data32->value); ++} ++ ++#ifdef CONFIG_X86_X32 ++static int snd_ctl_elem_read_user_x32(struct snd_card *card, ++ struct snd_ctl_elem_value_x32 __user *data32) ++{ ++ return ctl_elem_read_user(card, data32, &data32->value); ++} ++ ++static int snd_ctl_elem_write_user_x32(struct snd_ctl_file *file, ++ struct snd_ctl_elem_value_x32 __user *data32) ++{ ++ return ctl_elem_write_user(file, data32, &data32->value); ++} ++#endif /* CONFIG_X86_X32 */ ++ + /* add or replace a user control */ + static int snd_ctl_elem_add_compat(struct snd_ctl_file *file, + struct snd_ctl_elem_info32 __user *data32, +@@ -393,6 +441,10 @@ enum { + SNDRV_CTL_IOCTL_ELEM_WRITE32 = _IOWR('U', 0x13, struct snd_ctl_elem_value32), + SNDRV_CTL_IOCTL_ELEM_ADD32 = _IOWR('U', 0x17, struct snd_ctl_elem_info32), + SNDRV_CTL_IOCTL_ELEM_REPLACE32 = _IOWR('U', 0x18, struct snd_ctl_elem_info32), ++#ifdef CONFIG_X86_X32 ++ SNDRV_CTL_IOCTL_ELEM_READ_X32 = _IOWR('U', 0x12, struct snd_ctl_elem_value_x32), ++ SNDRV_CTL_IOCTL_ELEM_WRITE_X32 = _IOWR('U', 0x13, struct snd_ctl_elem_value_x32), ++#endif /* CONFIG_X86_X32 */ + }; + + static inline long snd_ctl_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) +@@ -431,6 +483,12 @@ static inline long snd_ctl_ioctl_compat( + return snd_ctl_elem_add_compat(ctl, argp, 0); + case SNDRV_CTL_IOCTL_ELEM_REPLACE32: + return snd_ctl_elem_add_compat(ctl, argp, 1); ++#ifdef CONFIG_X86_X32 ++ case SNDRV_CTL_IOCTL_ELEM_READ_X32: ++ return snd_ctl_elem_read_user_x32(ctl->card, argp); ++ case SNDRV_CTL_IOCTL_ELEM_WRITE_X32: ++ return snd_ctl_elem_write_user_x32(ctl, argp); ++#endif /* CONFIG_X86_X32 */ + } + + down_read(&snd_ioctl_rwsem); +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/hrtimer.c linux-libre-4.4.7-gnu/sound/core/hrtimer.c +--- linux-libre-4.4-gnu/sound/core/hrtimer.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/hrtimer.c 2016-04-12 12:09:26.000000000 -0400 +@@ -90,7 +90,7 @@ static int snd_hrtimer_start(struct snd_ + struct snd_hrtimer *stime = t->private_data; + + atomic_set(&stime->running, 0); +- hrtimer_cancel(&stime->hrt); ++ hrtimer_try_to_cancel(&stime->hrt); + hrtimer_start(&stime->hrt, ns_to_ktime(t->sticks * resolution), + HRTIMER_MODE_REL); + atomic_set(&stime->running, 1); +@@ -101,6 +101,7 @@ static int snd_hrtimer_stop(struct snd_t + { + struct snd_hrtimer *stime = t->private_data; + atomic_set(&stime->running, 0); ++ hrtimer_try_to_cancel(&stime->hrt); + return 0; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/oss/pcm_oss.c linux-libre-4.4.7-gnu/sound/core/oss/pcm_oss.c +--- linux-libre-4.4-gnu/sound/core/oss/pcm_oss.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/oss/pcm_oss.c 2016-04-12 12:09:26.000000000 -0400 +@@ -834,7 +834,8 @@ static int choose_rate(struct snd_pcm_su + return snd_pcm_hw_param_near(substream, params, SNDRV_PCM_HW_PARAM_RATE, best_rate, NULL); + } + +-static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream) ++static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream, ++ bool trylock) + { + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_pcm_hw_params *params, *sparams; +@@ -848,7 +849,10 @@ static int snd_pcm_oss_change_params(str + struct snd_mask sformat_mask; + struct snd_mask mask; + +- if (mutex_lock_interruptible(&runtime->oss.params_lock)) ++ if (trylock) { ++ if (!(mutex_trylock(&runtime->oss.params_lock))) ++ return -EAGAIN; ++ } else if (mutex_lock_interruptible(&runtime->oss.params_lock)) + return -EINTR; + sw_params = kmalloc(sizeof(*sw_params), GFP_KERNEL); + params = kmalloc(sizeof(*params), GFP_KERNEL); +@@ -1092,7 +1096,7 @@ static int snd_pcm_oss_get_active_substr + if (asubstream == NULL) + asubstream = substream; + if (substream->runtime->oss.params) { +- err = snd_pcm_oss_change_params(substream); ++ err = snd_pcm_oss_change_params(substream, false); + if (err < 0) + return err; + } +@@ -1132,7 +1136,7 @@ static int snd_pcm_oss_make_ready(struct + return 0; + runtime = substream->runtime; + if (runtime->oss.params) { +- err = snd_pcm_oss_change_params(substream); ++ err = snd_pcm_oss_change_params(substream, false); + if (err < 0) + return err; + } +@@ -2163,7 +2167,7 @@ static int snd_pcm_oss_get_space(struct + runtime = substream->runtime; + + if (runtime->oss.params && +- (err = snd_pcm_oss_change_params(substream)) < 0) ++ (err = snd_pcm_oss_change_params(substream, false)) < 0) + return err; + + info.fragsize = runtime->oss.period_bytes; +@@ -2800,7 +2804,12 @@ static int snd_pcm_oss_mmap(struct file + return -EIO; + + if (runtime->oss.params) { +- if ((err = snd_pcm_oss_change_params(substream)) < 0) ++ /* use mutex_trylock() for params_lock for avoiding a deadlock ++ * between mmap_sem and params_lock taken by ++ * copy_from/to_user() in snd_pcm_oss_write/read() ++ */ ++ err = snd_pcm_oss_change_params(substream, true); ++ if (err < 0) + return err; + } + #ifdef CONFIG_SND_PCM_OSS_PLUGINS +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/pcm_compat.c linux-libre-4.4.7-gnu/sound/core/pcm_compat.c +--- linux-libre-4.4-gnu/sound/core/pcm_compat.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/pcm_compat.c 2016-04-12 12:09:26.000000000 -0400 +@@ -183,6 +183,14 @@ static int snd_pcm_ioctl_channel_info_co + return err; + } + ++#ifdef CONFIG_X86_X32 ++/* X32 ABI has the same struct as x86-64 for snd_pcm_channel_info */ ++static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream, ++ struct snd_pcm_channel_info __user *src); ++#define snd_pcm_ioctl_channel_info_x32(s, p) \ ++ snd_pcm_channel_info_user(s, p) ++#endif /* CONFIG_X86_X32 */ ++ + struct snd_pcm_status32 { + s32 state; + struct compat_timespec trigger_tstamp; +@@ -243,6 +251,71 @@ static int snd_pcm_status_user_compat(st + return err; + } + ++#ifdef CONFIG_X86_X32 ++/* X32 ABI has 64bit timespec and 64bit alignment */ ++struct snd_pcm_status_x32 { ++ s32 state; ++ u32 rsvd; /* alignment */ ++ struct timespec trigger_tstamp; ++ struct timespec tstamp; ++ u32 appl_ptr; ++ u32 hw_ptr; ++ s32 delay; ++ u32 avail; ++ u32 avail_max; ++ u32 overrange; ++ s32 suspended_state; ++ u32 audio_tstamp_data; ++ struct timespec audio_tstamp; ++ struct timespec driver_tstamp; ++ u32 audio_tstamp_accuracy; ++ unsigned char reserved[52-2*sizeof(struct timespec)]; ++} __packed; ++ ++#define put_timespec(src, dst) copy_to_user(dst, src, sizeof(*dst)) ++ ++static int snd_pcm_status_user_x32(struct snd_pcm_substream *substream, ++ struct snd_pcm_status_x32 __user *src, ++ bool ext) ++{ ++ struct snd_pcm_status status; ++ int err; ++ ++ memset(&status, 0, sizeof(status)); ++ /* ++ * with extension, parameters are read/write, ++ * get audio_tstamp_data from user, ++ * ignore rest of status structure ++ */ ++ if (ext && get_user(status.audio_tstamp_data, ++ (u32 __user *)(&src->audio_tstamp_data))) ++ return -EFAULT; ++ err = snd_pcm_status(substream, &status); ++ if (err < 0) ++ return err; ++ ++ if (clear_user(src, sizeof(*src))) ++ return -EFAULT; ++ if (put_user(status.state, &src->state) || ++ put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) || ++ put_timespec(&status.tstamp, &src->tstamp) || ++ put_user(status.appl_ptr, &src->appl_ptr) || ++ put_user(status.hw_ptr, &src->hw_ptr) || ++ put_user(status.delay, &src->delay) || ++ put_user(status.avail, &src->avail) || ++ put_user(status.avail_max, &src->avail_max) || ++ put_user(status.overrange, &src->overrange) || ++ put_user(status.suspended_state, &src->suspended_state) || ++ put_user(status.audio_tstamp_data, &src->audio_tstamp_data) || ++ put_timespec(&status.audio_tstamp, &src->audio_tstamp) || ++ put_timespec(&status.driver_tstamp, &src->driver_tstamp) || ++ put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy)) ++ return -EFAULT; ++ ++ return err; ++} ++#endif /* CONFIG_X86_X32 */ ++ + /* both for HW_PARAMS and HW_REFINE */ + static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream, + int refine, +@@ -255,10 +328,15 @@ static int snd_pcm_ioctl_hw_params_compa + if (! (runtime = substream->runtime)) + return -ENOTTY; + +- /* only fifo_size is different, so just copy all */ +- data = memdup_user(data32, sizeof(*data32)); +- if (IS_ERR(data)) +- return PTR_ERR(data); ++ data = kmalloc(sizeof(*data), GFP_KERNEL); ++ if (!data) ++ return -ENOMEM; ++ ++ /* only fifo_size (RO from userspace) is different, so just copy all */ ++ if (copy_from_user(data, data32, sizeof(*data32))) { ++ err = -EFAULT; ++ goto error; ++ } + + if (refine) + err = snd_pcm_hw_refine(substream, data); +@@ -464,6 +542,93 @@ static int snd_pcm_ioctl_sync_ptr_compat + return 0; + } + ++#ifdef CONFIG_X86_X32 ++/* X32 ABI has 64bit timespec and 64bit alignment */ ++struct snd_pcm_mmap_status_x32 { ++ s32 state; ++ s32 pad1; ++ u32 hw_ptr; ++ u32 pad2; /* alignment */ ++ struct timespec tstamp; ++ s32 suspended_state; ++ struct timespec audio_tstamp; ++} __packed; ++ ++struct snd_pcm_mmap_control_x32 { ++ u32 appl_ptr; ++ u32 avail_min; ++}; ++ ++struct snd_pcm_sync_ptr_x32 { ++ u32 flags; ++ u32 rsvd; /* alignment */ ++ union { ++ struct snd_pcm_mmap_status_x32 status; ++ unsigned char reserved[64]; ++ } s; ++ union { ++ struct snd_pcm_mmap_control_x32 control; ++ unsigned char reserved[64]; ++ } c; ++} __packed; ++ ++static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream, ++ struct snd_pcm_sync_ptr_x32 __user *src) ++{ ++ struct snd_pcm_runtime *runtime = substream->runtime; ++ volatile struct snd_pcm_mmap_status *status; ++ volatile struct snd_pcm_mmap_control *control; ++ u32 sflags; ++ struct snd_pcm_mmap_control scontrol; ++ struct snd_pcm_mmap_status sstatus; ++ snd_pcm_uframes_t boundary; ++ int err; ++ ++ if (snd_BUG_ON(!runtime)) ++ return -EINVAL; ++ ++ if (get_user(sflags, &src->flags) || ++ get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || ++ get_user(scontrol.avail_min, &src->c.control.avail_min)) ++ return -EFAULT; ++ if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) { ++ err = snd_pcm_hwsync(substream); ++ if (err < 0) ++ return err; ++ } ++ status = runtime->status; ++ control = runtime->control; ++ boundary = recalculate_boundary(runtime); ++ if (!boundary) ++ boundary = 0x7fffffff; ++ snd_pcm_stream_lock_irq(substream); ++ /* FIXME: we should consider the boundary for the sync from app */ ++ if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) ++ control->appl_ptr = scontrol.appl_ptr; ++ else ++ scontrol.appl_ptr = control->appl_ptr % boundary; ++ if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) ++ control->avail_min = scontrol.avail_min; ++ else ++ scontrol.avail_min = control->avail_min; ++ sstatus.state = status->state; ++ sstatus.hw_ptr = status->hw_ptr % boundary; ++ sstatus.tstamp = status->tstamp; ++ sstatus.suspended_state = status->suspended_state; ++ sstatus.audio_tstamp = status->audio_tstamp; ++ snd_pcm_stream_unlock_irq(substream); ++ if (put_user(sstatus.state, &src->s.status.state) || ++ put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) || ++ put_timespec(&sstatus.tstamp, &src->s.status.tstamp) || ++ put_user(sstatus.suspended_state, &src->s.status.suspended_state) || ++ put_timespec(&sstatus.audio_tstamp, &src->s.status.audio_tstamp) || ++ put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || ++ put_user(scontrol.avail_min, &src->c.control.avail_min)) ++ return -EFAULT; ++ ++ return 0; ++} ++#endif /* CONFIG_X86_X32 */ + + /* + */ +@@ -482,7 +647,12 @@ enum { + SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32), + SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32), + SNDRV_PCM_IOCTL_SYNC_PTR32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr32), +- ++#ifdef CONFIG_X86_X32 ++ SNDRV_PCM_IOCTL_CHANNEL_INFO_X32 = _IOR('A', 0x32, struct snd_pcm_channel_info), ++ SNDRV_PCM_IOCTL_STATUS_X32 = _IOR('A', 0x20, struct snd_pcm_status_x32), ++ SNDRV_PCM_IOCTL_STATUS_EXT_X32 = _IOWR('A', 0x24, struct snd_pcm_status_x32), ++ SNDRV_PCM_IOCTL_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32), ++#endif /* CONFIG_X86_X32 */ + }; + + static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) +@@ -554,6 +724,16 @@ static long snd_pcm_ioctl_compat(struct + return snd_pcm_ioctl_rewind_compat(substream, argp); + case SNDRV_PCM_IOCTL_FORWARD32: + return snd_pcm_ioctl_forward_compat(substream, argp); ++#ifdef CONFIG_X86_X32 ++ case SNDRV_PCM_IOCTL_STATUS_X32: ++ return snd_pcm_status_user_x32(substream, argp, false); ++ case SNDRV_PCM_IOCTL_STATUS_EXT_X32: ++ return snd_pcm_status_user_x32(substream, argp, true); ++ case SNDRV_PCM_IOCTL_SYNC_PTR_X32: ++ return snd_pcm_ioctl_sync_ptr_x32(substream, argp); ++ case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32: ++ return snd_pcm_ioctl_channel_info_x32(substream, argp); ++#endif /* CONFIG_X86_X32 */ + } + + return -ENOIOCTLCMD; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/pcm_lib.c linux-libre-4.4.7-gnu/sound/core/pcm_lib.c +--- linux-libre-4.4-gnu/sound/core/pcm_lib.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/pcm_lib.c 2016-04-12 12:09:26.000000000 -0400 +@@ -322,7 +322,7 @@ static int snd_pcm_update_hw_ptr0(struct + char name[16]; + snd_pcm_debug_name(substream, name, sizeof(name)); + pcm_err(substream->pcm, +- "BUG: %s, pos = %ld, buffer size = %ld, period size = %ld\n", ++ "invalid position: %s, pos = %ld, buffer size = %ld, period size = %ld\n", + name, pos, runtime->buffer_size, + runtime->period_size); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/pcm_native.c linux-libre-4.4.7-gnu/sound/core/pcm_native.c +--- linux-libre-4.4-gnu/sound/core/pcm_native.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/pcm_native.c 2016-04-12 12:09:26.000000000 -0400 +@@ -74,6 +74,18 @@ static int snd_pcm_open(struct file *fil + static DEFINE_RWLOCK(snd_pcm_link_rwlock); + static DECLARE_RWSEM(snd_pcm_link_rwsem); + ++/* Writer in rwsem may block readers even during its waiting in queue, ++ * and this may lead to a deadlock when the code path takes read sem ++ * twice (e.g. one in snd_pcm_action_nonatomic() and another in ++ * snd_pcm_stream_lock()). As a (suboptimal) workaround, let writer to ++ * spin until it gets the lock. ++ */ ++static inline void down_write_nonblock(struct rw_semaphore *lock) ++{ ++ while (!down_write_trylock(lock)) ++ cond_resched(); ++} ++ + /** + * snd_pcm_stream_lock - Lock the PCM stream + * @substream: PCM substream +@@ -1813,7 +1825,7 @@ static int snd_pcm_link(struct snd_pcm_s + res = -ENOMEM; + goto _nolock; + } +- down_write(&snd_pcm_link_rwsem); ++ down_write_nonblock(&snd_pcm_link_rwsem); + write_lock_irq(&snd_pcm_link_rwlock); + if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN || + substream->runtime->status->state != substream1->runtime->status->state || +@@ -1860,7 +1872,7 @@ static int snd_pcm_unlink(struct snd_pcm + struct snd_pcm_substream *s; + int res = 0; + +- down_write(&snd_pcm_link_rwsem); ++ down_write_nonblock(&snd_pcm_link_rwsem); + write_lock_irq(&snd_pcm_link_rwlock); + if (!snd_pcm_stream_linked(substream)) { + res = -EALREADY; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/rawmidi.c linux-libre-4.4.7-gnu/sound/core/rawmidi.c +--- linux-libre-4.4-gnu/sound/core/rawmidi.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/rawmidi.c 2016-04-12 12:09:26.000000000 -0400 +@@ -942,31 +942,36 @@ static long snd_rawmidi_kernel_read1(str + unsigned long flags; + long result = 0, count1; + struct snd_rawmidi_runtime *runtime = substream->runtime; ++ unsigned long appl_ptr; + ++ spin_lock_irqsave(&runtime->lock, flags); + while (count > 0 && runtime->avail) { + count1 = runtime->buffer_size - runtime->appl_ptr; + if (count1 > count) + count1 = count; +- spin_lock_irqsave(&runtime->lock, flags); + if (count1 > (int)runtime->avail) + count1 = runtime->avail; ++ ++ /* update runtime->appl_ptr before unlocking for userbuf */ ++ appl_ptr = runtime->appl_ptr; ++ runtime->appl_ptr += count1; ++ runtime->appl_ptr %= runtime->buffer_size; ++ runtime->avail -= count1; ++ + if (kernelbuf) +- memcpy(kernelbuf + result, runtime->buffer + runtime->appl_ptr, count1); ++ memcpy(kernelbuf + result, runtime->buffer + appl_ptr, count1); + if (userbuf) { + spin_unlock_irqrestore(&runtime->lock, flags); + if (copy_to_user(userbuf + result, +- runtime->buffer + runtime->appl_ptr, count1)) { ++ runtime->buffer + appl_ptr, count1)) { + return result > 0 ? result : -EFAULT; + } + spin_lock_irqsave(&runtime->lock, flags); + } +- runtime->appl_ptr += count1; +- runtime->appl_ptr %= runtime->buffer_size; +- runtime->avail -= count1; +- spin_unlock_irqrestore(&runtime->lock, flags); + result += count1; + count -= count1; + } ++ spin_unlock_irqrestore(&runtime->lock, flags); + return result; + } + +@@ -1055,23 +1060,16 @@ int snd_rawmidi_transmit_empty(struct sn + EXPORT_SYMBOL(snd_rawmidi_transmit_empty); + + /** +- * snd_rawmidi_transmit_peek - copy data from the internal buffer ++ * __snd_rawmidi_transmit_peek - copy data from the internal buffer + * @substream: the rawmidi substream + * @buffer: the buffer pointer + * @count: data size to transfer + * +- * Copies data from the internal output buffer to the given buffer. +- * +- * Call this in the interrupt handler when the midi output is ready, +- * and call snd_rawmidi_transmit_ack() after the transmission is +- * finished. +- * +- * Return: The size of copied data, or a negative error code on failure. ++ * This is a variant of snd_rawmidi_transmit_peek() without spinlock. + */ +-int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream, ++int __snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream, + unsigned char *buffer, int count) + { +- unsigned long flags; + int result, count1; + struct snd_rawmidi_runtime *runtime = substream->runtime; + +@@ -1081,7 +1079,6 @@ int snd_rawmidi_transmit_peek(struct snd + return -EINVAL; + } + result = 0; +- spin_lock_irqsave(&runtime->lock, flags); + if (runtime->avail >= runtime->buffer_size) { + /* warning: lowlevel layer MUST trigger down the hardware */ + goto __skip; +@@ -1106,25 +1103,47 @@ int snd_rawmidi_transmit_peek(struct snd + } + } + __skip: ++ return result; ++} ++EXPORT_SYMBOL(__snd_rawmidi_transmit_peek); ++ ++/** ++ * snd_rawmidi_transmit_peek - copy data from the internal buffer ++ * @substream: the rawmidi substream ++ * @buffer: the buffer pointer ++ * @count: data size to transfer ++ * ++ * Copies data from the internal output buffer to the given buffer. ++ * ++ * Call this in the interrupt handler when the midi output is ready, ++ * and call snd_rawmidi_transmit_ack() after the transmission is ++ * finished. ++ * ++ * Return: The size of copied data, or a negative error code on failure. ++ */ ++int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream, ++ unsigned char *buffer, int count) ++{ ++ struct snd_rawmidi_runtime *runtime = substream->runtime; ++ int result; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&runtime->lock, flags); ++ result = __snd_rawmidi_transmit_peek(substream, buffer, count); + spin_unlock_irqrestore(&runtime->lock, flags); + return result; + } + EXPORT_SYMBOL(snd_rawmidi_transmit_peek); + + /** +- * snd_rawmidi_transmit_ack - acknowledge the transmission ++ * __snd_rawmidi_transmit_ack - acknowledge the transmission + * @substream: the rawmidi substream + * @count: the transferred count + * +- * Advances the hardware pointer for the internal output buffer with +- * the given size and updates the condition. +- * Call after the transmission is finished. +- * +- * Return: The advanced size if successful, or a negative error code on failure. ++ * This is a variant of __snd_rawmidi_transmit_ack() without spinlock. + */ +-int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count) ++int __snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count) + { +- unsigned long flags; + struct snd_rawmidi_runtime *runtime = substream->runtime; + + if (runtime->buffer == NULL) { +@@ -1132,7 +1151,6 @@ int snd_rawmidi_transmit_ack(struct snd_ + "snd_rawmidi_transmit_ack: output is not active!!!\n"); + return -EINVAL; + } +- spin_lock_irqsave(&runtime->lock, flags); + snd_BUG_ON(runtime->avail + count > runtime->buffer_size); + runtime->hw_ptr += count; + runtime->hw_ptr %= runtime->buffer_size; +@@ -1142,9 +1160,32 @@ int snd_rawmidi_transmit_ack(struct snd_ + if (runtime->drain || snd_rawmidi_ready(substream)) + wake_up(&runtime->sleep); + } +- spin_unlock_irqrestore(&runtime->lock, flags); + return count; + } ++EXPORT_SYMBOL(__snd_rawmidi_transmit_ack); ++ ++/** ++ * snd_rawmidi_transmit_ack - acknowledge the transmission ++ * @substream: the rawmidi substream ++ * @count: the transferred count ++ * ++ * Advances the hardware pointer for the internal output buffer with ++ * the given size and updates the condition. ++ * Call after the transmission is finished. ++ * ++ * Return: The advanced size if successful, or a negative error code on failure. ++ */ ++int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count) ++{ ++ struct snd_rawmidi_runtime *runtime = substream->runtime; ++ int result; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&runtime->lock, flags); ++ result = __snd_rawmidi_transmit_ack(substream, count); ++ spin_unlock_irqrestore(&runtime->lock, flags); ++ return result; ++} + EXPORT_SYMBOL(snd_rawmidi_transmit_ack); + + /** +@@ -1160,12 +1201,22 @@ EXPORT_SYMBOL(snd_rawmidi_transmit_ack); + int snd_rawmidi_transmit(struct snd_rawmidi_substream *substream, + unsigned char *buffer, int count) + { ++ struct snd_rawmidi_runtime *runtime = substream->runtime; ++ int result; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&runtime->lock, flags); + if (!substream->opened) +- return -EBADFD; +- count = snd_rawmidi_transmit_peek(substream, buffer, count); +- if (count < 0) +- return count; +- return snd_rawmidi_transmit_ack(substream, count); ++ result = -EBADFD; ++ else { ++ count = __snd_rawmidi_transmit_peek(substream, buffer, count); ++ if (count <= 0) ++ result = count; ++ else ++ result = __snd_rawmidi_transmit_ack(substream, count); ++ } ++ spin_unlock_irqrestore(&runtime->lock, flags); ++ return result; + } + EXPORT_SYMBOL(snd_rawmidi_transmit); + +@@ -1177,8 +1228,9 @@ static long snd_rawmidi_kernel_write1(st + unsigned long flags; + long count1, result; + struct snd_rawmidi_runtime *runtime = substream->runtime; ++ unsigned long appl_ptr; + +- if (snd_BUG_ON(!kernelbuf && !userbuf)) ++ if (!kernelbuf && !userbuf) + return -EINVAL; + if (snd_BUG_ON(!runtime->buffer)) + return -EINVAL; +@@ -1197,12 +1249,19 @@ static long snd_rawmidi_kernel_write1(st + count1 = count; + if (count1 > (long)runtime->avail) + count1 = runtime->avail; ++ ++ /* update runtime->appl_ptr before unlocking for userbuf */ ++ appl_ptr = runtime->appl_ptr; ++ runtime->appl_ptr += count1; ++ runtime->appl_ptr %= runtime->buffer_size; ++ runtime->avail -= count1; ++ + if (kernelbuf) +- memcpy(runtime->buffer + runtime->appl_ptr, ++ memcpy(runtime->buffer + appl_ptr, + kernelbuf + result, count1); + else if (userbuf) { + spin_unlock_irqrestore(&runtime->lock, flags); +- if (copy_from_user(runtime->buffer + runtime->appl_ptr, ++ if (copy_from_user(runtime->buffer + appl_ptr, + userbuf + result, count1)) { + spin_lock_irqsave(&runtime->lock, flags); + result = result > 0 ? result : -EFAULT; +@@ -1210,9 +1269,6 @@ static long snd_rawmidi_kernel_write1(st + } + spin_lock_irqsave(&runtime->lock, flags); + } +- runtime->appl_ptr += count1; +- runtime->appl_ptr %= runtime->buffer_size; +- runtime->avail -= count1; + result += count1; + count -= count1; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/rawmidi_compat.c linux-libre-4.4.7-gnu/sound/core/rawmidi_compat.c +--- linux-libre-4.4-gnu/sound/core/rawmidi_compat.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/rawmidi_compat.c 2016-04-12 12:09:26.000000000 -0400 +@@ -94,9 +94,58 @@ static int snd_rawmidi_ioctl_status_comp + return 0; + } + ++#ifdef CONFIG_X86_X32 ++/* X32 ABI has 64bit timespec and 64bit alignment */ ++struct snd_rawmidi_status_x32 { ++ s32 stream; ++ u32 rsvd; /* alignment */ ++ struct timespec tstamp; ++ u32 avail; ++ u32 xruns; ++ unsigned char reserved[16]; ++} __attribute__((packed)); ++ ++#define put_timespec(src, dst) copy_to_user(dst, src, sizeof(*dst)) ++ ++static int snd_rawmidi_ioctl_status_x32(struct snd_rawmidi_file *rfile, ++ struct snd_rawmidi_status_x32 __user *src) ++{ ++ int err; ++ struct snd_rawmidi_status status; ++ ++ if (rfile->output == NULL) ++ return -EINVAL; ++ if (get_user(status.stream, &src->stream)) ++ return -EFAULT; ++ ++ switch (status.stream) { ++ case SNDRV_RAWMIDI_STREAM_OUTPUT: ++ err = snd_rawmidi_output_status(rfile->output, &status); ++ break; ++ case SNDRV_RAWMIDI_STREAM_INPUT: ++ err = snd_rawmidi_input_status(rfile->input, &status); ++ break; ++ default: ++ return -EINVAL; ++ } ++ if (err < 0) ++ return err; ++ ++ if (put_timespec(&status.tstamp, &src->tstamp) || ++ put_user(status.avail, &src->avail) || ++ put_user(status.xruns, &src->xruns)) ++ return -EFAULT; ++ ++ return 0; ++} ++#endif /* CONFIG_X86_X32 */ ++ + enum { + SNDRV_RAWMIDI_IOCTL_PARAMS32 = _IOWR('W', 0x10, struct snd_rawmidi_params32), + SNDRV_RAWMIDI_IOCTL_STATUS32 = _IOWR('W', 0x20, struct snd_rawmidi_status32), ++#ifdef CONFIG_X86_X32 ++ SNDRV_RAWMIDI_IOCTL_STATUS_X32 = _IOWR('W', 0x20, struct snd_rawmidi_status_x32), ++#endif /* CONFIG_X86_X32 */ + }; + + static long snd_rawmidi_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) +@@ -115,6 +164,10 @@ static long snd_rawmidi_ioctl_compat(str + return snd_rawmidi_ioctl_params_compat(rfile, argp); + case SNDRV_RAWMIDI_IOCTL_STATUS32: + return snd_rawmidi_ioctl_status_compat(rfile, argp); ++#ifdef CONFIG_X86_X32 ++ case SNDRV_RAWMIDI_IOCTL_STATUS_X32: ++ return snd_rawmidi_ioctl_status_x32(rfile, argp); ++#endif /* CONFIG_X86_X32 */ + } + return -ENOIOCTLCMD; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/seq/oss/seq_oss.c linux-libre-4.4.7-gnu/sound/core/seq/oss/seq_oss.c +--- linux-libre-4.4-gnu/sound/core/seq/oss/seq_oss.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/seq/oss/seq_oss.c 2016-04-12 12:09:26.000000000 -0400 +@@ -148,8 +148,6 @@ odev_release(struct inode *inode, struct + if ((dp = file->private_data) == NULL) + return 0; + +- snd_seq_oss_drain_write(dp); +- + mutex_lock(®ister_mutex); + snd_seq_oss_release(dp); + mutex_unlock(®ister_mutex); +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/seq/oss/seq_oss_device.h linux-libre-4.4.7-gnu/sound/core/seq/oss/seq_oss_device.h +--- linux-libre-4.4-gnu/sound/core/seq/oss/seq_oss_device.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/seq/oss/seq_oss_device.h 2016-04-12 12:09:26.000000000 -0400 +@@ -127,7 +127,6 @@ int snd_seq_oss_write(struct seq_oss_dev + unsigned int snd_seq_oss_poll(struct seq_oss_devinfo *dp, struct file *file, poll_table * wait); + + void snd_seq_oss_reset(struct seq_oss_devinfo *dp); +-void snd_seq_oss_drain_write(struct seq_oss_devinfo *dp); + + /* */ + void snd_seq_oss_process_queue(struct seq_oss_devinfo *dp, abstime_t time); +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/seq/oss/seq_oss_init.c linux-libre-4.4.7-gnu/sound/core/seq/oss/seq_oss_init.c +--- linux-libre-4.4-gnu/sound/core/seq/oss/seq_oss_init.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/seq/oss/seq_oss_init.c 2016-04-12 12:09:26.000000000 -0400 +@@ -202,7 +202,7 @@ snd_seq_oss_open(struct file *file, int + + dp->index = i; + if (i >= SNDRV_SEQ_OSS_MAX_CLIENTS) { +- pr_err("ALSA: seq_oss: too many applications\n"); ++ pr_debug("ALSA: seq_oss: too many applications\n"); + rc = -ENOMEM; + goto _error; + } +@@ -435,22 +435,6 @@ snd_seq_oss_release(struct seq_oss_devin + } + + +-/* +- * Wait until the queue is empty (if we don't have nonblock) +- */ +-void +-snd_seq_oss_drain_write(struct seq_oss_devinfo *dp) +-{ +- if (! dp->timer->running) +- return; +- if (is_write_mode(dp->file_mode) && !is_nonblock_mode(dp->file_mode) && +- dp->writeq) { +- while (snd_seq_oss_writeq_sync(dp->writeq)) +- ; +- } +-} +- +- + /* + * reset sequencer devices + */ +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/seq/oss/seq_oss_synth.c linux-libre-4.4.7-gnu/sound/core/seq/oss/seq_oss_synth.c +--- linux-libre-4.4-gnu/sound/core/seq/oss/seq_oss_synth.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/seq/oss/seq_oss_synth.c 2016-04-12 12:09:26.000000000 -0400 +@@ -308,7 +308,7 @@ snd_seq_oss_synth_cleanup(struct seq_oss + struct seq_oss_synth *rec; + struct seq_oss_synthinfo *info; + +- if (snd_BUG_ON(dp->max_synthdev >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS)) ++ if (snd_BUG_ON(dp->max_synthdev > SNDRV_SEQ_OSS_MAX_SYNTH_DEVS)) + return; + for (i = 0; i < dp->max_synthdev; i++) { + info = &dp->synths[i]; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/seq/seq_clientmgr.c linux-libre-4.4.7-gnu/sound/core/seq/seq_clientmgr.c +--- linux-libre-4.4-gnu/sound/core/seq/seq_clientmgr.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/seq/seq_clientmgr.c 2016-04-12 12:09:26.000000000 -0400 +@@ -678,6 +678,9 @@ static int deliver_to_subscribers(struct + else + down_read(&grp->list_mutex); + list_for_each_entry(subs, &grp->list_head, src_list) { ++ /* both ports ready? */ ++ if (atomic_read(&subs->ref_count) != 2) ++ continue; + event->dest = subs->info.dest; + if (subs->info.flags & SNDRV_SEQ_PORT_SUBS_TIMESTAMP) + /* convert time according to flag with subscription */ +@@ -1962,7 +1965,7 @@ static int snd_seq_ioctl_remove_events(s + * No restrictions so for a user client we can clear + * the whole fifo + */ +- if (client->type == USER_CLIENT) ++ if (client->type == USER_CLIENT && client->data.user.fifo) + snd_seq_fifo_clear(client->data.user.fifo); + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/seq/seq_compat.c linux-libre-4.4.7-gnu/sound/core/seq/seq_compat.c +--- linux-libre-4.4-gnu/sound/core/seq/seq_compat.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/seq/seq_compat.c 2016-04-12 12:09:26.000000000 -0400 +@@ -49,11 +49,12 @@ static int snd_seq_call_port_info_ioctl( + struct snd_seq_port_info *data; + mm_segment_t fs; + +- data = memdup_user(data32, sizeof(*data32)); +- if (IS_ERR(data)) +- return PTR_ERR(data); ++ data = kmalloc(sizeof(*data), GFP_KERNEL); ++ if (!data) ++ return -ENOMEM; + +- if (get_user(data->flags, &data32->flags) || ++ if (copy_from_user(data, data32, sizeof(*data32)) || ++ get_user(data->flags, &data32->flags) || + get_user(data->time_queue, &data32->time_queue)) + goto error; + data->kernel = NULL; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/seq/seq_memory.c linux-libre-4.4.7-gnu/sound/core/seq/seq_memory.c +--- linux-libre-4.4-gnu/sound/core/seq/seq_memory.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/seq/seq_memory.c 2016-04-12 12:09:26.000000000 -0400 +@@ -383,15 +383,20 @@ int snd_seq_pool_init(struct snd_seq_poo + + if (snd_BUG_ON(!pool)) + return -EINVAL; +- if (pool->ptr) /* should be atomic? */ +- return 0; + +- pool->ptr = vmalloc(sizeof(struct snd_seq_event_cell) * pool->size); +- if (!pool->ptr) ++ cellptr = vmalloc(sizeof(struct snd_seq_event_cell) * pool->size); ++ if (!cellptr) + return -ENOMEM; + + /* add new cells to the free cell list */ + spin_lock_irqsave(&pool->lock, flags); ++ if (pool->ptr) { ++ spin_unlock_irqrestore(&pool->lock, flags); ++ vfree(cellptr); ++ return 0; ++ } ++ ++ pool->ptr = cellptr; + pool->free = NULL; + + for (cell = 0; cell < pool->size; cell++) { +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/seq/seq_ports.c linux-libre-4.4.7-gnu/sound/core/seq/seq_ports.c +--- linux-libre-4.4-gnu/sound/core/seq/seq_ports.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/seq/seq_ports.c 2016-04-12 12:09:26.000000000 -0400 +@@ -173,10 +173,6 @@ struct snd_seq_client_port *snd_seq_crea + } + + /* */ +-enum group_type { +- SRC_LIST, DEST_LIST +-}; +- + static int subscribe_port(struct snd_seq_client *client, + struct snd_seq_client_port *port, + struct snd_seq_port_subs_info *grp, +@@ -203,6 +199,20 @@ static struct snd_seq_client_port *get_c + return NULL; + } + ++static void delete_and_unsubscribe_port(struct snd_seq_client *client, ++ struct snd_seq_client_port *port, ++ struct snd_seq_subscribers *subs, ++ bool is_src, bool ack); ++ ++static inline struct snd_seq_subscribers * ++get_subscriber(struct list_head *p, bool is_src) ++{ ++ if (is_src) ++ return list_entry(p, struct snd_seq_subscribers, src_list); ++ else ++ return list_entry(p, struct snd_seq_subscribers, dest_list); ++} ++ + /* + * remove all subscribers on the list + * this is called from port_delete, for each src and dest list. +@@ -210,7 +220,7 @@ static struct snd_seq_client_port *get_c + static void clear_subscriber_list(struct snd_seq_client *client, + struct snd_seq_client_port *port, + struct snd_seq_port_subs_info *grp, +- int grptype) ++ int is_src) + { + struct list_head *p, *n; + +@@ -219,15 +229,13 @@ static void clear_subscriber_list(struct + struct snd_seq_client *c; + struct snd_seq_client_port *aport; + +- if (grptype == SRC_LIST) { +- subs = list_entry(p, struct snd_seq_subscribers, src_list); ++ subs = get_subscriber(p, is_src); ++ if (is_src) + aport = get_client_port(&subs->info.dest, &c); +- } else { +- subs = list_entry(p, struct snd_seq_subscribers, dest_list); ++ else + aport = get_client_port(&subs->info.sender, &c); +- } +- list_del(p); +- unsubscribe_port(client, port, grp, &subs->info, 0); ++ delete_and_unsubscribe_port(client, port, subs, is_src, false); ++ + if (!aport) { + /* looks like the connected port is being deleted. + * we decrease the counter, and when both ports are deleted +@@ -235,21 +243,14 @@ static void clear_subscriber_list(struct + */ + if (atomic_dec_and_test(&subs->ref_count)) + kfree(subs); +- } else { +- /* ok we got the connected port */ +- struct snd_seq_port_subs_info *agrp; +- agrp = (grptype == SRC_LIST) ? &aport->c_dest : &aport->c_src; +- down_write(&agrp->list_mutex); +- if (grptype == SRC_LIST) +- list_del(&subs->dest_list); +- else +- list_del(&subs->src_list); +- up_write(&agrp->list_mutex); +- unsubscribe_port(c, aport, agrp, &subs->info, 1); +- kfree(subs); +- snd_seq_port_unlock(aport); +- snd_seq_client_unlock(c); ++ continue; + } ++ ++ /* ok we got the connected port */ ++ delete_and_unsubscribe_port(c, aport, subs, !is_src, true); ++ kfree(subs); ++ snd_seq_port_unlock(aport); ++ snd_seq_client_unlock(c); + } + } + +@@ -262,8 +263,8 @@ static int port_delete(struct snd_seq_cl + snd_use_lock_sync(&port->use_lock); + + /* clear subscribers info */ +- clear_subscriber_list(client, port, &port->c_src, SRC_LIST); +- clear_subscriber_list(client, port, &port->c_dest, DEST_LIST); ++ clear_subscriber_list(client, port, &port->c_src, true); ++ clear_subscriber_list(client, port, &port->c_dest, false); + + if (port->private_free) + port->private_free(port->private_data); +@@ -479,85 +480,123 @@ static int match_subs_info(struct snd_se + return 0; + } + +- +-/* connect two ports */ +-int snd_seq_port_connect(struct snd_seq_client *connector, +- struct snd_seq_client *src_client, +- struct snd_seq_client_port *src_port, +- struct snd_seq_client *dest_client, +- struct snd_seq_client_port *dest_port, +- struct snd_seq_port_subscribe *info) ++static int check_and_subscribe_port(struct snd_seq_client *client, ++ struct snd_seq_client_port *port, ++ struct snd_seq_subscribers *subs, ++ bool is_src, bool exclusive, bool ack) + { +- struct snd_seq_port_subs_info *src = &src_port->c_src; +- struct snd_seq_port_subs_info *dest = &dest_port->c_dest; +- struct snd_seq_subscribers *subs, *s; +- int err, src_called = 0; +- unsigned long flags; +- int exclusive; +- +- subs = kzalloc(sizeof(*subs), GFP_KERNEL); +- if (! subs) +- return -ENOMEM; +- +- subs->info = *info; +- atomic_set(&subs->ref_count, 2); +- +- down_write(&src->list_mutex); +- down_write_nested(&dest->list_mutex, SINGLE_DEPTH_NESTING); ++ struct snd_seq_port_subs_info *grp; ++ struct list_head *p; ++ struct snd_seq_subscribers *s; ++ int err; + +- exclusive = info->flags & SNDRV_SEQ_PORT_SUBS_EXCLUSIVE ? 1 : 0; ++ grp = is_src ? &port->c_src : &port->c_dest; + err = -EBUSY; ++ down_write(&grp->list_mutex); + if (exclusive) { +- if (! list_empty(&src->list_head) || ! list_empty(&dest->list_head)) ++ if (!list_empty(&grp->list_head)) + goto __error; + } else { +- if (src->exclusive || dest->exclusive) ++ if (grp->exclusive) + goto __error; + /* check whether already exists */ +- list_for_each_entry(s, &src->list_head, src_list) { +- if (match_subs_info(info, &s->info)) +- goto __error; +- } +- list_for_each_entry(s, &dest->list_head, dest_list) { +- if (match_subs_info(info, &s->info)) ++ list_for_each(p, &grp->list_head) { ++ s = get_subscriber(p, is_src); ++ if (match_subs_info(&subs->info, &s->info)) + goto __error; + } + } + +- if ((err = subscribe_port(src_client, src_port, src, info, +- connector->number != src_client->number)) < 0) +- goto __error; +- src_called = 1; +- +- if ((err = subscribe_port(dest_client, dest_port, dest, info, +- connector->number != dest_client->number)) < 0) ++ err = subscribe_port(client, port, grp, &subs->info, ack); ++ if (err < 0) { ++ grp->exclusive = 0; + goto __error; ++ } + + /* add to list */ +- write_lock_irqsave(&src->list_lock, flags); +- // write_lock(&dest->list_lock); // no other lock yet +- list_add_tail(&subs->src_list, &src->list_head); +- list_add_tail(&subs->dest_list, &dest->list_head); +- // write_unlock(&dest->list_lock); // no other lock yet +- write_unlock_irqrestore(&src->list_lock, flags); ++ write_lock_irq(&grp->list_lock); ++ if (is_src) ++ list_add_tail(&subs->src_list, &grp->list_head); ++ else ++ list_add_tail(&subs->dest_list, &grp->list_head); ++ grp->exclusive = exclusive; ++ atomic_inc(&subs->ref_count); ++ write_unlock_irq(&grp->list_lock); ++ err = 0; + +- src->exclusive = dest->exclusive = exclusive; ++ __error: ++ up_write(&grp->list_mutex); ++ return err; ++} ++ ++static void delete_and_unsubscribe_port(struct snd_seq_client *client, ++ struct snd_seq_client_port *port, ++ struct snd_seq_subscribers *subs, ++ bool is_src, bool ack) ++{ ++ struct snd_seq_port_subs_info *grp; ++ struct list_head *list; ++ bool empty; ++ ++ grp = is_src ? &port->c_src : &port->c_dest; ++ list = is_src ? &subs->src_list : &subs->dest_list; ++ down_write(&grp->list_mutex); ++ write_lock_irq(&grp->list_lock); ++ empty = list_empty(list); ++ if (!empty) ++ list_del_init(list); ++ grp->exclusive = 0; ++ write_unlock_irq(&grp->list_lock); ++ up_write(&grp->list_mutex); ++ ++ if (!empty) ++ unsubscribe_port(client, port, grp, &subs->info, ack); ++} ++ ++/* connect two ports */ ++int snd_seq_port_connect(struct snd_seq_client *connector, ++ struct snd_seq_client *src_client, ++ struct snd_seq_client_port *src_port, ++ struct snd_seq_client *dest_client, ++ struct snd_seq_client_port *dest_port, ++ struct snd_seq_port_subscribe *info) ++{ ++ struct snd_seq_subscribers *subs; ++ bool exclusive; ++ int err; ++ ++ subs = kzalloc(sizeof(*subs), GFP_KERNEL); ++ if (!subs) ++ return -ENOMEM; ++ ++ subs->info = *info; ++ atomic_set(&subs->ref_count, 0); ++ INIT_LIST_HEAD(&subs->src_list); ++ INIT_LIST_HEAD(&subs->dest_list); ++ ++ exclusive = !!(info->flags & SNDRV_SEQ_PORT_SUBS_EXCLUSIVE); ++ ++ err = check_and_subscribe_port(src_client, src_port, subs, true, ++ exclusive, ++ connector->number != src_client->number); ++ if (err < 0) ++ goto error; ++ err = check_and_subscribe_port(dest_client, dest_port, subs, false, ++ exclusive, ++ connector->number != dest_client->number); ++ if (err < 0) ++ goto error_dest; + +- up_write(&dest->list_mutex); +- up_write(&src->list_mutex); + return 0; + +- __error: +- if (src_called) +- unsubscribe_port(src_client, src_port, src, info, +- connector->number != src_client->number); ++ error_dest: ++ delete_and_unsubscribe_port(src_client, src_port, subs, true, ++ connector->number != src_client->number); ++ error: + kfree(subs); +- up_write(&dest->list_mutex); +- up_write(&src->list_mutex); + return err; + } + +- + /* remove the connection */ + int snd_seq_port_disconnect(struct snd_seq_client *connector, + struct snd_seq_client *src_client, +@@ -567,37 +606,28 @@ int snd_seq_port_disconnect(struct snd_s + struct snd_seq_port_subscribe *info) + { + struct snd_seq_port_subs_info *src = &src_port->c_src; +- struct snd_seq_port_subs_info *dest = &dest_port->c_dest; + struct snd_seq_subscribers *subs; + int err = -ENOENT; +- unsigned long flags; + + down_write(&src->list_mutex); +- down_write_nested(&dest->list_mutex, SINGLE_DEPTH_NESTING); +- + /* look for the connection */ + list_for_each_entry(subs, &src->list_head, src_list) { + if (match_subs_info(info, &subs->info)) { +- write_lock_irqsave(&src->list_lock, flags); +- // write_lock(&dest->list_lock); // no lock yet +- list_del(&subs->src_list); +- list_del(&subs->dest_list); +- // write_unlock(&dest->list_lock); +- write_unlock_irqrestore(&src->list_lock, flags); +- src->exclusive = dest->exclusive = 0; +- unsubscribe_port(src_client, src_port, src, info, +- connector->number != src_client->number); +- unsubscribe_port(dest_client, dest_port, dest, info, +- connector->number != dest_client->number); +- kfree(subs); ++ atomic_dec(&subs->ref_count); /* mark as not ready */ + err = 0; + break; + } + } +- +- up_write(&dest->list_mutex); + up_write(&src->list_mutex); +- return err; ++ if (err < 0) ++ return err; ++ ++ delete_and_unsubscribe_port(src_client, src_port, subs, true, ++ connector->number != src_client->number); ++ delete_and_unsubscribe_port(dest_client, dest_port, subs, false, ++ connector->number != dest_client->number); ++ kfree(subs); ++ return 0; + } + + +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/seq/seq_queue.c linux-libre-4.4.7-gnu/sound/core/seq/seq_queue.c +--- linux-libre-4.4-gnu/sound/core/seq/seq_queue.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/seq/seq_queue.c 2016-04-12 12:09:26.000000000 -0400 +@@ -142,8 +142,10 @@ static struct snd_seq_queue *queue_new(i + static void queue_delete(struct snd_seq_queue *q) + { + /* stop and release the timer */ ++ mutex_lock(&q->timer_mutex); + snd_seq_timer_stop(q->timer); + snd_seq_timer_close(q); ++ mutex_unlock(&q->timer_mutex); + /* wait until access free */ + snd_use_lock_sync(&q->use_lock); + /* release resources... */ +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/seq/seq_timer.c linux-libre-4.4.7-gnu/sound/core/seq/seq_timer.c +--- linux-libre-4.4-gnu/sound/core/seq/seq_timer.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/seq/seq_timer.c 2016-04-12 12:09:26.000000000 -0400 +@@ -90,6 +90,9 @@ void snd_seq_timer_delete(struct snd_seq + + void snd_seq_timer_defaults(struct snd_seq_timer * tmr) + { ++ unsigned long flags; ++ ++ spin_lock_irqsave(&tmr->lock, flags); + /* setup defaults */ + tmr->ppq = 96; /* 96 PPQ */ + tmr->tempo = 500000; /* 120 BPM */ +@@ -105,21 +108,25 @@ void snd_seq_timer_defaults(struct snd_s + tmr->preferred_resolution = seq_default_timer_resolution; + + tmr->skew = tmr->skew_base = SKEW_BASE; ++ spin_unlock_irqrestore(&tmr->lock, flags); + } + +-void snd_seq_timer_reset(struct snd_seq_timer * tmr) ++static void seq_timer_reset(struct snd_seq_timer *tmr) + { +- unsigned long flags; +- +- spin_lock_irqsave(&tmr->lock, flags); +- + /* reset time & songposition */ + tmr->cur_time.tv_sec = 0; + tmr->cur_time.tv_nsec = 0; + + tmr->tick.cur_tick = 0; + tmr->tick.fraction = 0; ++} + ++void snd_seq_timer_reset(struct snd_seq_timer *tmr) ++{ ++ unsigned long flags; ++ ++ spin_lock_irqsave(&tmr->lock, flags); ++ seq_timer_reset(tmr); + spin_unlock_irqrestore(&tmr->lock, flags); + } + +@@ -138,8 +145,11 @@ static void snd_seq_timer_interrupt(stru + tmr = q->timer; + if (tmr == NULL) + return; +- if (!tmr->running) ++ spin_lock_irqsave(&tmr->lock, flags); ++ if (!tmr->running) { ++ spin_unlock_irqrestore(&tmr->lock, flags); + return; ++ } + + resolution *= ticks; + if (tmr->skew != tmr->skew_base) { +@@ -148,8 +158,6 @@ static void snd_seq_timer_interrupt(stru + (((resolution & 0xffff) * tmr->skew) >> 16); + } + +- spin_lock_irqsave(&tmr->lock, flags); +- + /* update timer */ + snd_seq_inc_time_nsec(&tmr->cur_time, resolution); + +@@ -296,26 +304,30 @@ int snd_seq_timer_open(struct snd_seq_qu + t->callback = snd_seq_timer_interrupt; + t->callback_data = q; + t->flags |= SNDRV_TIMER_IFLG_AUTO; ++ spin_lock_irq(&tmr->lock); + tmr->timeri = t; ++ spin_unlock_irq(&tmr->lock); + return 0; + } + + int snd_seq_timer_close(struct snd_seq_queue *q) + { + struct snd_seq_timer *tmr; ++ struct snd_timer_instance *t; + + tmr = q->timer; + if (snd_BUG_ON(!tmr)) + return -EINVAL; +- if (tmr->timeri) { +- snd_timer_stop(tmr->timeri); +- snd_timer_close(tmr->timeri); +- tmr->timeri = NULL; +- } ++ spin_lock_irq(&tmr->lock); ++ t = tmr->timeri; ++ tmr->timeri = NULL; ++ spin_unlock_irq(&tmr->lock); ++ if (t) ++ snd_timer_close(t); + return 0; + } + +-int snd_seq_timer_stop(struct snd_seq_timer * tmr) ++static int seq_timer_stop(struct snd_seq_timer *tmr) + { + if (! tmr->timeri) + return -EINVAL; +@@ -326,6 +338,17 @@ int snd_seq_timer_stop(struct snd_seq_ti + return 0; + } + ++int snd_seq_timer_stop(struct snd_seq_timer *tmr) ++{ ++ unsigned long flags; ++ int err; ++ ++ spin_lock_irqsave(&tmr->lock, flags); ++ err = seq_timer_stop(tmr); ++ spin_unlock_irqrestore(&tmr->lock, flags); ++ return err; ++} ++ + static int initialize_timer(struct snd_seq_timer *tmr) + { + struct snd_timer *t; +@@ -358,13 +381,13 @@ static int initialize_timer(struct snd_s + return 0; + } + +-int snd_seq_timer_start(struct snd_seq_timer * tmr) ++static int seq_timer_start(struct snd_seq_timer *tmr) + { + if (! tmr->timeri) + return -EINVAL; + if (tmr->running) +- snd_seq_timer_stop(tmr); +- snd_seq_timer_reset(tmr); ++ seq_timer_stop(tmr); ++ seq_timer_reset(tmr); + if (initialize_timer(tmr) < 0) + return -EINVAL; + snd_timer_start(tmr->timeri, tmr->ticks); +@@ -373,14 +396,25 @@ int snd_seq_timer_start(struct snd_seq_t + return 0; + } + +-int snd_seq_timer_continue(struct snd_seq_timer * tmr) ++int snd_seq_timer_start(struct snd_seq_timer *tmr) ++{ ++ unsigned long flags; ++ int err; ++ ++ spin_lock_irqsave(&tmr->lock, flags); ++ err = seq_timer_start(tmr); ++ spin_unlock_irqrestore(&tmr->lock, flags); ++ return err; ++} ++ ++static int seq_timer_continue(struct snd_seq_timer *tmr) + { + if (! tmr->timeri) + return -EINVAL; + if (tmr->running) + return -EBUSY; + if (! tmr->initialized) { +- snd_seq_timer_reset(tmr); ++ seq_timer_reset(tmr); + if (initialize_timer(tmr) < 0) + return -EINVAL; + } +@@ -390,11 +424,24 @@ int snd_seq_timer_continue(struct snd_se + return 0; + } + ++int snd_seq_timer_continue(struct snd_seq_timer *tmr) ++{ ++ unsigned long flags; ++ int err; ++ ++ spin_lock_irqsave(&tmr->lock, flags); ++ err = seq_timer_continue(tmr); ++ spin_unlock_irqrestore(&tmr->lock, flags); ++ return err; ++} ++ + /* return current 'real' time. use timeofday() to get better granularity. */ + snd_seq_real_time_t snd_seq_timer_get_cur_time(struct snd_seq_timer *tmr) + { + snd_seq_real_time_t cur_time; ++ unsigned long flags; + ++ spin_lock_irqsave(&tmr->lock, flags); + cur_time = tmr->cur_time; + if (tmr->running) { + struct timeval tm; +@@ -410,7 +457,7 @@ snd_seq_real_time_t snd_seq_timer_get_cu + } + snd_seq_sanity_real_time(&cur_time); + } +- ++ spin_unlock_irqrestore(&tmr->lock, flags); + return cur_time; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/seq/seq_virmidi.c linux-libre-4.4.7-gnu/sound/core/seq/seq_virmidi.c +--- linux-libre-4.4-gnu/sound/core/seq/seq_virmidi.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/seq/seq_virmidi.c 2016-04-12 12:09:26.000000000 -0400 +@@ -155,21 +155,26 @@ static void snd_virmidi_output_trigger(s + struct snd_virmidi *vmidi = substream->runtime->private_data; + int count, res; + unsigned char buf[32], *pbuf; ++ unsigned long flags; + + if (up) { + vmidi->trigger = 1; + if (vmidi->seq_mode == SNDRV_VIRMIDI_SEQ_DISPATCH && + !(vmidi->rdev->flags & SNDRV_VIRMIDI_SUBSCRIBE)) { +- snd_rawmidi_transmit_ack(substream, substream->runtime->buffer_size - substream->runtime->avail); +- return; /* ignored */ ++ while (snd_rawmidi_transmit(substream, buf, ++ sizeof(buf)) > 0) { ++ /* ignored */ ++ } ++ return; + } + if (vmidi->event.type != SNDRV_SEQ_EVENT_NONE) { + if (snd_seq_kernel_client_dispatch(vmidi->client, &vmidi->event, in_atomic(), 0) < 0) + return; + vmidi->event.type = SNDRV_SEQ_EVENT_NONE; + } ++ spin_lock_irqsave(&substream->runtime->lock, flags); + while (1) { +- count = snd_rawmidi_transmit_peek(substream, buf, sizeof(buf)); ++ count = __snd_rawmidi_transmit_peek(substream, buf, sizeof(buf)); + if (count <= 0) + break; + pbuf = buf; +@@ -179,16 +184,18 @@ static void snd_virmidi_output_trigger(s + snd_midi_event_reset_encode(vmidi->parser); + continue; + } +- snd_rawmidi_transmit_ack(substream, res); ++ __snd_rawmidi_transmit_ack(substream, res); + pbuf += res; + count -= res; + if (vmidi->event.type != SNDRV_SEQ_EVENT_NONE) { + if (snd_seq_kernel_client_dispatch(vmidi->client, &vmidi->event, in_atomic(), 0) < 0) +- return; ++ goto out; + vmidi->event.type = SNDRV_SEQ_EVENT_NONE; + } + } + } ++ out: ++ spin_unlock_irqrestore(&substream->runtime->lock, flags); + } else { + vmidi->trigger = 0; + } +@@ -254,9 +261,13 @@ static int snd_virmidi_output_open(struc + */ + static int snd_virmidi_input_close(struct snd_rawmidi_substream *substream) + { ++ struct snd_virmidi_dev *rdev = substream->rmidi->private_data; + struct snd_virmidi *vmidi = substream->runtime->private_data; +- snd_midi_event_free(vmidi->parser); ++ ++ write_lock_irq(&rdev->filelist_lock); + list_del(&vmidi->list); ++ write_unlock_irq(&rdev->filelist_lock); ++ snd_midi_event_free(vmidi->parser); + substream->runtime->private_data = NULL; + kfree(vmidi); + return 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/timer.c linux-libre-4.4.7-gnu/sound/core/timer.c +--- linux-libre-4.4-gnu/sound/core/timer.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/timer.c 2016-04-12 12:09:26.000000000 -0400 +@@ -65,6 +65,7 @@ struct snd_timer_user { + int qtail; + int qused; + int queue_size; ++ bool disconnected; + struct snd_timer_read *queue; + struct snd_timer_tread *tqueue; + spinlock_t qlock; +@@ -73,7 +74,7 @@ struct snd_timer_user { + struct timespec tstamp; /* trigger tstamp */ + wait_queue_head_t qchange_sleep; + struct fasync_struct *fasync; +- struct mutex tread_sem; ++ struct mutex ioctl_lock; + }; + + /* list of timers */ +@@ -215,11 +216,13 @@ static void snd_timer_check_master(struc + slave->slave_id == master->slave_id) { + list_move_tail(&slave->open_list, &master->slave_list_head); + spin_lock_irq(&slave_active_lock); ++ spin_lock(&master->timer->lock); + slave->master = master; + slave->timer = master->timer; + if (slave->flags & SNDRV_TIMER_IFLG_RUNNING) + list_add_tail(&slave->active_list, + &master->slave_active_head); ++ spin_unlock(&master->timer->lock); + spin_unlock_irq(&slave_active_lock); + } + } +@@ -288,6 +291,9 @@ int snd_timer_open(struct snd_timer_inst + mutex_unlock(®ister_mutex); + return -ENOMEM; + } ++ /* take a card refcount for safe disconnection */ ++ if (timer->card) ++ get_device(&timer->card->card_dev); + timeri->slave_class = tid->dev_sclass; + timeri->slave_id = slave_id; + if (list_empty(&timer->open_list_head) && timer->hw.open) +@@ -299,8 +305,7 @@ int snd_timer_open(struct snd_timer_inst + return 0; + } + +-static int _snd_timer_stop(struct snd_timer_instance *timeri, +- int keep_flag, int event); ++static int _snd_timer_stop(struct snd_timer_instance *timeri, int event); + + /* + * close a timer instance +@@ -342,19 +347,25 @@ int snd_timer_close(struct snd_timer_ins + spin_unlock_irq(&timer->lock); + mutex_lock(®ister_mutex); + list_del(&timeri->open_list); +- if (timer && list_empty(&timer->open_list_head) && ++ if (list_empty(&timer->open_list_head) && + timer->hw.close) + timer->hw.close(timer); + /* remove slave links */ ++ spin_lock_irq(&slave_active_lock); ++ spin_lock(&timer->lock); + list_for_each_entry_safe(slave, tmp, &timeri->slave_list_head, + open_list) { +- spin_lock_irq(&slave_active_lock); +- _snd_timer_stop(slave, 1, SNDRV_TIMER_EVENT_RESOLUTION); + list_move_tail(&slave->open_list, &snd_timer_slave_list); + slave->master = NULL; + slave->timer = NULL; +- spin_unlock_irq(&slave_active_lock); ++ list_del_init(&slave->ack_list); ++ list_del_init(&slave->active_list); + } ++ spin_unlock(&timer->lock); ++ spin_unlock_irq(&slave_active_lock); ++ /* release a card refcount for safe disconnection */ ++ if (timer->card) ++ put_device(&timer->card->card_dev); + mutex_unlock(®ister_mutex); + } + out: +@@ -411,7 +422,7 @@ static void snd_timer_notify1(struct snd + spin_lock_irqsave(&timer->lock, flags); + list_for_each_entry(ts, &ti->slave_active_head, active_list) + if (ts->ccallback) +- ts->ccallback(ti, event + 100, &tstamp, resolution); ++ ts->ccallback(ts, event + 100, &tstamp, resolution); + spin_unlock_irqrestore(&timer->lock, flags); + } + +@@ -440,10 +451,17 @@ static int snd_timer_start_slave(struct + unsigned long flags; + + spin_lock_irqsave(&slave_active_lock, flags); ++ if (timeri->flags & SNDRV_TIMER_IFLG_RUNNING) { ++ spin_unlock_irqrestore(&slave_active_lock, flags); ++ return -EBUSY; ++ } + timeri->flags |= SNDRV_TIMER_IFLG_RUNNING; +- if (timeri->master) ++ if (timeri->master && timeri->timer) { ++ spin_lock(&timeri->timer->lock); + list_add_tail(&timeri->active_list, + &timeri->master->slave_active_head); ++ spin_unlock(&timeri->timer->lock); ++ } + spin_unlock_irqrestore(&slave_active_lock, flags); + return 1; /* delayed start */ + } +@@ -461,23 +479,32 @@ int snd_timer_start(struct snd_timer_ins + return -EINVAL; + if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) { + result = snd_timer_start_slave(timeri); +- snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START); ++ if (result >= 0) ++ snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START); + return result; + } + timer = timeri->timer; + if (timer == NULL) + return -EINVAL; ++ if (timer->card && timer->card->shutdown) ++ return -ENODEV; + spin_lock_irqsave(&timer->lock, flags); ++ if (timeri->flags & (SNDRV_TIMER_IFLG_RUNNING | ++ SNDRV_TIMER_IFLG_START)) { ++ result = -EBUSY; ++ goto unlock; ++ } + timeri->ticks = timeri->cticks = ticks; + timeri->pticks = 0; + result = snd_timer_start1(timer, timeri, ticks); ++ unlock: + spin_unlock_irqrestore(&timer->lock, flags); +- snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START); ++ if (result >= 0) ++ snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START); + return result; + } + +-static int _snd_timer_stop(struct snd_timer_instance * timeri, +- int keep_flag, int event) ++static int _snd_timer_stop(struct snd_timer_instance *timeri, int event) + { + struct snd_timer *timer; + unsigned long flags; +@@ -486,19 +513,36 @@ static int _snd_timer_stop(struct snd_ti + return -ENXIO; + + if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) { +- if (!keep_flag) { +- spin_lock_irqsave(&slave_active_lock, flags); +- timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING; ++ spin_lock_irqsave(&slave_active_lock, flags); ++ if (!(timeri->flags & SNDRV_TIMER_IFLG_RUNNING)) { + spin_unlock_irqrestore(&slave_active_lock, flags); ++ return -EBUSY; + } ++ if (timeri->timer) ++ spin_lock(&timeri->timer->lock); ++ timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING; ++ list_del_init(&timeri->ack_list); ++ list_del_init(&timeri->active_list); ++ if (timeri->timer) ++ spin_unlock(&timeri->timer->lock); ++ spin_unlock_irqrestore(&slave_active_lock, flags); + goto __end; + } + timer = timeri->timer; + if (!timer) + return -EINVAL; + spin_lock_irqsave(&timer->lock, flags); ++ if (!(timeri->flags & (SNDRV_TIMER_IFLG_RUNNING | ++ SNDRV_TIMER_IFLG_START))) { ++ spin_unlock_irqrestore(&timer->lock, flags); ++ return -EBUSY; ++ } + list_del_init(&timeri->ack_list); + list_del_init(&timeri->active_list); ++ if (timer->card && timer->card->shutdown) { ++ spin_unlock_irqrestore(&timer->lock, flags); ++ return 0; ++ } + if ((timeri->flags & SNDRV_TIMER_IFLG_RUNNING) && + !(--timer->running)) { + timer->hw.stop(timer); +@@ -511,9 +555,7 @@ static int _snd_timer_stop(struct snd_ti + } + } + } +- if (!keep_flag) +- timeri->flags &= +- ~(SNDRV_TIMER_IFLG_RUNNING | SNDRV_TIMER_IFLG_START); ++ timeri->flags &= ~(SNDRV_TIMER_IFLG_RUNNING | SNDRV_TIMER_IFLG_START); + spin_unlock_irqrestore(&timer->lock, flags); + __end: + if (event != SNDRV_TIMER_EVENT_RESOLUTION) +@@ -532,7 +574,7 @@ int snd_timer_stop(struct snd_timer_inst + unsigned long flags; + int err; + +- err = _snd_timer_stop(timeri, 0, SNDRV_TIMER_EVENT_STOP); ++ err = _snd_timer_stop(timeri, SNDRV_TIMER_EVENT_STOP); + if (err < 0) + return err; + timer = timeri->timer; +@@ -561,11 +603,18 @@ int snd_timer_continue(struct snd_timer_ + timer = timeri->timer; + if (! timer) + return -EINVAL; ++ if (timer->card && timer->card->shutdown) ++ return -ENODEV; + spin_lock_irqsave(&timer->lock, flags); ++ if (timeri->flags & SNDRV_TIMER_IFLG_RUNNING) { ++ result = -EBUSY; ++ goto unlock; ++ } + if (!timeri->cticks) + timeri->cticks = 1; + timeri->pticks = 0; + result = snd_timer_start1(timer, timeri, timer->sticks); ++ unlock: + spin_unlock_irqrestore(&timer->lock, flags); + snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_CONTINUE); + return result; +@@ -576,7 +625,7 @@ int snd_timer_continue(struct snd_timer_ + */ + int snd_timer_pause(struct snd_timer_instance * timeri) + { +- return _snd_timer_stop(timeri, 0, SNDRV_TIMER_EVENT_PAUSE); ++ return _snd_timer_stop(timeri, SNDRV_TIMER_EVENT_PAUSE); + } + + /* +@@ -624,6 +673,9 @@ static void snd_timer_tasklet(unsigned l + unsigned long resolution, ticks; + unsigned long flags; + ++ if (timer->card && timer->card->shutdown) ++ return; ++ + spin_lock_irqsave(&timer->lock, flags); + /* now process all callbacks */ + while (!list_empty(&timer->sack_list_head)) { +@@ -664,6 +716,9 @@ void snd_timer_interrupt(struct snd_time + if (timer == NULL) + return; + ++ if (timer->card && timer->card->shutdown) ++ return; ++ + spin_lock_irqsave(&timer->lock, flags); + + /* remember the current resolution */ +@@ -693,8 +748,8 @@ void snd_timer_interrupt(struct snd_time + ti->cticks = ti->ticks; + } else { + ti->flags &= ~SNDRV_TIMER_IFLG_RUNNING; +- if (--timer->running) +- list_del(&ti->active_list); ++ --timer->running; ++ list_del_init(&ti->active_list); + } + if ((timer->hw.flags & SNDRV_TIMER_HW_TASKLET) || + (ti->flags & SNDRV_TIMER_IFLG_FAST)) +@@ -874,11 +929,28 @@ static int snd_timer_dev_register(struct + return 0; + } + ++/* just for reference in snd_timer_dev_disconnect() below */ ++static void snd_timer_user_ccallback(struct snd_timer_instance *timeri, ++ int event, struct timespec *tstamp, ++ unsigned long resolution); ++ + static int snd_timer_dev_disconnect(struct snd_device *device) + { + struct snd_timer *timer = device->device_data; ++ struct snd_timer_instance *ti; ++ + mutex_lock(®ister_mutex); + list_del_init(&timer->device_list); ++ /* wake up pending sleepers */ ++ list_for_each_entry(ti, &timer->open_list_head, open_list) { ++ /* FIXME: better to have a ti.disconnect() op */ ++ if (ti->ccallback == snd_timer_user_ccallback) { ++ struct snd_timer_user *tu = ti->callback_data; ++ ++ tu->disconnected = true; ++ wake_up(&tu->qchange_sleep); ++ } ++ } + mutex_unlock(®ister_mutex); + return 0; + } +@@ -889,6 +961,8 @@ void snd_timer_notify(struct snd_timer * + unsigned long resolution = 0; + struct snd_timer_instance *ti, *ts; + ++ if (timer->card && timer->card->shutdown) ++ return; + if (! (timer->hw.flags & SNDRV_TIMER_HW_SLAVE)) + return; + if (snd_BUG_ON(event < SNDRV_TIMER_EVENT_MSTART || +@@ -1047,6 +1121,8 @@ static void snd_timer_proc_read(struct s + + mutex_lock(®ister_mutex); + list_for_each_entry(timer, &snd_timer_list, device_list) { ++ if (timer->card && timer->card->shutdown) ++ continue; + switch (timer->tmr_class) { + case SNDRV_TIMER_CLASS_GLOBAL: + snd_iprintf(buffer, "G%i: ", timer->tmr_device); +@@ -1253,7 +1329,7 @@ static int snd_timer_user_open(struct in + return -ENOMEM; + spin_lock_init(&tu->qlock); + init_waitqueue_head(&tu->qchange_sleep); +- mutex_init(&tu->tread_sem); ++ mutex_init(&tu->ioctl_lock); + tu->ticks = 1; + tu->queue_size = 128; + tu->queue = kmalloc(tu->queue_size * sizeof(struct snd_timer_read), +@@ -1273,8 +1349,10 @@ static int snd_timer_user_release(struct + if (file->private_data) { + tu = file->private_data; + file->private_data = NULL; ++ mutex_lock(&tu->ioctl_lock); + if (tu->timeri) + snd_timer_close(tu->timeri); ++ mutex_unlock(&tu->ioctl_lock); + kfree(tu->queue); + kfree(tu->tqueue); + kfree(tu); +@@ -1512,7 +1590,6 @@ static int snd_timer_user_tselect(struct + int err = 0; + + tu = file->private_data; +- mutex_lock(&tu->tread_sem); + if (tu->timeri) { + snd_timer_close(tu->timeri); + tu->timeri = NULL; +@@ -1556,7 +1633,6 @@ static int snd_timer_user_tselect(struct + } + + __err: +- mutex_unlock(&tu->tread_sem); + return err; + } + +@@ -1769,7 +1845,7 @@ enum { + SNDRV_TIMER_IOCTL_PAUSE_OLD = _IO('T', 0x23), + }; + +-static long snd_timer_user_ioctl(struct file *file, unsigned int cmd, ++static long __snd_timer_user_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) + { + struct snd_timer_user *tu; +@@ -1786,17 +1862,11 @@ static long snd_timer_user_ioctl(struct + { + int xarg; + +- mutex_lock(&tu->tread_sem); +- if (tu->timeri) { /* too late */ +- mutex_unlock(&tu->tread_sem); ++ if (tu->timeri) /* too late */ + return -EBUSY; +- } +- if (get_user(xarg, p)) { +- mutex_unlock(&tu->tread_sem); ++ if (get_user(xarg, p)) + return -EFAULT; +- } + tu->tread = xarg ? 1 : 0; +- mutex_unlock(&tu->tread_sem); + return 0; + } + case SNDRV_TIMER_IOCTL_GINFO: +@@ -1829,6 +1899,18 @@ static long snd_timer_user_ioctl(struct + return -ENOTTY; + } + ++static long snd_timer_user_ioctl(struct file *file, unsigned int cmd, ++ unsigned long arg) ++{ ++ struct snd_timer_user *tu = file->private_data; ++ long ret; ++ ++ mutex_lock(&tu->ioctl_lock); ++ ret = __snd_timer_user_ioctl(file, cmd, arg); ++ mutex_unlock(&tu->ioctl_lock); ++ return ret; ++} ++ + static int snd_timer_user_fasync(int fd, struct file * file, int on) + { + struct snd_timer_user *tu; +@@ -1842,6 +1924,7 @@ static ssize_t snd_timer_user_read(struc + { + struct snd_timer_user *tu; + long result = 0, unit; ++ int qhead; + int err = 0; + + tu = file->private_data; +@@ -1853,7 +1936,7 @@ static ssize_t snd_timer_user_read(struc + + if ((file->f_flags & O_NONBLOCK) != 0 || result > 0) { + err = -EAGAIN; +- break; ++ goto _error; + } + + set_current_state(TASK_INTERRUPTIBLE); +@@ -1866,40 +1949,39 @@ static ssize_t snd_timer_user_read(struc + + remove_wait_queue(&tu->qchange_sleep, &wait); + ++ if (tu->disconnected) { ++ err = -ENODEV; ++ goto _error; ++ } + if (signal_pending(current)) { + err = -ERESTARTSYS; +- break; ++ goto _error; + } + } + ++ qhead = tu->qhead++; ++ tu->qhead %= tu->queue_size; + spin_unlock_irq(&tu->qlock); +- if (err < 0) +- goto _error; + + if (tu->tread) { +- if (copy_to_user(buffer, &tu->tqueue[tu->qhead++], +- sizeof(struct snd_timer_tread))) { ++ if (copy_to_user(buffer, &tu->tqueue[qhead], ++ sizeof(struct snd_timer_tread))) + err = -EFAULT; +- goto _error; +- } + } else { +- if (copy_to_user(buffer, &tu->queue[tu->qhead++], +- sizeof(struct snd_timer_read))) { ++ if (copy_to_user(buffer, &tu->queue[qhead], ++ sizeof(struct snd_timer_read))) + err = -EFAULT; +- goto _error; +- } + } + +- tu->qhead %= tu->queue_size; +- +- result += unit; +- buffer += unit; +- + spin_lock_irq(&tu->qlock); + tu->qused--; ++ if (err < 0) ++ goto _error; ++ result += unit; ++ buffer += unit; + } +- spin_unlock_irq(&tu->qlock); + _error: ++ spin_unlock_irq(&tu->qlock); + return result > 0 ? result : err; + } + +@@ -1915,6 +1997,8 @@ static unsigned int snd_timer_user_poll( + mask = 0; + if (tu->qused) + mask |= POLLIN | POLLRDNORM; ++ if (tu->disconnected) ++ mask |= POLLERR; + + return mask; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/core/timer_compat.c linux-libre-4.4.7-gnu/sound/core/timer_compat.c +--- linux-libre-4.4-gnu/sound/core/timer_compat.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/core/timer_compat.c 2016-04-12 12:09:26.000000000 -0400 +@@ -70,13 +70,14 @@ static int snd_timer_user_status_compat( + struct snd_timer_status32 __user *_status) + { + struct snd_timer_user *tu; +- struct snd_timer_status status; ++ struct snd_timer_status32 status; + + tu = file->private_data; + if (snd_BUG_ON(!tu->timeri)) + return -ENXIO; + memset(&status, 0, sizeof(status)); +- status.tstamp = tu->tstamp; ++ status.tstamp.tv_sec = tu->tstamp.tv_sec; ++ status.tstamp.tv_nsec = tu->tstamp.tv_nsec; + status.resolution = snd_timer_resolution(tu->timeri); + status.lost = tu->timeri->lost; + status.overrun = tu->overrun; +@@ -88,12 +89,21 @@ static int snd_timer_user_status_compat( + return 0; + } + ++#ifdef CONFIG_X86_X32 ++/* X32 ABI has the same struct as x86-64 */ ++#define snd_timer_user_status_x32(file, s) \ ++ snd_timer_user_status(file, s) ++#endif /* CONFIG_X86_X32 */ ++ + /* + */ + + enum { + SNDRV_TIMER_IOCTL_INFO32 = _IOR('T', 0x11, struct snd_timer_info32), + SNDRV_TIMER_IOCTL_STATUS32 = _IOW('T', 0x14, struct snd_timer_status32), ++#ifdef CONFIG_X86_X32 ++ SNDRV_TIMER_IOCTL_STATUS_X32 = _IOW('T', 0x14, struct snd_timer_status), ++#endif /* CONFIG_X86_X32 */ + }; + + static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) +@@ -122,6 +132,10 @@ static long snd_timer_user_ioctl_compat( + return snd_timer_user_info_compat(file, argp); + case SNDRV_TIMER_IOCTL_STATUS32: + return snd_timer_user_status_compat(file, argp); ++#ifdef CONFIG_X86_X32 ++ case SNDRV_TIMER_IOCTL_STATUS_X32: ++ return snd_timer_user_status_x32(file, argp); ++#endif /* CONFIG_X86_X32 */ + } + return -ENOIOCTLCMD; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/drivers/dummy.c linux-libre-4.4.7-gnu/sound/drivers/dummy.c +--- linux-libre-4.4-gnu/sound/drivers/dummy.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/drivers/dummy.c 2016-04-12 12:09:26.000000000 -0400 +@@ -109,6 +109,9 @@ struct dummy_timer_ops { + snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *); + }; + ++#define get_dummy_ops(substream) \ ++ (*(const struct dummy_timer_ops **)(substream)->runtime->private_data) ++ + struct dummy_model { + const char *name; + int (*playback_constraints)(struct snd_pcm_runtime *runtime); +@@ -137,7 +140,6 @@ struct snd_dummy { + int iobox; + struct snd_kcontrol *cd_volume_ctl; + struct snd_kcontrol *cd_switch_ctl; +- const struct dummy_timer_ops *timer_ops; + }; + + /* +@@ -231,6 +233,8 @@ static struct dummy_model *dummy_models[ + */ + + struct dummy_systimer_pcm { ++ /* ops must be the first item */ ++ const struct dummy_timer_ops *timer_ops; + spinlock_t lock; + struct timer_list timer; + unsigned long base_time; +@@ -366,6 +370,8 @@ static struct dummy_timer_ops dummy_syst + */ + + struct dummy_hrtimer_pcm { ++ /* ops must be the first item */ ++ const struct dummy_timer_ops *timer_ops; + ktime_t base_time; + ktime_t period_time; + atomic_t running; +@@ -492,31 +498,25 @@ static struct dummy_timer_ops dummy_hrti + + static int dummy_pcm_trigger(struct snd_pcm_substream *substream, int cmd) + { +- struct snd_dummy *dummy = snd_pcm_substream_chip(substream); +- + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: +- return dummy->timer_ops->start(substream); ++ return get_dummy_ops(substream)->start(substream); + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: +- return dummy->timer_ops->stop(substream); ++ return get_dummy_ops(substream)->stop(substream); + } + return -EINVAL; + } + + static int dummy_pcm_prepare(struct snd_pcm_substream *substream) + { +- struct snd_dummy *dummy = snd_pcm_substream_chip(substream); +- +- return dummy->timer_ops->prepare(substream); ++ return get_dummy_ops(substream)->prepare(substream); + } + + static snd_pcm_uframes_t dummy_pcm_pointer(struct snd_pcm_substream *substream) + { +- struct snd_dummy *dummy = snd_pcm_substream_chip(substream); +- +- return dummy->timer_ops->pointer(substream); ++ return get_dummy_ops(substream)->pointer(substream); + } + + static struct snd_pcm_hardware dummy_pcm_hardware = { +@@ -562,17 +562,19 @@ static int dummy_pcm_open(struct snd_pcm + struct snd_dummy *dummy = snd_pcm_substream_chip(substream); + struct dummy_model *model = dummy->model; + struct snd_pcm_runtime *runtime = substream->runtime; ++ const struct dummy_timer_ops *ops; + int err; + +- dummy->timer_ops = &dummy_systimer_ops; ++ ops = &dummy_systimer_ops; + #ifdef CONFIG_HIGH_RES_TIMERS + if (hrtimer) +- dummy->timer_ops = &dummy_hrtimer_ops; ++ ops = &dummy_hrtimer_ops; + #endif + +- err = dummy->timer_ops->create(substream); ++ err = ops->create(substream); + if (err < 0) + return err; ++ get_dummy_ops(substream) = ops; + + runtime->hw = dummy->pcm_hw; + if (substream->pcm->device & 1) { +@@ -594,7 +596,7 @@ static int dummy_pcm_open(struct snd_pcm + err = model->capture_constraints(substream->runtime); + } + if (err < 0) { +- dummy->timer_ops->free(substream); ++ get_dummy_ops(substream)->free(substream); + return err; + } + return 0; +@@ -602,8 +604,7 @@ static int dummy_pcm_open(struct snd_pcm + + static int dummy_pcm_close(struct snd_pcm_substream *substream) + { +- struct snd_dummy *dummy = snd_pcm_substream_chip(substream); +- dummy->timer_ops->free(substream); ++ get_dummy_ops(substream)->free(substream); + return 0; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/firewire/bebob/bebob_stream.c linux-libre-4.4.7-gnu/sound/firewire/bebob/bebob_stream.c +--- linux-libre-4.4-gnu/sound/firewire/bebob/bebob_stream.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/firewire/bebob/bebob_stream.c 2016-04-12 12:09:26.000000000 -0400 +@@ -47,14 +47,16 @@ static const unsigned int bridgeco_freq_ + [6] = 0x07, + }; + +-static unsigned int +-get_formation_index(unsigned int rate) ++static int ++get_formation_index(unsigned int rate, unsigned int *index) + { + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(snd_bebob_rate_table); i++) { +- if (snd_bebob_rate_table[i] == rate) +- return i; ++ if (snd_bebob_rate_table[i] == rate) { ++ *index = i; ++ return 0; ++ } + } + return -EINVAL; + } +@@ -425,7 +427,9 @@ make_both_connections(struct snd_bebob * + goto end; + + /* confirm params for both streams */ +- index = get_formation_index(rate); ++ err = get_formation_index(rate, &index); ++ if (err < 0) ++ goto end; + pcm_channels = bebob->tx_stream_formations[index].pcm; + midi_channels = bebob->tx_stream_formations[index].midi; + err = amdtp_am824_set_parameters(&bebob->tx_stream, rate, +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/isa/Kconfig linux-libre-4.4.7-gnu/sound/isa/Kconfig +--- linux-libre-4.4-gnu/sound/isa/Kconfig 2016-01-10 21:18:01.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/isa/Kconfig 2016-04-12 21:33:40.000000000 -0400 +@@ -3,6 +3,7 @@ + config SND_WSS_LIB + tristate + select SND_PCM ++ select SND_TIMER + + config SND_SB_COMMON + tristate +@@ -42,6 +43,7 @@ config SND_AD1816A + select SND_OPL3_LIB + select SND_MPU401_UART + select SND_PCM ++ select SND_TIMER + help + Say Y here to include support for Analog Devices SoundPort + AD1816A or compatible sound chips. +@@ -209,6 +211,7 @@ config SND_GUSCLASSIC + tristate "Gravis UltraSound Classic" + select SND_RAWMIDI + select SND_PCM ++ select SND_TIMER + help + Say Y here to include support for Gravis UltraSound Classic + soundcards. +@@ -221,6 +224,7 @@ config SND_GUSEXTREME + select SND_OPL3_LIB + select SND_MPU401_UART + select SND_PCM ++ select SND_TIMER + help + Say Y here to include support for Gravis UltraSound Extreme + soundcards. +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/hda/hda_bind.c linux-libre-4.4.7-gnu/sound/pci/hda/hda_bind.c +--- linux-libre-4.4-gnu/sound/pci/hda/hda_bind.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/hda/hda_bind.c 2016-04-12 12:09:26.000000000 -0400 +@@ -174,14 +174,40 @@ static inline bool codec_probed(struct h + return device_attach(hda_codec_dev(codec)) > 0 && codec->preset; + } + +-/* try to auto-load and bind the codec module */ +-static void codec_bind_module(struct hda_codec *codec) ++/* try to auto-load codec module */ ++static void request_codec_module(struct hda_codec *codec) + { + #ifdef MODULE + char modalias[32]; ++ const char *mod = NULL; + +- snd_hdac_codec_modalias(&codec->core, modalias, sizeof(modalias)); +- request_module(modalias); ++ switch (codec->probe_id) { ++ case HDA_CODEC_ID_GENERIC_HDMI: ++#if IS_MODULE(CONFIG_SND_HDA_CODEC_HDMI) ++ mod = "snd-hda-codec-hdmi"; ++#endif ++ break; ++ case HDA_CODEC_ID_GENERIC: ++#if IS_MODULE(CONFIG_SND_HDA_GENERIC) ++ mod = "snd-hda-codec-generic"; ++#endif ++ break; ++ default: ++ snd_hdac_codec_modalias(&codec->core, modalias, sizeof(modalias)); ++ mod = modalias; ++ break; ++ } ++ ++ if (mod) ++ request_module(mod); ++#endif /* MODULE */ ++} ++ ++/* try to auto-load and bind the codec module */ ++static void codec_bind_module(struct hda_codec *codec) ++{ ++#ifdef MODULE ++ request_codec_module(codec); + if (codec_probed(codec)) + return; + #endif +@@ -218,17 +244,13 @@ static int codec_bind_generic(struct hda + + if (is_likely_hdmi_codec(codec)) { + codec->probe_id = HDA_CODEC_ID_GENERIC_HDMI; +-#if IS_MODULE(CONFIG_SND_HDA_CODEC_HDMI) +- request_module("snd-hda-codec-hdmi"); +-#endif ++ request_codec_module(codec); + if (codec_probed(codec)) + return 0; + } + + codec->probe_id = HDA_CODEC_ID_GENERIC; +-#if IS_MODULE(CONFIG_SND_HDA_GENERIC) +- request_module("snd-hda-codec-generic"); +-#endif ++ request_codec_module(codec); + if (codec_probed(codec)) + return 0; + return -ENODEV; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/hda/hda_generic.c linux-libre-4.4.7-gnu/sound/pci/hda/hda_generic.c +--- linux-libre-4.4-gnu/sound/pci/hda/hda_generic.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/hda/hda_generic.c 2016-04-12 12:09:26.000000000 -0400 +@@ -771,9 +771,6 @@ static void activate_amp(struct hda_code + unsigned int caps; + unsigned int mask, val; + +- if (!enable && is_active_nid(codec, nid, dir, idx_to_check)) +- return; +- + caps = query_amp_caps(codec, nid, dir); + val = get_amp_val_to_activate(codec, nid, dir, caps, enable); + mask = get_amp_mask_to_modify(codec, nid, dir, idx_to_check, caps); +@@ -784,12 +781,22 @@ static void activate_amp(struct hda_code + update_amp(codec, nid, dir, idx, mask, val); + } + ++static void check_and_activate_amp(struct hda_codec *codec, hda_nid_t nid, ++ int dir, int idx, int idx_to_check, ++ bool enable) ++{ ++ /* check whether the given amp is still used by others */ ++ if (!enable && is_active_nid(codec, nid, dir, idx_to_check)) ++ return; ++ activate_amp(codec, nid, dir, idx, idx_to_check, enable); ++} ++ + static void activate_amp_out(struct hda_codec *codec, struct nid_path *path, + int i, bool enable) + { + hda_nid_t nid = path->path[i]; + init_amp(codec, nid, HDA_OUTPUT, 0); +- activate_amp(codec, nid, HDA_OUTPUT, 0, 0, enable); ++ check_and_activate_amp(codec, nid, HDA_OUTPUT, 0, 0, enable); + } + + static void activate_amp_in(struct hda_codec *codec, struct nid_path *path, +@@ -817,9 +824,16 @@ static void activate_amp_in(struct hda_c + * when aa-mixer is available, we need to enable the path as well + */ + for (n = 0; n < nums; n++) { +- if (n != idx && (!add_aamix || conn[n] != spec->mixer_merge_nid)) +- continue; +- activate_amp(codec, nid, HDA_INPUT, n, idx, enable); ++ if (n != idx) { ++ if (conn[n] != spec->mixer_merge_nid) ++ continue; ++ /* when aamix is disabled, force to off */ ++ if (!add_aamix) { ++ activate_amp(codec, nid, HDA_INPUT, n, n, false); ++ continue; ++ } ++ } ++ check_and_activate_amp(codec, nid, HDA_INPUT, n, idx, enable); + } + } + +@@ -1580,6 +1594,12 @@ static bool map_singles(struct hda_codec + return found; + } + ++static inline bool has_aamix_out_paths(struct hda_gen_spec *spec) ++{ ++ return spec->aamix_out_paths[0] || spec->aamix_out_paths[1] || ++ spec->aamix_out_paths[2]; ++} ++ + /* create a new path including aamix if available, and return its index */ + static int check_aamix_out_path(struct hda_codec *codec, int path_idx) + { +@@ -2422,25 +2442,51 @@ static void update_aamix_paths(struct hd + } + } + ++/* re-initialize the output paths; only called from loopback_mixing_put() */ ++static void update_output_paths(struct hda_codec *codec, int num_outs, ++ const int *paths) ++{ ++ struct hda_gen_spec *spec = codec->spec; ++ struct nid_path *path; ++ int i; ++ ++ for (i = 0; i < num_outs; i++) { ++ path = snd_hda_get_path_from_idx(codec, paths[i]); ++ if (path) ++ snd_hda_activate_path(codec, path, path->active, ++ spec->aamix_mode); ++ } ++} ++ + static int loopback_mixing_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) + { + struct hda_codec *codec = snd_kcontrol_chip(kcontrol); + struct hda_gen_spec *spec = codec->spec; ++ const struct auto_pin_cfg *cfg = &spec->autocfg; + unsigned int val = ucontrol->value.enumerated.item[0]; + + if (val == spec->aamix_mode) + return 0; + spec->aamix_mode = val; +- update_aamix_paths(codec, val, spec->out_paths[0], +- spec->aamix_out_paths[0], +- spec->autocfg.line_out_type); +- update_aamix_paths(codec, val, spec->hp_paths[0], +- spec->aamix_out_paths[1], +- AUTO_PIN_HP_OUT); +- update_aamix_paths(codec, val, spec->speaker_paths[0], +- spec->aamix_out_paths[2], +- AUTO_PIN_SPEAKER_OUT); ++ if (has_aamix_out_paths(spec)) { ++ update_aamix_paths(codec, val, spec->out_paths[0], ++ spec->aamix_out_paths[0], ++ cfg->line_out_type); ++ update_aamix_paths(codec, val, spec->hp_paths[0], ++ spec->aamix_out_paths[1], ++ AUTO_PIN_HP_OUT); ++ update_aamix_paths(codec, val, spec->speaker_paths[0], ++ spec->aamix_out_paths[2], ++ AUTO_PIN_SPEAKER_OUT); ++ } else { ++ update_output_paths(codec, cfg->line_outs, spec->out_paths); ++ if (cfg->line_out_type != AUTO_PIN_HP_OUT) ++ update_output_paths(codec, cfg->hp_outs, spec->hp_paths); ++ if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT) ++ update_output_paths(codec, cfg->speaker_outs, ++ spec->speaker_paths); ++ } + return 1; + } + +@@ -2458,12 +2504,13 @@ static int create_loopback_mixing_ctl(st + + if (!spec->mixer_nid) + return 0; +- if (!(spec->aamix_out_paths[0] || spec->aamix_out_paths[1] || +- spec->aamix_out_paths[2])) +- return 0; + if (!snd_hda_gen_add_kctl(spec, NULL, &loopback_mixing_enum)) + return -ENOMEM; + spec->have_aamix_ctl = 1; ++ /* if no explicit aamix path is present (e.g. for Realtek codecs), ++ * enable aamix as default -- just for compatibility ++ */ ++ spec->aamix_mode = !has_aamix_out_paths(spec); + return 0; + } + +@@ -3998,9 +4045,9 @@ static void pin_power_callback(struct hd + struct hda_jack_callback *jack, + bool on) + { +- if (jack && jack->tbl->nid) ++ if (jack && jack->nid) + sync_power_state_change(codec, +- set_pin_power_jack(codec, jack->tbl->nid, on)); ++ set_pin_power_jack(codec, jack->nid, on)); + } + + /* callback only doing power up -- called at first */ +@@ -5664,6 +5711,8 @@ static void init_aamix_paths(struct hda_ + + if (!spec->have_aamix_ctl) + return; ++ if (!has_aamix_out_paths(spec)) ++ return; + update_aamix_paths(codec, spec->aamix_mode, spec->out_paths[0], + spec->aamix_out_paths[0], + spec->autocfg.line_out_type); +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/hda/hda_intel.c linux-libre-4.4.7-gnu/sound/pci/hda/hda_intel.c +--- linux-libre-4.4-gnu/sound/pci/hda/hda_intel.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/hda/hda_intel.c 2016-04-12 12:09:26.000000000 -0400 +@@ -90,6 +90,8 @@ enum { + #define NVIDIA_HDA_ENABLE_COHBIT 0x01 + + /* Defines for Intel SCH HDA snoop control */ ++#define INTEL_HDA_CGCTL 0x48 ++#define INTEL_HDA_CGCTL_MISCBDCGE (0x1 << 6) + #define INTEL_SCH_HDA_DEVC 0x78 + #define INTEL_SCH_HDA_DEVC_NOSNOOP (0x1<<11) + +@@ -355,7 +357,10 @@ enum { + ((pci)->device == 0x0d0c) || \ + ((pci)->device == 0x160c)) + +-#define IS_BROXTON(pci) ((pci)->device == 0x5a98) ++#define IS_SKL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa170) ++#define IS_SKL_LP(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x9d70) ++#define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98) ++#define IS_SKL_PLUS(pci) (IS_SKL(pci) || IS_SKL_LP(pci) || IS_BXT(pci)) + + static char *driver_short_names[] = { + [AZX_DRIVER_ICH] = "HDA Intel", +@@ -528,15 +533,26 @@ static void hda_intel_init_chip(struct a + { + struct hdac_bus *bus = azx_bus(chip); + struct pci_dev *pci = chip->pci; ++ u32 val; + + if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) + snd_hdac_set_codec_wakeup(bus, true); ++ if (IS_SKL_PLUS(pci)) { ++ pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val); ++ val = val & ~INTEL_HDA_CGCTL_MISCBDCGE; ++ pci_write_config_dword(pci, INTEL_HDA_CGCTL, val); ++ } + azx_init_chip(chip, full_reset); ++ if (IS_SKL_PLUS(pci)) { ++ pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val); ++ val = val | INTEL_HDA_CGCTL_MISCBDCGE; ++ pci_write_config_dword(pci, INTEL_HDA_CGCTL, val); ++ } + if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) + snd_hdac_set_codec_wakeup(bus, false); + + /* reduce dma latency to avoid noise */ +- if (IS_BROXTON(pci)) ++ if (IS_BXT(pci)) + bxt_reduce_dma_latency(chip); + } + +@@ -958,11 +974,6 @@ static int azx_resume(struct device *dev + /* put codec down to D3 at hibernation for Intel SKL+; + * otherwise BIOS may still access the codec and screw up the driver + */ +-#define IS_SKL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa170) +-#define IS_SKL_LP(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x9d70) +-#define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98) +-#define IS_SKL_PLUS(pci) (IS_SKL(pci) || IS_SKL_LP(pci) || IS_BXT(pci)) +- + static int azx_freeze_noirq(struct device *dev) + { + struct pci_dev *pci = to_pci_dev(dev); +@@ -2126,9 +2137,17 @@ i915_power_fail: + static void azx_remove(struct pci_dev *pci) + { + struct snd_card *card = pci_get_drvdata(pci); ++ struct azx *chip; ++ struct hda_intel *hda; ++ ++ if (card) { ++ /* cancel the pending probing work */ ++ chip = card->private_data; ++ hda = container_of(chip, struct hda_intel, chip); ++ cancel_work_sync(&hda->probe_work); + +- if (card) + snd_card_free(card); ++ } + } + + static void azx_shutdown(struct pci_dev *pci) +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/hda/hda_jack.c linux-libre-4.4.7-gnu/sound/pci/hda/hda_jack.c +--- linux-libre-4.4-gnu/sound/pci/hda/hda_jack.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/hda/hda_jack.c 2016-04-12 12:09:26.000000000 -0400 +@@ -259,7 +259,7 @@ snd_hda_jack_detect_enable_callback(stru + if (!callback) + return ERR_PTR(-ENOMEM); + callback->func = func; +- callback->tbl = jack; ++ callback->nid = jack->nid; + callback->next = jack->callback; + jack->callback = callback; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/hda/hda_jack.h linux-libre-4.4.7-gnu/sound/pci/hda/hda_jack.h +--- linux-libre-4.4-gnu/sound/pci/hda/hda_jack.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/hda/hda_jack.h 2016-04-12 12:09:26.000000000 -0400 +@@ -21,7 +21,7 @@ struct hda_jack_callback; + typedef void (*hda_jack_callback_fn) (struct hda_codec *, struct hda_jack_callback *); + + struct hda_jack_callback { +- struct hda_jack_tbl *tbl; ++ hda_nid_t nid; + hda_jack_callback_fn func; + unsigned int private_data; /* arbitrary data */ + struct hda_jack_callback *next; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/hda/patch_ca0132.c linux-libre-4.4.7-gnu/sound/pci/hda/patch_ca0132.c +--- linux-libre-4.4-gnu/sound/pci/hda/patch_ca0132.c 2016-01-10 21:17:37.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/hda/patch_ca0132.c 2016-04-12 21:33:17.000000000 -0400 +@@ -4427,13 +4427,16 @@ static void ca0132_process_dsp_response( + static void hp_callback(struct hda_codec *codec, struct hda_jack_callback *cb) + { + struct ca0132_spec *spec = codec->spec; ++ struct hda_jack_tbl *tbl; + + /* Delay enabling the HP amp, to let the mic-detection + * state machine run. + */ + cancel_delayed_work_sync(&spec->unsol_hp_work); + schedule_delayed_work(&spec->unsol_hp_work, msecs_to_jiffies(500)); +- cb->tbl->block_report = 1; ++ tbl = snd_hda_jack_tbl_get(codec, cb->nid); ++ if (tbl) ++ tbl->block_report = 1; + } + + static void amic_callback(struct hda_codec *codec, struct hda_jack_callback *cb) +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/hda/patch_cirrus.c linux-libre-4.4.7-gnu/sound/pci/hda/patch_cirrus.c +--- linux-libre-4.4-gnu/sound/pci/hda/patch_cirrus.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/hda/patch_cirrus.c 2016-04-12 12:09:26.000000000 -0400 +@@ -174,8 +174,12 @@ static void cs_automute(struct hda_codec + snd_hda_gen_update_outputs(codec); + + if (spec->gpio_eapd_hp || spec->gpio_eapd_speaker) { +- spec->gpio_data = spec->gen.hp_jack_present ? +- spec->gpio_eapd_hp : spec->gpio_eapd_speaker; ++ if (spec->gen.automute_speaker) ++ spec->gpio_data = spec->gen.hp_jack_present ? ++ spec->gpio_eapd_hp : spec->gpio_eapd_speaker; ++ else ++ spec->gpio_data = ++ spec->gpio_eapd_hp | spec->gpio_eapd_speaker; + snd_hda_codec_write(codec, 0x01, 0, + AC_VERB_SET_GPIO_DATA, spec->gpio_data); + } +@@ -614,6 +618,7 @@ enum { + CS4208_MAC_AUTO, + CS4208_MBA6, + CS4208_MBP11, ++ CS4208_MACMINI, + CS4208_GPIO0, + }; + +@@ -621,6 +626,7 @@ static const struct hda_model_fixup cs42 + { .id = CS4208_GPIO0, .name = "gpio0" }, + { .id = CS4208_MBA6, .name = "mba6" }, + { .id = CS4208_MBP11, .name = "mbp11" }, ++ { .id = CS4208_MACMINI, .name = "macmini" }, + {} + }; + +@@ -632,6 +638,7 @@ static const struct snd_pci_quirk cs4208 + /* codec SSID matching */ + static const struct snd_pci_quirk cs4208_mac_fixup_tbl[] = { + SND_PCI_QUIRK(0x106b, 0x5e00, "MacBookPro 11,2", CS4208_MBP11), ++ SND_PCI_QUIRK(0x106b, 0x6c00, "MacMini 7,1", CS4208_MACMINI), + SND_PCI_QUIRK(0x106b, 0x7100, "MacBookAir 6,1", CS4208_MBA6), + SND_PCI_QUIRK(0x106b, 0x7200, "MacBookAir 6,2", CS4208_MBA6), + SND_PCI_QUIRK(0x106b, 0x7b00, "MacBookPro 12,1", CS4208_MBP11), +@@ -666,6 +673,24 @@ static void cs4208_fixup_mac(struct hda_ + snd_hda_apply_fixup(codec, action); + } + ++/* MacMini 7,1 has the inverted jack detection */ ++static void cs4208_fixup_macmini(struct hda_codec *codec, ++ const struct hda_fixup *fix, int action) ++{ ++ static const struct hda_pintbl pincfgs[] = { ++ { 0x18, 0x00ab9150 }, /* mic (audio-in) jack: disable detect */ ++ { 0x21, 0x004be140 }, /* SPDIF: disable detect */ ++ { } ++ }; ++ ++ if (action == HDA_FIXUP_ACT_PRE_PROBE) { ++ /* HP pin (0x10) has an inverted detection */ ++ codec->inv_jack_detect = 1; ++ /* disable the bogus Mic and SPDIF jack detections */ ++ snd_hda_apply_pincfgs(codec, pincfgs); ++ } ++} ++ + static int cs4208_spdif_sw_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) + { +@@ -709,6 +734,12 @@ static const struct hda_fixup cs4208_fix + .chained = true, + .chain_id = CS4208_GPIO0, + }, ++ [CS4208_MACMINI] = { ++ .type = HDA_FIXUP_FUNC, ++ .v.func = cs4208_fixup_macmini, ++ .chained = true, ++ .chain_id = CS4208_GPIO0, ++ }, + [CS4208_GPIO0] = { + .type = HDA_FIXUP_FUNC, + .v.func = cs4208_fixup_gpio0, +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/hda/patch_conexant.c linux-libre-4.4.7-gnu/sound/pci/hda/patch_conexant.c +--- linux-libre-4.4-gnu/sound/pci/hda/patch_conexant.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/hda/patch_conexant.c 2016-04-12 12:09:26.000000000 -0400 +@@ -204,8 +204,13 @@ static void cx_auto_reboot_notify(struct + { + struct conexant_spec *spec = codec->spec; + +- if (codec->core.vendor_id != 0x14f150f2) ++ switch (codec->core.vendor_id) { ++ case 0x14f150f2: /* CX20722 */ ++ case 0x14f150f4: /* CX20724 */ ++ break; ++ default: + return; ++ } + + /* Turn the CX20722 codec into D3 to avoid spurious noises + from the internal speaker during (and after) reboot */ +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/hda/patch_hdmi.c linux-libre-4.4.7-gnu/sound/pci/hda/patch_hdmi.c +--- linux-libre-4.4-gnu/sound/pci/hda/patch_hdmi.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/hda/patch_hdmi.c 2016-04-12 12:09:26.000000000 -0400 +@@ -438,7 +438,8 @@ static int hdmi_eld_ctl_get(struct snd_k + eld = &per_pin->sink_eld; + + mutex_lock(&per_pin->lock); +- if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data)) { ++ if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data) || ++ eld->eld_size > ELD_MAX_SIZE) { + mutex_unlock(&per_pin->lock); + snd_BUG(); + return -EINVAL; +@@ -1183,7 +1184,7 @@ static void check_presence_and_report(st + static void jack_callback(struct hda_codec *codec, + struct hda_jack_callback *jack) + { +- check_presence_and_report(codec, jack->tbl->nid); ++ check_presence_and_report(codec, jack->nid); + } + + static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res) +@@ -2352,6 +2353,10 @@ static void intel_pin_eld_notify(void *a + struct hda_codec *codec = audio_ptr; + int pin_nid = port + 0x04; + ++ /* we assume only from port-B to port-D */ ++ if (port < 1 || port > 3) ++ return; ++ + /* skip notification during system suspend (but not in runtime PM); + * the state will be updated at resume + */ +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/hda/patch_realtek.c linux-libre-4.4.7-gnu/sound/pci/hda/patch_realtek.c +--- linux-libre-4.4-gnu/sound/pci/hda/patch_realtek.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/hda/patch_realtek.c 2016-04-12 12:09:26.000000000 -0400 +@@ -282,7 +282,7 @@ static void alc_update_knob_master(struc + uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); + if (!uctl) + return; +- val = snd_hda_codec_read(codec, jack->tbl->nid, 0, ++ val = snd_hda_codec_read(codec, jack->nid, 0, + AC_VERB_GET_VOLUME_KNOB_CONTROL, 0); + val &= HDA_AMP_VOLMASK; + uctl->value.integer.value[0] = val; +@@ -327,6 +327,7 @@ static void alc_fill_eapd_coef(struct hd + case 0x10ec0292: + alc_update_coef_idx(codec, 0x4, 1<<15, 0); + break; ++ case 0x10ec0225: + case 0x10ec0233: + case 0x10ec0255: + case 0x10ec0256: +@@ -900,6 +901,7 @@ static struct alc_codec_rename_pci_table + { 0x10ec0899, 0x1028, 0, "ALC3861" }, + { 0x10ec0298, 0x1028, 0, "ALC3266" }, + { 0x10ec0256, 0x1028, 0, "ALC3246" }, ++ { 0x10ec0225, 0x1028, 0, "ALC3253" }, + { 0x10ec0670, 0x1025, 0, "ALC669X" }, + { 0x10ec0676, 0x1025, 0, "ALC679X" }, + { 0x10ec0282, 0x1043, 0, "ALC3229" }, +@@ -1785,7 +1787,6 @@ enum { + ALC882_FIXUP_NO_PRIMARY_HP, + ALC887_FIXUP_ASUS_BASS, + ALC887_FIXUP_BASS_CHMAP, +- ALC882_FIXUP_DISABLE_AAMIX, + }; + + static void alc889_fixup_coef(struct hda_codec *codec, +@@ -1947,8 +1948,6 @@ static void alc882_fixup_no_primary_hp(s + + static void alc_fixup_bass_chmap(struct hda_codec *codec, + const struct hda_fixup *fix, int action); +-static void alc_fixup_disable_aamix(struct hda_codec *codec, +- const struct hda_fixup *fix, int action); + + static const struct hda_fixup alc882_fixups[] = { + [ALC882_FIXUP_ABIT_AW9D_MAX] = { +@@ -2186,10 +2185,6 @@ static const struct hda_fixup alc882_fix + .type = HDA_FIXUP_FUNC, + .v.func = alc_fixup_bass_chmap, + }, +- [ALC882_FIXUP_DISABLE_AAMIX] = { +- .type = HDA_FIXUP_FUNC, +- .v.func = alc_fixup_disable_aamix, +- }, + }; + + static const struct snd_pci_quirk alc882_fixup_tbl[] = { +@@ -2228,6 +2223,7 @@ static const struct snd_pci_quirk alc882 + SND_PCI_QUIRK(0x104d, 0x9047, "Sony Vaio TT", ALC889_FIXUP_VAIO_TT), + SND_PCI_QUIRK(0x104d, 0x905a, "Sony Vaio Z", ALC882_FIXUP_NO_PRIMARY_HP), + SND_PCI_QUIRK(0x104d, 0x9043, "Sony Vaio VGC-LN51JGB", ALC882_FIXUP_NO_PRIMARY_HP), ++ SND_PCI_QUIRK(0x104d, 0x9044, "Sony VAIO AiO", ALC882_FIXUP_NO_PRIMARY_HP), + + /* All Apple entries are in codec SSIDs */ + SND_PCI_QUIRK(0x106b, 0x00a0, "MacBookPro 3,1", ALC889_FIXUP_MBP_VREF), +@@ -2257,7 +2253,6 @@ static const struct snd_pci_quirk alc882 + SND_PCI_QUIRK(0x1462, 0x7350, "MSI-7350", ALC889_FIXUP_CD), + SND_PCI_QUIRK_VENDOR(0x1462, "MSI", ALC882_FIXUP_GPIO3), + SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte EP45-DS3/Z87X-UD3H", ALC889_FIXUP_FRONT_HP_NO_PRESENCE), +- SND_PCI_QUIRK(0x1458, 0xa182, "Gigabyte Z170X-UD3", ALC882_FIXUP_DISABLE_AAMIX), + SND_PCI_QUIRK(0x147b, 0x107a, "Abit AW9D-MAX", ALC882_FIXUP_ABIT_AW9D_MAX), + SND_PCI_QUIRK_VENDOR(0x1558, "Clevo laptop", ALC882_FIXUP_EAPD), + SND_PCI_QUIRK(0x161f, 0x2054, "Medion laptop", ALC883_FIXUP_EAPD), +@@ -2651,6 +2646,7 @@ enum { + ALC269_TYPE_ALC298, + ALC269_TYPE_ALC255, + ALC269_TYPE_ALC256, ++ ALC269_TYPE_ALC225, + }; + + /* +@@ -2680,6 +2676,7 @@ static int alc269_parse_auto_config(stru + case ALC269_TYPE_ALC298: + case ALC269_TYPE_ALC255: + case ALC269_TYPE_ALC256: ++ case ALC269_TYPE_ALC225: + ssids = alc269_ssids; + break; + default: +@@ -3658,6 +3655,16 @@ static void alc_headset_mode_unplugged(s + WRITE_COEF(0xb7, 0x802b), + {} + }; ++ static struct coef_fw coef0225[] = { ++ UPDATE_COEF(0x4a, 1<<8, 0), ++ UPDATE_COEFEX(0x57, 0x05, 1<<14, 0), ++ UPDATE_COEF(0x63, 3<<14, 3<<14), ++ UPDATE_COEF(0x4a, 3<<4, 2<<4), ++ UPDATE_COEF(0x4a, 3<<10, 3<<10), ++ UPDATE_COEF(0x45, 0x3f<<10, 0x34<<10), ++ UPDATE_COEF(0x4a, 3<<10, 0), ++ {} ++ }; + + switch (codec->core.vendor_id) { + case 0x10ec0255: +@@ -3682,6 +3689,9 @@ static void alc_headset_mode_unplugged(s + case 0x10ec0668: + alc_process_coef_fw(codec, coef0668); + break; ++ case 0x10ec0225: ++ alc_process_coef_fw(codec, coef0225); ++ break; + } + codec_dbg(codec, "Headset jack set to unplugged mode.\n"); + } +@@ -3727,6 +3737,13 @@ static void alc_headset_mode_mic_in(stru + UPDATE_COEF(0xc3, 0, 1<<12), + {} + }; ++ static struct coef_fw coef0225[] = { ++ UPDATE_COEFEX(0x57, 0x05, 1<<14, 1<<14), ++ UPDATE_COEF(0x4a, 3<<4, 2<<4), ++ UPDATE_COEF(0x63, 3<<14, 0), ++ {} ++ }; ++ + + switch (codec->core.vendor_id) { + case 0x10ec0255: +@@ -3772,6 +3789,12 @@ static void alc_headset_mode_mic_in(stru + alc_process_coef_fw(codec, coef0688); + snd_hda_set_pin_ctl_cache(codec, mic_pin, PIN_VREF50); + break; ++ case 0x10ec0225: ++ alc_update_coef_idx(codec, 0x45, 0x3f<<10, 0x31<<10); ++ snd_hda_set_pin_ctl_cache(codec, hp_pin, 0); ++ alc_process_coef_fw(codec, coef0225); ++ snd_hda_set_pin_ctl_cache(codec, mic_pin, PIN_VREF50); ++ break; + } + codec_dbg(codec, "Headset jack set to mic-in mode.\n"); + } +@@ -3884,6 +3907,13 @@ static void alc_headset_mode_ctia(struct + WRITE_COEF(0xc3, 0x0000), + {} + }; ++ static struct coef_fw coef0225[] = { ++ UPDATE_COEF(0x45, 0x3f<<10, 0x35<<10), ++ UPDATE_COEF(0x49, 1<<8, 1<<8), ++ UPDATE_COEF(0x4a, 7<<6, 7<<6), ++ UPDATE_COEF(0x4a, 3<<4, 3<<4), ++ {} ++ }; + + switch (codec->core.vendor_id) { + case 0x10ec0255: +@@ -3912,6 +3942,9 @@ static void alc_headset_mode_ctia(struct + case 0x10ec0668: + alc_process_coef_fw(codec, coef0688); + break; ++ case 0x10ec0225: ++ alc_process_coef_fw(codec, coef0225); ++ break; + } + codec_dbg(codec, "Headset jack set to iPhone-style headset mode.\n"); + } +@@ -3955,6 +3988,13 @@ static void alc_headset_mode_omtp(struct + WRITE_COEF(0xc3, 0x0000), + {} + }; ++ static struct coef_fw coef0225[] = { ++ UPDATE_COEF(0x45, 0x3f<<10, 0x39<<10), ++ UPDATE_COEF(0x49, 1<<8, 1<<8), ++ UPDATE_COEF(0x4a, 7<<6, 7<<6), ++ UPDATE_COEF(0x4a, 3<<4, 3<<4), ++ {} ++ }; + + switch (codec->core.vendor_id) { + case 0x10ec0255: +@@ -3983,6 +4023,9 @@ static void alc_headset_mode_omtp(struct + case 0x10ec0668: + alc_process_coef_fw(codec, coef0688); + break; ++ case 0x10ec0225: ++ alc_process_coef_fw(codec, coef0225); ++ break; + } + codec_dbg(codec, "Headset jack set to Nokia-style headset mode.\n"); + } +@@ -4014,6 +4057,11 @@ static void alc_determine_headset_type(s + WRITE_COEF(0xc3, 0x0c00), + {} + }; ++ static struct coef_fw coef0225[] = { ++ UPDATE_COEF(0x45, 0x3f<<10, 0x34<<10), ++ UPDATE_COEF(0x49, 1<<8, 1<<8), ++ {} ++ }; + + switch (codec->core.vendor_id) { + case 0x10ec0255: +@@ -4058,6 +4106,12 @@ static void alc_determine_headset_type(s + val = alc_read_coef_idx(codec, 0xbe); + is_ctia = (val & 0x1c02) == 0x1c02; + break; ++ case 0x10ec0225: ++ alc_process_coef_fw(codec, coef0225); ++ msleep(800); ++ val = alc_read_coef_idx(codec, 0x46); ++ is_ctia = (val & 0x00f0) == 0x00f0; ++ break; + } + + codec_dbg(codec, "Headset jack detected iPhone-style headset: %s\n", +@@ -4666,6 +4720,7 @@ enum { + ALC290_FIXUP_SUBWOOFER, + ALC290_FIXUP_SUBWOOFER_HSJACK, + ALC269_FIXUP_THINKPAD_ACPI, ++ ALC269_FIXUP_DMIC_THINKPAD_ACPI, + ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, + ALC255_FIXUP_DELL2_MIC_NO_PRESENCE, + ALC255_FIXUP_HEADSET_MODE, +@@ -4694,6 +4749,7 @@ enum { + ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE, + ALC293_FIXUP_LENOVO_SPK_NOISE, + ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY, ++ ALC255_FIXUP_DELL_SPK_NOISE, + }; + + static const struct hda_fixup alc269_fixups[] = { +@@ -5103,6 +5159,12 @@ static const struct hda_fixup alc269_fix + .type = HDA_FIXUP_FUNC, + .v.func = hda_fixup_thinkpad_acpi, + }, ++ [ALC269_FIXUP_DMIC_THINKPAD_ACPI] = { ++ .type = HDA_FIXUP_FUNC, ++ .v.func = alc_fixup_inv_dmic, ++ .chained = true, ++ .chain_id = ALC269_FIXUP_THINKPAD_ACPI, ++ }, + [ALC255_FIXUP_DELL1_MIC_NO_PRESENCE] = { + .type = HDA_FIXUP_PINS, + .v.pins = (const struct hda_pintbl[]) { +@@ -5307,6 +5369,12 @@ static const struct hda_fixup alc269_fix + .type = HDA_FIXUP_FUNC, + .v.func = alc233_fixup_lenovo_line2_mic_hotkey, + }, ++ [ALC255_FIXUP_DELL_SPK_NOISE] = { ++ .type = HDA_FIXUP_FUNC, ++ .v.func = alc_fixup_disable_aamix, ++ .chained = true, ++ .chain_id = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE ++ }, + }; + + static const struct snd_pci_quirk alc269_fixup_tbl[] = { +@@ -5318,12 +5386,14 @@ static const struct snd_pci_quirk alc269 + SND_PCI_QUIRK(0x1025, 0x080d, "Acer Aspire V5-122P", ALC269_FIXUP_ASPIRE_HEADSET_MIC), + SND_PCI_QUIRK(0x1025, 0x0740, "Acer AO725", ALC271_FIXUP_HP_GATE_MIC_JACK), + SND_PCI_QUIRK(0x1025, 0x0742, "Acer AO756", ALC271_FIXUP_HP_GATE_MIC_JACK), ++ SND_PCI_QUIRK(0x1025, 0x0762, "Acer Aspire E1-472", ALC271_FIXUP_HP_GATE_MIC_JACK_E1_572), + SND_PCI_QUIRK(0x1025, 0x0775, "Acer Aspire E1-572", ALC271_FIXUP_HP_GATE_MIC_JACK_E1_572), + SND_PCI_QUIRK(0x1025, 0x079b, "Acer Aspire V5-573G", ALC282_FIXUP_ASPIRE_V5_PINS), + SND_PCI_QUIRK(0x1025, 0x106d, "Acer Cloudbook 14", ALC283_FIXUP_CHROME_BOOK), + SND_PCI_QUIRK(0x1028, 0x0470, "Dell M101z", ALC269_FIXUP_DELL_M101Z), + SND_PCI_QUIRK(0x1028, 0x054b, "Dell XPS one 2710", ALC275_FIXUP_DELL_XPS), + SND_PCI_QUIRK(0x1028, 0x05bd, "Dell Latitude E6440", ALC292_FIXUP_DELL_E7X), ++ SND_PCI_QUIRK(0x1028, 0x05be, "Dell Latitude E6540", ALC292_FIXUP_DELL_E7X), + SND_PCI_QUIRK(0x1028, 0x05ca, "Dell Latitude E7240", ALC292_FIXUP_DELL_E7X), + SND_PCI_QUIRK(0x1028, 0x05cb, "Dell Latitude E7440", ALC292_FIXUP_DELL_E7X), + SND_PCI_QUIRK(0x1028, 0x05da, "Dell Vostro 5460", ALC290_FIXUP_SUBWOOFER), +@@ -5332,6 +5402,7 @@ static const struct snd_pci_quirk alc269 + SND_PCI_QUIRK(0x1028, 0x05f6, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE), + SND_PCI_QUIRK(0x1028, 0x0615, "Dell Vostro 5470", ALC290_FIXUP_SUBWOOFER_HSJACK), + SND_PCI_QUIRK(0x1028, 0x0616, "Dell Vostro 5470", ALC290_FIXUP_SUBWOOFER_HSJACK), ++ SND_PCI_QUIRK(0x1028, 0x062c, "Dell Latitude E5550", ALC292_FIXUP_DELL_E7X), + SND_PCI_QUIRK(0x1028, 0x062e, "Dell Latitude E7450", ALC292_FIXUP_DELL_E7X), + SND_PCI_QUIRK(0x1028, 0x0638, "Dell Inspiron 5439", ALC290_FIXUP_MONO_SPEAKERS_HSJACK), + SND_PCI_QUIRK(0x1028, 0x064a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE), +@@ -5347,6 +5418,7 @@ static const struct snd_pci_quirk alc269 + SND_PCI_QUIRK(0x1028, 0x06df, "Dell", ALC293_FIXUP_DISABLE_AAMIX_MULTIJACK), + SND_PCI_QUIRK(0x1028, 0x06e0, "Dell", ALC293_FIXUP_DISABLE_AAMIX_MULTIJACK), + SND_PCI_QUIRK(0x1028, 0x0704, "Dell XPS 13", ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE), ++ SND_PCI_QUIRK(0x1028, 0x0725, "Dell Inspiron 3162", ALC255_FIXUP_DELL_SPK_NOISE), + SND_PCI_QUIRK(0x1028, 0x164a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE), + SND_PCI_QUIRK(0x1028, 0x164b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE), + SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2), +@@ -5457,6 +5529,8 @@ static const struct snd_pci_quirk alc269 + SND_PCI_QUIRK(0x17aa, 0x2226, "ThinkPad X250", ALC292_FIXUP_TPT440_DOCK), + SND_PCI_QUIRK(0x17aa, 0x2233, "Thinkpad", ALC293_FIXUP_LENOVO_SPK_NOISE), + SND_PCI_QUIRK(0x17aa, 0x30bb, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY), ++ SND_PCI_QUIRK(0x17aa, 0x30e2, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY), ++ SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI), + SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC), + SND_PCI_QUIRK(0x17aa, 0x3978, "IdeaPad Y410P", ALC269_FIXUP_NO_SHUTUP), + SND_PCI_QUIRK(0x17aa, 0x5013, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST), +@@ -5550,6 +5624,9 @@ static const struct hda_model_fixup alc2 + {.id = ALC292_FIXUP_TPT440, .name = "tpt440"}, + {} + }; ++#define ALC225_STANDARD_PINS \ ++ {0x12, 0xb7a60130}, \ ++ {0x21, 0x04211020} + + #define ALC256_STANDARD_PINS \ + {0x12, 0x90a60140}, \ +@@ -5571,6 +5648,12 @@ static const struct hda_model_fixup alc2 + {0x21, 0x03211020} + + static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = { ++ SND_HDA_PIN_QUIRK(0x10ec0225, 0x1028, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE, ++ ALC225_STANDARD_PINS, ++ {0x14, 0x901701a0}), ++ SND_HDA_PIN_QUIRK(0x10ec0225, 0x1028, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE, ++ ALC225_STANDARD_PINS, ++ {0x14, 0x901701b0}), + SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL2_MIC_NO_PRESENCE, + {0x14, 0x90170110}, + {0x21, 0x02211020}), +@@ -5617,6 +5700,10 @@ static const struct snd_hda_pin_quirk al + {0x21, 0x02211040}), + SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x12, 0x90a60170}, ++ {0x14, 0x90171130}, ++ {0x21, 0x02211040}), ++ SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, ++ {0x12, 0x90a60170}, + {0x14, 0x90170140}, + {0x21, 0x02211050}), + SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell Inspiron 5548", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, +@@ -5892,6 +5979,9 @@ static int patch_alc269(struct hda_codec + spec->gen.mixer_nid = 0; /* ALC256 does not have any loopback mixer path */ + alc_update_coef_idx(codec, 0x36, 1 << 13, 1 << 5); /* Switch pcbeep path to Line in path*/ + break; ++ case 0x10ec0225: ++ spec->codec_variant = ALC269_TYPE_ALC225; ++ break; + } + + if (snd_hda_codec_read(codec, 0x51, 0, AC_VERB_PARAMETERS, 0) == 0x10ec5505) { +@@ -6552,6 +6642,7 @@ static const struct snd_pci_quirk alc662 + SND_PCI_QUIRK(0x1028, 0x069f, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE), + SND_PCI_QUIRK(0x103c, 0x1632, "HP RP5800", ALC662_FIXUP_HP_RP5800), + SND_PCI_QUIRK(0x1043, 0x11cd, "Asus N550", ALC662_FIXUP_BASS_1A), ++ SND_PCI_QUIRK(0x1043, 0x13df, "Asus N550JX", ALC662_FIXUP_BASS_1A), + SND_PCI_QUIRK(0x1043, 0x1477, "ASUS N56VZ", ALC662_FIXUP_BASS_MODE4_CHMAP), + SND_PCI_QUIRK(0x1043, 0x15a7, "ASUS UX51VZH", ALC662_FIXUP_BASS_16), + SND_PCI_QUIRK(0x1043, 0x1b73, "ASUS N55SF", ALC662_FIXUP_BASS_16), +@@ -6781,6 +6872,7 @@ static int patch_alc680(struct hda_codec + */ + static const struct hda_device_id snd_hda_id_realtek[] = { + HDA_CODEC_ENTRY(0x10ec0221, "ALC221", patch_alc269), ++ HDA_CODEC_ENTRY(0x10ec0225, "ALC225", patch_alc269), + HDA_CODEC_ENTRY(0x10ec0231, "ALC231", patch_alc269), + HDA_CODEC_ENTRY(0x10ec0233, "ALC233", patch_alc269), + HDA_CODEC_ENTRY(0x10ec0235, "ALC233", patch_alc269), +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/hda/patch_sigmatel.c linux-libre-4.4.7-gnu/sound/pci/hda/patch_sigmatel.c +--- linux-libre-4.4-gnu/sound/pci/hda/patch_sigmatel.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/hda/patch_sigmatel.c 2016-04-12 12:09:26.000000000 -0400 +@@ -493,9 +493,9 @@ static void jack_update_power(struct hda + if (!spec->num_pwrs) + return; + +- if (jack && jack->tbl->nid) { +- stac_toggle_power_map(codec, jack->tbl->nid, +- snd_hda_jack_detect(codec, jack->tbl->nid), ++ if (jack && jack->nid) { ++ stac_toggle_power_map(codec, jack->nid, ++ snd_hda_jack_detect(codec, jack->nid), + true); + return; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/intel8x0.c linux-libre-4.4.7-gnu/sound/pci/intel8x0.c +--- linux-libre-4.4-gnu/sound/pci/intel8x0.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/intel8x0.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2879,6 +2879,7 @@ static void intel8x0_measure_ac97_clock( + + static struct snd_pci_quirk intel8x0_clock_list[] = { + SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000), ++ SND_PCI_QUIRK(0x1014, 0x0581, "AD1981B", 48000), + SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100), + SND_PCI_QUIRK(0x1028, 0x0177, "AD1980", 48000), + SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000), +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/Kconfig linux-libre-4.4.7-gnu/sound/pci/Kconfig +--- linux-libre-4.4-gnu/sound/pci/Kconfig 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/Kconfig 2016-04-12 12:09:26.000000000 -0400 +@@ -155,6 +155,7 @@ config SND_AZT3328 + select SND_PCM + select SND_RAWMIDI + select SND_AC97_CODEC ++ select SND_TIMER + depends on ZONE_DMA + help + Say Y here to include support for Aztech AZF3328 (PCI168) +@@ -463,6 +464,7 @@ config SND_EMU10K1 + select SND_HWDEP + select SND_RAWMIDI + select SND_AC97_CODEC ++ select SND_TIMER + depends on ZONE_DMA + help + Say Y to include support for Sound Blaster PCI 512, Live!, +@@ -889,6 +891,7 @@ config SND_YMFPCI + select SND_OPL3_LIB + select SND_MPU401_UART + select SND_AC97_CODEC ++ select SND_TIMER + help + Say Y here to include support for Yamaha PCI audio chips - + YMF724, YMF724F, YMF740, YMF740C, YMF744, YMF754. +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/rme9652/hdsp.c linux-libre-4.4.7-gnu/sound/pci/rme9652/hdsp.c +--- linux-libre-4.4-gnu/sound/pci/rme9652/hdsp.c 2016-01-10 21:17:44.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/rme9652/hdsp.c 2016-04-12 21:33:22.000000000 -0400 +@@ -2875,7 +2875,7 @@ static int snd_hdsp_get_dds_offset(struc + { + struct hdsp *hdsp = snd_kcontrol_chip(kcontrol); + +- ucontrol->value.enumerated.item[0] = hdsp_dds_offset(hdsp); ++ ucontrol->value.integer.value[0] = hdsp_dds_offset(hdsp); + return 0; + } + +@@ -2887,7 +2887,7 @@ static int snd_hdsp_put_dds_offset(struc + + if (!snd_hdsp_use_is_exclusive(hdsp)) + return -EBUSY; +- val = ucontrol->value.enumerated.item[0]; ++ val = ucontrol->value.integer.value[0]; + spin_lock_irq(&hdsp->lock); + if (val != hdsp_dds_offset(hdsp)) + change = (hdsp_set_dds_offset(hdsp, val) == 0) ? 1 : 0; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/pci/rme9652/hdspm.c linux-libre-4.4.7-gnu/sound/pci/rme9652/hdspm.c +--- linux-libre-4.4-gnu/sound/pci/rme9652/hdspm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/pci/rme9652/hdspm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1601,6 +1601,9 @@ static void hdspm_set_dds_value(struct h + { + u64 n; + ++ if (snd_BUG_ON(rate <= 0)) ++ return; ++ + if (rate >= 112000) + rate /= 4; + else if (rate >= 56000) +@@ -2215,6 +2218,8 @@ static int hdspm_get_system_sample_rate( + } else { + /* slave mode, return external sample rate */ + rate = hdspm_external_sample_rate(hdspm); ++ if (!rate) ++ rate = hdspm->system_sample_rate; + } + } + +@@ -2260,8 +2265,11 @@ static int snd_hdspm_put_system_sample_r + ucontrol) + { + struct hdspm *hdspm = snd_kcontrol_chip(kcontrol); ++ int rate = ucontrol->value.integer.value[0]; + +- hdspm_set_dds_value(hdspm, ucontrol->value.enumerated.item[0]); ++ if (rate < 27000 || rate > 207000) ++ return -EINVAL; ++ hdspm_set_dds_value(hdspm, ucontrol->value.integer.value[0]); + return 0; + } + +@@ -4449,7 +4457,7 @@ static int snd_hdspm_get_tco_word_term(s + { + struct hdspm *hdspm = snd_kcontrol_chip(kcontrol); + +- ucontrol->value.enumerated.item[0] = hdspm->tco->term; ++ ucontrol->value.integer.value[0] = hdspm->tco->term; + + return 0; + } +@@ -4460,8 +4468,8 @@ static int snd_hdspm_put_tco_word_term(s + { + struct hdspm *hdspm = snd_kcontrol_chip(kcontrol); + +- if (hdspm->tco->term != ucontrol->value.enumerated.item[0]) { +- hdspm->tco->term = ucontrol->value.enumerated.item[0]; ++ if (hdspm->tco->term != ucontrol->value.integer.value[0]) { ++ hdspm->tco->term = ucontrol->value.integer.value[0]; + + hdspm_tco_write(hdspm); + +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/codecs/rt5645.c linux-libre-4.4.7-gnu/sound/soc/codecs/rt5645.c +--- linux-libre-4.4-gnu/sound/soc/codecs/rt5645.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/codecs/rt5645.c 2016-04-12 12:09:26.000000000 -0400 +@@ -621,7 +621,7 @@ static const struct snd_kcontrol_new rt5 + + /* IN1/IN2 Control */ + SOC_SINGLE_TLV("IN1 Boost", RT5645_IN1_CTRL1, +- RT5645_BST_SFT1, 8, 0, bst_tlv), ++ RT5645_BST_SFT1, 12, 0, bst_tlv), + SOC_SINGLE_TLV("IN2 Boost", RT5645_IN2_CTRL, + RT5645_BST_SFT2, 8, 0, bst_tlv), + +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/codecs/wm5110.c linux-libre-4.4.7-gnu/sound/soc/codecs/wm5110.c +--- linux-libre-4.4-gnu/sound/soc/codecs/wm5110.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/codecs/wm5110.c 2016-04-12 12:09:26.000000000 -0400 +@@ -360,15 +360,13 @@ static int wm5110_hp_ev(struct snd_soc_d + + static int wm5110_clear_pga_volume(struct arizona *arizona, int output) + { +- struct reg_sequence clear_pga = { +- ARIZONA_OUTPUT_PATH_CONFIG_1L + output * 4, 0x80 +- }; ++ unsigned int reg = ARIZONA_OUTPUT_PATH_CONFIG_1L + output * 4; + int ret; + +- ret = regmap_multi_reg_write_bypassed(arizona->regmap, &clear_pga, 1); ++ ret = regmap_write(arizona->regmap, reg, 0x80); + if (ret) + dev_err(arizona->dev, "Failed to clear PGA (0x%x): %d\n", +- clear_pga.reg, ret); ++ reg, ret); + + return ret; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/codecs/wm8958-dsp2.c linux-libre-4.4.7-gnu/sound/soc/codecs/wm8958-dsp2.c +--- linux-libre-4.4-gnu/sound/soc/codecs/wm8958-dsp2.c 2016-01-10 21:18:35.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/codecs/wm8958-dsp2.c 2016-04-12 21:34:14.000000000 -0400 +@@ -459,7 +459,7 @@ static int wm8958_put_mbc_enum(struct sn + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + struct wm8994 *control = wm8994->wm8994; +- int value = ucontrol->value.integer.value[0]; ++ int value = ucontrol->value.enumerated.item[0]; + int reg; + + /* Don't allow on the fly reconfiguration */ +@@ -549,7 +549,7 @@ static int wm8958_put_vss_enum(struct sn + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + struct wm8994 *control = wm8994->wm8994; +- int value = ucontrol->value.integer.value[0]; ++ int value = ucontrol->value.enumerated.item[0]; + int reg; + + /* Don't allow on the fly reconfiguration */ +@@ -582,7 +582,7 @@ static int wm8958_put_vss_hpf_enum(struc + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + struct wm8994 *control = wm8994->wm8994; +- int value = ucontrol->value.integer.value[0]; ++ int value = ucontrol->value.enumerated.item[0]; + int reg; + + /* Don't allow on the fly reconfiguration */ +@@ -749,7 +749,7 @@ static int wm8958_put_enh_eq_enum(struct + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + struct wm8994 *control = wm8994->wm8994; +- int value = ucontrol->value.integer.value[0]; ++ int value = ucontrol->value.enumerated.item[0]; + int reg; + + /* Don't allow on the fly reconfiguration */ +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/codecs/wm8994.c linux-libre-4.4.7-gnu/sound/soc/codecs/wm8994.c +--- linux-libre-4.4-gnu/sound/soc/codecs/wm8994.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/codecs/wm8994.c 2016-04-12 12:09:26.000000000 -0400 +@@ -362,7 +362,7 @@ static int wm8994_put_drc_enum(struct sn + struct wm8994 *control = wm8994->wm8994; + struct wm8994_pdata *pdata = &control->pdata; + int drc = wm8994_get_drc(kcontrol->id.name); +- int value = ucontrol->value.integer.value[0]; ++ int value = ucontrol->value.enumerated.item[0]; + + if (drc < 0) + return drc; +@@ -469,7 +469,7 @@ static int wm8994_put_retune_mobile_enum + struct wm8994 *control = wm8994->wm8994; + struct wm8994_pdata *pdata = &control->pdata; + int block = wm8994_get_retune_mobile_block(kcontrol->id.name); +- int value = ucontrol->value.integer.value[0]; ++ int value = ucontrol->value.enumerated.item[0]; + + if (block < 0) + return block; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/samsung/ac97.c linux-libre-4.4.7-gnu/sound/soc/samsung/ac97.c +--- linux-libre-4.4-gnu/sound/soc/samsung/ac97.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/samsung/ac97.c 2016-04-12 12:09:26.000000000 -0400 +@@ -324,7 +324,7 @@ static const struct snd_soc_component_dr + + static int s3c_ac97_probe(struct platform_device *pdev) + { +- struct resource *mem_res, *dmatx_res, *dmarx_res, *dmamic_res, *irq_res; ++ struct resource *mem_res, *irq_res; + struct s3c_audio_pdata *ac97_pdata; + int ret; + +@@ -335,24 +335,6 @@ static int s3c_ac97_probe(struct platfor + } + + /* Check for availability of necessary resource */ +- dmatx_res = platform_get_resource(pdev, IORESOURCE_DMA, 0); +- if (!dmatx_res) { +- dev_err(&pdev->dev, "Unable to get AC97-TX dma resource\n"); +- return -ENXIO; +- } +- +- dmarx_res = platform_get_resource(pdev, IORESOURCE_DMA, 1); +- if (!dmarx_res) { +- dev_err(&pdev->dev, "Unable to get AC97-RX dma resource\n"); +- return -ENXIO; +- } +- +- dmamic_res = platform_get_resource(pdev, IORESOURCE_DMA, 2); +- if (!dmamic_res) { +- dev_err(&pdev->dev, "Unable to get AC97-MIC dma resource\n"); +- return -ENXIO; +- } +- + irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!irq_res) { + dev_err(&pdev->dev, "AC97 IRQ not provided!\n"); +@@ -364,11 +346,11 @@ static int s3c_ac97_probe(struct platfor + if (IS_ERR(s3c_ac97.regs)) + return PTR_ERR(s3c_ac97.regs); + +- s3c_ac97_pcm_out.channel = dmatx_res->start; ++ s3c_ac97_pcm_out.slave = ac97_pdata->dma_playback; + s3c_ac97_pcm_out.dma_addr = mem_res->start + S3C_AC97_PCM_DATA; +- s3c_ac97_pcm_in.channel = dmarx_res->start; ++ s3c_ac97_pcm_in.slave = ac97_pdata->dma_capture; + s3c_ac97_pcm_in.dma_addr = mem_res->start + S3C_AC97_PCM_DATA; +- s3c_ac97_mic_in.channel = dmamic_res->start; ++ s3c_ac97_mic_in.slave = ac97_pdata->dma_capture_mic; + s3c_ac97_mic_in.dma_addr = mem_res->start + S3C_AC97_MIC_DATA; + + init_completion(&s3c_ac97.done); +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/samsung/dmaengine.c linux-libre-4.4.7-gnu/sound/soc/samsung/dmaengine.c +--- linux-libre-4.4-gnu/sound/soc/samsung/dmaengine.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/samsung/dmaengine.c 2016-04-12 12:09:26.000000000 -0400 +@@ -50,14 +50,14 @@ void samsung_asoc_init_dma_data(struct s + + if (playback) { + playback_data = &playback->dma_data; +- playback_data->filter_data = (void *)playback->channel; ++ playback_data->filter_data = playback->slave; + playback_data->chan_name = playback->ch_name; + playback_data->addr = playback->dma_addr; + playback_data->addr_width = playback->dma_size; + } + if (capture) { + capture_data = &capture->dma_data; +- capture_data->filter_data = (void *)capture->channel; ++ capture_data->filter_data = capture->slave; + capture_data->chan_name = capture->ch_name; + capture_data->addr = capture->dma_addr; + capture_data->addr_width = capture->dma_size; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/samsung/dma.h linux-libre-4.4.7-gnu/sound/soc/samsung/dma.h +--- linux-libre-4.4-gnu/sound/soc/samsung/dma.h 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/samsung/dma.h 2016-04-12 12:09:26.000000000 -0400 +@@ -15,7 +15,7 @@ + #include <sound/dmaengine_pcm.h> + + struct s3c_dma_params { +- int channel; /* Channel ID */ ++ void *slave; /* Channel ID */ + dma_addr_t dma_addr; + int dma_size; /* Size of the DMA transfer */ + char *ch_name; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/samsung/i2s.c linux-libre-4.4.7-gnu/sound/soc/samsung/i2s.c +--- linux-libre-4.4-gnu/sound/soc/samsung/i2s.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/samsung/i2s.c 2016-04-12 12:09:26.000000000 -0400 +@@ -480,10 +480,11 @@ static int i2s_set_sysclk(struct snd_soc + unsigned int cdcon_mask = 1 << i2s_regs->cdclkcon_off; + unsigned int rsrc_mask = 1 << i2s_regs->rclksrc_off; + u32 mod, mask, val = 0; ++ unsigned long flags; + +- spin_lock(i2s->lock); ++ spin_lock_irqsave(i2s->lock, flags); + mod = readl(i2s->addr + I2SMOD); +- spin_unlock(i2s->lock); ++ spin_unlock_irqrestore(i2s->lock, flags); + + switch (clk_id) { + case SAMSUNG_I2S_OPCLK: +@@ -574,11 +575,11 @@ static int i2s_set_sysclk(struct snd_soc + return -EINVAL; + } + +- spin_lock(i2s->lock); ++ spin_lock_irqsave(i2s->lock, flags); + mod = readl(i2s->addr + I2SMOD); + mod = (mod & ~mask) | val; + writel(mod, i2s->addr + I2SMOD); +- spin_unlock(i2s->lock); ++ spin_unlock_irqrestore(i2s->lock, flags); + + return 0; + } +@@ -589,6 +590,7 @@ static int i2s_set_fmt(struct snd_soc_da + struct i2s_dai *i2s = to_info(dai); + int lrp_shift, sdf_shift, sdf_mask, lrp_rlow, mod_slave; + u32 mod, tmp = 0; ++ unsigned long flags; + + lrp_shift = i2s->variant_regs->lrp_off; + sdf_shift = i2s->variant_regs->sdf_off; +@@ -648,7 +650,7 @@ static int i2s_set_fmt(struct snd_soc_da + return -EINVAL; + } + +- spin_lock(i2s->lock); ++ spin_lock_irqsave(i2s->lock, flags); + mod = readl(i2s->addr + I2SMOD); + /* + * Don't change the I2S mode if any controller is active on this +@@ -656,7 +658,7 @@ static int i2s_set_fmt(struct snd_soc_da + */ + if (any_active(i2s) && + ((mod & (sdf_mask | lrp_rlow | mod_slave)) != tmp)) { +- spin_unlock(i2s->lock); ++ spin_unlock_irqrestore(i2s->lock, flags); + dev_err(&i2s->pdev->dev, + "%s:%d Other DAI busy\n", __func__, __LINE__); + return -EAGAIN; +@@ -665,7 +667,7 @@ static int i2s_set_fmt(struct snd_soc_da + mod &= ~(sdf_mask | lrp_rlow | mod_slave); + mod |= tmp; + writel(mod, i2s->addr + I2SMOD); +- spin_unlock(i2s->lock); ++ spin_unlock_irqrestore(i2s->lock, flags); + + return 0; + } +@@ -675,6 +677,7 @@ static int i2s_hw_params(struct snd_pcm_ + { + struct i2s_dai *i2s = to_info(dai); + u32 mod, mask = 0, val = 0; ++ unsigned long flags; + + if (!is_secondary(i2s)) + mask |= (MOD_DC2_EN | MOD_DC1_EN); +@@ -743,11 +746,11 @@ static int i2s_hw_params(struct snd_pcm_ + return -EINVAL; + } + +- spin_lock(i2s->lock); ++ spin_lock_irqsave(i2s->lock, flags); + mod = readl(i2s->addr + I2SMOD); + mod = (mod & ~mask) | val; + writel(mod, i2s->addr + I2SMOD); +- spin_unlock(i2s->lock); ++ spin_unlock_irqrestore(i2s->lock, flags); + + samsung_asoc_init_dma_data(dai, &i2s->dma_playback, &i2s->dma_capture); + +@@ -1257,27 +1260,14 @@ static int samsung_i2s_probe(struct plat + pri_dai->lock = &pri_dai->spinlock; + + if (!np) { +- res = platform_get_resource(pdev, IORESOURCE_DMA, 0); +- if (!res) { +- dev_err(&pdev->dev, +- "Unable to get I2S-TX dma resource\n"); +- return -ENXIO; +- } +- pri_dai->dma_playback.channel = res->start; +- +- res = platform_get_resource(pdev, IORESOURCE_DMA, 1); +- if (!res) { +- dev_err(&pdev->dev, +- "Unable to get I2S-RX dma resource\n"); +- return -ENXIO; +- } +- pri_dai->dma_capture.channel = res->start; +- + if (i2s_pdata == NULL) { + dev_err(&pdev->dev, "Can't work without s3c_audio_pdata\n"); + return -EINVAL; + } + ++ pri_dai->dma_playback.slave = i2s_pdata->dma_playback; ++ pri_dai->dma_capture.slave = i2s_pdata->dma_capture; ++ + if (&i2s_pdata->type) + i2s_cfg = &i2s_pdata->type.i2s; + +@@ -1338,11 +1328,8 @@ static int samsung_i2s_probe(struct plat + sec_dai->dma_playback.dma_addr = regs_base + I2STXDS; + sec_dai->dma_playback.ch_name = "tx-sec"; + +- if (!np) { +- res = platform_get_resource(pdev, IORESOURCE_DMA, 2); +- if (res) +- sec_dai->dma_playback.channel = res->start; +- } ++ if (!np) ++ sec_dai->dma_playback.slave = i2s_pdata->dma_play_sec; + + sec_dai->dma_playback.dma_size = 4; + sec_dai->addr = pri_dai->addr; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/samsung/pcm.c linux-libre-4.4.7-gnu/sound/soc/samsung/pcm.c +--- linux-libre-4.4-gnu/sound/soc/samsung/pcm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/samsung/pcm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -486,7 +486,7 @@ static const struct snd_soc_component_dr + static int s3c_pcm_dev_probe(struct platform_device *pdev) + { + struct s3c_pcm_info *pcm; +- struct resource *mem_res, *dmatx_res, *dmarx_res; ++ struct resource *mem_res; + struct s3c_audio_pdata *pcm_pdata; + int ret; + +@@ -499,18 +499,6 @@ static int s3c_pcm_dev_probe(struct plat + pcm_pdata = pdev->dev.platform_data; + + /* Check for availability of necessary resource */ +- dmatx_res = platform_get_resource(pdev, IORESOURCE_DMA, 0); +- if (!dmatx_res) { +- dev_err(&pdev->dev, "Unable to get PCM-TX dma resource\n"); +- return -ENXIO; +- } +- +- dmarx_res = platform_get_resource(pdev, IORESOURCE_DMA, 1); +- if (!dmarx_res) { +- dev_err(&pdev->dev, "Unable to get PCM-RX dma resource\n"); +- return -ENXIO; +- } +- + mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem_res) { + dev_err(&pdev->dev, "Unable to get register resource\n"); +@@ -568,8 +556,10 @@ static int s3c_pcm_dev_probe(struct plat + s3c_pcm_stereo_out[pdev->id].dma_addr = mem_res->start + + S3C_PCM_TXFIFO; + +- s3c_pcm_stereo_in[pdev->id].channel = dmarx_res->start; +- s3c_pcm_stereo_out[pdev->id].channel = dmatx_res->start; ++ if (pcm_pdata) { ++ s3c_pcm_stereo_in[pdev->id].slave = pcm_pdata->dma_capture; ++ s3c_pcm_stereo_out[pdev->id].slave = pcm_pdata->dma_playback; ++ } + + pcm->dma_capture = &s3c_pcm_stereo_in[pdev->id]; + pcm->dma_playback = &s3c_pcm_stereo_out[pdev->id]; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/samsung/s3c2412-i2s.c linux-libre-4.4.7-gnu/sound/soc/samsung/s3c2412-i2s.c +--- linux-libre-4.4-gnu/sound/soc/samsung/s3c2412-i2s.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/samsung/s3c2412-i2s.c 2016-04-12 12:09:26.000000000 -0400 +@@ -34,13 +34,13 @@ + #include "s3c2412-i2s.h" + + static struct s3c_dma_params s3c2412_i2s_pcm_stereo_out = { +- .channel = DMACH_I2S_OUT, ++ .slave = (void *)(uintptr_t)DMACH_I2S_OUT, + .ch_name = "tx", + .dma_size = 4, + }; + + static struct s3c_dma_params s3c2412_i2s_pcm_stereo_in = { +- .channel = DMACH_I2S_IN, ++ .slave = (void *)(uintptr_t)DMACH_I2S_IN, + .ch_name = "rx", + .dma_size = 4, + }; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/samsung/s3c24xx-i2s.c linux-libre-4.4.7-gnu/sound/soc/samsung/s3c24xx-i2s.c +--- linux-libre-4.4-gnu/sound/soc/samsung/s3c24xx-i2s.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/samsung/s3c24xx-i2s.c 2016-04-12 12:09:26.000000000 -0400 +@@ -32,13 +32,13 @@ + #include "s3c24xx-i2s.h" + + static struct s3c_dma_params s3c24xx_i2s_pcm_stereo_out = { +- .channel = DMACH_I2S_OUT, ++ .slave = (void *)(uintptr_t)DMACH_I2S_OUT, + .ch_name = "tx", + .dma_size = 2, + }; + + static struct s3c_dma_params s3c24xx_i2s_pcm_stereo_in = { +- .channel = DMACH_I2S_IN, ++ .slave = (void *)(uintptr_t)DMACH_I2S_IN, + .ch_name = "rx", + .dma_size = 2, + }; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/samsung/spdif.c linux-libre-4.4.7-gnu/sound/soc/samsung/spdif.c +--- linux-libre-4.4-gnu/sound/soc/samsung/spdif.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/samsung/spdif.c 2016-04-12 12:09:26.000000000 -0400 +@@ -359,7 +359,7 @@ static const struct snd_soc_component_dr + static int spdif_probe(struct platform_device *pdev) + { + struct s3c_audio_pdata *spdif_pdata; +- struct resource *mem_res, *dma_res; ++ struct resource *mem_res; + struct samsung_spdif_info *spdif; + int ret; + +@@ -367,12 +367,6 @@ static int spdif_probe(struct platform_d + + dev_dbg(&pdev->dev, "Entered %s\n", __func__); + +- dma_res = platform_get_resource(pdev, IORESOURCE_DMA, 0); +- if (!dma_res) { +- dev_err(&pdev->dev, "Unable to get dma resource.\n"); +- return -ENXIO; +- } +- + mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem_res) { + dev_err(&pdev->dev, "Unable to get register resource.\n"); +@@ -432,7 +426,7 @@ static int spdif_probe(struct platform_d + + spdif_stereo_out.dma_size = 2; + spdif_stereo_out.dma_addr = mem_res->start + DATA_OUTBUF; +- spdif_stereo_out.channel = dma_res->start; ++ spdif_stereo_out.slave = spdif_pdata ? spdif_pdata->dma_playback : NULL; + + spdif->dma_playback = &spdif_stereo_out; + +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/soc-compress.c linux-libre-4.4.7-gnu/sound/soc/soc-compress.c +--- linux-libre-4.4-gnu/sound/soc/soc-compress.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/soc-compress.c 2016-04-12 12:09:26.000000000 -0400 +@@ -630,6 +630,7 @@ int snd_soc_new_compress(struct snd_soc_ + struct snd_pcm *be_pcm; + char new_name[64]; + int ret = 0, direction = 0; ++ int playback = 0, capture = 0; + + if (rtd->num_codecs > 1) { + dev_err(rtd->card->dev, "Multicodec not supported for compressed stream\n"); +@@ -641,11 +642,27 @@ int snd_soc_new_compress(struct snd_soc_ + rtd->dai_link->stream_name, codec_dai->name, num); + + if (codec_dai->driver->playback.channels_min) ++ playback = 1; ++ if (codec_dai->driver->capture.channels_min) ++ capture = 1; ++ ++ capture = capture && cpu_dai->driver->capture.channels_min; ++ playback = playback && cpu_dai->driver->playback.channels_min; ++ ++ /* ++ * Compress devices are unidirectional so only one of the directions ++ * should be set, check for that (xor) ++ */ ++ if (playback + capture != 1) { ++ dev_err(rtd->card->dev, "Invalid direction for compress P %d, C %d\n", ++ playback, capture); ++ return -EINVAL; ++ } ++ ++ if(playback) + direction = SND_COMPRESS_PLAYBACK; +- else if (codec_dai->driver->capture.channels_min) +- direction = SND_COMPRESS_CAPTURE; + else +- return -EINVAL; ++ direction = SND_COMPRESS_CAPTURE; + + compr = kzalloc(sizeof(*compr), GFP_KERNEL); + if (compr == NULL) { +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/soc-dapm.c linux-libre-4.4.7-gnu/sound/soc/soc-dapm.c +--- linux-libre-4.4-gnu/sound/soc/soc-dapm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/soc-dapm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -3568,7 +3568,7 @@ static int snd_soc_dapm_dai_link_get(str + { + struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); + +- ucontrol->value.integer.value[0] = w->params_select; ++ ucontrol->value.enumerated.item[0] = w->params_select; + + return 0; + } +@@ -3582,13 +3582,13 @@ static int snd_soc_dapm_dai_link_put(str + if (w->power) + return -EBUSY; + +- if (ucontrol->value.integer.value[0] == w->params_select) ++ if (ucontrol->value.enumerated.item[0] == w->params_select) + return 0; + +- if (ucontrol->value.integer.value[0] >= w->num_params) ++ if (ucontrol->value.enumerated.item[0] >= w->num_params) + return -EINVAL; + +- w->params_select = ucontrol->value.integer.value[0]; ++ w->params_select = ucontrol->value.enumerated.item[0]; + + return 0; + } +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/soc/soc-pcm.c linux-libre-4.4.7-gnu/sound/soc/soc-pcm.c +--- linux-libre-4.4-gnu/sound/soc/soc-pcm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/soc/soc-pcm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1743,7 +1743,8 @@ int dpcm_be_dai_hw_free(struct snd_soc_p + (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && + (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && + (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) && +- (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) ++ (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) && ++ (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) + continue; + + dev_dbg(be->dev, "ASoC: hw_free BE %s\n", +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/sparc/Kconfig linux-libre-4.4.7-gnu/sound/sparc/Kconfig +--- linux-libre-4.4-gnu/sound/sparc/Kconfig 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/sparc/Kconfig 2016-04-12 12:09:26.000000000 -0400 +@@ -22,6 +22,7 @@ config SND_SUN_AMD7930 + config SND_SUN_CS4231 + tristate "Sun CS4231" + select SND_PCM ++ select SND_TIMER + help + Say Y here to include support for CS4231 sound device on Sun. + +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/usb/card.c linux-libre-4.4.7-gnu/sound/usb/card.c +--- linux-libre-4.4-gnu/sound/usb/card.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/usb/card.c 2016-04-12 12:09:26.000000000 -0400 +@@ -675,6 +675,8 @@ int snd_usb_autoresume(struct snd_usb_au + + void snd_usb_autosuspend(struct snd_usb_audio *chip) + { ++ if (atomic_read(&chip->shutdown)) ++ return; + if (atomic_dec_and_test(&chip->active)) + usb_autopm_put_interface(chip->pm_intf); + } +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/usb/clock.c linux-libre-4.4.7-gnu/sound/usb/clock.c +--- linux-libre-4.4-gnu/sound/usb/clock.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/usb/clock.c 2016-04-12 12:09:26.000000000 -0400 +@@ -285,6 +285,8 @@ static int set_sample_rate_v1(struct snd + unsigned char data[3]; + int err, crate; + ++ if (get_iface_desc(alts)->bNumEndpoints < 1) ++ return -EINVAL; + ep = get_endpoint(alts, 0)->bEndpointAddress; + + /* if endpoint doesn't have sampling rate control, bail out */ +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/usb/endpoint.c linux-libre-4.4.7-gnu/sound/usb/endpoint.c +--- linux-libre-4.4-gnu/sound/usb/endpoint.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/usb/endpoint.c 2016-04-12 12:09:26.000000000 -0400 +@@ -438,6 +438,9 @@ exit_clear: + * + * New endpoints will be added to chip->ep_list and must be freed by + * calling snd_usb_endpoint_free(). ++ * ++ * For SND_USB_ENDPOINT_TYPE_SYNC, the caller needs to guarantee that ++ * bNumEndpoints > 1 beforehand. + */ + struct snd_usb_endpoint *snd_usb_add_endpoint(struct snd_usb_audio *chip, + struct usb_host_interface *alts, +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/usb/midi.c linux-libre-4.4.7-gnu/sound/usb/midi.c +--- linux-libre-4.4-gnu/sound/usb/midi.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/usb/midi.c 2016-04-12 12:09:26.000000000 -0400 +@@ -2454,7 +2454,6 @@ int snd_usbmidi_create(struct snd_card * + else + err = snd_usbmidi_create_endpoints(umidi, endpoints); + if (err < 0) { +- snd_usbmidi_free(umidi); + return err; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/usb/mixer_quirks.c linux-libre-4.4.7-gnu/sound/usb/mixer_quirks.c +--- linux-libre-4.4-gnu/sound/usb/mixer_quirks.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/usb/mixer_quirks.c 2016-04-12 12:09:26.000000000 -0400 +@@ -793,7 +793,7 @@ static int snd_nativeinstruments_control + return 0; + + kcontrol->private_value &= ~(0xff << 24); +- kcontrol->private_value |= newval; ++ kcontrol->private_value |= (unsigned int)newval << 24; + err = snd_ni_update_cur_val(list); + return err < 0 ? err : 1; + } +@@ -1519,7 +1519,11 @@ static int snd_microii_spdif_default_get + + /* use known values for that card: interface#1 altsetting#1 */ + iface = usb_ifnum_to_if(chip->dev, 1); ++ if (!iface || iface->num_altsetting < 2) ++ return -EINVAL; + alts = &iface->altsetting[1]; ++ if (get_iface_desc(alts)->bNumEndpoints < 1) ++ return -EINVAL; + ep = get_endpoint(alts, 0)->bEndpointAddress; + + err = snd_usb_ctl_msg(chip->dev, +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/usb/pcm.c linux-libre-4.4.7-gnu/sound/usb/pcm.c +--- linux-libre-4.4-gnu/sound/usb/pcm.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/usb/pcm.c 2016-04-12 12:09:26.000000000 -0400 +@@ -159,6 +159,8 @@ static int init_pitch_v1(struct snd_usb_ + unsigned char data[1]; + int err; + ++ if (get_iface_desc(alts)->bNumEndpoints < 1) ++ return -EINVAL; + ep = get_endpoint(alts, 0)->bEndpointAddress; + + data[0] = 1; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/usb/quirks.c linux-libre-4.4.7-gnu/sound/usb/quirks.c +--- linux-libre-4.4-gnu/sound/usb/quirks.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/usb/quirks.c 2016-04-12 12:09:26.000000000 -0400 +@@ -150,6 +150,7 @@ static int create_fixed_stream_quirk(str + usb_audio_err(chip, "cannot memdup\n"); + return -ENOMEM; + } ++ INIT_LIST_HEAD(&fp->list); + if (fp->nr_rates > MAX_NR_RATES) { + kfree(fp); + return -EINVAL; +@@ -167,19 +168,20 @@ static int create_fixed_stream_quirk(str + stream = (fp->endpoint & USB_DIR_IN) + ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; + err = snd_usb_add_audio_stream(chip, stream, fp); +- if (err < 0) { +- kfree(fp); +- kfree(rate_table); +- return err; +- } ++ if (err < 0) ++ goto error; + if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber || + fp->altset_idx >= iface->num_altsetting) { +- kfree(fp); +- kfree(rate_table); +- return -EINVAL; ++ err = -EINVAL; ++ goto error; + } + alts = &iface->altsetting[fp->altset_idx]; + altsd = get_iface_desc(alts); ++ if (altsd->bNumEndpoints < 1) { ++ err = -EINVAL; ++ goto error; ++ } ++ + fp->protocol = altsd->bInterfaceProtocol; + + if (fp->datainterval == 0) +@@ -190,6 +192,12 @@ static int create_fixed_stream_quirk(str + snd_usb_init_pitch(chip, fp->iface, alts, fp); + snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max); + return 0; ++ ++ error: ++ list_del(&fp->list); /* unlink for avoiding double-free */ ++ kfree(fp); ++ kfree(rate_table); ++ return err; + } + + static int create_auto_pcm_quirk(struct snd_usb_audio *chip, +@@ -462,6 +470,7 @@ static int create_uaxx_quirk(struct snd_ + fp->ep_attr = get_endpoint(alts, 0)->bmAttributes; + fp->datainterval = 0; + fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); ++ INIT_LIST_HEAD(&fp->list); + + switch (fp->maxpacksize) { + case 0x120: +@@ -485,6 +494,7 @@ static int create_uaxx_quirk(struct snd_ + ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; + err = snd_usb_add_audio_stream(chip, stream, fp); + if (err < 0) { ++ list_del(&fp->list); /* unlink for avoiding double-free */ + kfree(fp); + return err; + } +@@ -1121,8 +1131,11 @@ bool snd_usb_get_sample_rate_quirk(struc + switch (chip->usb_id) { + case USB_ID(0x045E, 0x075D): /* MS Lifecam Cinema */ + case USB_ID(0x045E, 0x076D): /* MS Lifecam HD-5000 */ ++ case USB_ID(0x045E, 0x076E): /* MS Lifecam HD-5001 */ ++ case USB_ID(0x045E, 0x076F): /* MS Lifecam HD-6000 */ + case USB_ID(0x045E, 0x0772): /* MS Lifecam Studio */ + case USB_ID(0x045E, 0x0779): /* MS Lifecam HD-3000 */ ++ case USB_ID(0x047F, 0xAA05): /* Plantronics DA45 */ + case USB_ID(0x04D8, 0xFEEA): /* Benchmark DAC1 Pre */ + case USB_ID(0x074D, 0x3553): /* Outlaw RR2150 (Micronas UAC3553B) */ + case USB_ID(0x21B4, 0x0081): /* AudioQuest DragonFly */ +@@ -1205,8 +1218,12 @@ void snd_usb_set_interface_quirk(struct + * "Playback Design" products need a 50ms delay after setting the + * USB interface. + */ +- if (le16_to_cpu(dev->descriptor.idVendor) == 0x23ba) ++ switch (le16_to_cpu(dev->descriptor.idVendor)) { ++ case 0x23ba: /* Playback Design */ ++ case 0x0644: /* TEAC Corp. */ + mdelay(50); ++ break; ++ } + } + + void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe, +@@ -1221,6 +1238,14 @@ void snd_usb_ctl_msg_quirk(struct usb_de + (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) + mdelay(20); + ++ /* ++ * "TEAC Corp." products need a 20ms delay after each ++ * class compliant request ++ */ ++ if ((le16_to_cpu(dev->descriptor.idVendor) == 0x0644) && ++ (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) ++ mdelay(20); ++ + /* Marantz/Denon devices with USB DAC functionality need a delay + * after each class compliant request + */ +@@ -1269,6 +1294,7 @@ u64 snd_usb_interface_dsd_format_quirks( + case USB_ID(0x20b1, 0x3008): /* iFi Audio micro/nano iDSD */ + case USB_ID(0x20b1, 0x2008): /* Matrix Audio X-Sabre */ + case USB_ID(0x20b1, 0x300a): /* Matrix Audio Mini-i Pro */ ++ case USB_ID(0x22d9, 0x0416): /* OPPO HA-1 */ + if (fp->altsetting == 2) + return SNDRV_PCM_FMTBIT_DSD_U32_BE; + break; +@@ -1277,6 +1303,7 @@ u64 snd_usb_interface_dsd_format_quirks( + case USB_ID(0x20b1, 0x2009): /* DIYINHK DSD DXD 384kHz USB to I2S/DSD */ + case USB_ID(0x20b1, 0x2023): /* JLsounds I2SoverUSB */ + case USB_ID(0x20b1, 0x3023): /* Aune X1S 32BIT/384 DSD DAC */ ++ case USB_ID(0x2616, 0x0106): /* PS Audio NuWave DAC */ + if (fp->altsetting == 3) + return SNDRV_PCM_FMTBIT_DSD_U32_BE; + break; +diff -druNp --no-dereference linux-libre-4.4-gnu/sound/usb/stream.c linux-libre-4.4.7-gnu/sound/usb/stream.c +--- linux-libre-4.4-gnu/sound/usb/stream.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/sound/usb/stream.c 2016-04-12 12:09:26.000000000 -0400 +@@ -316,7 +316,9 @@ static struct snd_pcm_chmap_elem *conver + /* + * add this endpoint to the chip instance. + * if a stream with the same endpoint already exists, append to it. +- * if not, create a new pcm stream. ++ * if not, create a new pcm stream. note, fp is added to the substream ++ * fmt_list and will be freed on the chip instance release. do not free ++ * fp or do remove it from the substream fmt_list to avoid double-free. + */ + int snd_usb_add_audio_stream(struct snd_usb_audio *chip, + int stream, +@@ -677,6 +679,7 @@ int snd_usb_parse_audio_interface(struct + * (fp->maxpacksize & 0x7ff); + fp->attributes = parse_uac_endpoint_attributes(chip, alts, protocol, iface_no); + fp->clock = clock; ++ INIT_LIST_HEAD(&fp->list); + + /* some quirks for attributes here */ + +@@ -725,6 +728,7 @@ int snd_usb_parse_audio_interface(struct + dev_dbg(&dev->dev, "%u:%d: add audio endpoint %#x\n", iface_no, altno, fp->endpoint); + err = snd_usb_add_audio_stream(chip, stream, fp); + if (err < 0) { ++ list_del(&fp->list); /* unlink for avoiding double-free */ + kfree(fp->rate_table); + kfree(fp->chmap); + kfree(fp); +diff -druNp --no-dereference linux-libre-4.4-gnu/tools/hv/hv_vss_daemon.c linux-libre-4.4.7-gnu/tools/hv/hv_vss_daemon.c +--- linux-libre-4.4-gnu/tools/hv/hv_vss_daemon.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/tools/hv/hv_vss_daemon.c 2016-04-12 12:09:26.000000000 -0400 +@@ -254,7 +254,7 @@ int main(int argc, char *argv[]) + syslog(LOG_ERR, "Illegal op:%d\n", op); + } + vss_msg->error = error; +- len = write(vss_fd, &error, sizeof(struct hv_vss_msg)); ++ len = write(vss_fd, vss_msg, sizeof(struct hv_vss_msg)); + if (len != sizeof(struct hv_vss_msg)) { + syslog(LOG_ERR, "write failed; error: %d %s", errno, + strerror(errno)); +diff -druNp --no-dereference linux-libre-4.4-gnu/tools/hv/Makefile linux-libre-4.4.7-gnu/tools/hv/Makefile +--- linux-libre-4.4-gnu/tools/hv/Makefile 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/tools/hv/Makefile 2016-04-12 12:09:26.000000000 -0400 +@@ -5,6 +5,8 @@ PTHREAD_LIBS = -lpthread + WARNINGS = -Wall -Wextra + CFLAGS = $(WARNINGS) -g $(PTHREAD_LIBS) $(shell getconf LFS_CFLAGS) + ++CFLAGS += -D__EXPORTED_HEADERS__ -I../../include/uapi -I../../include ++ + all: hv_kvp_daemon hv_vss_daemon hv_fcopy_daemon + %: %.c + $(CC) $(CFLAGS) -o $@ $^ +diff -druNp --no-dereference linux-libre-4.4-gnu/tools/lib/traceevent/event-parse.c linux-libre-4.4.7-gnu/tools/lib/traceevent/event-parse.c +--- linux-libre-4.4-gnu/tools/lib/traceevent/event-parse.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/tools/lib/traceevent/event-parse.c 2016-04-12 12:09:26.000000000 -0400 +@@ -4968,13 +4968,12 @@ static void pretty_print(struct trace_se + sizeof(long) != 8) { + char *p; + +- ls = 2; + /* make %l into %ll */ +- p = strchr(format, 'l'); +- if (p) ++ if (ls == 1 && (p = strchr(format, 'l'))) + memmove(p+1, p, strlen(p)+1); + else if (strcmp(format, "%p") == 0) + strcpy(format, "0x%llx"); ++ ls = 2; + } + switch (ls) { + case -2: +diff -druNp --no-dereference linux-libre-4.4-gnu/tools/perf/util/parse-events.c linux-libre-4.4.7-gnu/tools/perf/util/parse-events.c +--- linux-libre-4.4-gnu/tools/perf/util/parse-events.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/tools/perf/util/parse-events.c 2016-04-12 12:09:26.000000000 -0400 +@@ -399,6 +399,9 @@ static void tracepoint_error(struct pars + { + char help[BUFSIZ]; + ++ if (!e) ++ return; ++ + /* + * We get error directly from syscall errno ( > 0), + * or from encoded pointer's error ( < 0). +@@ -2098,11 +2101,11 @@ char *parse_events_formats_error_string( + + /* valid terms */ + if (additional_terms) { +- if (!asprintf(&str, "valid terms: %s,%s", +- additional_terms, static_terms)) ++ if (asprintf(&str, "valid terms: %s,%s", ++ additional_terms, static_terms) < 0) + goto fail; + } else { +- if (!asprintf(&str, "valid terms: %s", static_terms)) ++ if (asprintf(&str, "valid terms: %s", static_terms) < 0) + goto fail; + } + return str; +diff -druNp --no-dereference linux-libre-4.4-gnu/tools/perf/util/pmu.c linux-libre-4.4.7-gnu/tools/perf/util/pmu.c +--- linux-libre-4.4-gnu/tools/perf/util/pmu.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/tools/perf/util/pmu.c 2016-04-12 12:09:26.000000000 -0400 +@@ -283,13 +283,12 @@ static int pmu_aliases_parse(char *dir, + { + struct dirent *evt_ent; + DIR *event_dir; +- int ret = 0; + + event_dir = opendir(dir); + if (!event_dir) + return -EINVAL; + +- while (!ret && (evt_ent = readdir(event_dir))) { ++ while ((evt_ent = readdir(event_dir))) { + char path[PATH_MAX]; + char *name = evt_ent->d_name; + FILE *file; +@@ -305,17 +304,19 @@ static int pmu_aliases_parse(char *dir, + + snprintf(path, PATH_MAX, "%s/%s", dir, name); + +- ret = -EINVAL; + file = fopen(path, "r"); +- if (!file) +- break; ++ if (!file) { ++ pr_debug("Cannot open %s\n", path); ++ continue; ++ } + +- ret = perf_pmu__new_alias(head, dir, name, file); ++ if (perf_pmu__new_alias(head, dir, name, file) < 0) ++ pr_debug("Cannot set up %s\n", name); + fclose(file); + } + + closedir(event_dir); +- return ret; ++ return 0; + } + + /* +diff -druNp --no-dereference linux-libre-4.4-gnu/tools/perf/util/session.c linux-libre-4.4.7-gnu/tools/perf/util/session.c +--- linux-libre-4.4-gnu/tools/perf/util/session.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/tools/perf/util/session.c 2016-04-12 12:09:26.000000000 -0400 +@@ -972,7 +972,7 @@ static struct machine *machines__find_fo + + machine = machines__find(machines, pid); + if (!machine) +- machine = machines__find(machines, DEFAULT_GUEST_KERNEL_ID); ++ machine = machines__findnew(machines, DEFAULT_GUEST_KERNEL_ID); + return machine; + } + +diff -druNp --no-dereference linux-libre-4.4-gnu/tools/perf/util/setup.py linux-libre-4.4.7-gnu/tools/perf/util/setup.py +--- linux-libre-4.4-gnu/tools/perf/util/setup.py 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/tools/perf/util/setup.py 2016-04-12 12:09:26.000000000 -0400 +@@ -22,6 +22,7 @@ cflags = getenv('CFLAGS', '').split() + # switch off several checks (need to be at the end of cflags list) + cflags += ['-fno-strict-aliasing', '-Wno-write-strings', '-Wno-unused-parameter' ] + ++src_perf = getenv('srctree') + '/tools/perf' + build_lib = getenv('PYTHON_EXTBUILD_LIB') + build_tmp = getenv('PYTHON_EXTBUILD_TMP') + libtraceevent = getenv('LIBTRACEEVENT') +@@ -30,6 +31,9 @@ libapikfs = getenv('LIBAPI') + ext_sources = [f.strip() for f in file('util/python-ext-sources') + if len(f.strip()) > 0 and f[0] != '#'] + ++# use full paths with source files ++ext_sources = map(lambda x: '%s/%s' % (src_perf, x) , ext_sources) ++ + perf = Extension('perf', + sources = ext_sources, + include_dirs = ['util/include'], +diff -druNp --no-dereference linux-libre-4.4-gnu/tools/perf/util/stat.c linux-libre-4.4.7-gnu/tools/perf/util/stat.c +--- linux-libre-4.4-gnu/tools/perf/util/stat.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/tools/perf/util/stat.c 2016-04-12 12:09:26.000000000 -0400 +@@ -310,7 +310,6 @@ int perf_stat_process_counter(struct per + int i, ret; + + aggr->val = aggr->ena = aggr->run = 0; +- init_stats(ps->res_stats); + + if (counter->per_pkg) + zero_per_pkg(counter); +diff -druNp --no-dereference linux-libre-4.4-gnu/tools/testing/selftests/efivarfs/efivarfs.sh linux-libre-4.4.7-gnu/tools/testing/selftests/efivarfs/efivarfs.sh +--- linux-libre-4.4-gnu/tools/testing/selftests/efivarfs/efivarfs.sh 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/tools/testing/selftests/efivarfs/efivarfs.sh 2016-04-12 12:09:26.000000000 -0400 +@@ -88,7 +88,11 @@ test_delete() + exit 1 + fi + +- rm $file ++ rm $file 2>/dev/null ++ if [ $? -ne 0 ]; then ++ chattr -i $file ++ rm $file ++ fi + + if [ -e $file ]; then + echo "$file couldn't be deleted" >&2 +@@ -111,6 +115,7 @@ test_zero_size_delete() + exit 1 + fi + ++ chattr -i $file + printf "$attrs" > $file + + if [ -e $file ]; then +@@ -141,7 +146,11 @@ test_valid_filenames() + echo "$file could not be created" >&2 + ret=1 + else +- rm $file ++ rm $file 2>/dev/null ++ if [ $? -ne 0 ]; then ++ chattr -i $file ++ rm $file ++ fi + fi + done + +@@ -174,7 +183,11 @@ test_invalid_filenames() + + if [ -e $file ]; then + echo "Creating $file should have failed" >&2 +- rm $file ++ rm $file 2>/dev/null ++ if [ $? -ne 0 ]; then ++ chattr -i $file ++ rm $file ++ fi + ret=1 + fi + done +diff -druNp --no-dereference linux-libre-4.4-gnu/tools/testing/selftests/efivarfs/open-unlink.c linux-libre-4.4.7-gnu/tools/testing/selftests/efivarfs/open-unlink.c +--- linux-libre-4.4-gnu/tools/testing/selftests/efivarfs/open-unlink.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/tools/testing/selftests/efivarfs/open-unlink.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1,10 +1,68 @@ ++#include <errno.h> + #include <stdio.h> + #include <stdint.h> + #include <stdlib.h> + #include <unistd.h> ++#include <sys/ioctl.h> + #include <sys/types.h> + #include <sys/stat.h> + #include <fcntl.h> ++#include <linux/fs.h> ++ ++static int set_immutable(const char *path, int immutable) ++{ ++ unsigned int flags; ++ int fd; ++ int rc; ++ int error; ++ ++ fd = open(path, O_RDONLY); ++ if (fd < 0) ++ return fd; ++ ++ rc = ioctl(fd, FS_IOC_GETFLAGS, &flags); ++ if (rc < 0) { ++ error = errno; ++ close(fd); ++ errno = error; ++ return rc; ++ } ++ ++ if (immutable) ++ flags |= FS_IMMUTABLE_FL; ++ else ++ flags &= ~FS_IMMUTABLE_FL; ++ ++ rc = ioctl(fd, FS_IOC_SETFLAGS, &flags); ++ error = errno; ++ close(fd); ++ errno = error; ++ return rc; ++} ++ ++static int get_immutable(const char *path) ++{ ++ unsigned int flags; ++ int fd; ++ int rc; ++ int error; ++ ++ fd = open(path, O_RDONLY); ++ if (fd < 0) ++ return fd; ++ ++ rc = ioctl(fd, FS_IOC_GETFLAGS, &flags); ++ if (rc < 0) { ++ error = errno; ++ close(fd); ++ errno = error; ++ return rc; ++ } ++ close(fd); ++ if (flags & FS_IMMUTABLE_FL) ++ return 1; ++ return 0; ++} + + int main(int argc, char **argv) + { +@@ -27,7 +85,7 @@ int main(int argc, char **argv) + buf[4] = 0; + + /* create a test variable */ +- fd = open(path, O_WRONLY | O_CREAT); ++ fd = open(path, O_WRONLY | O_CREAT, 0600); + if (fd < 0) { + perror("open(O_WRONLY)"); + return EXIT_FAILURE; +@@ -41,6 +99,18 @@ int main(int argc, char **argv) + + close(fd); + ++ rc = get_immutable(path); ++ if (rc < 0) { ++ perror("ioctl(FS_IOC_GETFLAGS)"); ++ return EXIT_FAILURE; ++ } else if (rc) { ++ rc = set_immutable(path, 0); ++ if (rc < 0) { ++ perror("ioctl(FS_IOC_SETFLAGS)"); ++ return EXIT_FAILURE; ++ } ++ } ++ + fd = open(path, O_RDONLY); + if (fd < 0) { + perror("open"); +diff -druNp --no-dereference linux-libre-4.4-gnu/virt/kvm/arm/arch_timer.c linux-libre-4.4.7-gnu/virt/kvm/arm/arch_timer.c +--- linux-libre-4.4-gnu/virt/kvm/arm/arch_timer.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/virt/kvm/arm/arch_timer.c 2016-04-12 12:09:26.000000000 -0400 +@@ -143,7 +143,7 @@ static void kvm_timer_update_irq(struct + * Check if there was a change in the timer state (should we raise or lower + * the line level to the GIC). + */ +-static void kvm_timer_update_state(struct kvm_vcpu *vcpu) ++static int kvm_timer_update_state(struct kvm_vcpu *vcpu) + { + struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu; + +@@ -154,10 +154,12 @@ static void kvm_timer_update_state(struc + * until we call this function from kvm_timer_flush_hwstate. + */ + if (!vgic_initialized(vcpu->kvm)) +- return; ++ return -ENODEV; + + if (kvm_timer_should_fire(vcpu) != timer->irq.level) + kvm_timer_update_irq(vcpu, !timer->irq.level); ++ ++ return 0; + } + + /* +@@ -218,7 +220,8 @@ void kvm_timer_flush_hwstate(struct kvm_ + bool phys_active; + int ret; + +- kvm_timer_update_state(vcpu); ++ if (kvm_timer_update_state(vcpu)) ++ return; + + /* + * If we enter the guest with the virtual input level to the VGIC +diff -druNp --no-dereference linux-libre-4.4-gnu/virt/kvm/arm/vgic.c linux-libre-4.4.7-gnu/virt/kvm/arm/vgic.c +--- linux-libre-4.4-gnu/virt/kvm/arm/vgic.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/virt/kvm/arm/vgic.c 2016-04-12 12:09:26.000000000 -0400 +@@ -1875,8 +1875,8 @@ void kvm_vgic_vcpu_destroy(struct kvm_vc + static int vgic_vcpu_init_maps(struct kvm_vcpu *vcpu, int nr_irqs) + { + struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu; +- +- int sz = (nr_irqs - VGIC_NR_PRIVATE_IRQS) / 8; ++ int nr_longs = BITS_TO_LONGS(nr_irqs - VGIC_NR_PRIVATE_IRQS); ++ int sz = nr_longs * sizeof(unsigned long); + vgic_cpu->pending_shared = kzalloc(sz, GFP_KERNEL); + vgic_cpu->active_shared = kzalloc(sz, GFP_KERNEL); + vgic_cpu->pend_act_shared = kzalloc(sz, GFP_KERNEL); +diff -druNp --no-dereference linux-libre-4.4-gnu/virt/kvm/async_pf.c linux-libre-4.4.7-gnu/virt/kvm/async_pf.c +--- linux-libre-4.4-gnu/virt/kvm/async_pf.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/virt/kvm/async_pf.c 2016-04-12 12:09:26.000000000 -0400 +@@ -173,7 +173,7 @@ int kvm_setup_async_pf(struct kvm_vcpu * + * do alloc nowait since if we are going to sleep anyway we + * may as well sleep faulting in page + */ +- work = kmem_cache_zalloc(async_pf_cache, GFP_NOWAIT); ++ work = kmem_cache_zalloc(async_pf_cache, GFP_NOWAIT | __GFP_NOWARN); + if (!work) + return 0; + +diff -druNp --no-dereference linux-libre-4.4-gnu/virt/kvm/kvm_main.c linux-libre-4.4.7-gnu/virt/kvm/kvm_main.c +--- linux-libre-4.4-gnu/virt/kvm/kvm_main.c 2016-01-10 18:01:32.000000000 -0500 ++++ linux-libre-4.4.7-gnu/virt/kvm/kvm_main.c 2016-04-12 12:09:26.000000000 -0400 +@@ -547,6 +547,16 @@ static struct kvm *kvm_create_vm(unsigne + if (!kvm) + return ERR_PTR(-ENOMEM); + ++ spin_lock_init(&kvm->mmu_lock); ++ atomic_inc(¤t->mm->mm_count); ++ kvm->mm = current->mm; ++ kvm_eventfd_init(kvm); ++ mutex_init(&kvm->lock); ++ mutex_init(&kvm->irq_lock); ++ mutex_init(&kvm->slots_lock); ++ atomic_set(&kvm->users_count, 1); ++ INIT_LIST_HEAD(&kvm->devices); ++ + r = kvm_arch_init_vm(kvm, type); + if (r) + goto out_err_no_disable; +@@ -579,16 +589,6 @@ static struct kvm *kvm_create_vm(unsigne + goto out_err; + } + +- spin_lock_init(&kvm->mmu_lock); +- kvm->mm = current->mm; +- atomic_inc(&kvm->mm->mm_count); +- kvm_eventfd_init(kvm); +- mutex_init(&kvm->lock); +- mutex_init(&kvm->irq_lock); +- mutex_init(&kvm->slots_lock); +- atomic_set(&kvm->users_count, 1); +- INIT_LIST_HEAD(&kvm->devices); +- + r = kvm_init_mmu_notifier(kvm); + if (r) + goto out_err; +@@ -613,6 +613,7 @@ out_err_no_disable: + for (i = 0; i < KVM_ADDRESS_SPACE_NUM; i++) + kvm_free_memslots(kvm, kvm->memslots[i]); + kvm_arch_free_vm(kvm); ++ mmdrop(current->mm); + return ERR_PTR(r); + } + +@@ -1961,6 +1962,9 @@ static void grow_halt_poll_ns(struct kvm + else + val *= halt_poll_ns_grow; + ++ if (val > halt_poll_ns) ++ val = halt_poll_ns; ++ + vcpu->halt_poll_ns = val; + trace_kvm_halt_poll_ns_grow(vcpu->vcpu_id, val, old); + } |