------------------

From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

[ Upstream commit b9fcc1867cc7921bb8441be327ed58461ed12255 ]

On !RT the header file get_irq_regs() gets pulled in via other header files. On
RT it does not and the build fails:

    drivers/hv/vmbus_drv.c:975 implicit declaration of function '˜get_irq_regs'™ [-Werror=implicit-function-declaration]
    drivers/hv/hv.c:115 implicit declaration of function '˜get_irq_regs'™ [-Werror=implicit-function-declaration]

Add the header file for get_irq_regs() in a common header so it used by
vmbus_drv.c by hv.c for their get_irq_regs() usage.

Reported-by: Bernhard Landauer <oberon@manjaro.org>
Reported-by: Ralf Ramsauer <ralf.ramsauer@oth-regensburg.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 drivers/hv/hyperv_vmbus.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index 49569f8fe038..a3608cd52805 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -30,6 +30,7 @@
 #include <linux/atomic.h>
 #include <linux/hyperv.h>
 #include <linux/interrupt.h>
+#include <linux/irq.h>
 
 /*
  * Timeout for services such as KVP and fcopy.