Subject: genirq: Fix 32bit random changes fallout
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 31 Oct 2012 17:06:19 +0100

On 32bit sytems pointers are surprisingly 32bit wide. So gcc complains
correctly about a cast to a different size. Use an cast to unsigned
long instead which handles this correctly for bioth 32 and 64 bit.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable-rt@vger.kernel.org
---
 kernel/irq/manage.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-stable/kernel/irq/manage.c
===================================================================
--- linux-stable.orig/kernel/irq/manage.c
+++ linux-stable/kernel/irq/manage.c
@@ -855,7 +855,7 @@ static int irq_thread(void *data)
 #ifdef CONFIG_PREEMPT_RT_FULL
 		migrate_disable();
 		add_interrupt_randomness(action->irq, 0,
-					 desc->random_ip ^ (u64) action);
+				 desc->random_ip ^ (unsigned long) action);
 		migrate_enable();
 #endif
 		wake_threads_waitq(desc);