[PATCH] IRQ: Use SA_PERCPU_IRQ, not IRQ_PER_CPU, for irqaction.flags

IRQ_PER_CPU is a bit in the struct irq_desc "status" field, not in the
struct irqaction "flags", so the previous code checked the wrong bit.

SA_PERCPU_IRQ is only used by drivers/char/mmtimer.c for SGI ia64 boxes.
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

kernel/irq/manage.c

@@ -236,7 +236,8 @@ int setup_irq(unsigned int irq, struct irqaction *new)
 
 #if defined(CONFIG_IRQ_PER_CPU) && defined(SA_PERCPU_IRQ)
 		/* All handlers must agree on per-cpuness */
-		if ((old->flags & IRQ_PER_CPU) != (new->flags & IRQ_PER_CPU))
+		if ((old->flags & SA_PERCPU_IRQ) !=
+		    (new->flags & SA_PERCPU_IRQ))
 			goto mismatch;
 #endif