cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: arm
From: Rusty Russell <rusty@rustcorp.com.au>

In fact, all cpumask ops will only be valid (in general) for bit
numbers < nr_cpu_ids.  So use that instead of NR_CPUS in various
places.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
---
 arch/arm/kernel/irq.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-2.6.orig/arch/arm/kernel/irq.c
+++ linux-2.6/arch/arm/kernel/irq.c
@@ -193,7 +193,7 @@ void migrate_irqs(void)
 		if (desc->cpu == cpu) {
 			unsigned int newcpu = any_online_cpu(desc->affinity);
 
-			if (newcpu == NR_CPUS) {
+			if (newcpu >= nr_cpu_ids) {
 				if (printk_ratelimit())
 					printk(KERN_INFO "IRQ%u no longer affine to CPU%u\n",
 					       i, cpu);