[NETFILTER]: ipt_helper.c needs linux/interrupt.h

[powerpc.git] / kernel / irq / proc.c

diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index f26e534..8a64a48 100644 (file)
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -68,7 +68,9 @@ static int irq_affinity_write_proc(struct file *file, const char __user *buffer,
         */
        cpus_and(tmp, new_value, cpu_online_map);
        if (cpus_empty(tmp))
-               return -EINVAL;
+               /* Special case for empty set - allow the architecture
+                  code to set default SMP affinity. */
+               return select_smp_affinity(irq) ? -EINVAL : full_count;
 
        proc_set_irq_affinity(irq, new_value);