[PATCH] Allow multiple cpus in irq affinity call

The generic irq affinity code limits us to a single cpu target regardless
of what the architecture supports.  If required this should be done in the
architecture specific ->set_affinity call.

With this patch ppc64 is able to select all cpus affinity again.
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

kernel/irq/proc.c

@@ -56,8 +56,7 @@ static int irq_affinity_write_proc(struct file *file, const char __user *buffer,
 		return -EINVAL;
 
 	irq_affinity[irq] = new_value;
-	irq_desc[irq].handler->set_affinity(irq,
-					cpumask_of_cpu(first_cpu(new_value)));
+	irq_desc[irq].handler->set_affinity(irq, new_value);
 
 	return full_count;
 }