[PATCH] genirq: cleanup: remove irq_descp()

Cleanup: remove irq_descp() - explicit use of irq_desc[] is shorter and more
readable.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/kernel/irq/migration.c b/kernel/irq/migration.c
index d978c87..b4a4354 100644
--- a/kernel/irq/migration.c
+++ b/kernel/irq/migration.c
@@ -15,7 +15,7 @@
 void move_native_irq(int irq)
 {
 	cpumask_t tmp;
-	irq_desc_t *desc = irq_descp(irq);
+	irq_desc_t *desc = irq_desc + irq;
 
 	if (likely(!desc->move_irq))
 		return;