[PATCH] m68knommu: make enable_irq() macro statement

Change enable_irq() macro to be a statement, not expression.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/asm-m68knommu/irq.h b/include/asm-m68knommu/irq.h
index c524751..5355727 100644
--- a/include/asm-m68knommu/irq.h
+++ b/include/asm-m68knommu/irq.h
@@ -83,7 +83,7 @@
 /*
  * Some drivers want these entry points
  */
-#define enable_irq(x)	0
+#define enable_irq(x)	do { } while (0)
 #define disable_irq(x)	do { } while (0)
 #define disable_irq_nosync(x)	disable_irq(x)