[PATCH] nvidiafb: Fix empty macro

Use do {} while(0) for empty reverse_order() macro.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/video/nvidia/nv_local.h b/drivers/video/nvidia/nv_local.h
index afee284..4243d7f 100644
--- a/drivers/video/nvidia/nv_local.h
+++ b/drivers/video/nvidia/nv_local.h
@@ -105,7 +105,7 @@
 	*a = byte_rev[*a];      \
 } while(0)
 #else
-#define reverse_order(l)
+#define reverse_order(l) do { } while(0)
 #endif                          /* __LITTLE_ENDIAN */
 
 #endif				/* __NV_LOCAL_H__ */