From 3d840e0636be64502f1d3da2e077dab390c04091 Mon Sep 17 00:00:00 2001 From: Igor Stoppa Date: Fri, 7 Sep 2018 20:48:02 +0300 Subject: [PATCH] virtio: add unlikely() to WARN_ON_ONCE() The condition to test is unlikely() to be true. Add the hint. Signed-off-by: Igor Stoppa Cc: "Michael S. Tsirkin" Cc: Jason Wang Cc: Virtualization@lists.linux-foundation.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Michael S. Tsirkin --- tools/virtio/linux/kernel.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/virtio/linux/kernel.h b/tools/virtio/linux/kernel.h index 7ef45a4a3cba..6683b4a70b05 100644 --- a/tools/virtio/linux/kernel.h +++ b/tools/virtio/linux/kernel.h @@ -127,7 +127,7 @@ static inline void free_page(unsigned long addr) #define dev_err(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__) #define dev_warn(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__) -#define WARN_ON_ONCE(cond) ((cond) ? fprintf (stderr, "WARNING\n") : 0) +#define WARN_ON_ONCE(cond) (unlikely(cond) ? fprintf (stderr, "WARNING\n") : 0) #define min(x, y) ({ \ typeof(x) _min1 = (x); \