The condition to test is unlikely() to be true. Add the hint.
Signed-off-by: Igor Stoppa <igor.stoppa at huawei.com>
Cc: "Michael S. Tsirkin" <mst at redhat.com>
Cc: Jason Wang <jasowang at redhat.com>
Cc: Virtualization at lists.linux-foundation.org
Cc: linux-kernel at vger.kernel.org
---
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 fb22bccfbc8a..2b5e417ea2f0 100644
--- a/tools/virtio/linux/kernel.h
+++ b/tools/virtio/linux/kernel.h
@@ -123,7 +123,7 @@ 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); \
--
2.17.1
