Commit 3d840e06 authored Sep 07, 2018 by Igor Stoppa Committed by Michael S. Tsirkin May 27, 2019

virtio: add unlikely() to WARN_ON_ONCE()

The condition to test is unlikely() to be true. Add the hint.

Signed-off-by: Igor Stoppa <igor.stoppa@huawei.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Virtualization@lists.linux-foundation.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

parent cd6c84d8

tools/virtio/linux/kernel.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -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); \

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