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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>
This commit is contained in:
Igor Stoppa 2018-09-07 20:48:02 +03:00 committed by Michael S. Tsirkin
parent cd6c84d8f0
commit 3d840e0636
1 changed files with 1 additions and 1 deletions
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tools/virtio/linux/kernel.h
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@ -127,7 +127,7 @@ static inline void free_page(unsigned long addr)
#define dev_err(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__) #define dev_err(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
#define dev_warn(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) ({ \ #define min(x, y) ({ \
typeof(x) _min1 = (x); \ typeof(x) _min1 = (x); \