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| author | Igor Stoppa <igor.stoppa@gmail.com> | 2018-09-07 20:48:02 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2019-05-27 11:08:22 -0400 |
| commit | 3d840e0636be64502f1d3da2e077dab390c04091 (patch) | |
| tree | f22f174f2a645f496e2ab971453ddc750b10e5a4 /tools/virtio | |
| parent | cd6c84d8f0cdc911df435bb075ba22ce3c605b07 (diff) | |
| download | lwn-3d840e0636be64502f1d3da2e077dab390c04091.tar.gz lwn-3d840e0636be64502f1d3da2e077dab390c04091.zip | |
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>
Diffstat (limited to 'tools/virtio')
| -rw-r--r-- | tools/virtio/linux/kernel.h | 2 |
1 files changed, 1 insertions, 1 deletions
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); \ |