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virtio: fix BAD_RING, START_US and END_USE macros 

Impact: cleanup

fix BAD_RING, START_US and END_USE macros

When these macros aren't called with a variable named vq as first
argument, this would result in a build failure.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Roel Kluin 2009-01-22 16:42:57 +01:00 committed by Rusty Russell
parent 0d34fb8e93
commit 3a35ce7dce
1 changed files with 8 additions and 8 deletions
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16
drivers/virtio/virtio_ring.c
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@ -23,15 +23,15 @@
#ifdef DEBUG
/* For development, we want to crash whenever the ring is screwed. */
#define BAD_RING(vq, fmt...) \
do { dev_err(&vq->vq.vdev->dev, fmt); BUG(); } while(0)
#define START_USE(vq) \
do { if ((vq)->in_use) panic("in_use = %i\n", (vq)->in_use); (vq)->in_use = __LINE__; mb(); } while(0)
#define END_USE(vq) \
do { BUG_ON(!(vq)->in_use); (vq)->in_use = 0; mb(); } while(0)
#define BAD_RING(_vq, fmt...) \
do { dev_err(&_vq->vq.vdev->dev, fmt); BUG(); } while(0)
#define START_USE(_vq) \
do { if ((_vq)->in_use) panic("in_use = %i\n", (_vq)->in_use); (_vq)->in_use = __LINE__; mb(); } while(0)
#define END_USE(_vq) \
do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; mb(); } while(0)
#else
#define BAD_RING(vq, fmt...) \
do { dev_err(&vq->vq.vdev->dev, fmt); (vq)->broken = true; } while(0)
#define BAD_RING(_vq, fmt...) \
do { dev_err(&_vq->vq.vdev->dev, fmt); (_vq)->broken = true; } while(0)
#define START_USE(vq)
#define END_USE(vq)
#endif