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| author | Jason Wang <jasowang@redhat.com> | 2017-07-19 16:54:45 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-24 13:37:00 -0700 |
| commit | 87646a348ebcb1415a479be31f1c41f276e057e6 (patch) | |
| tree | f1096c513326ae90307e9357886be589b4e4a519 /drivers/virtio/virtio_ring.c | |
| parent | 7a68ada6ec7d88c68057d3a4c2a517eb94289976 (diff) | |
| download | lwn-87646a348ebcb1415a479be31f1c41f276e057e6.tar.gz lwn-87646a348ebcb1415a479be31f1c41f276e057e6.zip | |
virtio_ring: allow to store zero as the ctx
Allow zero to be store as a ctx, with this we could store e.g zero
value which could be meaningful for the case of storing headroom
through ctx.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/virtio/virtio_ring.c')
| -rw-r--r-- | drivers/virtio/virtio_ring.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 5e1b548828e6..9aaa177e8209 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -391,7 +391,7 @@ static inline int virtqueue_add(struct virtqueue *_vq, vq->desc_state[head].data = data; if (indirect) vq->desc_state[head].indir_desc = desc; - if (ctx) + else vq->desc_state[head].indir_desc = ctx; /* Put entry in available array (but don't update avail->idx until they |