From: Jason Wang <jasowang@redhat.com>
To: mst@redhat.com, jasowang@redhat.com,
virtualization@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH net-next 1/5] virtio_ring: allow to store zero as the ctx
Date: Mon, 17 Jul 2017 20:43:57 +0800 [thread overview]
Message-ID: <1500295441-19339-2-git-send-email-jasowang@redhat.com> (raw)
In-Reply-To: <1500295441-19339-1-git-send-email-jasowang@redhat.com>
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>
---
drivers/virtio/virtio_ring.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 5e1b548..9aaa177 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
--
2.7.4
next prev parent reply other threads:[~2017-07-17 12:44 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-17 12:43 [PATCH net-next 0/5] refine virtio-net XDP Jason Wang
2017-07-17 12:43 ` Jason Wang [this message]
2017-07-17 12:43 ` [PATCH net-next 2/5] virtio-net: pack headroom into ctx for mergeable buffer Jason Wang
2017-07-18 18:59 ` Michael S. Tsirkin
2017-07-19 2:29 ` Jason Wang
2017-07-17 12:43 ` [PATCH net-next 3/5] virtio-net: switch to use new ctx API for small buffer Jason Wang
2017-07-18 19:20 ` Michael S. Tsirkin
2017-07-19 2:30 ` Jason Wang
2017-07-17 12:44 ` [PATCH net-next 4/5] virtio-net: do not reset during XDP set Jason Wang
2017-07-18 19:49 ` Michael S. Tsirkin
2017-07-19 2:35 ` Jason Wang
2017-07-17 12:44 ` [PATCH net-next 5/5] virtio-net: switch off offloads on demand if possible on " Jason Wang
2017-07-18 20:07 ` Michael S. Tsirkin
2017-07-19 2:39 ` Jason Wang
2017-07-24 21:36 ` Michael S. Tsirkin
2017-07-18 18:24 ` [PATCH net-next 0/5] refine virtio-net XDP David Miller
2017-07-18 18:47 ` Michael S. Tsirkin
2017-07-18 20:13 ` Michael S. Tsirkin
2017-07-19 2:40 ` Jason Wang
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