Messages in this thread Patch in this message | | | From | Jason Wang <> | Subject | [PATCH net 3/4] virtio-net: reset num_buf to 1 after linearizing packet | Date | Mon, 21 May 2018 16:35:05 +0800 |
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If we successfully linearize the packets, num_buf were set to zero which was wrong since we now have only 1 buffer to be used for e.g in the error path of receive_mergeable(). Zero num_buf will lead the code try to pop the buffers of next packet and drop it. Fixing this by set num_buf to 1 if we successfully linearize the packet.
Fixes: 4941d472bf95 ("virtio-net: do not reset during XDP set") Signed-off-by: Jason Wang <jasowang@redhat.com> --- drivers/net/virtio_net.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 6260d65..165a922 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -722,6 +722,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev, &len); if (!xdp_page) goto err_xdp; + num_buf = 1; offset = VIRTIO_XDP_HEADROOM; } else { xdp_page = page; -- 2.7.4
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