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authorJason Wang <jasowang@redhat.com>2018-05-22 11:44:29 +0800
committerDavid S. Miller <davem@davemloft.net>2018-05-23 13:36:19 -0400
commit5d458a13dd59d04b4d6658a6d5b94d42732b15ae (patch)
tree27fb76cef17f55beb1c8c498f63849da396e5663 /drivers
parent6890418bbb780f0ee9cf124055afa79777f1b4f1 (diff)
downloadlinux-5d458a13dd59d04b4d6658a6d5b94d42732b15ae.tar.bz2
virtio-net: correctly transmit XDP buff after linearizing
We should not go for the error path after successfully transmitting a XDP buffer after linearizing. Since the error path may try to pop and drop next packet and increase the drop counters. Fixing this by simply drop the refcnt of original page and go for xmit path. Fixes: 72979a6c3590 ("virtio_net: xdp, add slowpath case for non contiguous buffers") Cc: John Fastabend <john.fastabend@gmail.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/virtio_net.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index c15d240f643f..6260d6549ee8 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -775,7 +775,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
}
*xdp_xmit = true;
if (unlikely(xdp_page != page))
- goto err_xdp;
+ put_page(page);
rcu_read_unlock();
goto xdp_xmit;
case XDP_REDIRECT: