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authorJason Wang <jasowang@redhat.com>2018-05-22 06:44:28 +0300
committerDavid S. Miller <davem@davemloft.net>2018-05-23 20:36:19 +0300
commit6890418bbb780f0ee9cf124055afa79777f1b4f1 (patch)
tree35a9b4af9c1ed50c2aacc89e0d00a66f9e911cdd /drivers/net/virtio_net.c
parent419fc888e5396968620bb8f85beb7ab55293f04f (diff)
downloadlinux-6890418bbb780f0ee9cf124055afa79777f1b4f1.tar.xz
virtio-net: correctly redirect linearized packet
After a linearized packet was redirected by XDP, we should not go for the err path which will try to pop buffers for the next packet and increase the drop counter. Fixing this by just drop the page refcnt for the original page. Fixes: 186b3c998c50 ("virtio-net: support XDP_REDIRECT") Reported-by: David Ahern <dsahern@gmail.com> Tested-by: David Ahern <dsahern@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/net/virtio_net.c')
-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 770422e953f7..c15d240f643f 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -787,7 +787,7 @@ 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;
default: