virtio-net: correctly set xdp_xmit for mergeable buffer

We should set xdp_xmit only when xdp_do_redirect() succeed.

Cc: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index f6c1f135a02414fcc5ca424f08c2ea49a5989cfd..dd14a45479321a0f721704d8605e4fcd6ca90e51 100644 (file)
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -721,7 +721,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
                        goto xdp_xmit;
                case XDP_REDIRECT:
                        err = xdp_do_redirect(dev, &xdp, xdp_prog);
-                       if (err)
+                       if (!err)
                                *xdp_xmit = true;
                        rcu_read_unlock();
                        goto xdp_xmit;