net: vlan: goto another_round instead of calling __netif_receive_skb

Now, when vlan tag on untagged in non-accelerated path is stripped from
skb, headers are reset right away. Benefit from that and avoid calling
__netif_receive_skb recursivelly and just use another_round.
Signed-off-by: NJiri Pirko <jpirko@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/core/dev.c

@@ -3236,10 +3236,9 @@ static int __netif_receive_skb(struct sk_buff *skb)
 			ret = deliver_skb(skb, pt_prev, orig_dev);
 			pt_prev = NULL;
 		}
-		if (vlan_do_receive(&skb)) {
-			ret = __netif_receive_skb(skb);
-			goto out;
-		} else if (unlikely(!skb))
+		if (vlan_do_receive(&skb))
+			goto another_round;
+		else if (unlikely(!skb))
 			goto out;
 	}