ifb: use netif_receive_skb() instead of netif_rx()

In ri_tasklet(), we run from softirq, so can directly handle packet
through netif_receive_skb() instead of netif_rx().
There is no risk of recursion.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Acked-by: NChangli Gao <xiaosuo@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ifb.c

@@ -96,7 +96,7 @@ static void ri_tasklet(unsigned long dev)
 			dev_queue_xmit(skb);
 		} else if (from & AT_INGRESS) {
 			skb_pull(skb, skb->dev->hard_header_len);
-			netif_rx(skb);
+			netif_receive_skb(skb);
 		} else
 			BUG();
 	}