net:dl2k: Replace dev_kfree_skb_irq by dev_consume_skb_irq

dev_consume_skb_irq() should be called when skb xmit
done.It makes drop profiles more friendly.
Signed-off-by: NHuang Zijiang <huang.zijiang@zte.com.cn>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/dlink/dl2k.c

@@ -843,7 +843,7 @@ rio_free_tx (struct net_device *dev, int irq)
 				  desc_to_dma(&np->tx_ring[entry]),
 				  skb->len, PCI_DMA_TODEVICE);
 		if (irq)
-			dev_kfree_skb_irq(skb);
+			dev_consume_skb_irq(skb);
 		else
 			dev_kfree_skb(skb);