Re: [PATCH 1/2 net-next] ixgbe: use skb_padto

The code to pad packets here is the same effective code as
the existing inline function skb_padto(). There is a minor
performance gain since skb_padto() also uses unlikely().

Signed-off-by: Stephen Hemminger <redacted>

--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c	2012-06-18 10:53:09.130376800 -0700
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c	2012-06-18 10:55:13.104540844 -0700

@@ -6389,11 +6389,8 @@ static netdev_tx_t ixgbe_xmit_frame(stru
 	 * The minimum packet size for olinfo paylen is 17 so pad the skb
 	 * in order to meet this minimum size requirement.
 	 */
-	if (skb->len < 17) {
-		if (skb_padto(skb, 17))
-			return NETDEV_TX_OK;
-		skb->len = 17;
-	}
+	if (skb_padto(skb, 17))
+		return NETDEV_TX_OK;
 
 	tx_ring = adapter->tx_ring[skb->queue_mapping];
 	return ixgbe_xmit_frame_ring(skb, adapter, tx_ring);