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Message-ID: <20120618105816.5fdd0b90@nehalam.linuxnetplumber.net> Date: Mon, 18 Jun 2012 10:58:16 -0700 From: Stephen Hemminger <shemminger@...tta.com> To: Jeff Kirsher <jeffrey.t.kirsher@...el.com>, Bruce Allan <bruce.w.allan@...el.com>, Carolyn Wyborny <carolyn.wyborny@...el.com>, Don Skidmore <donald.c.skidmore@...el.com>, Greg Rose <gregory.v.rose@...el.com>, Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>, Alex Duyck <alexander.h.duyck@...el.com>, "David S. Miller" <davem@...emloft.net> Cc: e1000-devel@...ts.sourceforge.net, netdev@...r.kernel.org Subject: [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 <shemminger@...tta.com> --- 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); -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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