netdev - [PATCH 2/2 net-next] ixgbe: remove xmit length check

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Date:	Mon, 18 Jun 2012 11:55:58 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	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>
Cc:	"David S. Miller" <davem@...emloft.net>,
	e1000-devel@...ts.sourceforge.net, netdev@...r.kernel.org
Subject: [PATCH 2/2 net-next] ixgbe: remove xmit length check

The check here is bogus. Since len is unsigned, it can never
be negative. And it would be a bug in network stack to ever
send a zero length packet to device.

Signed-off-by: Stephen Hemminger <shemminger@...tta.com>


--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c	2012-06-18 10:53:13.742310994 -0700
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c	2012-06-18 10:53:15.962279249 -0700
@@ -6380,11 +6380,6 @@ static netdev_tx_t ixgbe_xmit_frame(stru
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
 	struct ixgbe_ring *tx_ring;
 
-	if (skb->len <= 0) {
-		dev_kfree_skb_any(skb);
-		return NETDEV_TX_OK;
-	}
-
 	/*
 	 * The minimum packet size for olinfo paylen is 17 so pad the skb
 	 * in order to meet this minimum size requirement.
--
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