From: Michael Chan <mchan@broadcom.com>
Date: Fri, 4 May 2007 00:23:35 +0000 (-0700)
Subject: [BNX2]: Fix TSO problem with small MSS.
X-Git-Tag: v2.6.22-rc1~1036^2~12
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=fde82055c1d0e64ff660d83c705db0e1abc9d12e;p=linux-2.6-omap-h63xx.git

[BNX2]: Fix TSO problem with small MSS.

Remove the check for skb->len greater than MTU when doing TSO.  When
the destination has a smaller MSS than the source, a TSO packet may
be smaller than the MTU at the source and we still need to process it
as a TSO packet.

Thanks to Brian Ristuccia <bristuccia@starentnetworks.com> for
reporting the problem.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 605347f7c40..88b33c6ddda 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -4836,8 +4836,7 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		vlan_tag_flags |=
 			(TX_BD_FLAGS_VLAN_TAG | (vlan_tx_tag_get(skb) << 16));
 	}
-	if ((mss = skb_shinfo(skb)->gso_size) &&
-		(skb->len > (bp->dev->mtu + ETH_HLEN))) {
+	if ((mss = skb_shinfo(skb)->gso_size)) {
 		u32 tcp_opt_len, ip_tcp_len;
 		struct iphdr *iph;