[patch 24/69] BNX2: Fix TSO problem with small MSS.

[Chris Wright]

-stable review patch.  If anyone has any objections, please let us know.
---------------------

From:  <mchan@xxxxxxxxxxxx>

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@xxxxxxxxxxxxxxxxxxx> for
reporting the problem.

Signed-off-by: Michael Chan <mchan@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Chris Wright <chrisw@xxxxxxxxxxxx>

---
 drivers/net/bnx2.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- linux-2.6.21.1.orig/drivers/net/bnx2.c
+++ linux-2.6.21.1/drivers/net/bnx2.c
@@ -4510,8 +4510,7 @@ bnx2_start_xmit(struct sk_buff *skb, str
 		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;
 
 		if (skb_header_cloned(skb) &&

-- 
-
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