[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 605347f..88b33c6 100644 (file)
--- 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;