bnx2: Eliminate TSO header modifications.

This is now possible with updated firmware.

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 21711c7..f147204 100644 (file)
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -6008,7 +6008,7 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)
        }
 #endif
        if ((mss = skb_shinfo(skb)->gso_size)) {
-               u32 tcp_opt_len, ip_tcp_len;
+               u32 tcp_opt_len;
                struct iphdr *iph;
 
                vlan_tag_flags |= TX_BD_FLAGS_SW_LSO;
@@ -6032,21 +6032,7 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)
                                mss |= (tcp_off & 0xc) << TX_BD_TCP6_OFF2_SHL;
                        }
                } else {
-                       if (skb_header_cloned(skb) &&
-                           pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
-                               dev_kfree_skb(skb);
-                               return NETDEV_TX_OK;
-                       }
-
-                       ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
-
                        iph = ip_hdr(skb);
-                       iph->check = 0;
-                       iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
-                       tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
-                                                                iph->daddr, 0,
-                                                                IPPROTO_TCP,
-                                                                0);
                        if (tcp_opt_len || (iph->ihl > 5)) {
                                vlan_tag_flags |= ((iph->ihl - 5) +
                                                   (tcp_opt_len >> 2)) << 8;