X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=net%2Fipv4%2Ftcp_ipv4.c;fp=net%2Fipv4%2Ftcp_ipv4.c;h=0334bbe109a1f6c9dd4ea8528ec0608f67be8ad5;hb=4e76c8a9fa413ccc09d3f7f664183dcce3555d57;hp=075216a98d2af1f6e999ec58f842093f225994fc;hpb=1db395853d4f30d6120458bd279ede1f882a8525;p=linux-2.6.git

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 075216a98..0334bbe10 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -496,6 +496,24 @@ void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb)
 	}
 }
 
+int tcp_v4_gso_send_check(struct sk_buff *skb)
+{
+	struct iphdr *iph;
+	struct tcphdr *th;
+
+	if (!pskb_may_pull(skb, sizeof(*th)))
+		return -EINVAL;
+
+	iph = skb->nh.iph;
+	th = skb->h.th;
+
+	th->check = 0;
+	th->check = ~tcp_v4_check(th, skb->len, iph->saddr, iph->daddr, 0);
+	skb->csum = offsetof(struct tcphdr, check);
+	skb->ip_summed = CHECKSUM_HW;
+	return 0;
+}
+
 /*
  *	This routine will send an RST to the other tcp.
  *