tcp: do not mangle skb->cb[] in tcp_make_synack()

[sfrench/cifs-2.6.git] / net / ipv4 / tcp_output.c

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 823003eef3a21a5cc5c27e0be9f46159afa060df..478909f4694d00076c96b7a3be1eda62b6be8bef 100644 (file)
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -3180,13 +3180,8 @@ struct sk_buff *tcp_make_synack(const struct sock *sk, struct dst_entry *dst,
        th->source = htons(ireq->ir_num);
        th->dest = ireq->ir_rmt_port;
        skb->mark = ireq->ir_mark;
-       /* Setting of flags are superfluous here for callers (and ECE is
-        * not even correctly set)
-        */
-       tcp_init_nondata_skb(skb, tcp_rsk(req)->snt_isn,
-                            TCPHDR_SYN | TCPHDR_ACK);
-
-       th->seq = htonl(TCP_SKB_CB(skb)->seq);
+       skb->ip_summed = CHECKSUM_PARTIAL;
+       th->seq = htonl(tcp_rsk(req)->snt_isn);
        /* XXX data is queued and acked as is. No buffer/window check */
        th->ack_seq = htonl(tcp_rsk(req)->rcv_nxt);