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-rw-r--r--net/ipv4/tcp_output.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 18a3302480cb..b4ed957f201a 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -668,7 +668,6 @@ static unsigned tcp_synack_options(struct sock *sk,
668 u8 cookie_plus = (xvp != NULL && !xvp->cookie_out_never) ? 668 u8 cookie_plus = (xvp != NULL && !xvp->cookie_out_never) ?
669 xvp->cookie_plus : 669 xvp->cookie_plus :
670 0; 670 0;
671 bool doing_ts = ireq->tstamp_ok;
672 671
673#ifdef CONFIG_TCP_MD5SIG 672#ifdef CONFIG_TCP_MD5SIG
674 *md5 = tcp_rsk(req)->af_specific->md5_lookup(sk, req); 673 *md5 = tcp_rsk(req)->af_specific->md5_lookup(sk, req);
@@ -681,7 +680,7 @@ static unsigned tcp_synack_options(struct sock *sk,
681 * rather than TS in order to fit in better with old, 680 * rather than TS in order to fit in better with old,
682 * buggy kernels, but that was deemed to be unnecessary. 681 * buggy kernels, but that was deemed to be unnecessary.
683 */ 682 */
684 doing_ts &= !ireq->sack_ok; 683 ireq->tstamp_ok &= !ireq->sack_ok;
685 } 684 }
686#else 685#else
687 *md5 = NULL; 686 *md5 = NULL;
@@ -696,7 +695,7 @@ static unsigned tcp_synack_options(struct sock *sk,
696 opts->options |= OPTION_WSCALE; 695 opts->options |= OPTION_WSCALE;
697 remaining -= TCPOLEN_WSCALE_ALIGNED; 696 remaining -= TCPOLEN_WSCALE_ALIGNED;
698 } 697 }
699 if (likely(doing_ts)) { 698 if (likely(ireq->tstamp_ok)) {
700 opts->options |= OPTION_TS; 699 opts->options |= OPTION_TS;
701 opts->tsval = TCP_SKB_CB(skb)->when; 700 opts->tsval = TCP_SKB_CB(skb)->when;
702 opts->tsecr = req->ts_recent; 701 opts->tsecr = req->ts_recent;
@@ -704,7 +703,7 @@ static unsigned tcp_synack_options(struct sock *sk,
704 } 703 }
705 if (likely(ireq->sack_ok)) { 704 if (likely(ireq->sack_ok)) {
706 opts->options |= OPTION_SACK_ADVERTISE; 705 opts->options |= OPTION_SACK_ADVERTISE;
707 if (unlikely(!doing_ts)) 706 if (unlikely(!ireq->tstamp_ok))
708 remaining -= TCPOLEN_SACKPERM_ALIGNED; 707 remaining -= TCPOLEN_SACKPERM_ALIGNED;
709 } 708 }
710 709
@@ -712,7 +711,7 @@ static unsigned tcp_synack_options(struct sock *sk,
712 * If the <SYN> options fit, the same options should fit now! 711 * If the <SYN> options fit, the same options should fit now!
713 */ 712 */
714 if (*md5 == NULL && 713 if (*md5 == NULL &&
715 doing_ts && 714 ireq->tstamp_ok &&
716 cookie_plus > TCPOLEN_COOKIE_BASE) { 715 cookie_plus > TCPOLEN_COOKIE_BASE) {
717 int need = cookie_plus; /* has TCPOLEN_COOKIE_BASE */ 716 int need = cookie_plus; /* has TCPOLEN_COOKIE_BASE */
718 717