1 files changed, 9 insertions, 9 deletions

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 29222b964951..677419d0c9ad 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -355,8 +355,6 @@ static void tcp_clamp_window(struct sock *sk, struct tcp_sock *tp)
                         app_win -= icsk->icsk_ack.rcv_mss;
                 app_win = max(app_win, 2U*tp->advmss);
 
-                if (!ofo_win)
-                        tp->window_clamp = min(tp->window_clamp, app_win);
                 tp->rcv_ssthresh = min(tp->window_clamp, 2U*tp->advmss);
         }
 }
@@ -979,14 +977,19 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
                         if (!before(TCP_SKB_CB(skb)->seq, end_seq))
                                 break;
 
+                        in_sack = !after(start_seq, TCP_SKB_CB(skb)->seq) &&
+                                !before(end_seq, TCP_SKB_CB(skb)->end_seq);
+
                         pcount = tcp_skb_pcount(skb);
 
-                        if (pcount > 1 &&
-                            (after(start_seq, TCP_SKB_CB(skb)->seq) ||
-                             before(end_seq, TCP_SKB_CB(skb)->end_seq))) {
+                        if (pcount > 1 && !in_sack &&
+                            after(TCP_SKB_CB(skb)->end_seq, start_seq)) {
                                 unsigned int pkt_len;
 
-                                if (after(start_seq, TCP_SKB_CB(skb)->seq))
+                                in_sack = !after(start_seq,
+                                                 TCP_SKB_CB(skb)->seq);
+
+                                if (!in_sack)
                                         pkt_len = (start_seq -
                                                    TCP_SKB_CB(skb)->seq);
                                 else
@@ -999,9 +1002,6 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
 
                         fack_count += pcount;
 
-                        in_sack = !after(start_seq, TCP_SKB_CB(skb)->seq) &&
-                                !before(end_seq, TCP_SKB_CB(skb)->end_seq);
-
                         sacked = TCP_SKB_CB(skb)->sacked;
 
                         /* Account D-SACK for retransmitted packet. */