Merge 4.12-rc2 into usb-next

[karo-tx-linux.git] / net / ipv4 / tcp_input.c

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 5a3ad09e2786fb41ad12681d09938c645b69866d..174d4376baa5374c11caecc0e0452fa938d63561 100644 (file)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1179,13 +1179,14 @@ static int tcp_match_skb_to_sack(struct sock *sk, struct sk_buff *skb,
                 */
                if (pkt_len > mss) {
                        unsigned int new_len = (pkt_len / mss) * mss;
-                       if (!in_sack && new_len < pkt_len) {
+                       if (!in_sack && new_len < pkt_len)
                                new_len += mss;
-                               if (new_len >= skb->len)
-                                       return 0;
-                       }
                        pkt_len = new_len;
                }
+
+               if (pkt_len >= skb->len && !in_sack)
+                       return 0;
+
                err = tcp_fragment(sk, skb, pkt_len, mss, GFP_ATOMIC);
                if (err < 0)
                        return err;
@@ -3189,7 +3190,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets,
                        int delta;
 
                        /* Non-retransmitted hole got filled? That's reordering */
-                       if (reord < prior_fackets)
+                       if (reord < prior_fackets && reord <= tp->fackets_out)
                                tcp_update_reordering(sk, tp->fackets_out - reord, 0);
 
                        delta = tcp_is_fack(tp) ? pkts_acked :