1 files changed, 4 insertions, 2 deletions

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 59792d283ff8..b5ea036ca781 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2381,9 +2381,10 @@ static int tcp_repair_set_window(struct tcp_sock *tp, char __user *optbuf, int l
         return 0;
 }
 
-static int tcp_repair_options_est(struct tcp_sock *tp,
+static int tcp_repair_options_est(struct sock *sk,
                 struct tcp_repair_opt __user *optbuf, unsigned int len)
 {
+        struct tcp_sock *tp = tcp_sk(sk);
         struct tcp_repair_opt opt;
 
         while (len >= sizeof(opt)) {
@@ -2396,6 +2397,7 @@ static int tcp_repair_options_est(struct tcp_sock *tp,
                 switch (opt.opt_code) {
                 case TCPOPT_MSS:
                         tp->rx_opt.mss_clamp = opt.opt_val;
+                        tcp_mtup_init(sk);
                         break;
                 case TCPOPT_WINDOW:
                         {
@@ -2555,7 +2557,7 @@ static int do_tcp_setsockopt(struct sock *sk, int level,
                 if (!tp->repair)
                         err = -EINVAL;
                 else if (sk->sk_state == TCP_ESTABLISHED)
-                        err = tcp_repair_options_est(tp,
+                        err = tcp_repair_options_est(sk,
                                         (struct tcp_repair_opt __user *)optval,
                                         optlen);
                 else