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-rw-r--r--net/dccp/ipv4.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 129ed8f74138..683902fcc8ed 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -161,17 +161,10 @@ static inline void dccp_do_pmtu_discovery(struct sock *sk,
if (sk->sk_state == DCCP_LISTEN)
return;
- /* We don't check in the destentry if pmtu discovery is forbidden
- * on this route. We just assume that no packet_to_big packets
- * are send back when pmtu discovery is not active.
- * There is a small race when the user changes this flag in the
- * route, but I think that's acceptable.
- */
- if ((dst = __sk_dst_check(sk, 0)) == NULL)
+ dst = inet_csk_update_pmtu(sk, mtu);
+ if (!dst)
return;
- dst->ops->update_pmtu(dst, mtu);
-
/* Something is about to be wrong... Remember soft error
* for the case, if this connection will not able to recover.
*/