diff options
Diffstat (limited to 'net/dccp/ipv6.c')
| -rw-r--r-- | net/dccp/ipv6.c | 35 |
1 files changed, 4 insertions, 31 deletions
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 090c0800ce03..3ee0342e1cec 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -145,39 +145,12 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, if ((1 << sk->sk_state) & (DCCPF_LISTEN | DCCPF_CLOSED)) goto out; - /* icmp should have updated the destination cache entry */ - dst = __sk_dst_check(sk, np->dst_cookie); - if (dst == NULL) { - struct inet_sock *inet = inet_sk(sk); - struct flowi6 fl6; - - /* BUGGG_FUTURE: Again, it is not clear how - to handle rthdr case. Ignore this complexity - for now. - */ - memset(&fl6, 0, sizeof(fl6)); - fl6.flowi6_proto = IPPROTO_DCCP; - fl6.daddr = np->daddr; - fl6.saddr = np->saddr; - fl6.flowi6_oif = sk->sk_bound_dev_if; - fl6.fl6_dport = inet->inet_dport; - fl6.fl6_sport = inet->inet_sport; - security_sk_classify_flow(sk, flowi6_to_flowi(&fl6)); - - dst = ip6_dst_lookup_flow(sk, &fl6, NULL, false); - if (IS_ERR(dst)) { - sk->sk_err_soft = -PTR_ERR(dst); - goto out; - } - } else - dst_hold(dst); - - dst->ops->update_pmtu(dst, ntohl(info)); + dst = inet6_csk_update_pmtu(sk, ntohl(info)); + if (!dst) + goto out; - if (inet_csk(sk)->icsk_pmtu_cookie > dst_mtu(dst)) { + if (inet_csk(sk)->icsk_pmtu_cookie > dst_mtu(dst)) dccp_sync_mss(sk, dst_mtu(dst)); - } /* else let the usual retransmit timer handle it */ - dst_release(dst); goto out; } |