diff options
Diffstat (limited to 'net/sctp/output.c')
| -rw-r--r-- | net/sctp/output.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c index 1441eaf460bb..6614c9fdc51e 100644 --- a/net/sctp/output.c +++ b/net/sctp/output.c @@ -508,20 +508,14 @@ merge: sizeof(struct inet6_skb_parm))); skb_shinfo(head)->gso_segs = pkt_count; skb_shinfo(head)->gso_size = GSO_BY_FRAGS; - rcu_read_lock(); - if (skb_dst(head) != tp->dst) { - dst_hold(tp->dst); - sk_setup_caps(sk, tp->dst); - } - rcu_read_unlock(); goto chksum; } if (sctp_checksum_disable) return 1; - if (!(skb_dst(head)->dev->features & NETIF_F_SCTP_CRC) || - dst_xfrm(skb_dst(head)) || packet->ipfragok) { + if (!(tp->dst->dev->features & NETIF_F_SCTP_CRC) || + dst_xfrm(tp->dst) || packet->ipfragok || tp->encap_port) { struct sctphdr *sh = (struct sctphdr *)skb_transport_header(head); @@ -548,7 +542,6 @@ int sctp_packet_transmit(struct sctp_packet *packet, gfp_t gfp) struct sctp_association *asoc = tp->asoc; struct sctp_chunk *chunk, *tmp; int pkt_count, gso = 0; - struct dst_entry *dst; struct sk_buff *head; struct sctphdr *sh; struct sock *sk; @@ -585,13 +578,18 @@ int sctp_packet_transmit(struct sctp_packet *packet, gfp_t gfp) sh->checksum = 0; /* drop packet if no dst */ - dst = dst_clone(tp->dst); - if (!dst) { + if (!tp->dst) { IP_INC_STATS(sock_net(sk), IPSTATS_MIB_OUTNOROUTES); kfree_skb(head); goto out; } - skb_dst_set(head, dst); + + rcu_read_lock(); + if (__sk_dst_get(sk) != tp->dst) { + dst_hold(tp->dst); + sk_setup_caps(sk, tp->dst); + } + rcu_read_unlock(); /* pack up chunks */ pkt_count = sctp_packet_pack(packet, head, gso, gfp); |