4 files changed, 15 insertions, 11 deletions

diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 535a18f57a13..ab1c472ea753 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -524,8 +524,7 @@ static inline void sctp_ssn_skip(struct sctp_stream *stream, __u16 id,
  */
 struct sctp_af {
         int             (*sctp_xmit)    (struct sk_buff *skb,
-                                         struct sctp_transport *,
-                                         int ipfragok);
+                                         struct sctp_transport *);
         int             (*setsockopt)   (struct sock *sk,
                                          int level,
                                          int optname,
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index a238d6834b33..483a01d0740a 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -195,8 +195,7 @@ out:
 }
 
 /* Based on tcp_v6_xmit() in tcp_ipv6.c. */
-static int sctp_v6_xmit(struct sk_buff *skb, struct sctp_transport *transport,
-                        int ipfragok)
+static int sctp_v6_xmit(struct sk_buff *skb, struct sctp_transport *transport)
 {
         struct sock *sk = skb->sk;
         struct ipv6_pinfo *np = inet6_sk(sk);
@@ -231,7 +230,10 @@ static int sctp_v6_xmit(struct sk_buff *skb, struct sctp_transport *transport,
 
         SCTP_INC_STATS(SCTP_MIB_OUTSCTPPACKS);
 
-        return ip6_xmit(sk, skb, &fl, np->opt, ipfragok);
+        if (!(transport->param_flags & SPP_PMTUD_ENABLE))
+                skb->local_df = 1;
+
+        return ip6_xmit(sk, skb, &fl, np->opt, 0);
 }
 
 /* Returns the dst cache entry for the given source and destination ip
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 45684646b1db..0dc4a7dfb234 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -586,10 +586,8 @@ int sctp_packet_transmit(struct sctp_packet *packet)
         SCTP_DEBUG_PRINTK("***sctp_transmit_packet*** skb len %d\n",
                           nskb->len);
 
-        if (tp->param_flags & SPP_PMTUD_ENABLE)
-                (*tp->af_specific->sctp_xmit)(nskb, tp, packet->ipfragok);
-        else
-                (*tp->af_specific->sctp_xmit)(nskb, tp, 1);
+        nskb->local_df = packet->ipfragok;
+        (*tp->af_specific->sctp_xmit)(nskb, tp);
 
 out:
         packet->size = packet->overhead;
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index a6e0818bcff5..0b65354aaf64 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -862,16 +862,21 @@ static int sctp_inet_supported_addrs(const struct sctp_sock *opt,
 
 /* Wrapper routine that calls the ip transmit routine. */
 static inline int sctp_v4_xmit(struct sk_buff *skb,
-                               struct sctp_transport *transport, int ipfragok)
+                               struct sctp_transport *transport)
 {
+        struct inet_sock *inet = inet_sk(skb->sk);
+
         SCTP_DEBUG_PRINTK("%s: skb:%p, len:%d, "
                           "src:%u.%u.%u.%u, dst:%u.%u.%u.%u\n",
                           __func__, skb, skb->len,
                           NIPQUAD(skb->rtable->rt_src),
                           NIPQUAD(skb->rtable->rt_dst));
 
+        inet->pmtudisc = transport->param_flags & SPP_PMTUD_ENABLE ?
+                         IP_PMTUDISC_DO : IP_PMTUDISC_DONT;
+
         SCTP_INC_STATS(SCTP_MIB_OUTSCTPPACKS);
-        return ip_queue_xmit(skb, ipfragok);
+        return ip_queue_xmit(skb, 0);
 }
 
 static struct sctp_af sctp_af_inet;