1 files changed, 18 insertions, 18 deletions

diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index 132046cb82fc..394c57ca2f54 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -48,6 +48,8 @@
  * be incorporated into the next SCTP release.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/random.h>
@@ -209,15 +211,17 @@ void sctp_transport_set_owner(struct sctp_transport *transport,
 }
 
 /* Initialize the pmtu of a transport. */
-void sctp_transport_pmtu(struct sctp_transport *transport)
+void sctp_transport_pmtu(struct sctp_transport *transport, struct sock *sk)
 {
-        struct dst_entry *dst;
-
-        dst = transport->af_specific->get_dst(NULL, &transport->ipaddr, NULL);
+        /* If we don't have a fresh route, look one up */
+        if (!transport->dst || transport->dst->obsolete > 1) {
+                dst_release(transport->dst);
+                transport->af_specific->get_dst(transport, &transport->saddr,
+                                                &transport->fl, sk);
+        }
 
-        if (dst) {
-                transport->pathmtu = dst_mtu(dst);
-                dst_release(dst);
+        if (transport->dst) {
+                transport->pathmtu = dst_mtu(transport->dst);
         } else
                 transport->pathmtu = SCTP_DEFAULT_MAXSEGMENT;
 }
@@ -244,10 +248,9 @@ void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu)
         struct dst_entry *dst;
 
         if (unlikely(pmtu < SCTP_DEFAULT_MINSEGMENT)) {
-                printk(KERN_WARNING "%s: Reported pmtu %d too low, "
-                       "using default minimum of %d\n",
-                       __func__, pmtu,
-                       SCTP_DEFAULT_MINSEGMENT);
+                pr_warn("%s: Reported pmtu %d too low, using default minimum of %d\n",
+                        __func__, pmtu,
+                        SCTP_DEFAULT_MINSEGMENT);
                 /* Use default minimum segment size and disable
                  * pmtu discovery on this transport.
                  */
@@ -269,22 +272,19 @@ void sctp_transport_route(struct sctp_transport *transport,
 {
         struct sctp_association *asoc = transport->asoc;
         struct sctp_af *af = transport->af_specific;
-        union sctp_addr *daddr = &transport->ipaddr;
-        struct dst_entry *dst;
 
-        dst = af->get_dst(asoc, daddr, saddr);
+        af->get_dst(transport, saddr, &transport->fl, sctp_opt2sk(opt));
 
         if (saddr)
                 memcpy(&transport->saddr, saddr, sizeof(union sctp_addr));
         else
-                af->get_saddr(opt, asoc, dst, daddr, &transport->saddr);
+                af->get_saddr(opt, transport, &transport->fl);
 
-        transport->dst = dst;
         if ((transport->param_flags & SPP_PMTUD_DISABLE) && transport->pathmtu) {
                 return;
         }
-        if (dst) {
-                transport->pathmtu = dst_mtu(dst);
+        if (transport->dst) {
+                transport->pathmtu = dst_mtu(transport->dst);
 
                 /* Initialize sk->sk_rcv_saddr, if the transport is the
                  * association's active path for getsockname().