1 files changed, 12 insertions, 0 deletions

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 8c2caa370e0f..ab9242e51d9e 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -608,4 +608,16 @@ static inline __u32 sctp_dst_mtu(const struct dst_entry *dst)
                                  SCTP_DEFAULT_MINSEGMENT));
 }
 
+static inline bool sctp_transport_pmtu_check(struct sctp_transport *t)
+{
+        __u32 pmtu = sctp_dst_mtu(t->dst);
+
+        if (t->pathmtu == pmtu)
+                return true;
+
+        t->pathmtu = pmtu;
+
+        return false;
+}
+
 #endif /* __net_sctp_h__ */