include: Update mptcp_upstream.h (#276)

Author: Ossama Othman

include/linux/mptcp_upstream.h

@@ -160,6 +160,12 @@ struct mptcp_info {
  *                           daddr4 | daddr6, sport, dport, backup, if_idx
  *                           [, error]
  * The priority of a subflow has changed. 'error' should not be set.
+ *
+ * MPTCP_EVENT_LISTENER_CREATED: family, sport, saddr4 | saddr6
+ * A new PM listener is created.
+ *
+ * MPTCP_EVENT_LISTENER_CLOSED: family, sport, saddr4 | saddr6
+ * A PM listener is closed.
  */
 enum mptcp_event_type {
 	MPTCP_EVENT_UNSPEC = 0,
@@ -174,6 +180,9 @@ enum mptcp_event_type {
 	MPTCP_EVENT_SUB_CLOSED = 11,
 
 	MPTCP_EVENT_SUB_PRIORITY = 13,
+
+	MPTCP_EVENT_LISTENER_CREATED = 15,
+	MPTCP_EVENT_LISTENER_CLOSED = 16,
 };
 
 enum mptcp_event_attr {