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-rw-r--r--net/sctp/associola.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 532634861db1..024c3ebd9661 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -474,6 +474,15 @@ static void sctp_association_destroy(struct sctp_association *asoc)
474void sctp_assoc_set_primary(struct sctp_association *asoc, 474void sctp_assoc_set_primary(struct sctp_association *asoc,
475 struct sctp_transport *transport) 475 struct sctp_transport *transport)
476{ 476{
477 int changeover = 0;
478
479 /* it's a changeover only if we already have a primary path
480 * that we are changing
481 */
482 if (asoc->peer.primary_path != NULL &&
483 asoc->peer.primary_path != transport)
484 changeover = 1 ;
485
477 asoc->peer.primary_path = transport; 486 asoc->peer.primary_path = transport;
478 487
479 /* Set a default msg_name for events. */ 488 /* Set a default msg_name for events. */
@@ -499,12 +508,12 @@ void sctp_assoc_set_primary(struct sctp_association *asoc,
499 * double switch to the same destination address. 508 * double switch to the same destination address.
500 */ 509 */
501 if (transport->cacc.changeover_active) 510 if (transport->cacc.changeover_active)
502 transport->cacc.cycling_changeover = 1; 511 transport->cacc.cycling_changeover = changeover;
503 512
504 /* 2) The sender MUST set CHANGEOVER_ACTIVE to indicate that 513 /* 2) The sender MUST set CHANGEOVER_ACTIVE to indicate that
505 * a changeover has occurred. 514 * a changeover has occurred.
506 */ 515 */
507 transport->cacc.changeover_active = 1; 516 transport->cacc.changeover_active = changeover;
508 517
509 /* 3) The sender MUST store the next TSN to be sent in 518 /* 3) The sender MUST store the next TSN to be sent in
510 * next_tsn_at_change. 519 * next_tsn_at_change.