sctp: fasthandoff with ASCONF at mobile-node

Fast retransmission after changing the last address
with ASCONF negotiation

Signed-off-by: Michio Honda <micchie@sfc.wide.ad.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 0121e0ab0351..a85eeeb55dd0 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -3400,8 +3400,10 @@ int sctp_process_asconf_ack(struct sctp_association *asoc,
                 asconf_len -= length;
         }
 
-        if (no_err && asoc->src_out_of_asoc_ok)
+        if (no_err && asoc->src_out_of_asoc_ok) {
                 asoc->src_out_of_asoc_ok = 0;
+                sctp_transport_immediate_rtx(asoc->peer.primary_path);
+        }
 
         /* Free the cached last sent asconf chunk. */
         list_del_init(&asconf->transmitted_list);