sctp: Clear fast_recovery on the transport when T3 timer expires.

If T3 timer expires, we are retransmitting data due to timeout any
any fast recovery is null and void.  We can clear the fast recovery
flag.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index e5dde45c79d..c256e483931 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -503,6 +503,9 @@ void sctp_transport_lower_cwnd(struct sctp_transport *transport,
                 transport->ssthresh = max(transport->cwnd/2,
                                           4*transport->asoc->pathmtu);
                 transport->cwnd = transport->asoc->pathmtu;
+
+                /* T3-rtx also clears fast recovery on the transport */
+                transport->fast_recovery = 0;
                 break;
 
         case SCTP_LOWER_CWND_FAST_RTX: