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-rw-r--r--net/sctp/outqueue.c3
-rw-r--r--net/sctp/transport.c7
2 files changed, 6 insertions, 4 deletions
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index bc411c89621..a367d15a21a 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -428,7 +428,8 @@ void sctp_retransmit_mark(struct sctp_outq *q,
* retransmitting due to T3 timeout.
*/
if (reason == SCTP_RTXR_T3_RTX &&
- (jiffies - chunk->sent_at) < transport->last_rto)
+ time_before(jiffies, chunk->sent_at +
+ transport->last_rto))
continue;
/* RFC 2960 6.2.1 Processing a Received SACK
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index 5c29b14ee9a..e5dde45c79d 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -543,8 +543,8 @@ void sctp_transport_lower_cwnd(struct sctp_transport *transport,
* congestion indications more than once every window of
* data (or more loosely more than once every round-trip time).
*/
- if ((jiffies - transport->last_time_ecne_reduced) >
- transport->rtt) {
+ if (time_after(jiffies, transport->last_time_ecne_reduced +
+ transport->rtt)) {
transport->ssthresh = max(transport->cwnd/2,
4*transport->asoc->pathmtu);
transport->cwnd = transport->ssthresh;
@@ -561,7 +561,8 @@ void sctp_transport_lower_cwnd(struct sctp_transport *transport,
* to be done every RTO interval, we do it every hearbeat
* interval.
*/
- if ((jiffies - transport->last_time_used) > transport->rto)
+ if (time_after(jiffies, transport->last_time_used +
+ transport->rto))
transport->cwnd = max(transport->cwnd/2,
4*transport->asoc->pathmtu);
break;