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Diffstat (limited to 'net/sctp/transport.c')
-rw-r--r--net/sctp/transport.c51
1 files changed, 25 insertions, 26 deletions
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index 098f1d5f769e..bdbbc3fd7c14 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -116,7 +116,7 @@ struct sctp_transport *sctp_transport_new(struct net *net,
{
struct sctp_transport *transport;
- transport = t_new(struct sctp_transport, gfp);
+ transport = kzalloc(sizeof(*transport), gfp);
if (!transport)
goto fail;
@@ -176,7 +176,10 @@ static void sctp_transport_destroy_rcu(struct rcu_head *head)
*/
static void sctp_transport_destroy(struct sctp_transport *transport)
{
- SCTP_ASSERT(transport->dead, "Transport is not dead", return);
+ if (unlikely(!transport->dead)) {
+ WARN(1, "Attempt to destroy undead transport %p!\n", transport);
+ return;
+ }
call_rcu(&transport->rcu, sctp_transport_destroy_rcu);
@@ -317,11 +320,9 @@ void sctp_transport_put(struct sctp_transport *transport)
/* Update transport's RTO based on the newly calculated RTT. */
void sctp_transport_update_rto(struct sctp_transport *tp, __u32 rtt)
{
- /* Check for valid transport. */
- SCTP_ASSERT(tp, "NULL transport", return);
-
- /* We should not be doing any RTO updates unless rto_pending is set. */
- SCTP_ASSERT(tp->rto_pending, "rto_pending not set", return);
+ if (unlikely(!tp->rto_pending))
+ /* We should not be doing any RTO updates unless rto_pending is set. */
+ pr_debug("%s: rto_pending not set on transport %p!\n", __func__, tp);
if (tp->rttvar || tp->srtt) {
struct net *net = sock_net(tp->asoc->base.sk);
@@ -377,9 +378,8 @@ void sctp_transport_update_rto(struct sctp_transport *tp, __u32 rtt)
*/
tp->rto_pending = 0;
- SCTP_DEBUG_PRINTK("%s: transport: %p, rtt: %d, srtt: %d "
- "rttvar: %d, rto: %ld\n", __func__,
- tp, rtt, tp->srtt, tp->rttvar, tp->rto);
+ pr_debug("%s: transport:%p, rtt:%d, srtt:%d rttvar:%d, rto:%ld\n",
+ __func__, tp, rtt, tp->srtt, tp->rttvar, tp->rto);
}
/* This routine updates the transport's cwnd and partial_bytes_acked
@@ -433,12 +433,11 @@ void sctp_transport_raise_cwnd(struct sctp_transport *transport,
cwnd += pmtu;
else
cwnd += bytes_acked;
- SCTP_DEBUG_PRINTK("%s: SLOW START: transport: %p, "
- "bytes_acked: %d, cwnd: %d, ssthresh: %d, "
- "flight_size: %d, pba: %d\n",
- __func__,
- transport, bytes_acked, cwnd,
- ssthresh, flight_size, pba);
+
+ pr_debug("%s: slow start: transport:%p, bytes_acked:%d, "
+ "cwnd:%d, ssthresh:%d, flight_size:%d, pba:%d\n",
+ __func__, transport, bytes_acked, cwnd, ssthresh,
+ flight_size, pba);
} else {
/* RFC 2960 7.2.2 Whenever cwnd is greater than ssthresh,
* upon each SACK arrival that advances the Cumulative TSN Ack
@@ -459,12 +458,12 @@ void sctp_transport_raise_cwnd(struct sctp_transport *transport,
cwnd += pmtu;
pba = ((cwnd < pba) ? (pba - cwnd) : 0);
}
- SCTP_DEBUG_PRINTK("%s: CONGESTION AVOIDANCE: "
- "transport: %p, bytes_acked: %d, cwnd: %d, "
- "ssthresh: %d, flight_size: %d, pba: %d\n",
- __func__,
- transport, bytes_acked, cwnd,
- ssthresh, flight_size, pba);
+
+ pr_debug("%s: congestion avoidance: transport:%p, "
+ "bytes_acked:%d, cwnd:%d, ssthresh:%d, "
+ "flight_size:%d, pba:%d\n", __func__,
+ transport, bytes_acked, cwnd, ssthresh,
+ flight_size, pba);
}
transport->cwnd = cwnd;
@@ -558,10 +557,10 @@ void sctp_transport_lower_cwnd(struct sctp_transport *transport,
}
transport->partial_bytes_acked = 0;
- SCTP_DEBUG_PRINTK("%s: transport: %p reason: %d cwnd: "
- "%d ssthresh: %d\n", __func__,
- transport, reason,
- transport->cwnd, transport->ssthresh);
+
+ pr_debug("%s: transport:%p, reason:%d, cwnd:%d, ssthresh:%d\n",
+ __func__, transport, reason, transport->cwnd,
+ transport->ssthresh);
}
/* Apply Max.Burst limit to the congestion window: