netdev - [PATCH v2] sctp: disable max_burst when the max

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Message-ID: <529EF6B7.7000501@huawei.com>
Date:	Wed, 4 Dec 2013 17:32:39 +0800
From:	Wang Weidong <wangweidong1@...wei.com>
To:	Vlad Yasevich <vyasevich@...il.com>, <nhorman@...driver.com>,
	David Miller <davem@...emloft.net>
CC:	<linux-sctp@...r.kernel.org>, <netdev@...r.kernel.org>,
	Daniel Borkmann <dborkman@...hat.com>
Subject: [PATCH v2] sctp: disable max_burst when the max_burst is 0

As Michael pointed out that when max_burst is 0, it just disable
max_burst. It declared in rfc6458#section-8.1.24. so add the check
in sctp_transport_burst_limited, when it 0, just do nothing.

Reviewed-by: Daniel Borkmann <dborkman@...hat.com>
Suggested-by: Vlad Yasevich <vyasevich@...il.com>
Suggested-by: Michael Tuexen <Michael.Tuexen@...chi.franken.de>
Signed-off-by: Wang Weidong <wangweidong1@...wei.com>
---
 net/sctp/transport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index e332efb..efc46ff 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -573,7 +573,7 @@ void sctp_transport_burst_limited(struct sctp_transport *t)
 	u32 old_cwnd = t->cwnd;
 	u32 max_burst_bytes;
 
-	if (t->burst_limited)
+	if (t->burst_limited || asoc->max_burst == 0)
 		return;
 
 	max_burst_bytes = t->flight_size + (asoc->max_burst * asoc->pathmtu);
-- 
1.7.12



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