From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gui Jianfeng Date: Wed, 16 Apr 2008 06:55:06 +0000 Subject: [PATCH] SCTP: Initialize partial_bytes_acked to 0, when all of the Message-Id: <4805A2CA.7030808@cn.fujitsu.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: vladislav Cc: David Miller , netdev , lksctp-dev , linux-sctp@vger.kernel.org Vlad, According to RFC4960 7.2.2, When all of the data transmitted by the sender has been acknowledged by the recerver, partial_bytes_acked is initialized to 0. This patch conforms to rfc requirement. Without this fix, cwnd might be error incremented. Signed-off-by: Gui Jianfeng --- net/sctp/outqueue.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c index c071446..cf79485 100644 --- a/net/sctp/outqueue.c +++ b/net/sctp/outqueue.c @@ -1544,6 +1544,9 @@ static void sctp_check_transmitted(struct sctp_outq *q, bytes_acked); transport->flight_size -= bytes_acked; + if (transport->flight_size = 0) { + transport->partial_bytes_acked = 0; + } q->outstanding_bytes -= bytes_acked; } else { /* RFC 2960 6.1, sctpimpguide-06 2.15.2 -- 1.5.3