netdev - Re: [PATCH net] tcp: avoid cwnd undo after receiving ECN

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Message-Id: <20160129.230419.1854358229164635050.davem@davemloft.net>
Date:	Fri, 29 Jan 2016 23:04:19 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	ycheng@...gle.com
Cc:	netdev@...r.kernel.org, ncardwell@...gle.com, edumazet@...gle.com
Subject: Re: [PATCH net] tcp: avoid cwnd undo after receiving ECN

From: Yuchung Cheng <ycheng@...gle.com>
Date: Fri, 29 Jan 2016 15:11:50 -0800

> RFC 4015 section 3.4 says the TCP sender MUST refrain from
> reversing the congestion control state when the ACK signals
> congestion through the ECN-Echo flag. Currently we may not
> always do that when prior_ssthresh is reset upon receiving
> ACKs with ECE marks. This patch fixes that.
> 
> Signed-off-by: Yuchung Cheng <ycheng@...gle.com>
> Signed-off-by: Neal Cardwell <ncardwell@...gle.com>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied, thanks.