netdev - Re: [PATCH net] tcp: Retain ECT bits for tos reflection

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Date:   Tue, 08 Dec 2020 16:30:09 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     weiwan@...gle.com
Cc:     kuba@...nel.org, netdev@...r.kernel.org, alexanderduyck@...com,
        edumazet@...gle.com
Subject: Re: [PATCH net] tcp: Retain ECT bits for tos reflection

From: Wei Wang <weiwan@...gle.com>
Date: Tue,  8 Dec 2020 09:55:08 -0800

> For DCTCP, we have to retain the ECT bits set by the congestion control
> algorithm on the socket when reflecting syn TOS in syn-ack, in order to
> make ECN work properly.
> 
> Fixes: ac8f1710c12b ("tcp: reflect tos value received in SYN to the socket")
> Reported-by: Alexander Duyck <alexanderduyck@...com>
> Signed-off-by: Wei Wang <weiwan@...gle.com>
> Reviewed-by: Eric Dumazet <edumazet@...gle.com>

Applied, thanks.