linux-kernel - Re: [PATCH net-next] mptcp: fix rcv buffer auto-tuning

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Message-Id: <169024442128.15014.7119910740780685151.git-patchwork-notify@kernel.org>
Date:   Tue, 25 Jul 2023 00:20:21 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Matthieu Baerts <matthieu.baerts@...sares.net>
Cc:     mptcp@...ts.linux.dev, edumazet@...gle.com, davem@...emloft.net,
        kuba@...nel.org, pabeni@...hat.com, martineau@...nel.org,
        soheil@...gle.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] mptcp: fix rcv buffer auto-tuning

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Thu, 20 Jul 2023 20:47:50 +0200 you wrote:
> From: Paolo Abeni <pabeni@...hat.com>
> 
> The MPTCP code uses the assumption that the tcp_win_from_space() helper
> does not use any TCP-specific field, and thus works correctly operating
> on an MPTCP socket.
> 
> The commit dfa2f0483360 ("tcp: get rid of sysctl_tcp_adv_win_scale")
> broke such assumption, and as a consequence most MPTCP connections stall
> on zero-window event due to auto-tuning changing the rcv buffer size
> quite randomly.
> 
> [...]

Here is the summary with links:
  - [net-next] mptcp: fix rcv buffer auto-tuning
    https://git.kernel.org/netdev/net-next/c/b8dc6d6ce931

You are awesome, thank you!
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