netdev - Re: [PATCH] tcp/dccp: allow a connection when sk_max_ack

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Message-Id: 
 <173601003524.2470506.11417048645260557728.git-patchwork-notify@kernel.org>
Date: Sat, 04 Jan 2025 17:00:35 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Zhongqiu Duan <dzq.aishenghu0@...il.com>
Cc: netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
 kerneljasonxing@...il.com, kuba@...nel.org, pabeni@...hat.com,
 kuniyu@...zon.com
Subject: Re: [PATCH] tcp/dccp: allow a connection when sk_max_ack_backlog is zero

Hello:

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

On Thu,  2 Jan 2025 17:14:26 +0000 you wrote:
> If the backlog of listen() is set to zero, sk_acceptq_is_full() allows
> one connection to be made, but inet_csk_reqsk_queue_is_full() does not.
> When the net.ipv4.tcp_syncookies is zero, inet_csk_reqsk_queue_is_full()
> will cause an immediate drop before the sk_acceptq_is_full() check in
> tcp_conn_request(), resulting in no connection can be made.
> 
> This patch tries to keep consistent with 64a146513f8f ("[NET]: Revert
> incorrect accept queue backlog changes.").
> 
> [...]

Here is the summary with links:
  - tcp/dccp: allow a connection when sk_max_ack_backlog is zero
    https://git.kernel.org/netdev/net/c/3479c7549fb1

You are awesome, thank you!
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