linux-kernel - Re: [PATCH] tcp: tcp_make_synack() can be called from process context

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Message-Id: <167843281707.16830.4085596086029283726.git-patchwork-notify@kernel.org>
Date:   Fri, 10 Mar 2023 07:20:17 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Breno Leitao <leitao@...ian.org>
Cc:     edumazet@...gle.com, davem@...emloft.net, kuba@...nel.org,
        pabeni@...hat.com, netdev@...r.kernel.org,
        laurent.fasnacht@...ton.ch, hkchu@...gle.com, leit@...a.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tcp: tcp_make_synack() can be called from process context

Hello:

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

On Wed,  8 Mar 2023 11:07:45 -0800 you wrote:
> tcp_rtx_synack() now could be called in process context as explained in
> 0a375c822497 ("tcp: tcp_rtx_synack() can be called from process
> context").
> 
> tcp_rtx_synack() might call tcp_make_synack(), which will touch per-CPU
> variables with preemption enabled. This causes the following BUG:
> 
> [...]

Here is the summary with links:
  - tcp: tcp_make_synack() can be called from process context
    https://git.kernel.org/netdev/net/c/bced3f7db95f

You are awesome, thank you!
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