netdev - Re: [PATCH net-next v1 1/1] mlxbf_gige: Fix kernel panic at shutdown

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Date: Mon, 5 Jun 2023 16:15:07 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Asmaa Mnebhi <asmaa@...dia.com>
Cc: <davem@...emloft.net>, <edumazet@...gle.com>, <pabeni@...hat.com>,
 <netdev@...r.kernel.org>, <cai.huoqing@...ux.dev>, <brgl@...ev.pl>,
 <chenhao288@...ilicon.com>, <huangguangbin2@...wei.com>, David Thompson
 <davthompson@...dia.com>
Subject: Re: [PATCH net-next v1 1/1] mlxbf_gige: Fix kernel panic at
 shutdown

On Fri, 2 Jun 2023 14:24:43 -0400 Asmaa Mnebhi wrote:
> There is a race condition happening during shutdown due to pending napi transactions.
> Since mlxbf_gige_poll is still running, it tries to access a NULL pointer and as a
> result causes a kernel panic.
> To fix this during shutdown, invoke mlxbf_gige_remove to disable and dequeue napi.
> 
> Fixes: f92e1869d74e ("Add Mellanox BlueField Gigabit Ethernet driver")
> Signed-off-by: Asmaa Mnebhi <asmaa@...dia.com>

Judging by the Fixes tag the problem can happen on 6.4-rc5 already,
right? So the tree in the [PATCH ] tag should have been net rather
than net-next?

https://www.kernel.org/doc/html/next/process/maintainer-netdev.html#git-trees-and-patch-flow

No need to repost confirmation is enough.