linux-kernel - Re: [PATCH net] net: annotate data race around dev->flags in __dev_change

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Message-ID: <20240729113611.6433d447@kernel.org>
Date: Mon, 29 Jul 2024 11:36:11 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Jeongjun Park <aha310510@...il.com>
Cc: davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
 jiri@...nulli.us, syzbot+113b65786d8662e21ff7@...kaller.appspotmail.com,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] net: annotate data race around dev->flags in
 __dev_change_flags

On Tue, 30 Jul 2024 01:33:26 +0900 Jeongjun Park wrote:
> According to KCSAN report, there is a read/write race between 
> __dev_change_flags and netif_is_bond_master for dev->flags.
> 
> Thereforce, __dev_change_flags() needs protection.

I told you already that this just silences the warning, you need to
provide real analysis and explanation of why this is right.
https://lore.kernel.org/all/20240729074132.6edec347@kernel.org/
-- 
pw-bot: reject