linux-kernel - Re: [PATCH net] devlink: Hold devlink lock on health reporter dump get

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Message-ID: <20231004163929.70977d05@kernel.org>
Date:   Wed, 4 Oct 2023 16:39:29 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Moshe Shemesh <moshe@...dia.com>
Cc:     "David S. Miller" <davem@...emloft.net>, <netdev@...r.kernel.org>,
        Jiri Pirko <jiri@...dia.com>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net] devlink: Hold devlink lock on health reporter dump
 get

On Sun, 1 Oct 2023 18:19:40 +0300 Moshe Shemesh wrote:
> Devlink health dump get callback should take devlink lock as any other
> devlink callback. Add devlink lock to the callback and to any call for
> devlink_health_do_dump().
> 
> As devlink lock is added to any callback of dump, the reporter dump_lock
> is now redundant and can be removed.

I love the change but it needs more info in the commit message :)

 1. what exact / example but real problem are you solving?
 2. some words of reassurance that you checked all the drivers
    and the locking change should be safe (none of them take
    instance locks in reporter callbacks etc)
-- 
pw-bot: cr