netdev - Re: [PATCH] alx: acquire mutex for alx_reinit in alx_change

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Message-ID: <20220310150500.38ae567c@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Thu, 10 Mar 2022 15:05:00 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Niels Dossche <dossche.niels@...il.com>
Cc:     netdev@...r.kernel.org, Chris Snook <chris.snook@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Johannes Berg <johannes@...solutions.net>
Subject: Re: [PATCH] alx: acquire mutex for alx_reinit in alx_change_mtu

On Thu, 10 Mar 2022 17:13:16 +0100 Niels Dossche wrote:
> alx_reinit has a lockdep assertion that the alx->mtx mutex must be held.
> alx_reinit is called from two places: alx_reset and alx_change_mtu.
> alx_reset does acquire alx->mtx before calling alx_reinit.
> alx_change_mtu does not acquire this mutex, nor do its callers or any
> path towards alx_change_mtu.
> Acquire the mutex in alx_change_mtu.
> 
> Signed-off-by: Niels Dossche <dossche.niels@...il.com>

What's the Fixes tag?