linux-kernel - Re: [PATCH net v2 2/2] smsc911x: avoid PHY being resumed when interface is not up

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ZBiK1Ii5eKmuIp+x@corigine.com>
Date:   Mon, 20 Mar 2023 17:33:24 +0100
From:   Simon Horman <simon.horman@...igine.com>
To:     Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc:     netdev@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Steve Glendinning <steve.glendinning@...well.net>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net v2 2/2] smsc911x: avoid PHY being resumed when
 interface is not up

On Mon, Mar 20, 2023 at 10:20:41AM +0100, Wolfram Sang wrote:
> SMSC911x doesn't need mdiobus suspend/resume, that's why it sets
> 'mac_managed_pm'. However, setting it needs to be moved from init to
> probe, so mdiobus PM functions will really never be called (e.g. when
> the interface is not up yet during suspend/resume). The errno is changed
> because ENODEV has a special meaning when returned in probe().
> 
> Fixes: 3ce9f2bef755 ("net: smsc911x: Stop and start PHY during suspend and resume")
> Suggested-by: Heiner Kallweit <hkallweit1@...il.com>
> Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>

Reviewed-by: Simon Horman <simon.horman@...igine.com>