linux-kernel - Re: [PATCH RFC net-next 1/5] net: phy: mscc-miim: reject clause 45 register accesses

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Message-ID: <Yjt0tQyq3NrEG3EO@lunn.ch>
Date:   Wed, 23 Mar 2022 20:27:49 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Michael Walle <michael@...le.cc>
Cc:     Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "David S . Miller" <davem@...emloft.net>,
        Xu Liang <lxu@...linear.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC net-next 1/5] net: phy: mscc-miim: reject clause 45
 register accesses

On Wed, Mar 23, 2022 at 07:34:15PM +0100, Michael Walle wrote:
> The driver doesn't support clause 45 register access yet, but doesn't
> check if the access is a c45 one either. This leads to spurious register
> reads and writes. Add the check.
> 
> Fixes: 542671fe4d86 ("net: phy: mscc-miim: Add MDIO driver")
> Signed-off-by: Michael Walle <michael@...le.cc>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew