netdev - Re: [RFC PATCH net-next 01/12] net: mdio: mscc-miim: Fix the mdio controller

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Date:   Mon, 20 Sep 2021 13:52:06 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Horatiu Vultur <horatiu.vultur@...rochip.com>
Cc:     davem@...emloft.net, kuba@...nel.org, robh+dt@...nel.org,
        linux@...linux.org.uk, f.fainelli@...il.com,
        alexandre.belloni@...tlin.com, vladimir.oltean@....com,
        UNGLinuxDriver@...rochip.com, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-phy@...ts.infradead.org, linux-pm@...r.kernel.org
Subject: Re: [RFC PATCH net-next 01/12] net: mdio: mscc-miim: Fix the mdio
 controller

On Mon, Sep 20, 2021 at 11:52:07AM +0200, Horatiu Vultur wrote:
> According to the documentation the second resource is optional. But the
> blamed commit ignores that and if the resource is not there it just
> fails.
> 
> This patch reverts that to still allow the second resource to be
> optional because other SoC have the some MDIO controller and doesn't
> need to second resource.
> 
> Fixes: 672a1c394950 ("net: mdio: mscc-miim: Make use of the helper function devm_platform_ioremap_resource()")
> Signed-off-by: Horatiu Vultur <horatiu.vultur@...rochip.com>

Hi Moratiu

The script kiddies might come long and 'fix' this again. Maybe
consider adding devm_platform_ioremap_resource_optional(), following
the pattern of other _optional() API calls. Otherwise add a comment.

    Andrew