linux-kernel - Re: [PATCH 2/3] net: dsa: b53: mmap: register MDIO Mux bus controller

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Message-ID: <1ed6d7d9-4d3e-4bcb-8023-75bb52c2f272@lunn.ch>
Date:   Fri, 17 Mar 2023 17:26:56 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Álvaro Fernández Rojas <noltari@...il.com>
Cc:     Vladimir Oltean <olteanv@...il.com>, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        f.fainelli@...il.com, jonas.gorski@...il.com, hkallweit1@...il.com,
        linux@...linux.org.uk, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] net: dsa: b53: mmap: register MDIO Mux bus controller

> > The proposed solution is too radical for a problem that was not properly
> > characterized yet, so this patch set has my temporary NACK.
> 
> Forgive me, but why do you consider this solution too radical?

I have to agree with Vladimir here. The problem is not the driver, but
when the driver is instantiated. It seems radical to remove a driver
just because it loads at the wrong time. Ideally you want the driver
to figure out now is not a good time and return -EPROBE_DEFER, because
a resource it requires it not available.

  Andrew