linux-kernel - Re: [net-next PATCH v2 3/4] drivers: net: dsa: qca8k: rework and simplify mdiobus logic

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Message-ID: <YlrTS7IDo1m32S36@lunn.ch>
Date:   Sat, 16 Apr 2022 16:31:39 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     Ansuel Smith <ansuelsmth@...il.com>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [net-next PATCH v2 3/4] drivers: net: dsa: qca8k: rework and
 simplify mdiobus logic

> Does the MDIO bus id constitute unbreakable ABI? I hope not, otherwise
> as you say, we couldn't support multiple switches.

In theory yes, but in practice i doubt it is. I would suggest you make
the change. If we get a report of a regression, then we can think
about it some more.

      Andrew