linux-kernel - Re: [PATCH net-next 5/5] net: dsa: realtek: rtl8365mb: handle PHY interface modes correctly

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Message-ID: <CAJq09z4SSsG_SgDp6RSuLjHzqviaiiz8GK8tjbhLOLi6=5eAXg@mail.gmail.com>
Date:   Tue, 7 Jun 2022 11:39:01 -0300
From:   Luiz Angelo Daros de Luca <luizluca@...il.com>
To:     Alvin Šipraga <ALSI@...g-olufsen.dk>
Cc:     Alvin Šipraga <alvin@...s.dk>,
        Linus Walleij <linus.walleij@...aro.org>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Russell King <linux@...linux.org.uk>,
        "open list:NETWORKING DRIVERS" <netdev@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next 5/5] net: dsa: realtek: rtl8365mb: handle PHY
 interface modes correctly

> > That's a nice patch. But while dealing with ext interfaces, wouldn't
> > it be nice to also add
> > a mask for user ports? We could easily validate if a declared dsa port
> > really exists.
>
> At best this will be useful to emit a warning for the device tree author.
> Can you see any other benefit?

No, that's it. It might avoid some headaches when someone simply
assumes that ports are sequential.
All models have holes in port sequences but it will get worse once we
support a variant like RTL8363SC that port_id starts at 2.

Regards,

Luiz