linux-kernel - Re: [net-next: PATCH 03/12] net: dsa: switch to device_/fwnode

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Message-ID: <YrGlUPxrK4XeaT5h@smile.fi.intel.com>
Date:   Tue, 21 Jun 2022 14:02:40 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Marcin Wojtas <mw@...ihalf.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>, Andrew Lunn <andrew@...n.ch>,
        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>, pabeni@...hat.com,
        Russell King - ARM Linux <linux@...linux.org.uk>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Grzegorz Bernacki <gjb@...ihalf.com>,
        Grzegorz Jaszczyk <jaz@...ihalf.com>,
        Tomasz Nowicki <tn@...ihalf.com>,
        Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@....com>,
        upstream@...ihalf.com
Subject: Re: [net-next: PATCH 03/12] net: dsa: switch to device_/fwnode_ APIs

On Tue, Jun 21, 2022 at 11:27:43AM +0200, Marcin Wojtas wrote:
> pon., 20 cze 2022 o 19:41 Andy Shevchenko
> <andriy.shevchenko@...ux.intel.com> napisał(a):
> > On Mon, Jun 20, 2022 at 05:02:16PM +0200, Marcin Wojtas wrote:

...

> > >       struct device_node      *dn;
> >
> > What prevents us from removing this?
> 
> I left it to satisfy possible issues with backward compatibility - I
> migrated mv88e6xxx, other DSA drivers still rely on of_* and may use
> this field.

If it is so, it's a way to get into troubles of desynchronized dn and fwnode.

> > > +     struct fwnode_handle    *fwnode;

-- 
With Best Regards,
Andy Shevchenko