linux-kernel - Re: [net-next: PATCH 04/12] net: mvpp2: initialize port fwnode pointer

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Message-ID: <CAPv3WKfVs9KVboCBgiwR_WA+aPD02Axwvb5uSgjKDsvxYepe7A@mail.gmail.com>
Date:   Tue, 21 Jun 2022 11:28:10 +0200
From:   Marcin Wojtas <mw@...ihalf.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.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 04/12] net: mvpp2: initialize port fwnode pointer

pon., 20 cze 2022 o 19:44 Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> napisał(a):
>
> On Mon, Jun 20, 2022 at 08:43:05PM +0300, Andy Shevchenko wrote:
> > On Mon, Jun 20, 2022 at 05:02:17PM +0200, Marcin Wojtas wrote:
> > > As a preparation to switch the DSA subsystem from using
> > > of_find_net_device_by_node() to its more generic fwnode_
> > > equivalent, the port's device structure should be updated
> > > with its fwnode pointer, similarly to of_node - see analogous
> > > commit c4053ef32208 ("net: mvpp2: initialize port of_node pointer").
> > >
> > > This patch is required to prevent a regression before updating
> > > the DSA API on boards that connect the mvpp2 port to switch,
> > > such as Clearfog GT-8K or CN913x CEx7 Evaluation Board.
> >
> > ...
> >
> > >     dev->dev.of_node = port_node;
> > > +   dev->dev.fwnode = port_fwnode;
> >
> > device_set_node() ?
>
> Ah, important remark to all device_set_node() comments. It assumes that you
> replace _both_ assignments with _single_ call.
>

OK, will do.

Thanks,
Marcin