linux-kernel - Re: [net-next: PATCH v3 6/8] net: core: switch to fwnode_find_net_device_by

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Date:   Thu, 28 Jul 2022 21:49:58 +0200
From:   Marcin Wojtas <mw@...ihalf.com>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     Andy Shevchenko <andy.shevchenko@...il.com>,
        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>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...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 - 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" <upstream@...ihalf.com>
Subject: Re: [net-next: PATCH v3 6/8] net: core: switch to fwnode_find_net_device_by_node()

czw., 28 lip 2022 o 21:16 Vladimir Oltean <olteanv@...il.com> napisał(a):
>
> On Thu, Jul 28, 2022 at 06:56:48PM +0200, Marcin Wojtas wrote:
> > There was a regression even for OF in v1, but after switching to
> > device_match_fwnode() it works indeed. Anyway patch v4 is imo useful,
> > I'll only reword the commit message.
>
> Do you mean patch 4 or patch v4? If patch 4, of course it's useful, but

Patch 4/8 in v4 :) I'm working on it right now to submit asap.

> not for avoiding a regression with OF (case in which I drop all my claims
> made earlier about fw_find_net_device_by_node), but rather to actually

Change in the mvpp2 driver:
-       dev->dev.of_node = port_node;
+       device_set_node(&dev->dev, port_fwnode);
is desired and correct anyway, so as a low-cost change I think it can
be included in this series (which is in fact preparation-to-ACPI
support). I will update the commit message. accordingly.

> get something working with actual ACPI (although perhaps not in this
> series, you'll need to add ACPI IDs in the mv88e6xxx driver some time

v1 added all of this, but we agreed that ACPI-specific bits should be
sent separately later, after extending the ACPI Specification.

> later as well, maybe you could focus this series just on converting DSA
> to play nice with fwnodes). If you're already thinking about the v4 of
> this patch set, I'll respond to that in a separate email shortly.