netdev - Re: [net-next PATCH v4 06/11] net: phy: Export some functions

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Message-ID: <aCWh48ckDDCttbe-@shell.armlinux.org.uk>
Date: Thu, 15 May 2025 09:12:19 +0100
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Sean Anderson <sean.anderson@...ux.dev>, netdev@...r.kernel.org,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
	upstream@...oha.com, Kory Maincent <kory.maincent@...tlin.com>,
	Simon Horman <horms@...nel.org>,
	Christian Marangi <ansuelsmth@...il.com>,
	linux-kernel@...r.kernel.org,
	Heiner Kallweit <hkallweit1@...il.com>
Subject: Re: [net-next PATCH v4 06/11] net: phy: Export some functions

On Wed, May 14, 2025 at 07:57:16PM -0700, Jakub Kicinski wrote:
> On Mon, 12 May 2025 12:10:08 -0400 Sean Anderson wrote:
> > Export a few functions so they can be used outside the phy subsystem:
> > 
> > get_phy_c22_id is useful when probing MDIO devices which present a
> > phy-like interface despite not using the Linux ethernet phy subsystem.
> > 
> > mdio_device_bus_match is useful when creating MDIO devices manually
> > (e.g. on non-devicetree platforms).
> > 
> > At the moment the only (future) user of these functions selects PHYLIB,
> > so we do not need fallbacks for when CONFIG_PHYLIB=n.
> 
> This one does not apply cleanly.

In any case, we *still* have two competing implementations for PCS
support, and the authors have been asked to work together, but there's
been no sign of that with both authors posting their patch sets within
the last week.

Plus, I had asked for the patches to be posted as RFC because I'm not
going to have time to review them for a while (you may have noticed a
lack of patches from myself - because I don't have time to post them
as I'm working on stuff directed by my employer.)

Sadly, being employed means there will be times that I don't have the
bandwidth to look at mainline stuff.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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