linux-kernel - Re: [PATCH net-next 07/13] net: phy: Represent PHY-less SFP modules with phy

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Message-ID: <5045774.GXAFRqVoOG@fw-rgant>
Date: Wed, 28 Jan 2026 16:54:43 +0100
From: Romain Gantois <romain.gantois@...tlin.com>
To: davem@...emloft.net, Andrew Lunn <andrew@...n.ch>,
 Jakub Kicinski <kuba@...nel.org>, Eric Dumazet <edumazet@...gle.com>,
 Paolo Abeni <pabeni@...hat.com>, Russell King <linux@...linux.org.uk>,
 Heiner Kallweit <hkallweit1@...il.com>,
 Maxime Chevallier <maxime.chevallier@...tlin.com>
Cc: Maxime Chevallier <maxime.chevallier@...tlin.com>, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, thomas.petazzoni@...tlin.com,
 Christophe Leroy <christophe.leroy@...roup.eu>,
 Herve Codina <herve.codina@...tlin.com>,
 Florian Fainelli <f.fainelli@...il.com>,
 Vladimir Oltean <vladimir.oltean@....com>,
 Köry Maincent <kory.maincent@...tlin.com>,
 Marek Behún <kabel@...nel.org>,
 Oleksij Rempel <o.rempel@...gutronix.de>,
 Nicolò Veronese <nicveronese@...il.com>,
 Simon Horman <horms@...nel.org>, mwojtas@...omium.org,
 Daniel Golle <daniel@...rotopia.org>,
 Dimitri Fedrau <dimitri.fedrau@...bherr.com>
Subject:
 Re: [PATCH net-next 07/13] net: phy: Represent PHY-less SFP modules with
 phy_port

On Tuesday, 27 January 2026 14:41:55 CET Maxime Chevallier wrote:
> Now that th SFP bus infrastructure notifies when PHY-less modules are

There's a typo here.

> connected, we can create a phy_port to represent it. Instead of letting
> the SFP subsystem handle that, the Bus' upstream is in charge of
> maintaining that phy_port and register it to the topology, as the
> upstream (in this case a phy device) is directly interacting with the
> underlying net_device.
> 
> Add a phy_caps helper alongside to get the achievable modes on this

Alongside what?

Thanks,

-- 
Romain Gantois, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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