linux-kernel - Re: [PATCH net-next v5 01/13] net: phy: initialize the port support based on the PHY's for OF ports

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Message-ID: <3a9a158f-bb17-43fd-80ce-1d70839f795a@kernel.org>
Date: Wed, 11 Feb 2026 10:36:34 +0100
From: "Christophe Leroy (CS GROUP)" <chleroy@...nel.org>
To: Maxime Chevallier <maxime.chevallier@...tlin.com>, 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>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 thomas.petazzoni@...tlin.com, 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,
 Romain Gantois <romain.gantois@...tlin.com>,
 Daniel Golle <daniel@...rotopia.org>,
 Dimitri Fedrau <dimitri.fedrau@...bherr.com>
Subject: Re: [PATCH net-next v5 01/13] net: phy: initialize the port support
 based on the PHY's for OF ports



Le 05/02/2026 à 10:23, Maxime Chevallier a écrit :
> With the phy_port infrastructure came an ethernet-connector binding,
> allowing to represent the MDI of a PHY in devicetree. This allows
> specifying the mediums and pairs of a port.
> 
> Let's initialize the port's supported list based on what the PHY
> reports, so that we can then filter it with what the connector allows
> using.
> 
> Signed-off-by: Maxime Chevallier <maxime.chevallier@...tlin.com>

Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@...nel.org>

> ---
>   drivers/net/phy/phy_device.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
> index 8a3eb1839a3d..9b8eaac63b90 100644
> --- a/drivers/net/phy/phy_device.c
> +++ b/drivers/net/phy/phy_device.c
> @@ -3499,6 +3499,9 @@ static int of_phy_ports(struct phy_device *phydev)
>   
>   		port->parent_type = PHY_PORT_PHY;
>   		port->phy = phydev;
> +
> +		linkmode_copy(port->supported, phydev->supported);
> +
>   		err = phy_add_port(phydev, port);
>   		if (err) {
>   			phy_port_destroy(port);