linux-kernel - Re: [PATCH net-next v4 09/13] net: phylink: Use phy_caps

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Message-ID: <350bb4f6-f4b5-44c3-a821-ac53c8641705@redhat.com>
Date: Thu, 6 Mar 2025 09:56:32 +0100
From: Paolo Abeni <pabeni@...hat.com>
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>, 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, linux-arm-kernel@...ts.infradead.org,
 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>,
 Oleksij Rempel <o.rempel@...gutronix.de>, Simon Horman <horms@...nel.org>,
 Romain Gantois <romain.gantois@...tlin.com>
Subject: Re: [PATCH net-next v4 09/13] net: phylink: Use phy_caps_lookup for
 fixed-link configuration

On 3/3/25 10:03 AM, Maxime Chevallier wrote:
> @@ -879,8 +880,10 @@ static int phylink_parse_fixedlink(struct phylink *pl,
>  	linkmode_copy(pl->link_config.advertising, pl->supported);
>  	phylink_validate(pl, pl->supported, &pl->link_config);
>  
> -	s = phy_lookup_setting(pl->link_config.speed, pl->link_config.duplex,
> -			       pl->supported, true);
> +	c = phy_caps_lookup(pl->link_config.speed, pl->link_config.duplex,
> +			    pl->supported, true);
> +	if (c)
> +		linkmode_and(match, pl->supported, c->linkmodes);

How about using only the first bit from `c->linkmodes`, to avoid
behavior changes?

Thanks!

Paolo