linux-kernel - Re: [net-next RFC PATCH v3 1/4] net: phy: pass PHY driver to .match_phy

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Z-UxZMJR7-Hp_7d0@shell.armlinux.org.uk>
Date: Thu, 27 Mar 2025 11:07:16 +0000
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Christian Marangi <ansuelsmth@...il.com>
Cc: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Marek Behún <kabel@...nel.org>,
	Eric Woudstra <ericwouds@...il.com>,
	Daniel Golle <daniel@...rotopia.org>, netdev@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [net-next RFC PATCH v3 1/4] net: phy: pass PHY driver to
 .match_phy_device OP

On Thu, Mar 27, 2025 at 12:35:01AM +0100, Christian Marangi wrote:
> Pass PHY driver pointer to .match_phy_device OP in addition to phydev.
> Having access to the PHY driver struct might be useful to check the
> PHY ID of the driver is being matched for in case the PHY ID scanned in
> the phydev is not consistent.
> 
> A scenario for this is a PHY that change PHY ID after a firmware is
> loaded, in such case, the PHY ID stored in PHY device struct is not
> valid anymore and PHY will manually scan the ID in the match_phy_device
> function.
> 
> Having the PHY driver info is also useful for those PHY driver that
> implement multiple simple .match_phy_device OP to match specific MMD PHY
> ID. With this extra info if the parsing logic is the same, the matching
> function can be generalized by using the phy_id in the PHY driver
> instead of hardcoding.
> 
> Suggested-by: Russell King (Oracle) <linux@...linux.org.uk>

Reviewed-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>

Please also update the email address in the suggested-by to match the
one in my reviewed-by for the next resend.

Thanks!

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!