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Message-ID: <829f8c7d-c09b-4264-818a-3f7b047ec44f@lunn.ch>
Date: Sun, 18 Feb 2024 21:10:30 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Christian Marangi <ansuelsmth@...il.com>
Cc: "Russell King (Oracle)" <linux@...linux.org.uk>,
	Heiner Kallweit <hkallweit1@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Robert Marko <robimarko@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@....com>,
	Nipun Gupta <nipun.gupta@....com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Puneet Gupta <puneet.gupta@....com>,
	Abhijit Gangurde <abhijit.gangurde@....com>,
	Umang Jain <umang.jain@...asonboard.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [net-next RFC PATCH 1/6] net: phy: add support for defining
 multiple PHY IDs in PHY driver

> > > +	phy_dev_id = (struct mdio_device_id *)&phydev->dev_id;
> > 
> > Why this cast? Try to write code that doesn't need casts.
> > 
> 
> This cast is needed to keep the dev_id const in the phy_device struct so
> that other are warned to not modify it and should only be handled by
> phy_probe since it's the one that fills it.
> 
> Alternative is to drop const and drop the warning.

Can you propagate the const. Make phy_dev_id point to a const?

    Andrew

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