linux-kernel - Re: [PATCH v5 net-next 08/13] net: phy: marvell-88q2xxx: add support for temperature sensor

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Message-ID: <c9866a56-d82e-4a3d-b335-db22c0413416@lunn.ch>
Date: Thu, 1 Feb 2024 14:27:28 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Guenter Roeck <linux@...ck-us.net>
Cc: Dimitri Fedrau <dima.fedrau@...il.com>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Jean Delvare <jdelvare@...e.com>,
	Stefan Eichenberger <eichest@...il.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-hwmon@...r.kernel.org
Subject: Re: [PATCH v5 net-next 08/13] net: phy: marvell-88q2xxx: add support
 for temperature sensor

> > +#ifdef CONFIG_HWMON
> 
> HWMON is tristate, so this may be problematic if the driver is built
> into the kernel and hwmon is built as module.

There should be Kconfig in addition to this, e.g.

config MAXLINEAR_GPHY
        tristate "Maxlinear Ethernet PHYs"
        select POLYNOMIAL if HWMON
        depends on HWMON || HWMON=n
        help
          Support for the Maxlinear GPY115, GPY211, GPY212, GPY215,
          GPY241, GPY245 PHYs.

So its forced to being built in, or not built at all.

	Andrew