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

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On Thu, Feb 01, 2024 at 05:23:49PM +0100, Dimitri Fedrau wrote:
> Am Thu, Feb 01, 2024 at 05:39:25AM -0800 schrieb Guenter Roeck:
> > On 2/1/24 05:27, Andrew Lunn wrote:
> > > > > +#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.
> > > 
> > 
> > Even then it should be "#if IS_ENABLED(HWMON)" in the code.
> > 
> >
> If using "#if IS_ENABLED(HWMON)" do I have to add the dependency in
> the KConfig file ? When looking at other PHY drivers, they do.

Please follow what other drivers do. Its easy to break the build,
resulting is undefined symbols. What we have now works.

	Andrew	  




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