On Fri, 11 Jul 2025, Arnd Bergmann wrote:

> On Fri, Jul 11, 2025, at 16:55, Ilpo Järvinen wrote:
> > On Wed, 9 Jul 2025, Arnd Bergmann wrote:
> >> index b76157b35296..e9e1c3268373 100644
> >> --- a/drivers/platform/x86/lenovo/Kconfig
> >> +++ b/drivers/platform/x86/lenovo/Kconfig
> >> @@ -250,8 +250,7 @@ config LENOVO_WMI_GAMEZONE
> >>  	depends on ACPI_WMI
> >>  	depends on DMI
> >>  	select ACPI_PLATFORM_PROFILE
> >> -	select LENOVO_WMI_EVENTS
> >> -	select LENOVO_WMI_HELPERS
> >> +	select LENOVO_WMI_TUNING
> >
> > Why did you remove the other two?
> >
> > Do select propagate properly these days across another select?
> 
> Yes, as far as I know it has always done this, with the one
> exception that it does not propagate when trying to select
> another symbol that has missing dependencies
> 
> > I was under impression they don't which is one of the reasons
> > use of select is discouraged.
> 
> I have seen that mentioned before in commit logs, but I
> think this was a misunderstanding. Using 'select' is still
> discouraged, but for other reasons:
> 
> - complexity quickly gets out of hand when selecting something
>   that has other dependencies, as the driver selecting them
>   must duplicate all those dependencies and keep them in sync

Okay, thanks for these clarifications.

I think I'll take this patch but change it to still keep the other selects 
as wmi-gamezone.c is directly using those too anyway.

> - mixing 'depends on' and 'select' for the same dependency
>   in different drivers tends to cause dependency loops
> 
> - selecting user-visible symbols has side-effects if another
>   symbol depends on that, e.g. the "select I2C" in some subsystems
>   causes the I2C submenu to appear.
> 
>     Arnd
> 

-- 
 i.