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Date: Fri, 29 Jul 2016 10:06:23 +1000
From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Cc: ksummit-discuss@lists.linuxfoundation.org, Dave Airlie <airlied@linux.ie>,
	"Nikula, Jani" <jani.nikula@linux.intel.com>,
	Grant Likely <grant.likely@linaro.org>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [Ksummit-discuss] [CORE TOPIC] (group) maintainership models
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Hi Alexandre,

On Fri, 29 Jul 2016 01:48:23 +0200 Alexandre Belloni <alexandre.belloni@free-electrons.com> wrote:
>
> On 28/07/2016 at 10:44:23 +0200, Arnd Bergmann wrote :
> > Some subsystems have essential drivers without which a platform cannot
> > work (clock, irqchip, reset, ...) and those often don't allow the
> > driver to be user-selectable at all. I'd like to see more of those
> > get enabled for COMPILE_TEST, but the Kconfig statement for this
> > is rather unintuitive:
> > 
> > config FOO
> > 	bool "foo driver" if COMPILE_TEST && !ARCH_FOO
> > 	default ARCH_FOO
> > 	depends on GPIOLIB && I2C && OF && WHATEVER
> > 
> > This becomes a silent always-on symbol if the platform is used,
> > and user-selectable on every other platform with COMPILE_TEST.
> >   
> 
> Note that some maintainers prefer having the symbol selected directly
> from ARCH_FOO or SOC_FOO instead of defaulting to it which may be more
> explicit. I'm fine with both but my subsystem is not exactly essential
> ;)

You should avoid, if at all possible, selecting any symbol that has
dependencies ...

-- 
Cheers,
Stephen Rothwell