linux-kernel - Re: [PATCH] apple-gmux: Fix kconfig dependencies

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Date:	Mon, 23 Jul 2012 08:44:27 -0500
From:	Seth Forshee <seth.forshee@...onical.com>
To:	Matthew Garrett <mjg@...hat.com>
Cc:	platform-driver-x86@...r.kernel.org,
	Arun Raghavan <arun.raghavan@...labora.co.uk>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] apple-gmux: Fix kconfig dependencies

On Mon, Jul 23, 2012 at 02:30:10PM +0100, Matthew Garrett wrote:
> > I'm looking at Andreas's code for switcharoo support, and something I
> > want to do along with it is make apple-gmux not dependent on backlight
> > support (i.e. you can still build switcharoo support if
> > BACKLIGHT_CLASS_DEVICE is disabled). I'm assuming this patch as a
> > prerequisite. But things do get really monstrously ugly, so if there's a
> > cleaner way to enforce this that I haven't found I'd love to hear about
> > it.
> 
> Why do you want to support that case? One of the problems we have with 
> the kernel at present is that it's trivial to come up with non-sensical 
> configurations. I can't think of a single case where you'd want the gmux 
> support without also having the backlight support code.

Just because there isn't strictly any reason that the switching code
needs to depend on backlight support. But yes, I can't think of a good
reason why anyone would want this configuration. I won't mess with it
then.

Seth

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