linux-kernel - Re: [PATCH] x86 - Make CONFIG_OLPC dependent on CONFIG_MGEODE

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Date:	Tue, 11 Nov 2008 15:04:06 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Jordan Crouse <jordan.crouse@....com>,
	Andres Salomon <dilinger@...ian.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86 - Make CONFIG_OLPC dependent on CONFIG_MGEODE_LX


* Takashi Iwai <tiwai@...e.de> wrote:

> At Tue, 11 Nov 2008 14:53:06 +0100,
> Ingo Molnar wrote:
> > 
> > 
> > * Takashi Iwai <tiwai@...e.de> wrote:
> > 
> > > At Tue, 11 Nov 2008 13:54:02 +0100,
> > > Ingo Molnar wrote:
> > > > 
> > > > 
> > > > * Takashi Iwai <tiwai@...e.de> wrote:
> > > > 
> > > > > The OLPC-specpfic codes require geode_gpio_*() functions although
> > > > > these functions are defined only with CONFIG_MGEODE_LX=y.
> > > > > Add a proper dependency to fix build errors.
> > > > > 
> > > > > Signed-off-by: Takashi Iwai <tiwai@...e.de>
> > > > 
> > > > hm, could you please send a .config that shows the build errors?
> > > 
> > > Here it is.  It's for today's linux-next.
> > 
> > hm, which tree did that build failure in linux-next originate from? 
> > Your config builds fine here with the latest x86 tree.
> 
> Ah, sorry, forgot to mention that the build error comes from the
> latest ALSA code.  It contains an OLPC-specific code that is enabled
> via CONFIG_OLPC like:
> 
> 	snd-cs5535audio-$(CONFIG_OLPC) += cs5535audio_olpc.o
> 
> where this includes geode_gpio_*() calls.
> 
> Of course, I can add an if in Makefile or create a new Kconfig, but 
> since asm/olpc.h itself includes asm/geode.h and contains 
> geode_gpio*() calls, it would be a proper fix to make CONFIG_OLPC 
> dependent on geode.

ah, okay, agreed - i was worried whether this is something affecting 
v2.6.28 or slipping through our testing before commits hit linux-next.

I've queued up your fix in tip/x86/kconfig, thanks Takashi!

	Ingo
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