linux-kernel - Re: fake config option w/kbuild?

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Message-ID: <20070317233356.GL752@stusta.de>
Date:	Sun, 18 Mar 2007 00:33:56 +0100
From:	Adrian Bunk <bunk@...sta.de>
To:	Kumar Gala <galak@...nel.crashing.org>
Cc:	Sam Ravnborg <sam@...nborg.org>,
	Roman Zippel <zippel@...ux-m68k.org>,
	Linux Kernel list <linux-kernel@...r.kernel.org>
Subject: Re: fake config option w/kbuild?

On Thu, Mar 15, 2007 at 03:08:47PM -0500, Kumar Gala wrote:
> 
> On Mar 15, 2007, at 2:12 PM, Adrian Bunk wrote:
> 
> >On Thu, Mar 15, 2007 at 10:19:03AM -0500, Kumar Gala wrote:
> >>...
> >>My initial question is that I don't want anyone using CONFIG_QE_83xx
> >>or CONFIG_QE_85xx in code, the second part is if there is a way to
> >>remove duplicating the QE_83xx/QE_85xx options down in platform/8 
> >>{3,5}
> >>xx/Kconfig.
> >
> >
> >What about the following solution:
> >
> >
> >arch/powerpc/Kconfig.qe:
> >
> ><--  snip  -->
> >
> >config MACH_SUPPORTS_QE
> >	bool
> >
> >config QE
> >	bool "QUICC Engine Support"
> >	depends on MACH_SUPPORTS_QE
> >	help
> >	  ...
> >
> ><--  snip  -->
> >
> >
> >arch/powerpc/platforms/83xx/Kconfig:
> >
> ><--  snip  -->
> >
> >...
> >source arch/powerpc/Kconfig.qe
> >
> >config PPC_MPC836x
> >        bool
> >	select MACH_SUPPORTS_QE
> >	...
> >....
> >
> ><--  snip  -->
> 
> Not sure this helps since I end up having to source arch/powerpc/ 
> Kconfig.qe from both arch/powerpc/platforms/83xx/Kconfig & arch/ 
> powerpc/platforms/85xx/Kconfig and then mconf grips about having  
> already scanned Kconfig.qe.


Sorry, my fault that I didn't test it myself before suggesting it.

It seems there is no solution for both not duplicating the options and 
getting them in the desired menu.


> - k

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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