linux-kernel - Re: [PATCH] mm: add config NUMA stub to all architectures

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Date:	Sat, 18 Feb 2012 10:39:14 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	Konstantin Khlebnikov <khlebnikov@...nvz.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: add config NUMA stub to all architectures

Hi Sam,

On Fri, 17 Feb 2012 14:44:04 +0100 Sam Ravnborg <sam@...nborg.org> wrote:
>
> > Seems like Kconfig allow config option duplication, but it use default state from first.
> > If we add "config NUMA\n def_bool n" somewhere in generic Kconfig, default will be n if
> > Kconfig see this declaration first.
> Correct.
> And as n is default there is no need to specify it.
> But please add a help text that explain the symbol - even if it is not
> visible in menuconfig.

So does that mean that a simple

config NUMA
	bool
	help
		some help text

in mm/Kconfig will have no effect on the defaults and dependencies if
"config NUMA" is specified elsewhere?  (except to add the needed
__enabled_CONFIG_NUMA defines, of course).  If that is the case, then
that is what we should add, right?

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

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