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

[Konstantin Khlebnikov]

Stephen Rothwell wrote:
> Hi Konstantin,
>
> On Fri, 17 Feb 2012 16:08:15 +0400 Konstantin Khlebnikov<khlebnikov@xxxxxxxxxx>  wrote:
> > Config NUMA must be defined for all architectures,
> > otherwise IS_ENABLED(CONFIG_NUMA) does not work.
> > Some arch-specific Kconfig already has this stub.
> > This patch adds it to all remaining.
>
> Why not add it somewhere generic (like mm/Kconfig, maybe) and then it can
> be removed from the architecture specific places over time (if necessary
> - I am pretty sure it is ok to have it there twice)?

Different architectures has different dependencies for NUMA.

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.
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