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SubjectRe: [PATCH] mm: add config NUMA stub to all architectures
On Fri, Feb 17, 2012 at 05:32:10PM +0400, Konstantin Khlebnikov wrote:
> Stephen Rothwell wrote:
>> Hi Konstantin,
>>
>> On Fri, 17 Feb 2012 16:08:15 +0400 Konstantin Khlebnikov<khlebnikov@openvz.org> 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.
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.

Sam


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