Messages in this thread | | | Date | Fri, 17 Feb 2012 12:30:37 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH] mm: add config NUMA stub to all architectures |
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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.
It would be better to teach IS_ENABLED() to handle this situation. I don't think there's a way of doing this with cpp :(
This limitation makes IS_ENABLED pretty dangerous, doesn't it? It makes it very easy to introduce build breakage with unexpected Kconfig combinations.
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