V4: [PATCH] x86: Install <sys/platform/x86.h> [BZ #26124]

Florian Weimer fweimer@redhat.com
Wed Jun 24 14:33:49 GMT 2020


* H. J. Lu:

> Here is the updated patch with
>
>  -- Macro: int HAS_CPU_FEATURE (NAME)
>      This macro returns a nonzero value (true) if the processor has the
>      feature NAME.
>
>  -- Macro: int CPU_FEATURE_USABLE (NAME)
>      This macro returns a nonzero value (true) if the processor has the
>      feature NAME and the feature is supported by the operating system.

This is indeed less confusing.  Thanks.

I'm still convinced we have a real use case for HAS_CPU_FEATURE.

Does anyone else want to comment on this?

Thanks,
Florian



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