[PATCH] x86: Set RDRAND usable if CPU supports RDRAND

[Florian Weimer]

* H. J. Lu:

> On Fri, Dec 4, 2020 at 12:12 AM Florian Weimer <fweimer@redhat.com> wrote:
>>
>> * H. J. Lu via Libc-alpha:
>>
>> > Set RDRAND usable if CPU supports RDRAND.  Also check HAS_CPU_FEATURE
>> > instead of CPU_FEATURE_USABLE for FSGSBASE, LM and XSAVES since
>> > FSGSBASE/LM require kernel support and XSAVES is supervisor-mode only.
>>
>> I think the commit subject is misleading because the RDRAND part is a
>> glibc bug fix.  Rest looks okay to me.
>>
>> Thanks,
>
> I am checking the RDRAND fix as a separate patch.  I will submit a
> new patch with the tst-cpu-features-supports.c fix only.

Okay, thanks.  Feel free to check in both patches.

Florian
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