Re: [PATCH] x86/mce: Simplify CPU vendor checks for AMD/Hygon and Intel/Zhaoxin

From: Borislav Petkov
Date: Tue Feb 22 2022 - 12:11:03 EST


Hi,

On Tue, Feb 22, 2022 at 10:42:25AM -0600, Carlos Bilbao wrote:
> the point is to simplify the code (as the patch stated).

But it doesn't simplify the code - it makes it obscure.

Also, your "simplification" breaks the moment you need to do something
for the one vendor but *not* for the other.

Because in such cases you'll have to do

if (mce_flags.amd_compatible && m->cpuvendor != X86_VENDOR_HYGON)

which makes me go, "huh what?!"

So no, that's not better.

--
Regards/Gruss,
Boris.

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