linux-kernel - Re: [PATCH V2] x86: use enum cpuid

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Message-ID: <56A14CC2.7090607@zytor.com>
Date:	Thu, 21 Jan 2016 13:25:22 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Borislav Petkov <bp@...en8.de>
Cc:	Huaitong Han <huaitong.han@...el.com>, tglx@...utronix.de,
	mingo@...hat.com, david.vrabel@...rix.com, rusty@...tcorp.com.au,
	x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2] x86: use enum cpuid_leafs instead of magic numbers

On 01/21/16 13:21, Borislav Petkov wrote:
> On Thu, Jan 21, 2016 at 01:04:57PM -0800, H. Peter Anvin wrote:
>> I'm wondering, though, if it wouldn't be better to turn these into
>> macros so that they can be used in assembly code. That way the
>> definitions can be interspersed with the X86_FEATURE_ definitions,
>> too.
> 
> What concrete use case do you have in mind, i.e., example?
> 

See X86_CAPABILITY in head_32.S for example.

	-hpa