linux-kernel - Re: [PATCH 05/11] x86, mpx: add MPX to disaabled features

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Message-ID: <54664C0B.6070604@sr71.net>
Date:	Fri, 14 Nov 2014 10:38:03 -0800
From:	Dave Hansen <dave@...1.net>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>, hpa@...or.com
CC:	tglx@...utronix.de, mingo@...hat.com, x86@...nel.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	linux-ia64@...r.kernel.org, linux-mips@...ux-mips.org,
	qiaowei.ren@...el.com, dave.hansen@...ux.intel.com
Subject: Re: [PATCH 05/11] x86, mpx: add MPX to disaabled features

On 11/14/2014 09:56 AM, Sergei Shtylyov wrote:
>>   #define DISABLED_MASK6    0
>>   #define DISABLED_MASK7    0
>>   #define DISABLED_MASK8    0
>> -#define DISABLED_MASK9    0
>> +#define DISABLED_MASK9    (DISABLE_MPX)
> 
>    These parens are not really needed. Sorry to be a PITA and not saying
> this before.

One goal of the disabled features patch was to maintain parity with
required-features.h.  It declares things this way:

> #define REQUIRED_MASK3  (NEED_NOPL)
> #define REQUIRED_MASK4  (NEED_MOVBE)

So, no, those aren't strictly needed, but there is precedent for them
and they do no harm.  I think I'll leave them as-is.
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