Re: [PATCH 05/11] x86, mpx: add MPX to disaabled features
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- To: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>, hpa@xxxxxxxxx
- Subject: Re: [PATCH 05/11] x86, mpx: add MPX to disaabled features
- From: Dave Hansen <dave@xxxxxxxx>
- Date: Fri, 14 Nov 2014 10:38:03 -0800
- Cc: tglx@xxxxxxxxxxxxx, mingo@xxxxxxxxxx, x86@xxxxxxxxxx, linux-mm@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxx, qiaowei.ren@xxxxxxxxx, dave.hansen@xxxxxxxxxxxxxxx
- In-reply-to: <5466425D.1060100@cogentembedded.com>
- List-id: <linux-ia64.vger.kernel.org>
- References: <20141114151816.F56A3072@viggo.jf.intel.com> <20141114151823.B358EAD2@viggo.jf.intel.com> <5466425D.1060100@cogentembedded.com>
- User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0
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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