linux-kernel - Re: [tip:x86/cpu] x86, cpu: Fix X86_FEATURE

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Date:	Tue, 5 Oct 2010 11:47:12 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	hpa@...or.com
Cc:	linux-tip-commits@...r.kernel.org, linux-kernel@...r.kernel.org,
	mingo@...hat.com, torvalds@...ux-foundation.org, ryan@...osecc.com,
	tglx@...utronix.de, hpa@...ux.intel.com
Subject: Re: [tip:x86/cpu] x86, cpu: Fix X86_FEATURE_NOPL

From: tip-bot for Borislav Petkov <bp@...en8.de>
Date: Mon, Oct 04, 2010 at 08:36:15PM +0000

> Commit-ID:  366d4a43b1a7a861c356a0e407c4f03f454d42ea
> Gitweb:     http://git.kernel.org/tip/366d4a43b1a7a861c356a0e407c4f03f454d42ea
> Author:     Borislav Petkov <bp@...en8.de>
> AuthorDate: Mon, 4 Oct 2010 09:31:27 +0200
> Committer:  H. Peter Anvin <hpa@...ux.intel.com>
> CommitDate: Mon, 4 Oct 2010 11:22:24 -0700
> 
> x86, cpu: Fix X86_FEATURE_NOPL
> 
> ba0593bf553c450a03dbc5f8c1f0ff58b778a0c8 cleared the aforementioned
> cpuid bit only on 32-bit due to various problems with Virtual PC. This
> somehow got lost during the 32- + 64-bit merge so restore the feature
> bit on 64-bit. For that, set it explicitly for non-constant arguments of
> cpu_has(). Update comment for future reference.
> 
> Signed-off-by: Borislav Petkov <bp@...en8.de>
> LKML-Reference: <20101004073127.GA20305@...ndog.tnic>
> Cc: Ryan O'Neill <ryan@...osecc.com>
> Cc: Linus Torvalds <torvalds@...ux-foundation.org>
> Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com>

tag it for -stable too?

-- 
Regards/Gruss,
Boris.
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