From: "H. Peter Anvin" <hpa@zytor.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>, Ingo Molnar <mingo@elte.hu>,
Thomas Gleixner <tglx@linutronix.de>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86, cpu: Fix X86_FEATURE_NOPL
Date: Mon, 04 Oct 2010 14:21:33 -0700 [thread overview]
Message-ID: <4CAA455D.8000902@zytor.com> (raw)
In-Reply-To: <AANLkTimXj+5ixx=xoVYOCmM4+W6CGR1XOi6CHDTZzns0@mail.gmail.com>
On 10/04/2010 02:12 PM, Linus Torvalds wrote:
> On Mon, Oct 4, 2010 at 2:02 PM, H. Peter Anvin <hpa@zytor.com> wrote:
>>
>> Actually, cpu_has() depends on:
>> #if defined(CONFIG_X86_P6_NOP) || defined(CONFIG_X86_64)
>
> Ahh. Right you are. The place that depends on just P6_NOP is the
> default NOP choice logic in <asm/nops.h>
>
> But the end result ends up being the same: can we please clean this
> all up so that it isn't so confusing? Rather than add to the
> confusion?
>
Agreed that this should be cleaned up. However, in the meantime I'd
like to keep Borislav's patch in the tree since it makes the code
technically correct at least.
OK?
-hpa
next prev parent reply other threads:[~2010-10-04 21:22 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-03 9:37 NOPL on 32-bit Borislav Petkov
2010-10-03 14:43 ` H. Peter Anvin
2010-10-03 15:22 ` [PATCH] x86, cpu: X86_FEATURE_NOPL should be disabled on 32-bit only Borislav Petkov
2010-10-03 18:19 ` H. Peter Anvin
2010-10-03 20:11 ` Borislav Petkov
2010-10-03 22:22 ` H. Peter Anvin
2010-10-04 7:31 ` [PATCH] x86, cpu: Fix X86_FEATURE_NOPL Borislav Petkov
2010-10-04 20:36 ` [tip:x86/cpu] " tip-bot for Borislav Petkov
2010-10-05 9:47 ` Borislav Petkov
2010-10-05 16:30 ` H. Peter Anvin
2010-10-05 16:53 ` Borislav Petkov
2010-10-04 20:47 ` [PATCH] " Linus Torvalds
2010-10-04 21:02 ` H. Peter Anvin
2010-10-04 21:12 ` Linus Torvalds
2010-10-04 21:21 ` H. Peter Anvin [this message]
2010-10-04 21:48 ` Borislav Petkov
2010-10-04 21:50 ` H. Peter Anvin
2010-10-04 21:53 ` H. Peter Anvin
2010-10-05 6:19 ` Borislav Petkov
2010-10-04 22:17 ` Hugh Dickins
2010-10-04 22:19 ` H. Peter Anvin
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