linux-kernel - Re: [PATCH -tip] x86: do_boot_cpu

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Date:	Wed, 22 Oct 2008 16:29:37 +0100 (BST)
From:	"Maciej W. Rozycki" <macro@...ux-mips.org>
To:	Cyrill Gorcunov <gorcunov@...il.com>
cc:	Ingo Molnar <mingo@...e.hu>, Glauber Costa <glommer@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH -tip] x86: do_boot_cpu - check if we have ESR register

On Wed, 22 Oct 2008, Cyrill Gorcunov wrote:

> We should touch ESR register if only we have it.
> The patch fixes the problem mentoined here
> 
> 	http://lkml.org/lkml/2008/10/17/147
> 
> Signed-off-by: Cyrill Gorcunov <gorcunov@...il.com>
> CC: Glauber Costa <glommer@...il.com>
> ---

Acked-by: Maciej W. Rozycki <macro@...ux-mips.org>

 Note this is one of the few places you can actually write to the ESR 
unconditionally -- there is another similar piece of code elsewhere in 
this file which could get adjusted to look the same as this one after your 
change.  Thanks for this fix.

  Maciej
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