linux-kernel - Re: [PATCH v2] x86: Early-boot serial I/O support

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Message-ID: <4C396E6D.4030408@cs.helsinki.fi>
Date:	Sun, 11 Jul 2010 10:10:37 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	Cyrill Gorcunov <gorcunov@...il.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
	Yinghai Lu <yinghai@...nel.org>
Subject: Re: [PATCH v2] x86: Early-boot serial I/O support

On 07/10/2010 02:55 PM, Cyrill Gorcunov wrote:
>> I rather wonder -- can't we use cpu_relax() from processor.h? Or there
>> is some type conflicts?

H. Peter Anvin wrote:
> Probably.  The boot environment is pretty different, and not sharing
> header files where we don't need to because of shared data structures is
> probably a good idea.

I did try it but got bunch of compile errors and figured I was not 
supposed to use it.

			Pekka
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