linux-kernel - Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override

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Message-ID: <20071230220311.GE31386@elte.hu>
Date:	Sun, 30 Dec 2007 23:03:11 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Rene Herman <rene.herman@...access.nl>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	dpreed@...d.com, Islam Amer <pharon@...il.com>, hpa@...or.com,
	Pavel Machek <pavel@....cz>, Ingo Molnar <mingo@...hat.com>,
	Andi Kleen <andi@...stfloor.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override


* Alan Cox <alan@...rguk.ukuu.org.uk> wrote:

> On Sun, 30 Dec 2007 21:46:50 +0100
> Ingo Molnar <mingo@...e.hu> wrote:
> 
> > well, using io_delay=udelay is not 'blindly disabling'. io_delay=none 
> > would be the end goal, once all _p() API uses are eliminated by 
> > transformation. 
> 
> io_delay = none is not the end goal. Correctness is the end goal.

the end goal will be for io_delay=none to be a NOP, because nothing will 
use the _p() ops anymore.

	Ingo
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