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

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Date:	Tue, 8 Jan 2008 14:38:14 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Bodo Eggert <7eggert@....de>
Cc:	Bodo Eggert <7eggert@....de>, "H. Peter Anvin" <hpa@...or.com>,
	Christer Weinigel <christer@...nigel.se>,
	Ingo Molnar <mingo@...e.hu>, "David P. Reed" <dpreed@...d.com>,
	Rene Herman <rene.herman@...il.com>,
	Paul Rolland <rol@...917.net>, Pavel Machek <pavel@....cz>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
	rol@...be.net
Subject: Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override.

> As long as there is no port 80 card or a similar device using it. If 
> there is a port 80 card, ISA acess needing the delay does break

Such cards are very unusual on ISA machines and it hasn't been a problem
in fifteen years. All the alternatives are vastly higher risk
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