linux-kernel - Re: [patch] ioremap sanity check to catch mapping requests exceeding the BAR sizes

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Message-ID: <48DE46AB.8070505@goop.org>
Date:	Sat, 27 Sep 2008 07:43:55 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	Suresh Siddha <suresh.b.siddha@...el.com>,
	jbarnes@...tuousgeek.org, mingo@...e.hu, tglx@...utronix.de,
	hpa@...or.com, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, arjan@...ux.intel.com,
	linux-kernel@...r.kernel.org
Subject: Re: [patch] ioremap sanity check to catch mapping requests exceeding
 the BAR sizes

Alan Cox wrote:
>> Any attempt to use ioremap on memory is a bug, so you should warn about
>> that too.
>>     
>
> We use it to ioremap things like the BIOS...

Yeah, that's fine.  I mean using ioremap on system memory is a bug.

    J
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