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Date: Sat, 27 Sep 2008 12:21:45 +0100
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>, jbarnes@virtuousgeek.org,
       mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com,
       torvalds@linux-foundation.org, akpm@linux-foundation.org,
       arjan@linux.intel.com, linux-kernel@vger.kernel.org
Subject: Re: [patch] ioremap sanity check to catch mapping requests
 exceeding the BAR sizes
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> 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...