linux-kernel - Re: [PATCH 4/4] ide: tighten checks on PCI BARs in ide_hwif

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Date:	Sat, 7 Jun 2008 01:12:19 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/4] ide: tighten checks on PCI BARs in
 ide_hwif_configure()

On Fri, 6 Jun 2008 23:41:26 +0200
Bartlomiej Zolnierkiewicz <bzolnier@...il.com> wrote:

> Alan has fixed PCI layer handling of PCI IDE in Compatibility mode so
> PCI BAR 0/1 (and/or 2/3) content reported by kernel should never be zero.

Providing you are in compatability mode - you might see 0 for a native
mode port that has not been assigned, and now and then a bios will lob
you one of those just to see what happens 8)
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