linux-kernel - Re: [patch 2/2] PNP: don't check disabled PCI BARs for conflicts in quirk_system_pci

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Date:	Tue, 30 Sep 2008 22:48:26 +0200
From:	Rene Herman <rene.herman@...access.nl>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	Bjorn Helgaas <bjorn.helgaas@...com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Len Brown <lenb@...nel.org>, Frans Pop <elendil@...net.nl>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-pci@...r.kernel.org, linux-acpi@...r.kernel.org,
	Adam Belay <abelay@....edu>, Avuton Olrich <avuton@...il.com>,
	Karl Bellve <karl.bellve@...ssmed.edu>,
	Willem Riede <wriede@...de.org>,
	Matthew Hall <mhall@...omputing.net>,
	Sam Ravnborg <sam@...nborg.org>
Subject: Re: [patch 2/2] PNP: don't check disabled PCI BARs for conflicts
 in quirk_system_pci_resources()

On 30-09-08 21:44, Linus Torvalds wrote:

> On Tue, 30 Sep 2008, Rene Herman wrote:

>> Yes, I also get that oops but other than that, both link order versions you
>> sent out work -- ie, booting with acpi=noirq gets me to a functional system
>> with the quirk having run for PNP0c02 (acpi=off disables all of PNP0c02) and
>> doing its job.
> 
> Ok. But that means that the last patch I sent out - the one that _only_ 
> changes the order for PnP itself, and moves pnpacpi_init and pnpbios_init 
> to be fs_initcalls - should also work, and have none of he other 
> interactions. Yes?

Yes.

I am fine on current mainline and with this seem to still be fine, with 
or without the quirk changes (*) applied.

(*) http://marc.info/?l=linux-kernel&m=122280330516865&w=2

Frans Pop will need something like those quirk changes on top to have 
his machine stop yelling at him -- assuming it actually works for him 
that is (which it should I guess, but it's not been tested by him yet).

The pci_start == 0 version, attached for convenience and also still 
available from the bugzilla:

http://bugzilla.kernel.org/show_bug.cgi?id=11550

is still the minimal version for Frans' issue.

(I see there are multiple copies of messages that I sent in that marc 
archive. Seem to again be experiencing severe email trouble since I'm 
also not getting back most messages that I see there. Anyways, if you 
get multiple copies, sorry, can't help it it seems, and I need to be 
away after this).

Rene.

View attachment "0001-PNP-avoid-checking-unitialized-BARs-for-conflicts.patch" of type "text/plain" (964 bytes)