linux-kernel - Re: [PATCH 4/4] ACPI PCI slot detection driver

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Date:	Tue, 11 Mar 2008 09:56:37 -0700
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	linux-pci@...ey.karlin.mff.cuni.cz
Cc:	Matthew Wilcox <matthew@....cx>,
	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>,
	Alex Chiang <achiang@...com>, Greg KH <gregkh@...e.de>,
	Gary Hade <garyhade@...ibm.com>, warthog19@...lescrag.net,
	kristen.c.accardi@...el.com, rick.jones2@...com,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [PATCH 4/4] ACPI PCI slot detection driver

On Tuesday, March 11, 2008 6:28 am Matthew Wilcox wrote:
> On Tue, Mar 11, 2008 at 10:10:40PM +0900, Kenji Kaneshige wrote:
> > 1) I checked ACPI spec again and again, but I could not find any
> >    reason to add Fujitsu servers to quirks list. So I'd like you to
> >    add HP servers to the quirks list. I'll send the following patches
> >    followed by this e-mail.
>
> Alex pointed out that IBM interprets the spec the same way that HP does.
> Are there any other machines that follow the spec the same way that
> Fujitsu does?

So Kenji is arguing that _STA should be called before _SUN (iow that the _SUN 
value is bogus unless _STA indicates that the slot is powered)?  That seems 
harder for the user; often times you want to find a slot even if it's powered 
down & empty (say to add a new card)...  It looks like the current code won't 
provide a slot name on Fujitsu machines in this case, or am I missing 
something?

Thanks,
Jesse
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