linux-kernel - Re: a7839e96 (PNP: increase max resources) breaks my ALSA intel8x0 sound card

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Message-ID: <alpine.LFD.1.00.0802011149160.3198@www.l.google.com>
Date:	Fri, 1 Feb 2008 11:50:13 +1100 (EST)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Robert Hancock <hancockr@...w.ca>
cc:	Andrew Morton <akpm@...ux-foundation.org>, avuton@...il.com,
	yakui.zhao@...el.com, shaohua.li@...el.com, bjorn.helgaas@...com,
	trenn@...e.de, linux-kernel@...r.kernel.org,
	alsa-devel@...a-project.org
Subject: Re: a7839e96 (PNP: increase max resources) breaks my ALSA intel8x0
 sound card



On Thu, 31 Jan 2008, Robert Hancock wrote:
> 
> I think so. There was one objection that it introduced a dependency on pnpacpi
> loading after PCI bus enumeration, though.
> 
> Linus also suggested that pnpacpi could be marking the resources as "present
> but unused" so that drivers can request those regions but we still prevent
> dynamically assigning resources into them.

I _think_ that's what ACPI used to do before switching over to the PnPACPI 
thing, so I do think that "present but not reserved" approach is not just 
the right one, but also the (historically) tested one.

		Linus
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