linux-kernel - Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in

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Message-ID: <20080130151538.GA1036@jurassic.park.msu.ru>
Date:	Wed, 30 Jan 2008 18:15:39 +0300
From:	Ivan Kokshaysky <ink@...assic.park.msu.ru>
To:	Matthew Wilcox <matthew@....cx>
Cc:	Greg KH <greg@...ah.com>, Arjan van de Ven <arjan@...radead.org>,
	Tony Camuso <tcamuso@...hat.com>,
	Grant Grundler <grundler@...isc-linux.org>,
	Loic Prylli <loic@...i.com>, Adrian Bunk <bunk@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Greg KH <gregkh@...e.de>, linux-kernel@...r.kernel.org,
	Jeff Garzik <jeff@...zik.org>,
	linux-pci@...ey.karlin.mff.cuni.cz, Martin Mares <mj@....cz>
Subject: Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver
	opt-in

On Tue, Jan 29, 2008 at 08:45:55PM -0700, Matthew Wilcox wrote:
> On Tue, Jan 29, 2008 at 05:19:55AM -0800, Greg KH wrote:
> > Matthew, with Arjan's patch, is anything that currently works now
> > broken?  Why do you feel it is somehow "wrong"?
> 
> lspci is broken.  It used to be able to access extended config space, and
> now can't unless it is patched to know about the sysfs flag to enable it.

There is also likely damage to Xorg for the very same reason.

Ivan.
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