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

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Message-ID: <20080112074632.3ca72d27@laptopd505.fenrus.org>
Date:	Sat, 12 Jan 2008 07:46:32 -0800
From:	Arjan van de Ven <arjan@...radead.org>
To:	Ivan Kokshaysky <ink@...assic.park.msu.ru>
Cc:	Greg KH <greg@...ah.com>, Matthew Wilcox <matthew@....cx>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Greg KH <gregkh@...e.de>, linux-kernel@...r.kernel.org,
	Jeff Garzik <jeff@...zik.org>,
	linux-pci@...ey.karlin.mff.cuni.cz,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Martin Mares <mj@....cz>, Tony Camuso <tcamuso@...hat.com>,
	Loic Prylli <loic@...i.com>
Subject: Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver
 opt-in

On Sat, 12 Jan 2008 17:40:30 +0300
Ivan Kokshaysky <ink@...assic.park.msu.ru> wrote:
e.
> 
> > Ivan, you posted one a while ago, but never seemed to get any
> > confirmation if it helped or not.  Should I use that and drop
> > Arjan's?
> 
> Actually I'm strongly against Arjan's patch. First, it's based on
> assumption that the MMCONFIG thing is sort of fundamentally broken
> on some systems, but none of the facts we have so far does confirm
> that. And second, I really don't like the implementation as it breaks
> all non-x86 arches (or forces them to add a set of totally meaningless
> PCI functions).

no it doesn't!
Other arches need no changes.
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