linux-kernel - Re: Please revert: PCI: fix IDE legacy mode resources

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Message-ID: <20071210132635.GA12913@linux-mips.org>
Date:	Mon, 10 Dec 2007 13:26:35 +0000
From:	Ralf Baechle <ralf@...ux-mips.org>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Yoichi Yuasa <yoichi_yuasa@...peaks.co.jp>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...e.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: Please revert: PCI: fix IDE legacy mode resources

On Sun, Dec 09, 2007 at 06:24:51PM +1100, Benjamin Herrenschmidt wrote:

> If that is the case though (that is it can't issue low ioport cycles),
> how would have the fd6e7321...  worked in the first place ? Hrm...
> strange. My understanding is that all that patch does is put junk in the
> pci_dev resource structures :-) Maybe that's enough to cause the PCI
> layer later on to be unhappy about them and reassign the BARs to some
> place that works ? In which case, you are right, a better approach is a
> quirk on this specific platform, or even better, mark 0...0x10000000
> busy in ioport_resources and let the generic code clash & re-assign...
> 
> I must admit I'm a bit confused tho...
> 
> Anyway, so far, nobody is arguing in favor of keeping this patch in nor
> so far trying and explanation on why it wouldn't be totally bogus, so I
> suggest we revert it :-)

I certainly don't oppose at this point.

  Ralf
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