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

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Message-ID: <20071210133854.GB12913@linux-mips.org>
Date:	Mon, 10 Dec 2007 13:38:54 +0000
From:	Ralf Baechle <ralf@...ux-mips.org>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Yoichi Yuasa <yoichi_yuasa@...peaks.co.jp>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...e.de>,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Subject: Re: Please revert: PCI: fix IDE legacy mode resources

On Mon, Dec 10, 2007 at 03:29:22PM +1100, Benjamin Herrenschmidt wrote:

> To: Alan Cox <alan@...rguk.ukuu.org.uk>,
> 	Linus Torvalds <torvalds@...ux-foundation.org>
> Cc: Ralf Baechle <ralf@...ux-mips.org>,
> 	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>,
> 	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
> Subject: Re: Please revert: PCI: fix IDE legacy mode resources
> Content-Type: text/plain
> 
> powerpc: Fix IDE legacy vs. native fixups
> 
> PowerMac and CHRP/BriQ platforms have quirks to switch some IDE
> controllers from legacy mode to fully native mode. Those quirks
> however will not work properly anymore due to a change to the
> generic code to better handle legacy IDE resources.
> 
> This fixes it by moving those quirk to "early" quirks (so they
> run before resources are probed for the devices) and clearing
> all BARs after the conversion to force a reallocation of sane
> values.
> 
> Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>
> ---
> 
> To be totally correct, we still need to also revert
> commit fd6e732186ab522c812ab19c2c5e5befb8ec8115 which
> is bogus.
> 
> Linus, can you still apply this to 2.6.24 ? I would also like the
> above (fd6e...) reverted as so far, nobody have come up with a demonstration
> that it's not bogus.

For the revert:

Acked-by: Ralf Baechle <ralf@...ux-mips.org>

I'll work with Yoichi to find another solution.

  Ralf
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