linux-kernel - Re: [git patches] libata updates for 3.3

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Date:	Mon, 16 Jan 2012 12:21:20 -0800
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Matthew Garrett <mjg@...hat.com>
Cc:	Lin Ming <ming.m.lin@...el.com>, Jeff Garzik <jeff@...zik.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-ide@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [git patches] libata updates for 3.3

On Mon, Jan 16, 2012 at 12:02 PM, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
>>
>> http://www.codon.org.uk/~mjg59/tmp/ahci_quirk_cleanup.diff
>
> Hmm. This with just a setup option to enable it might well be good
> enough. No need for whitelists/blacklists, since we couldn't maintain
> those sanely anyway.

That patch doesn't work for me. I get a panic in ahci_enable_ahci,
looks like 'mmio' is bogus there (attempting to dereference 0x01ffe6).

I notice that the PIIX device doesn't have any MMIO at all, it's all
PIO. Maybe there is some "need to enable MMIO thing" too. Or maybe I
used the wrong PCI ID when I added it to the quirk table.

                       Linus
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