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Message-ID: <20091216185627.2ea4f3d8@jbarnes-piketon>
Date:	Wed, 16 Dec 2009 18:56:27 -0800
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	linux-pci@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
	blofeldus@...oo.com, Olof Johansson <olof@...om.net>
Subject: Re: [PATCH] cardbus: Add a fixup hook and fix powerpc

On Wed, 09 Dec 2009 17:52:13 +1100
Benjamin Herrenschmidt <benh@...nel.crashing.org> wrote:

> The cardbus code creates PCI devices without ever going through the
> necessary fixup bits and pieces that normal PCI devices go through.
> 
> There's in fact a commented out call to pcibios_fixup_bus() in there,
> it's commented because ... it doesn't work.
> 
> I could make pcibios_fixup_bus() do the right thing on powerpc easily
> but I felt it cleaner instead to provide a specific hook
> pci_fixup_cardbus for which a weak empty implementation is provided
> by the PCI core.
> 
> This fixes cardbus on powerbooks and probably all other PowerPC
> platforms which was broken completely for ever on some platforms and
> since 2.6.31 on others such as PowerBooks when we made the DMA ops
> mandatory (since those are setup by the fixups).
> 
> Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>

Ah the link failure was my fault.  I had fixed up the conflict
incorrectly.  It's applied now.

-- 
Jesse Barnes, Intel Open Source Technology Center
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