linux-kernel - Re: DMABOUNCE in pci-rcar

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Message-ID: <CAErSpo5uHCOpMGxdbtBwvZEV0jNOBkBch0rG-VVwxdLJgCkUnA@mail.gmail.com>
Date:	Wed, 26 Feb 2014 14:02:57 -0700
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-arm <linux-arm-kernel@...ts.infradead.org>,
	Russell King <linux@....linux.org.uk>,
	linux-sh@...r.kernel.org,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Magnus Damm <damm@...nsource.se>,
	Ben Dooks <ben-linux@...ff.org>,
	Simon Horman <horms+renesas@...ge.net.au>
Subject: Re: DMABOUNCE in pci-rcar

On Wed, Feb 26, 2014 at 12:57 PM, Arnd Bergmann <arnd@...db.de> wrote:
> On Wednesday 26 February 2014 12:48:17 Bjorn Helgaas wrote:
>> On Mon, Feb 24, 2014 at 4:00 AM, Arnd Bergmann <arnd@...db.de> wrote:
>> > Hi Magnus,
>> >
>> > I noticed during randconfig testing that you enabled DMABOUNCE for the
>> > pci-rcar-gen2 driver as posted in this patch https://lkml.org/lkml/2014/2/5/30
>> >
>> > I didn't see the original post unfortunately, but I fear we have to
>> > revert it and come up with a better solution, ...
>>
>> Sounds like I should drop the following patches from my pci/host-rcar
>> branch for now?
>>
>>   PCI: rcar: Add DMABOUNCE support
>>   PCI: rcar: Enable BOUNCE in case of HIGHMEM
>>   PCI: rcar: Make the Kconfig dependencies more generic
>
> Sounds good to me. The last patch is actually fine, but you'll have to
> fix the context to apply it without the other two.

OK, I dropped the DMABOUNCE and BOUNCE patches and force-updated my
"next" branch.

Bjorn
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