linux-kernel - Re: Commit 07f9b61 breaks systems that don't implement a

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Date:	Sat, 5 Oct 2013 18:57:32 +0800
From:	Ethan Zhao <ethan.kernel@...il.com>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ethan Zhao <ethan.zhao@...cle.com>
Subject: Re: Commit 07f9b61 breaks systems that don't implement a _CBA method

On Sat, Oct 5, 2013 at 7:55 AM, Yinghai Lu <yinghai@...nel.org> wrote:
> On Fri, Oct 4, 2013 at 3:11 PM, Bjorn Helgaas <bhelgaas@...gle.com> wrote:
>> On Thu, Oct 3, 2013 at 7:18 PM, Hedi Berriche <hedi@....com> wrote:
>
>> It's regrettable that the code is so subtle.  The obvious thing to do
>> would be to check for _CBA, and if it doesn't exist, look for an MCFG
>> entry.  But for various historical reasons, the code is a mess, and we
>> haven't figured out how to safely simplify it.
>>
>> Ethan, Yinghai, any objections to reverting 07f9b61?
>
> yes, that is right solution.
> --
Thanks, pull it out from the trap.

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