linux-kernel - Re: [PATCH 2/2] PCI: Only enable realloc auto when root bus has 64bit mmio

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Message-ID: <CAErSpo6G9Tb4_bqhrZLb3Om2U2FzOh16bPqEbMherLVh+oHf7A@mail.gmail.com>
Date:	Mon, 9 Dec 2013 14:05:49 -0700
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Joseph Salisbury <joseph.salisbury@...onical.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: Re: [PATCH 2/2] PCI: Only enable realloc auto when root bus has 64bit mmio

On Mon, Dec 9, 2013 at 1:44 PM, Yinghai Lu <yinghai@...nel.org> wrote:
> On Mon, Dec 9, 2013 at 12:20 PM, Bjorn Helgaas <bhelgaas@...gle.com> wrote:
>
>> Yes, I agree.  I didn't say it would be simple.  The quick fix would
>> be easy for now, but adding nonsensical code makes our lives harder
>> long into the future.
>
> If the old kernel is working, and user update kernel then we should
> not request them to append "pci=realloc=off" for booting.

I agree.  I would just prefer a better fix.

Bjorn
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