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SubjectRe: [PATCH] PCI: Remove not needed check in disable aspm link
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On Wednesday, June 12, 2013 10:47:08 PM Yinghai Lu wrote:
> On Wed, Jun 12, 2013 at 8:50 PM, Bjorn Helgaas <bhelgaas@google.com> wrote:
> > On Wed, Jun 12, 2013 at 1:41 PM, Yinghai Lu <yinghai@kernel.org> wrote:
> >
> > I think you're saying that in systems that support both acpiphp and
> > pciehp, we should be using pciehp, but we currently use acpiphp. If
> > so, that's certainly a bug. How serious is it? Is it a disaster if
> > we use acpiphp until we can resolve this cleanly? Are there a lot of
> > systems that claim to support acpiphp but it doesn't actually work?
>
> No sure. To make acpiphp would need more expertise in bios.
> Normally BIOS vendor would have half done work there, and will need
> OEM or system vendor have someone to make it work ....
> You would not want to read asl code in DSDT to help them out.
> That is not something that we can control.

However, pciehp may simply not work by itself on those systems.

It's pretty much like saying "Oh, _CRS may be screwed up, so let's just ignore
it", which isn't overly smart.

Thanks,
Rafael


--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.


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