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Re: [ath5k-devel] [PATCH v3] ath5k: disable ASPM

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On Wed, Jul 28, 2010 at 4:48 PM, Maxim Levitsky <maximlevitsky@xxxxxxxxx> wrote:
> On Tue, 2010-07-27 at 08:57 -0700, Luis R. Rodriguez wrote:
>> On Tue, Jul 27, 2010 at 2:35 AM, Maxim Levitsky <maximlevitsky@xxxxxxxxx> wrote:
>> > On Mon, 2010-07-26 at 23:50 +0100, Matthew Garrett wrote:
>> >> On Mon, Jul 26, 2010 at 03:43:04PM -0700, Luis R. Rodriguez wrote:
>> >>
>> >> > I see.. thanks Mathew... in that case since L1 works on all devices we
>> >> > could just force enable L1 for all PCIE devices. What do you think?
>> >>
>> >> Works for me.
>> >>
>> >
>> > On the second thought, there is no 'pci_enable_link_state' :-)
>> > I afraid that if I add it, I might not do that right for all cases, thus
>> > do more harm that good...
>>
>> I'm sorry, can you elaborate?
>
> I mean ASPM code doesn't have a function to undo effects of the
> blacklist (due to pre 1.1 pcie device).
>
> Its not that simple to write such function.

Ah good catch... pcie_aspm_sanity_check() will actually be used to
adjust the device link capability... So even if we do try to insist it
wouldn't work. I'm happy if we deal with this separately, its a
reasonable compromise to fix issues with existing devices out there.

  Luis
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