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Re: [PATCH] Revert "mt76: mt7921: enable aspm by default"

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On 12.04.22 11:37, Kalle Valo wrote:
> Philippe Schenker <dev@xxxxxxxxxxxx> writes:
> 
>> This reverts commit bf3747ae2e25dda6a9e6c464a717c66118c588c8.
>>
>> This commit introduces a regression on some systems where the kernel is
>> crashing in different locations after a reboot was issued.
>>
>> This issue was bisected on a Thinkpad P14s Gen2 (AMD) with latest firmware.
>>
>> Link: https://lore.kernel.org/linux-wireless/5077a953487275837e81bdf1808ded00b9676f9f.camel@xxxxxxxxxxxx/
>> Signed-off-by: Philippe Schenker <dev@xxxxxxxxxxxx>
> 
> Can I take this to wireless tree? Felix, ack?
> 
> I'll also add:
> 
> Fixes: bf3747ae2e25 ("mt76: mt7921: enable aspm by default")

Sorry, stupid questions from the regression tracker: wouldn't this cause
a regression for users of kernel versions post-bf3747ae2e25, as the
power consumption is likely to increase for them? Without having dug
into the backstory much: would disabling ASPM for this particular
machine using a quirk be the better approach? Or are we assuming a lot
of machines are affected?

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)

P.S.: As the Linux kernel's regression tracker I'm getting a lot of
reports on my table. I can only look briefly into most of them and lack
knowledge about most of the areas they concern. I thus unfortunately
will sometimes get things wrong or miss something important. I hope
that's not the case here; if you think it is, don't hesitate to tell me
in a public reply, it's in everyone's interest to set the public record
straight.




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