Re: [PATCH V1] PCI/ASPM: Save/restore L1SS Capability for suspend/resume

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On Thu, 21 Apr 2022, Bjorn Helgaas wrote:

> Vidya's original patch [1] is not upstream, at least AFAIK.  Well, it
> *was* merged as 4257f7e008ea [2] in v5.11-rc1, but then reverted by
> 40fb68c7725a [3] in v5.11-rc7.

Ah, you're absolutely right- now that I think of it, you guys had me cherry-
pick the commit and IIRC it didn't fail when I'd done so:

----
Date: Sat, 5 Feb 2022 09:30:07 -0800 (PST)
From: Kenneth R. Crudup <kenny@xxxxxxxxx>
To: Vidya Sagar <vidyas@xxxxxxxxxx>
Message-ID: <12fe557f-7336-1970-d8f0-5a93529cf8c1@xxxxxxxxx>
...

I just reapplied it on top of Linus' master and not only did it go in cleanly(!),
NOW I'm not getting any issues after a suspend/resume. I've attached the output
of "lspci -vvvvnn" before a hibernation (but not the very *first* one; if you
need that output, let me know) and will submit the same post-hibernation (which
is the same as the pre-hibernation case) and the post-suspend case (which is
slightly different) in subsequent E-mails (due to attachment size).
----

	-Kenny

-- 
Kenneth R. Crudup / Sr. SW Engineer, Scott County Consulting, Orange County CA



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