linux-kernel - [Bug 216782] resume from suspend broken on Asus UX305FA after PCI/PTM changes in kernel 6.1-rc1

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Date:   Thu, 15 Dec 2022 14:41:24 -0600
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Pavel Machek <pavel@....cz>
Cc:     Tasev Nikola <tasev.stefanoska@...net.be>,
        linux-pm@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [Bug 216782] resume from suspend broken on Asus UX305FA after
 PCI/PTM changes in kernel 6.1-rc1

https://bugzilla.kernel.org/show_bug.cgi?id=216782

Tasev reports that starting with 6.1-rc1, resume from suspend is
broken on Asus UX305FA.  Bisected to a47126ec29f5 ("PCI/PTM: Cache PTM
Capability offset"), which seems an unlikely culprit since no devices
in that system have the PTM capability.  6.1-rc1 with that PTM series
reverted also fails.

I have no ideas and would be glad for any hints.

Bjorn