RE: [PATCH] ACPI: PM: Revert "ACPI / PM: Blacklist Low Power S0 Idle _DSM for Dell XPS13 9360"

[<Mario.Limonciello@dell.com>]

> On 26.09.19 18:08, Mario Limonciello wrote:
> > This reverts part of
> > commit 71630b7a832f ("ACPI / PM: Blacklist Low Power S0 Idle _DSM for
> > Dell XPS13 9360") to remove the S0ix blacklist for the XPS 9360.
> >
> > The problems with this system occurred in one possible NVME SSD when
> > putting system into s0ix.  As the NVME sleep behavior has been
> > adjusted in d916b1be this is expected to be now resolved.
> 
> 1.  Please add, that it was the Hynix(?) SSD.
> 2.  Please add the commit message summary of d916b1be.
> 
>      nvme-pci: use host managed power state for suspend
> 

Rafael, let me know if you want me to adjust the commit message and resubmit
or if you would just handle this task.

> > Cc: 'Paul Menzel <pmenzel@molgen.mpg.de>'
> > BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=196907
> > Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
> 
> Tag it for the stable series? d916b1be (first tag v5.3-rc1) is not tagged for stable.
> 

Although Dell arranged a lot of testing with partners I don't feel d916b1be is a stable
candidate.  Rafael found a corner case with regards to ASPM configuration last minute
in 5.3rcX, I found a another corner case related to order of events and timing around
PC10 entry that's getting fixed in 5.4.

> > ---
> > The particular failing configuration was reported by only ever failed
> > for Paul Menzel, so hopefully he can test on his failing system.
> 
> I successfully tested Linux 5.4-rc1+ with this commit last Friday on the Dell XPS
> 13 9360.
> 
> Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>
> 

Well that's great, appreciate your testing and confirmation.