On Wed, Feb 05, 2025 at 02:44:43PM +0100, Greg Kroah-Hartman wrote:
> 6.13-stable review patch. If anyone has any objections, please let me know.
>
> ------------------
>
> From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
>
> [ Upstream commit 3775fc538f535a7c5adaf11990c7932a0bd1f9eb ]
>
> Commit 6e176bf8d461 ("PM: sleep: core: Do not skip callbacks in the
> resume phase") overlooked the case in which the parent of a device with
> DPM_FLAG_SMART_SUSPEND set did not use that flag and could be runtime-
> suspended before a transition into a system-wide sleep state. In that
> case, if the child is resumed during the subsequent transition from
> that state into the working state, its runtime PM status will be set to
> RPM_ACTIVE, but the runtime PM status of the parent will not be updated
> accordingly, even though the parent will be resumed too, because of the
> dev_pm_skip_suspend() check in device_resume_noirq().
>
> Address this problem by tracking the need to set the runtime PM status
> to RPM_ACTIVE during system-wide resume transitions for devices with
> DPM_FLAG_SMART_SUSPEND set and all of the devices depended on by them.
>
> Fixes: 6e176bf8d461 ("PM: sleep: core: Do not skip callbacks in the resume phase")
> Closes: https://lore.kernel.org/linux-pm/Z30p2Etwf3F2AUvD@xxxxxxxxxxxxxxxxxxxx/
> Reported-by: Johan Hovold <johan@xxxxxxxxxx>
> Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> Reviewed-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
> Tested-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
> Link: https://patch.msgid.link/12619233.O9o76ZdvQC@xxxxxxxxxxxxx
> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
This patch appears to be causing trouble and should not be backported,
at least not until this has been resolved:
https://lore.kernel.org/all/1c2433d4-7e0f-4395-b841-b8eac7c25651@xxxxxxxxxx/
Please drop from all stable queues.
Johan
