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commit c2ce2453413d429e302659abc5ace634e873f6f5 upstream. Devices with power.no_pm set are not expected to need any power management at all, so modify device_set_pm_not_required() to set power.no_callbacks for them too in case runtime PM will be enabled for any of them (which in principle may be done for convenience if such a device participates in a dependency chain). Since device_set_pm_not_required() must be called before device_add() or it would not have any effect, it can update power.no_callbacks without locking, unlike pm_runtime_no_callbacks() that can be called after registering the target device. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: stable <stable@kernel.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Link: https://lore.kernel.org/r/1950054.tdWV9SEqCh@rafael.j.wysocki Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| linux | ||
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