acpi-5.18-rc2

 - Revert an ACPI processor driver change related to cache
   invalidation in acpi_idle_play_dead() that clearly was a mistake
   and introduced user-visible regressions (Akihiko Odaki).

 - Replace the last instance of acpi_bus_get_device() added during
   the recent merge window and drop the function to prevent more
   users of it from being added (Rafael Wysocki).