call_on_cpu
retval = call_on_cpu(cpu, acpi_processor_ffh_cstate_probe_cpu, cx,
ret = call_on_cpu(pr->id, acpi_processor_throttling_fn, &arg,
ret = call_on_cpu(pr->id, acpi_processor_throttling_fn,
return call_on_cpu(pr->id, __acpi_processor_get_throttling, pr, false);