_MACHINE_CLASS_INVALID   60 src/machine/machine.c         m->class = _MACHINE_CLASS_INVALID;
_MACHINE_CLASS_INVALID  170 src/machine/machine.c         if (m->class != _MACHINE_CLASS_INVALID)
_MACHINE_CLASS_INVALID  205 src/machine/machined-dbus.c                 c = _MACHINE_CLASS_INVALID;