EVENT_UNDEF       218 src/udev/udevd.c                 event_queue_cleanup(udev, EVENT_UNDEF);
EVENT_UNDEF       589 src/udev/udevd.c                 if (match_type != EVENT_UNDEF && match_type != event->state)
EVENT_UNDEF      1533 src/udev/udevd.c         event_queue_cleanup(udev, EVENT_UNDEF);