threshold_delete
return ops->threshold_delete(nla_get_u32(attrs[THERMAL_GENL_ATTR_TZ_ID]),
enabled_ops[THERMAL_GENL_EVENT_THRESHOLD_DELETE] = !!ops->threshold_delete;
int (*threshold_delete)(int tz_id, int temperature, int direction, void *arg);
.events.threshold_delete = threshold_delete,