__eql_find_slave_dev
duplicate_slave = __eql_find_slave_dev(queue, slave->dev);
slave_t *slave = __eql_find_slave_dev(&eql->queue, slave_dev);
slave = __eql_find_slave_dev(&eql->queue, slave_dev);
slave = __eql_find_slave_dev(&eql->queue, slave_dev);