CONN_WD_ST_CHG_REQ
if (test_bit(CONN_WD_ST_CHG_REQ, &connection->flags)) {
set_bit(CONN_WD_ST_CHG_REQ, &connection->flags);
clear_bit(CONN_WD_ST_CHG_REQ, &connection->flags);
clear_bit(CONN_WD_ST_CHG_REQ, &connection->flags);