HCI_CONN_BIG_CREATED
test_bit(HCI_CONN_BIG_CREATED, &conn->flags))
d->big_term = test_and_clear_bit(HCI_CONN_BIG_CREATED, &conn->flags);
set_bit(HCI_CONN_BIG_CREATED, &conn->flags);
if (test_bit(HCI_CONN_BIG_CREATED, &hcon->flags)) {