BT_OP_SCAN
clear_bit(BT_OP_SCAN, &btcoex->op_flags);
set_bit(BT_OP_SCAN, &btcoex->op_flags);
if (test_bit(BT_OP_SCAN, &btcoex->op_flags)) {
test_bit(BT_OP_SCAN, &btcoex->op_flags)))
clear_bit(BT_OP_SCAN, &btcoex->op_flags);