CAN_EFF_FLAG
cf->can_id |= CAN_EFF_FLAG;
if (cf->can_id & CAN_EFF_FLAG) {
cfi[0].can_mask = CAN_SFF_MASK | CAN_EFF_FLAG;
cfi[1].can_mask = CAN_SFF_MASK | CAN_EFF_FLAG;
cfi[0].can_mask = CAN_SFF_MASK | CAN_EFF_FLAG;
cfi[0].can_mask == (CAN_SFF_MASK | CAN_EFF_FLAG),
cfi.can_mask = CAN_SFF_MASK | CAN_EFF_FLAG;