J1939_PGN_MAX 75 net/can/j1939/main.c skcb->addr.pgn = (cf->can_id >> 8) & J1939_PGN_MAX; J1939_PGN_MAX 314 net/can/j1939/main.c skcb->addr.pgn &= J1939_PGN_MAX; J1939_PGN_MAX 42 net/can/j1939/socket.c return pgn <= J1939_PGN_MAX;