Hi Nicolas, I love your patch! Yet something to improve: [auto build test ERROR on tty/tty-testing] [also build test ERROR on v4.18-rc4 next-20180711] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Ludovic-Desroches/add-ISO7816-support/20180712-052207 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing config: xtensa-allmodconfig (attached as .config) compiler: xtensa-linux-gcc (GCC) 8.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=8.1.0 make.cross ARCH=xtensa All errors (new ones prefixed by >>): drivers/tty/serial/serial_core.c: In function 'uart_ioctl': drivers/tty/serial/serial_core.c:1430:7: error: 'TIOCSISO7816' undeclared (first use in this function); did you mean 'TIOCSRS485'? case TIOCSISO7816: ^~~~~~~~~~~~ TIOCSRS485 drivers/tty/serial/serial_core.c:1430:7: note: each undeclared identifier is reported only once for each function it appears in >> drivers/tty/serial/serial_core.c:1434:7: error: 'TIOCGISO7816' undeclared (first use in this function); did you mean 'TIOCGRS485'? case TIOCGISO7816: ^~~~~~~~~~~~ TIOCGRS485 vim +1434 drivers/tty/serial/serial_core.c 1344 1345 /* 1346 * Called via sys_ioctl. We can use spin_lock_irq() here. 1347 */ 1348 static int 1349 uart_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) 1350 { 1351 struct uart_state *state = tty->driver_data; 1352 struct tty_port *port = &state->port; 1353 struct uart_port *uport; 1354 void __user *uarg = (void __user *)arg; 1355 int ret = -ENOIOCTLCMD; 1356 1357 1358 /* 1359 * These ioctls don't rely on the hardware to be present. 1360 */ 1361 switch (cmd) { 1362 case TIOCGSERIAL: 1363 ret = uart_get_info_user(port, uarg); 1364 break; 1365 1366 case TIOCSSERIAL: 1367 down_write(&tty->termios_rwsem); 1368 ret = uart_set_info_user(tty, state, uarg); 1369 up_write(&tty->termios_rwsem); 1370 break; 1371 1372 case TIOCSERCONFIG: 1373 down_write(&tty->termios_rwsem); 1374 ret = uart_do_autoconfig(tty, state); 1375 up_write(&tty->termios_rwsem); 1376 break; 1377 1378 case TIOCSERGWILD: /* obsolete */ 1379 case TIOCSERSWILD: /* obsolete */ 1380 ret = 0; 1381 break; 1382 } 1383 1384 if (ret != -ENOIOCTLCMD) 1385 goto out; 1386 1387 if (tty_io_error(tty)) { 1388 ret = -EIO; 1389 goto out; 1390 } 1391 1392 /* 1393 * The following should only be used when hardware is present. 1394 */ 1395 switch (cmd) { 1396 case TIOCMIWAIT: 1397 ret = uart_wait_modem_status(state, arg); 1398 break; 1399 } 1400 1401 if (ret != -ENOIOCTLCMD) 1402 goto out; 1403 1404 mutex_lock(&port->mutex); 1405 uport = uart_port_check(state); 1406 1407 if (!uport || tty_io_error(tty)) { 1408 ret = -EIO; 1409 goto out_up; 1410 } 1411 1412 /* 1413 * All these rely on hardware being present and need to be 1414 * protected against the tty being hung up. 1415 */ 1416 1417 switch (cmd) { 1418 case TIOCSERGETLSR: /* Get line status register */ 1419 ret = uart_get_lsr_info(tty, state, uarg); 1420 break; 1421 1422 case TIOCGRS485: 1423 ret = uart_get_rs485_config(uport, uarg); 1424 break; 1425 1426 case TIOCSRS485: 1427 ret = uart_set_rs485_config(uport, uarg); 1428 break; 1429 > 1430 case TIOCSISO7816: 1431 ret = uart_set_iso7816_config(state->uart_port, uarg); 1432 break; 1433 > 1434 case TIOCGISO7816: 1435 ret = uart_get_iso7816_config(state->uart_port, uarg); 1436 break; 1437 default: 1438 if (uport->ops->ioctl) 1439 ret = uport->ops->ioctl(uport, cmd, arg); 1440 break; 1441 } 1442 out_up: 1443 mutex_unlock(&port->mutex); 1444 out: 1445 return ret; 1446 } 1447 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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