tree: https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git devel head: ccf63100a2114b19c81d53db1e7cc76de85d9839 commit: 8ee1d6933417ddd5cbd186b9186406a155d1b209 [77/101] make use of uart_get_byte_size config: nios2-allyesconfig (attached as .config) compiler: nios2-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git/commi... git remote add jirislaby https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git git fetch --no-tags jirislaby devel git checkout 8ee1d6933417ddd5cbd186b9186406a155d1b209 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nios2 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/char/pcmcia/synclink_cs.c: In function 'mgslpc_change_params': 1424 | info->params.data_bits = uart_get_byte_size(cflag, false, false, false); | ^~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/uart_get_byte_size +1424 drivers/char/pcmcia/synclink_cs.c 1398 1399 /* Reconfigure adapter based on new parameters 1400 */ 1401 static void mgslpc_change_params(MGSLPC_INFO *info, struct tty_struct *tty) 1402 { 1403 unsigned cflag; 1404 int bits_per_char; 1405 1406 if (!tty) 1407 return; 1408 1409 if (debug_level >= DEBUG_LEVEL_INFO) 1410 printk("%s(%d):mgslpc_change_params(%s)\n", 1411 __FILE__, __LINE__, info->device_name); 1412 1413 cflag = tty->termios.c_cflag; 1414 1415 /* if B0 rate (hangup) specified then negate RTS and DTR */ 1416 /* otherwise assert RTS and DTR */ 1417 if (cflag & CBAUD) 1418 info->serial_signals |= SerialSignal_RTS | SerialSignal_DTR; 1419 else 1420 info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR); 1421 1422 /* byte size and parity */ 1423 1425 1426 if (cflag & CSTOPB) 1427 info->params.stop_bits = 2; 1428 else 1429 info->params.stop_bits = 1; 1430 1431 info->params.parity = ASYNC_PARITY_NONE; 1432 if (cflag & PARENB) { 1433 if (cflag & PARODD) 1434 info->params.parity = ASYNC_PARITY_ODD; 1435 else 1436 info->params.parity = ASYNC_PARITY_EVEN; 1437 #ifdef CMSPAR 1438 if (cflag & CMSPAR) 1439 info->params.parity = ASYNC_PARITY_SPACE; 1440 #endif 1441 } 1442 1443 /* calculate number of jiffies to transmit a full 1444 * FIFO (32 bytes) at specified data rate 1445 */ 1446 bits_per_char = info->params.data_bits + 1447 info->params.stop_bits + 1; 1448 1449 /* if port data rate is set to 460800 or less then 1450 * allow tty settings to override, otherwise keep the 1451 * current data rate. 1452 */ 1453 if (info->params.data_rate <= 460800) { 1454 info->params.data_rate = tty_get_baud_rate(tty); 1455 } 1456 1457 if (info->params.data_rate) { 1458 info->timeout = (32*HZ*bits_per_char) / 1459 info->params.data_rate; 1460 } 1461 info->timeout += HZ/50; /* Add .02 seconds of slop */ 1462 1463 tty_port_set_cts_flow(&info->port, cflag & CRTSCTS); 1464 tty_port_set_check_carrier(&info->port, ~cflag & CLOCAL); 1465 1466 /* process tty input control flags */ 1467 1468 info->read_status_mask = 0; 1469 if (I_INPCK(tty)) 1470 info->read_status_mask |= BIT7 | BIT6; 1471 if (I_IGNPAR(tty)) 1472 info->ignore_status_mask |= BIT7 | BIT6; 1473 1474 mgslpc_program_hw(info, tty); 1475 } 1476 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org