tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-4.19 head: 9238e47da086f0075b28712a867544a7cda5e9e1 commit: ce0da0c8ecacc8bc0f2c71a045e9c90779614614 [40/56] BACKPORT: iio: cros_ec: Register to cros_ec_sensorhub when EC supports FIFO config: m68k-allmodconfig (attached as .config) compiler: m68k-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 git checkout ce0da0c8ecacc8bc0f2c71a045e9c90779614614 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Note: the chrome-os/chromeos-4.19 HEAD 9238e47da086f0075b28712a867544a7cda5e9e1 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): In file included from arch/m68k/include/asm/io_mm.h:25, from arch/m68k/include/asm/io.h:8, from include/linux/io.h:25, from include/linux/irq.h:20, from include/linux/iio/trigger.h:9, from drivers/iio/light/cros_ec_light_prox.c:13: arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsb': arch/m68k/include/asm/raw_io.h:83:7: warning: variable '__w' set but not used [-Wunused-but-set-variable] 83 | ({u8 __w, __v = (b); u32 _addr = ((u32) (addr)); \ | ^~~ arch/m68k/include/asm/raw_io.h:399:3: note: in expansion of macro 'rom_out_8' 399 | rom_out_8(port, *buf++); | ^~~~~~~~~ arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsw': arch/m68k/include/asm/raw_io.h:86:8: warning: variable '__w' set but not used [-Wunused-but-set-variable] 86 | ({u16 __w, __v = (w); u32 _addr = ((u32) (addr)); \ | ^~~ arch/m68k/include/asm/raw_io.h:417:3: note: in expansion of macro 'rom_out_be16' 417 | rom_out_be16(port, *buf++); | ^~~~~~~~~~~~ arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsw_swapw': arch/m68k/include/asm/raw_io.h:90:8: warning: variable '__w' set but not used [-Wunused-but-set-variable] 90 | ({u16 __w, __v = (w); u32 _addr = ((u32) (addr)); \ | ^~~ arch/m68k/include/asm/raw_io.h:435:3: note: in expansion of macro 'rom_out_le16' 435 | rom_out_le16(port, *buf++); | ^~~~~~~~~~~~ drivers/iio/light/cros_ec_light_prox.c: In function 'cros_ec_light_prox_probe': 378 | cros_ec_light_capture | ^ | ) 379 | cros_ec_sensors_push_data); | ~~~~~~~~~~~~~~~~~~~~~~~~~ 377 | ret = cros_ec_sensors_core_init(pdev, indio_dev, true, | ^~~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/iio/light/cros_ec_light_prox.c:10: include/linux/iio/common/cros_ec_sensors_core.h:101:5: note: declared here 101 | int cros_ec_sensors_core_init(struct platform_device *pdev, | ^~~~~~~~~~~~~~~~~~~~~~~~~ vim +378 drivers/iio/light/cros_ec_light_prox.c 363 364 365 static int cros_ec_light_prox_probe(struct platform_device *pdev) 366 { 367 struct device *dev = &pdev->dev; 368 struct iio_dev *indio_dev; 369 struct cros_ec_light_prox_state *state; 370 struct iio_chan_spec *channel; 371 int ret, i, num_channels = CROS_EC_LIGHT_PROX_MIN_CHANNELS; 372 373 indio_dev = devm_iio_device_alloc(dev, sizeof(*state)); 374 if (!indio_dev) 375 return -ENOMEM; 376 379 cros_ec_sensors_push_data); 380 if (ret) 381 return ret; 382 383 indio_dev->info = &cros_ec_light_prox_info; 384 state = iio_priv(indio_dev); 385 state->core.type = state->core.resp->info.type; 386 state->core.loc = state->core.resp->info.location; 387 388 /* Check if we need more sensors for RGB (or XYZ). */ 389 state->core.param.cmd = MOTIONSENSE_CMD_INFO; 390 if (cros_ec_light_extra_send_host_cmd(&state->core, 1, 0) == 0 && 391 state->core.resp->info.type == MOTIONSENSE_TYPE_LIGHT_RGB) 392 num_channels += CROS_EC_SENSOR_MAX_AXIS; 393 394 channel = devm_kcalloc(dev, num_channels, sizeof(*channel), 0); 395 if (channel == NULL) 396 return -ENOMEM; 397 398 indio_dev->channels = channel; 399 indio_dev->num_channels = num_channels; 400 401 cros_ec_light_channel_common(channel); 402 /* Sensor specific */ 403 switch (state->core.type) { 404 case MOTIONSENSE_TYPE_LIGHT: 405 channel->type = IIO_LIGHT; 406 if (num_channels < CROS_EC_LIGHT_PROX_MIN_CHANNELS + 407 CROS_EC_SENSOR_MAX_AXIS) { 408 /* For backward compatibility. */ 409 channel->info_mask_separate = 410 BIT(IIO_CHAN_INFO_PROCESSED) | 411 BIT(IIO_CHAN_INFO_CALIBBIAS) | 412 BIT(IIO_CHAN_INFO_CALIBSCALE); 413 } else { 414 /* 415 * To set a global scale, as CALIB_SCALE for RGB sensor 416 * is limited between 0 and 2. 417 */ 418 channel->info_mask_shared_by_all |= 419 BIT(IIO_CHAN_INFO_SCALE); 420 } 421 break; 422 case MOTIONSENSE_TYPE_PROX: 423 channel->type = IIO_PROXIMITY; 424 break; 425 default: 426 dev_warn(dev, "Unknown motion sensor\n"); 427 return -EINVAL; 428 } 429 channel++; 430 431 if (num_channels > CROS_EC_LIGHT_PROX_MIN_CHANNELS) { 432 for (i = CROS_EC_SENSOR_X; i < CROS_EC_SENSOR_MAX_AXIS; 433 i++, channel++) { 434 cros_ec_light_channel_common(channel); 435 channel->scan_index = i + 1; 436 channel->modified = 1; 437 channel->channel2 = IIO_MOD_LIGHT_RED + i; 438 channel->type = IIO_LIGHT; 439 } 440 } 441 442 /* Timestamp */ 443 channel->type = IIO_TIMESTAMP; 444 channel->channel = -1; 445 channel->scan_index = num_channels - 1; 446 channel->scan_type.sign = 's'; 447 channel->scan_type.realbits = 64; 448 channel->scan_type.storagebits = 64; 449 450 state->core.read_ec_sensors_data = cros_ec_sensors_read_cmd; 451 452 return devm_iio_device_register(dev, indio_dev); 453 } 454 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org