tree: https://git.kernel.org/pub/scm/linux/kernel/git/kbingham/rcar.git vsp1/pa-phase head: d2606552ddb7871f0dd703f3655dec6bd7482407 commit: d2606552ddb7871f0dd703f3655dec6bd7482407 [7/7] imx135 camera sensor driver config: nds32-allyesconfig (attached as .config) compiler: nds32le-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/kbingham/rcar.git/commit/... git remote add rcar https://git.kernel.org/pub/scm/linux/kernel/git/kbingham/rcar.git git fetch --no-tags rcar vsp1/pa-phase git checkout d2606552ddb7871f0dd703f3655dec6bd7482407 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nds32 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/media/i2c/imx135.c: In function 'imx135_power_on': 1246 | struct acpi_handle_list dep_devices; | ^~~~~~~~~~~ 1251 | if (acpi_has_method(dev_handle, "_DEP")) { | ^~~~~~~~~~~~~~~ | acpi_has_watchdog 1252 | status = acpi_evaluate_reference(dev_handle, "_DEP", NULL, | ^~~~~~~~~~~~~~~~~~~~~~~ | acpi_evaluate_object 1271 | if (acpi_bus_get_device(dep_devices.handles[i], &device)) | ^~~~~~~~~~~~~~~~~~~ | acpi_get_gpe_device 1274 | dev = bus_find_device(&platform_bus_type, NULL, | ^~~~~~~~~~~~~~~~~ drivers/media/i2c/imx135.c:1274:28: note: each undeclared identifier is reported only once for each function it appears in 1275 | &device->fwnode, match_depend); | ^~ drivers/media/i2c/imx135.c:1246:26: warning: unused variable 'dep_devices' [-Wunused-variable] 1246 | struct acpi_handle_list dep_devices; | ^~~~~~~~~~~ cc1: some warnings being treated as errors vim +1246 drivers/media/i2c/imx135.c 1239 1240 static int imx135_power_on(struct device *dev) 1241 { 1242 struct i2c_client *client = to_i2c_client(dev); 1243 struct v4l2_subdev *sd = i2c_get_clientdata(client); 1244 struct imx135 *imx135 = to_imx135(sd); 1245 struct acpi_handle *dev_handle = ACPI_HANDLE(&client->dev); 1247 acpi_status status; 1248 int ret; 1249 int i; 1250 1253 &dep_devices); 1254 if (ACPI_FAILURE(status)) { 1255 printk("Failed to evaluate _DEP.\n"); 1256 return -ENODEV; 1257 } 1258 1259 for (i = 0; i < dep_devices.count; i++) { 1260 struct acpi_device *device; 1261 struct acpi_device_info *info; 1262 1263 status = acpi_get_object_info(dep_devices.handles[i], &info); 1264 if (ACPI_FAILURE(status)) { 1265 printk("Error reading _DEP device info\n"); 1266 return -ENODEV; 1267 } 1268 1269 if (info->valid & ACPI_VALID_HID && 1270 !strcmp(info->hardware_id.string, "INT3472")) { 1272 return -ENODEV; 1273 1276 if (dev) { 1277 dev_info(&client->dev, "Dependent platform device found %s\n", 1278 dev_name(dev)); 1279 break; 1280 } 1281 } 1282 } 1283 } 1284 1285 ret = regulator_bulk_enable(IMX135_NUM_SUPPLIES, imx135->supplies); 1286 if (ret) { 1287 dev_err(imx135->dev, "Failed to enable regulators\n"); 1288 return ret; 1289 } 1290 1291 usleep_range(1, 2); 1292 gpiod_set_value_cansleep(imx135->rst_gpio, 1); 1293 usleep_range(30000, 31000); 1294 1295 return 0; 1296 } 1297 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org