Hi, kernel test robot noticed the following build errors: [auto build test ERROR on robh/for-next] [also build test ERROR on linus/master v6.3 next-20230505] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/alison-she-devel-com/dt-bindings-gnss-Add-U-Blox-Zed-F9/20230507-075854 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20230506225849.2752103-2-alison%40she-devel.com patch subject: [PATCH v3 1/2] gnss: ubx: customize serial device open to set U-Blox Zed-F9P baud config: i386-randconfig-a001 (https://download.01.org/0day-ci/archive/20230507/202305070938.8vWQFfIQ-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/637fad08b78d20ec3f1c07e6e37dc97f85eac7b9 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review alison-she-devel-com/dt-bindings-gnss-Add-U-Blox-Zed-F9/20230507-075854 git checkout 637fad08b78d20ec3f1c07e6e37dc97f85eac7b9 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 olddefconfig make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202305070938.8vWQFfIQ-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): drivers/gnss/ubx.c: In function 'ubx_probe': >> drivers/gnss/ubx.c:303:42: error: 'ubx_of_match' undeclared (first use in this function) 303 | data->features = of_match_device(ubx_of_match, &serdev->dev)->data; | ^~~~~~~~~~~~ drivers/gnss/ubx.c:303:42: note: each undeclared identifier is reported only once for each function it appears in At top level: drivers/gnss/ubx.c:176:12: warning: 'zed_f9p_serial_open' defined but not used [-Wunused-function] 176 | static int zed_f9p_serial_open(struct gnss_device *gdev) | ^~~~~~~~~~~~~~~~~~~ vim +/ubx_of_match +303 drivers/gnss/ubx.c 278 279 static int ubx_probe(struct serdev_device *serdev) 280 { 281 struct gnss_serial *gserial; 282 struct ubx_data *data; 283 struct gnss_operations *ubx_gnss_ops; 284 int ret; 285 286 gserial = gnss_serial_allocate(serdev, sizeof(*data)); 287 if (IS_ERR(gserial)) { 288 ret = PTR_ERR(gserial); 289 return ret; 290 } 291 ubx_gnss_ops = kzalloc(sizeof(struct gnss_operations), GFP_KERNEL); 292 if (IS_ERR(ubx_gnss_ops)) { 293 ret = PTR_ERR(ubx_gnss_ops); 294 return ret; 295 } 296 297 gserial->ops = &ubx_gserial_ops; 298 299 gserial->gdev->type = GNSS_TYPE_UBX; 300 301 data = gnss_serial_get_drvdata(gserial); 302 data->is_configured = 0; > 303 data->features = of_match_device(ubx_of_match, &serdev->dev)->data; 304 if (data->features && data->features->open) { 305 ubx_gnss_ops->open = data->features->open; 306 ubx_gnss_ops->close = gserial->gdev->ops->close; 307 ubx_gnss_ops->write_raw = gserial->gdev->ops->write_raw; 308 gserial->gdev->ops = ubx_gnss_ops; 309 } 310 311 data->vcc = devm_regulator_get(&serdev->dev, "vcc"); 312 if (IS_ERR(data->vcc)) { 313 ret = PTR_ERR(data->vcc); 314 goto err_free_gserial; 315 } 316 317 data->v_bckp = devm_regulator_get_optional(&serdev->dev, "v-bckp"); 318 if (IS_ERR(data->v_bckp)) { 319 ret = PTR_ERR(data->v_bckp); 320 if (ret == -ENODEV) 321 data->v_bckp = NULL; 322 else 323 goto err_free_gserial; 324 } 325 326 if (data->v_bckp) { 327 ret = regulator_enable(data->v_bckp); 328 if (ret) 329 goto err_free_gserial; 330 } 331 332 ret = gnss_serial_register(gserial); 333 if (ret) 334 goto err_disable_v_bckp; 335 336 return 0; 337 338 err_disable_v_bckp: 339 if (data->v_bckp) 340 regulator_disable(data->v_bckp); 341 err_free_gserial: 342 gnss_serial_free(gserial); 343 344 return ret; 345 } 346 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests