Hi Anusha, kernel test robot noticed the following build errors:
[auto build test ERROR on de04bb0089a96cc00d13b12cbf66a088befe3057] url: https://github.com/intel-lab-lkp/linux/commits/Anusha-Srivatsa/panel-orisetech-otm8009a-Use-refcounted-allocation-in-place-of-devm_kzalloc/20250404-052751 base: de04bb0089a96cc00d13b12cbf66a088befe3057 patch link: https://lore.kernel.org/r/20250403-b4-drm_panel_mass_driver_convert_part3-v1-41-965b15ad5b8e%40redhat.com patch subject: [PATCH 41/46] panel/widechips-ws2401: Use refcounted allocation in place of devm_kzalloc() config: x86_64-buildonly-randconfig-001-20250405 (https://download.01.org/0day-ci/archive/20250405/202504050919.klkbundh-...@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250405/202504050919.klkbundh-...@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202504050919.klkbundh-...@intel.com/ All errors (new ones prefixed by >>): ld: drivers/gpu/drm/panel/panel-widechips-ws2401.o: in function `ws2401_probe': >> drivers/gpu/drm/panel/panel-widechips-ws2401.c:350: undefined reference to >> `__devm_drm_panel_alloc' vim +350 drivers/gpu/drm/panel/panel-widechips-ws2401.c 343 344 static int ws2401_probe(struct spi_device *spi) 345 { 346 struct device *dev = &spi->dev; 347 struct ws2401 *ws; 348 int ret; 349 > 350 ws = devm_drm_panel_alloc(dev, struct ws2401, panel, > &ws2401_drm_funcs, 351 DRM_MODE_CONNECTOR_DPI); 352 if (IS_ERR(ws)) 353 return PTR_ERR(ws); 354 355 ws->dev = dev; 356 357 /* 358 * VCI is the analog voltage supply 359 * VCCIO is the digital I/O voltage supply 360 */ 361 ws->regulators[0].supply = "vci"; 362 ws->regulators[1].supply = "vccio"; 363 ret = devm_regulator_bulk_get(dev, 364 ARRAY_SIZE(ws->regulators), 365 ws->regulators); 366 if (ret) 367 return dev_err_probe(dev, ret, "failed to get regulators\n"); 368 369 ws->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); 370 if (IS_ERR(ws->reset)) { 371 ret = PTR_ERR(ws->reset); 372 return dev_err_probe(dev, ret, "no RESET GPIO\n"); 373 } 374 375 ret = mipi_dbi_spi_init(spi, &ws->dbi, NULL); 376 if (ret) 377 return dev_err_probe(dev, ret, "MIPI DBI init failed\n"); 378 ws->dbi.read_commands = ws2401_dbi_read_commands; 379 380 ws2401_power_on(ws); 381 ws2401_read_mtp_id(ws); 382 ws2401_power_off(ws); 383 384 ret = drm_panel_of_backlight(&ws->panel); 385 if (ret) 386 return dev_err_probe(dev, ret, 387 "failed to get external backlight device\n"); 388 389 if (!ws->panel.backlight) { 390 dev_dbg(dev, "no external backlight, using internal backlight\n"); 391 ws->panel.backlight = 392 devm_backlight_device_register(dev, "ws2401", dev, ws, 393 &ws2401_bl_ops, &ws2401_bl_props); 394 if (IS_ERR(ws->panel.backlight)) 395 return dev_err_probe(dev, PTR_ERR(ws->panel.backlight), 396 "failed to register backlight device\n"); 397 } else { 398 dev_dbg(dev, "using external backlight\n"); 399 } 400 401 spi_set_drvdata(spi, ws); 402 403 drm_panel_add(&ws->panel); 404 dev_dbg(dev, "added panel\n"); 405 406 return 0; 407 } 408 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
