Hi Mehdi, kernel test robot noticed the following build errors: [auto build test ERROR on media-tree/master] [also build test ERROR on robh/for-next linus/master v6.6-rc5 next-20231013] [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/Mehdi-Djait/dt-bindings-vendor-prefixes-Add-techwell-vendor-prefix/20231007-002623 base: git://linuxtv.org/media_tree.git master patch link: https://lore.kernel.org/r/857baa8073f0b8051720959ef8fb1d49a6161d36.1696608809.git.mehdi.djait%40bootlin.com patch subject: [PATCH v6 3/3] media: i2c: Introduce a driver for the Techwell TW9900 decoder config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20231015/202310150123.XoLU3dcO-lkp@xxxxxxxxx/config) compiler: alpha-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231015/202310150123.XoLU3dcO-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202310150123.XoLU3dcO-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): drivers/media/i2c/tw9900.c: In function 'tw9900_get_stream_std': >> drivers/media/i2c/tw9900.c:359:15: error: implicit declaration of function 'FIELD_GET' [-Werror=implicit-function-declaration] 359 | std = FIELD_GET(TW9900_STDNOW_MASK, ret); | ^~~~~~~~~ cc1: some warnings being treated as errors vim +/FIELD_GET +359 drivers/media/i2c/tw9900.c 347 348 static int tw9900_get_stream_std(struct tw9900 *tw9900, 349 v4l2_std_id *std_id) 350 { 351 int std, ret; 352 353 ret = tw9900_read_reg(tw9900->client, TW9900_REG_STD_SEL); 354 if (ret < 0) { 355 *std_id = V4L2_STD_UNKNOWN; 356 return ret; 357 } 358 > 359 std = FIELD_GET(TW9900_STDNOW_MASK, ret); 360 361 switch (std) { 362 case TW9900_STD_NTSC_M: 363 *std_id = V4L2_STD_NTSC; 364 break; 365 case TW9900_STD_PAL_BDGHI: 366 *std_id = V4L2_STD_PAL; 367 break; 368 case TW9900_STD_AUTO: 369 *std_id = V4L2_STD_UNKNOWN; 370 break; 371 default: 372 *std_id = V4L2_STD_UNKNOWN; 373 break; 374 } 375 376 return 0; 377 } 378 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki