[jimc:dd-fix-2c 15/15] ld.lld: error: undefined symbol: drm_debug_classes

[kernel test robot <lkp@intel.com>]

tree:   https://github.com/jimc/linux.git dd-fix-2c
head:   9ae65eae7fa1755bde5e601e9771c2bc35a8202d
commit: 9ae65eae7fa1755bde5e601e9771c2bc35a8202d [15/15] drm-drivers: add DRM_CLASSMAP_USE decls to 2nd round of drivers, helpers
config: i386-randconfig-a011-20230501 (https://download.01.org/0day-ci/archive/20230504/202305040608.R4hQJgVT-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
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://github.com/jimc/linux/commit/9ae65eae7fa1755bde5e601e9771c2bc35a8202d
        git remote add jimc https://github.com/jimc/linux.git
        git fetch --no-tags jimc dd-fix-2c
        git checkout 9ae65eae7fa1755bde5e601e9771c2bc35a8202d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305040608.R4hQJgVT-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: drm_debug_classes
   >>> referenced by udl_main.c
   >>>               drivers/gpu/drm/udl/udl_main.o:(__UNIQUE_ID_ddebug_class_user262) in archive vmlinux.a

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests