[kbuild-all] [agd5f:drm-next 470/518] ERROR: modpost: ".dc_dsc_stream_bandwidth_in_kbps" undefined!

tree: https://gitlab.freedesktop.org/agd5f/linux.git drm-next head: c37eed39d0ba85a057baa9fafbf9f7cc1f888c1e commit: a03f6c0e26b2882fe3eeb092111bdccc113d76ce [470/518] drm/amd/display: Add changes for dsc bpp in 16ths and unify bw calculations config: powerpc-allmodconfig (attached as .config) compiler: powerpc64-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 git remote add agd5f https://gitlab.freedesktop.org/agd5f/linux.git git fetch --no-tags agd5f drm-next git checkout a03f6c0e26b2882fe3eeb092111bdccc113d76ce # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc 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 >>, old ones prefixed by <<): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org