tree: https://gitlab.freedesktop.org/drm/msm.git msm-next head: e88bbc91849b2bf57683119c339e52916d34433f commit: c1d12c19efd91b9cda5472bc4ec48854e67c24a8 [85/86] drm/msm/mdp5: provide dynamic bandwidth management config: arm-allyesconfig (attached as .config) compiler: arm-linux-gnueabi-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 drm-msm https://gitlab.freedesktop.org/drm/msm.git git fetch --no-tags drm-msm msm-next git checkout c1d12c19efd91b9cda5472bc4ec48854e67c24a8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Note: the drm-msm/msm-next HEAD e88bbc91849b2bf57683119c339e52916d34433f builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): arm-linux-gnueabi-ld: drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.o: in function `mdp5_crtc_atomic_check': arm-linux-gnueabi-ld: mdp5_crtc.c:(.text+0x908): undefined reference to `__aeabi_uldivmod' arm-linux-gnueabi-ld: drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.o: in function `mdp5_kms_set_bandwidth': arm-linux-gnueabi-ld: drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.o:mdp5_plane.c:(.text+0xb90): more undefined references to `__aeabi_uldivmod' follow --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org