Hi mac.shen, kernel test robot noticed the following build errors: [auto build test ERROR on drm-misc/drm-misc-next] [also build test ERROR on pza/reset/next linus/master v6.8-rc4 next-20240213] [cannot apply to pza/imx-drm/next] [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/mac-shen/Subject-PATCH-drm-mediatek-dp-Add-tee-client-application-for-HDCP-feature/20240205-163727 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20240205055055.25340-3-mac.shen%40mediatek.com patch subject: [PATCH v2 2/3] Subject: [PATCH] drm/mediatek/dp: Add HDCP2.x feature for DisplayPort config: arm-randconfig-001-20240213 (https://download.01.org/0day-ci/archive/20240213/202402131731.OMfzWywy-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240213/202402131731.OMfzWywy-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/202402131731.OMfzWywy-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): arm-linux-gnueabi-ld: drivers/gpu/drm/mediatek/mtk_dp.o: in function `mtk_dp_get_system_time': >> mtk_dp.c:(.text+0x41c0): undefined reference to `__aeabi_uldivmod' >> arm-linux-gnueabi-ld: mtk_dp.c:(.text+0x41ce): undefined reference to `__aeabi_uldivmod' arm-linux-gnueabi-ld: drivers/gpu/drm/mediatek/mtk_dp.o: in function `mtk_dp_get_time_diff': mtk_dp.c:(.text+0x41ea): undefined reference to `__aeabi_uldivmod' arm-linux-gnueabi-ld: mtk_dp.c:(.text+0x41f8): undefined reference to `__aeabi_uldivmod' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
