tree:   https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.10
head:   f6f032f82f0a13def702a0154df535db88f43391
commit: c2389b3a5c755a713dd15013c0d75cabbb9e12e5 [941/1756] rtc: zynqmp: Add calibration set and get support
config: microblaze-randconfig-r016-20210714 (attached as .config)
compiler: microblaze-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
        # https://github.com/Xilinx/linux-xlnx/commit/c2389b3a5c755a713dd15013c0d75cabbb9e12e5
        git remote add xlnx https://github.com/Xilinx/linux-xlnx
        git fetch --no-tags xlnx xlnx_rebase_v5.10
        git checkout c2389b3a5c755a713dd15013c0d75cabbb9e12e5
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross O=build_dir ARCH=microblaze SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   microblaze-linux-ld: drivers/rtc/rtc-zynqmp.o: in function `xlnx_rtc_read_offset':
>> (.text+0x68): undefined reference to `__divdi3'
   microblaze-linux-ld: drivers/rtc/rtc-zynqmp.o: in function `xlnx_rtc_set_offset':
   (.text+0x6b4): undefined reference to `__divdi3'

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org