Hi Quanyang, First bad commit (maybe != root cause): tree: https://github.com/Xilinx/linux-xlnx master head: af88f405134da108f814cfdf5eac9f2b60f2b800 commit: a5f3af6d255f3ccdd766a2424ef61cb2acef2083 [14/59] rtc: zynqmp: fix linking failure for ARCH arm config: i386-randconfig-a005-20210812 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/Xilinx/linux-xlnx/commit/a5f3af6d255f3ccdd766a2424ef61... git remote add xlnx https://github.com/Xilinx/linux-xlnx git fetch --no-tags xlnx master git checkout a5f3af6d255f3ccdd766a2424ef61cb2acef2083 # save the attached .config to linux build tree make W=1 ARCH=i386 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