CC: Linux Memory Management List <linux-mm(a)kvack.org&gt; TO: Guo Ren <guoren(a)linux.alibaba.com&gt; CC: Palmer Dabbelt <palmerdabbelt(a)google.com&gt; Hi Guo, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: ff90dfd2579b2c7bc1f0baa0cb99c918c6c1ec64 commit: afc76b8b80112189b6f11e67e19cf58301944814 [3113/11791] riscv: Using PATCHABLE_FUNCTION_ENTRY instead of MCOUNT config: riscv-randconfig-r011-20210218 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476) 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 # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout afc76b8b80112189b6f11e67e19cf58301944814 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv 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 >>): -- make[2]: *** [scripts/Makefile.build:279: scripts/mod/empty.o] Error 1 make[2]: *** [scripts/Makefile.build:117: scripts/mod/devicetable-offsets.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1205: prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:185: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org