Hi Qi, Thank you for the patch! Yet something to improve: [auto build test ERROR on hnaz-mm/master] [also build test ERROR on driver-core/driver-core-testing linux/master linus/master v5.16-rc5 next-20211215] [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] url: https://github.com/0day-ci/linux/commits/Qi-Zheng/add-MemAvailable-to-per... base: https://github.com/hnaz/linux-mm master config: arc-randconfig-r043-20211216 (https://download.01.org/0day-ci/archive/20211217/202112170401.UyUM1wQ5-lk...) compiler: arc-elf-gcc (GCC) 11.2.0 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/0day-ci/linux/commit/7980664f23d619d15a3931fe1ab7d1dba... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Qi-Zheng/add-MemAvailable-to-per-node-meminfo/20211216-204828 git checkout 7980664f23d619d15a3931fe1ab7d1dbafad7c88 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arc SHELL=/bin/bash 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 >>): arc-elf-ld: mm/page_alloc.o: in function `si_mem_available': --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org