Hi Li, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on robh/for-next] [also build test WARNING on arm64/for-next/core arm-perf/for-next/perf linus/master v5.19-rc6 next-20220714] [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/Li-Chen/add-struct-page-and-Direct-I-O-support-to-reserved-memory/20220711-202957 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: x86_64-randconfig-k001 (https://download.01.org/0day-ci/archive/20220715/202207150209.3Svjqq9D-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5e61b9c556267086ef9b743a0b57df302eef831b) 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/intel-lab-lkp/linux/commit/d9809d17afee6693084b417325807c7123432fab git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Li-Chen/add-struct-page-and-Direct-I-O-support-to-reserved-memory/20220711-202957 git checkout d9809d17afee6693084b417325807c7123432fab # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>, old ones prefixed by <<): >> WARNING: modpost: vmlinux.o(.text+0x346d8f): Section mismatch in reference from the function fill_subsection_map() to the function .meminit.text:memblock_is_map_memory() The function fill_subsection_map() references the function __meminit memblock_is_map_memory(). This is often because fill_subsection_map lacks a __meminit annotation or the annotation of memblock_is_map_memory is wrong. -- 0-DAY CI Kernel Test Service https://01.org/lkp
