Hi Sourav, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on driver-core/driver-core-testing driver-core/driver-core-next driver-core/driver-core-linus linus/master v6.6-rc1 next-20230913] [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/Sourav-Panda/mm-report-per-page-metadata-information/20230914-013201 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230913173000.4016218-2-souravpanda%40google.com patch subject: [PATCH v1 1/1] mm: report per-page metadata information config: i386-tinyconfig (https://download.01.org/0day-ci/archive/20230914/202309140322.cF62Kywb-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230914/202309140322.cF62Kywb-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202309140322.cF62Kywb-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): ld: mm/mm_init.o: in function `free_area_init': >> mm_init.c:(.init.text+0x842): undefined reference to `mod_node_early_perpage_metadata' ld: mm/page_alloc.o: in function `setup_per_cpu_pageset': >> page_alloc.c:(.init.text+0x60): undefined reference to `writeout_early_perpage_metadata' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
