tree: https://github.com/hnaz/linux-mm master head: 8857950589bc3b4920d69c3e0b2c06d33f445d21 commit: 236e08e72c118cbb20e780cc853378e2c341825c [237/343] mm: don't include <linux/memremap.h> in <linux/mm.h> config: powerpc64-randconfig-m031-20220217 (https://download.01.org/0day-ci/archive/20220217/202202172347.lJ6oYVOE-lk...) compiler: powerpc64le-linux-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/hnaz/linux-mm/commit/236e08e72c118cbb20e780cc853378e2c... git remote add hnaz-mm https://github.com/hnaz/linux-mm git fetch --no-tags hnaz-mm master git checkout 236e08e72c118cbb20e780cc853378e2c341825c # 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=powerpc SHELL=/bin/bash arch/powerpc/mm/book3s64/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 540 | unsigned long memremap_compat_align(void) | ^~~~~~~~~~~~~~~~~~~~~ vim +/memremap_compat_align +540 arch/powerpc/mm/book3s64/pgtable.c 20626177c9de72 Nicholas Piggin 2021-12-02 531 387e220a2e5e63 Nicholas Piggin 2021-12-02 532 #if defined(CONFIG_ZONE_DEVICE) && defined(CONFIG_ARCH_HAS_MEMREMAP_COMPAT_ALIGN) 20626177c9de72 Nicholas Piggin 2021-12-02 533 /* 20626177c9de72 Nicholas Piggin 2021-12-02 534 * Override the generic version in mm/memremap.c. 20626177c9de72 Nicholas Piggin 2021-12-02 535 * 20626177c9de72 Nicholas Piggin 2021-12-02 536 * With hash translation, the direct-map range is mapped with just one 20626177c9de72 Nicholas Piggin 2021-12-02 537 * page size selected by htab_init_page_sizes(). Consult 20626177c9de72 Nicholas Piggin 2021-12-02 538 * mmu_psize_defs[] to determine the minimum page size alignment. 20626177c9de72 Nicholas Piggin 2021-12-02 539 */ 20626177c9de72 Nicholas Piggin 2021-12-02 @540 unsigned long memremap_compat_align(void) :::::: The code at line 540 was first introduced by commit :::::: 20626177c9de726c48802c15e8635cc154645588 powerpc: make memremap_compat_align 64s-only :::::: TO: Nicholas Piggin <npiggin(a)gmail.com&gt; :::::: CC: Michael Ellerman <mpe(a)ellerman.id.au&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org