Hi Usama, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Usama-Arif/mm-hugetlb-Skip-prep-of-tail-pages-when-HVO-is-enabled/20230728-044839 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230727204624.1942372-2-usama.arif%40bytedance.com patch subject: [v1 1/6] mm: hugetlb: Skip prep of tail pages when HVO is enabled config: arm64-randconfig-r016-20230727 (https://download.01.org/0day-ci/archive/20230728/202307281636.rXw2Dlzr-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230728/202307281636.rXw2Dlzr-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/202307281636.rXw2Dlzr-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from mm/hugetlb.c:49: >> mm/hugetlb_vmemmap.h:56:6: warning: no previous prototype for 'vmemmap_should_optimize' [-Wmissing-prototypes] 56 | bool vmemmap_should_optimize(const struct hstate *h, const struct page *head) | ^~~~~~~~~~~~~~~~~~~~~~~ vim +/vmemmap_should_optimize +56 mm/hugetlb_vmemmap.h 55 > 56 bool vmemmap_should_optimize(const struct hstate *h, const struct page *head) 57 { 58 return false; 59 } 60 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
