Hi Mike, kernel test robot noticed the following build errors: [auto build test ERROR on next-20230825] [cannot apply to akpm-mm/mm-everything v6.5-rc7 v6.5-rc6 v6.5-rc5 linus/master v6.5-rc7] [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/Mike-Kravetz/hugetlb-clear-flags-in-tail-pages-that-will-be-freed-individually/20230826-030805 base: next-20230825 patch link: https://lore.kernel.org/r/20230825190436.55045-11-mike.kravetz%40oracle.com patch subject: [PATCH 10/12] hugetlb: batch PMD split for bulk vmemmap dedup config: s390-randconfig-001-20230826 (https://download.01.org/0day-ci/archive/20230826/202308261325.ipTttZHZ-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20230826/202308261325.ipTttZHZ-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/202308261325.ipTttZHZ-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): mm/hugetlb_vmemmap.c:661:6: warning: no previous prototype for function 'hugetlb_vmemmap_optimize_bulk' [-Wmissing-prototypes] 661 | void hugetlb_vmemmap_optimize_bulk(const struct hstate *h, struct page *head, | ^ mm/hugetlb_vmemmap.c:661:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 661 | void hugetlb_vmemmap_optimize_bulk(const struct hstate *h, struct page *head, | ^ | static >> mm/hugetlb_vmemmap.c:667:6: warning: no previous prototype for function 'hugetlb_vmemmap_split' [-Wmissing-prototypes] 667 | void hugetlb_vmemmap_split(const struct hstate *h, struct page *head) | ^ mm/hugetlb_vmemmap.c:667:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 667 | void hugetlb_vmemmap_split(const struct hstate *h, struct page *head) | ^ | static >> mm/hugetlb_vmemmap.c:698:28: error: use of undeclared identifier 'TLB_FLUSH_ALL' 698 | flush_tlb_kernel_range(0, TLB_FLUSH_ALL); | ^ 2 warnings and 1 error generated. vim +/TLB_FLUSH_ALL +698 mm/hugetlb_vmemmap.c 666 > 667 void hugetlb_vmemmap_split(const struct hstate *h, struct page *head) 668 { 669 unsigned long vmemmap_start = (unsigned long)head, vmemmap_end; 670 unsigned long vmemmap_reuse; 671 672 if (!vmemmap_should_optimize(h, head)) 673 return; 674 675 static_branch_inc(&hugetlb_optimize_vmemmap_key); 676 677 vmemmap_end = vmemmap_start + hugetlb_vmemmap_size(h); 678 vmemmap_reuse = vmemmap_start; 679 vmemmap_start += HUGETLB_VMEMMAP_RESERVE_SIZE; 680 681 /* 682 * Remap the vmemmap virtual address range [@vmemmap_start, @vmemmap_end) 683 * to the page which @vmemmap_reuse is mapped to, then free the pages 684 * which the range [@vmemmap_start, @vmemmap_end] is mapped to. 685 */ 686 if (vmemmap_remap_split(vmemmap_start, vmemmap_end, vmemmap_reuse)) 687 static_branch_dec(&hugetlb_optimize_vmemmap_key); 688 } 689 690 void hugetlb_vmemmap_optimize_folios(struct hstate *h, struct list_head *folio_list) 691 { 692 struct folio *folio; 693 LIST_HEAD(vmemmap_pages); 694 695 list_for_each_entry(folio, folio_list, lru) 696 hugetlb_vmemmap_split(h, &folio->page); 697 > 698 flush_tlb_kernel_range(0, TLB_FLUSH_ALL); 699 700 list_for_each_entry(folio, folio_list, lru) 701 hugetlb_vmemmap_optimize_bulk(h, &folio->page, &vmemmap_pages); 702 703 free_vmemmap_page_list(&vmemmap_pages); 704 } 705 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
