Hi Ryan, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on linus/master v6.7-rc1 next-20231115] [cannot apply to arm64/for-next/core efi/next] [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/Ryan-Roberts/mm-Batch-copy-PTE-ranges-during-fork/20231116-010123 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20231115163018.1303287-2-ryan.roberts%40arm.com patch subject: [PATCH v2 01/14] mm: Batch-copy PTE ranges during fork() config: alpha-defconfig (https://download.01.org/0day-ci/archive/20231116/202311160652.wBj0hbPP-lkp@xxxxxxxxx/config) compiler: alpha-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231116/202311160652.wBj0hbPP-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/202311160652.wBj0hbPP-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): mm/memory.c: In function 'folio_nr_pages_cont_mapped': mm/memory.c:969:16: error: implicit declaration of function 'pte_pgprot'; did you mean 'ptep_get'? [-Werror=implicit-function-declaration] 969 | prot = pte_pgprot(pte_mkold(pte_mkclean(ptent))); | ^~~~~~~~~~ | ptep_get >> mm/memory.c:969:16: error: incompatible types when assigning to type 'pgprot_t' from type 'int' In file included from include/linux/shm.h:6, from include/linux/sched.h:16, from include/linux/hardirq.h:9, from include/linux/interrupt.h:11, from include/linux/kernel_stat.h:9, from mm/memory.c:43: >> arch/alpha/include/asm/page.h:38:29: error: request for member 'pgprot' in something not a structure or union 38 | #define pgprot_val(x) ((x).pgprot) | ^ mm/memory.c:981:21: note: in expansion of macro 'pgprot_val' 981 | pgprot_val(pte_pgprot(ptent)) != pgprot_val(prot)) | ^~~~~~~~~~ cc1: some warnings being treated as errors vim +969 mm/memory.c 950 951 static int folio_nr_pages_cont_mapped(struct folio *folio, 952 struct page *page, pte_t *pte, 953 unsigned long addr, unsigned long end, 954 pte_t ptent, bool *any_dirty) 955 { 956 int floops; 957 int i; 958 unsigned long pfn; 959 pgprot_t prot; 960 struct page *folio_end; 961 962 if (!folio_test_large(folio)) 963 return 1; 964 965 folio_end = &folio->page + folio_nr_pages(folio); 966 end = min(page_cont_mapped_vaddr(folio_end, page, addr), end); 967 floops = (end - addr) >> PAGE_SHIFT; 968 pfn = page_to_pfn(page); > 969 prot = pte_pgprot(pte_mkold(pte_mkclean(ptent))); 970 971 *any_dirty = pte_dirty(ptent); 972 973 pfn++; 974 pte++; 975 976 for (i = 1; i < floops; i++) { 977 ptent = ptep_get(pte); 978 ptent = pte_mkold(pte_mkclean(ptent)); 979 980 if (!pte_present(ptent) || pte_pfn(ptent) != pfn || 981 pgprot_val(pte_pgprot(ptent)) != pgprot_val(prot)) 982 break; 983 984 if (pte_dirty(ptent)) 985 *any_dirty = true; 986 987 pfn++; 988 pte++; 989 } 990 991 return i; 992 } 993 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
