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charset=us-ascii Content-Disposition: inline tree: https://github.com/davidhildenbrand/linux nth_page head: 6604ef076c5814154b00afdb7ea9ce90fd598b08 commit: a81868b2ce05b94ec839ecbb2bb93376cf44c724 [13/34] mm/hugetlb: cleanup hugetlb_folio_init_tail_vmemmap() config: i386-buildonly-randconfig-003-20250823 (https://download.01.org/0day-ci/archive/20250823/202508231549.LAQRn060-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250823/202508231549.LAQRn060-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202508231549.LAQRn060-lkp@intel.com/ All errors (new ones prefixed by >>): >> mm/hugetlb.c:3250:28: error: use of undeclared identifier 'pfn' 3250 | __init_single_page(page, pfn, zone, nid); | ^ 1 error generated. vim +/pfn +3250 mm/hugetlb.c aa888a74977a8f2 Andi Kleen 2008-07-23 3232 fde1c4ecf91640e Usama Arif 2023-09-13 3233 /* Initialize [start_page:end_page_number] tail struct pages of a hugepage */ fde1c4ecf91640e Usama Arif 2023-09-13 3234 static void __init hugetlb_folio_init_tail_vmemmap(struct folio *folio, fde1c4ecf91640e Usama Arif 2023-09-13 3235 unsigned long start_page_number, fde1c4ecf91640e Usama Arif 2023-09-13 3236 unsigned long end_page_number) fde1c4ecf91640e Usama Arif 2023-09-13 3237 { fde1c4ecf91640e Usama Arif 2023-09-13 3238 enum zone_type zone = zone_idx(folio_zone(folio)); fde1c4ecf91640e Usama Arif 2023-09-13 3239 int nid = folio_nid(folio); a81868b2ce05b94 David Hildenbrand 2025-08-07 3240 struct page *head_page = folio_page(folio, 0); a81868b2ce05b94 David Hildenbrand 2025-08-07 3241 struct page *page = folio_page(folio, start_page_number); a81868b2ce05b94 David Hildenbrand 2025-08-07 3242 unsigned long i; fde1c4ecf91640e Usama Arif 2023-09-13 3243 int ret; fde1c4ecf91640e Usama Arif 2023-09-13 3244 a81868b2ce05b94 David Hildenbrand 2025-08-07 3245 /* a81868b2ce05b94 David Hildenbrand 2025-08-07 3246 * We mark all tail pages with memblock_reserved_mark_noinit(), a81868b2ce05b94 David Hildenbrand 2025-08-07 3247 * so these pages are completely uninitialized. a81868b2ce05b94 David Hildenbrand 2025-08-07 3248 */ a81868b2ce05b94 David Hildenbrand 2025-08-07 3249 for (i = start_page_number; i < end_page_number; i++, page++) { fde1c4ecf91640e Usama Arif 2023-09-13 @3250 __init_single_page(page, pfn, zone, nid); a81868b2ce05b94 David Hildenbrand 2025-08-07 3251 prep_compound_tail(head_page, i); a81868b2ce05b94 David Hildenbrand 2025-08-07 3252 set_page_count(page, 0); fde1c4ecf91640e Usama Arif 2023-09-13 3253 } fde1c4ecf91640e Usama Arif 2023-09-13 3254 } fde1c4ecf91640e Usama Arif 2023-09-13 3255 :::::: The code at line 3250 was first introduced by commit :::::: fde1c4ecf91640e5a95ec36b71ec2e8ec379ce40 mm: hugetlb: skip initialization of gigantic tail struct pages if freed by HVO :::::: TO: Usama Arif :::::: CC: Andrew Morton -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki