Hi Alistair, kernel test robot noticed the following build errors: [auto build test ERROR on f2661062f16b2de5d7b6a5c42a9a5c96326b8454] url: https://github.com/intel-lab-lkp/linux/commits/Alistair-Popple/mm-gup-c-Remove-redundant-check-for-PCI-P2PDMA-page/20240627-191709 base: f2661062f16b2de5d7b6a5c42a9a5c96326b8454 patch link: https://lore.kernel.org/r/bd332b0d3971b03152b3541f97470817c5147b51.1719386613.git-series.apopple%40nvidia.com patch subject: [PATCH 07/13] huge_memory: Allow mappings of PUD sized pages config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20240628/202406280637.147dyRrV-lkp@xxxxxxxxx/config) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240628/202406280637.147dyRrV-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/202406280637.147dyRrV-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> mm/rmap.c:1513:37: error: call to '__compiletime_assert_279' declared with 'error' attribute: BUILD_BUG failed 1513 | __folio_add_file_rmap(folio, page, HPAGE_PUD_NR, vma, RMAP_LEVEL_PUD); | ^ include/linux/huge_mm.h:111:26: note: expanded from macro 'HPAGE_PUD_NR' 111 | #define HPAGE_PUD_NR (1<<HPAGE_PUD_ORDER) | ^ include/linux/huge_mm.h:110:26: note: expanded from macro 'HPAGE_PUD_ORDER' 110 | #define HPAGE_PUD_ORDER (HPAGE_PUD_SHIFT-PAGE_SHIFT) | ^ include/linux/huge_mm.h:97:28: note: expanded from macro 'HPAGE_PUD_SHIFT' 97 | #define HPAGE_PUD_SHIFT ({ BUILD_BUG(); 0; }) | ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:498:2: note: expanded from macro '_compiletime_assert' 498 | __compiletime_assert(condition, msg, prefix, suffix) | ^ include/linux/compiler_types.h:491:4: note: expanded from macro '__compiletime_assert' 491 | prefix ## suffix(); \ | ^ <scratch space>:72:1: note: expanded from here 72 | __compiletime_assert_279 | ^ mm/rmap.c:1660:35: error: call to '__compiletime_assert_280' declared with 'error' attribute: BUILD_BUG failed 1660 | __folio_remove_rmap(folio, page, HPAGE_PUD_NR, vma, RMAP_LEVEL_PUD); | ^ include/linux/huge_mm.h:111:26: note: expanded from macro 'HPAGE_PUD_NR' 111 | #define HPAGE_PUD_NR (1<<HPAGE_PUD_ORDER) | ^ include/linux/huge_mm.h:110:26: note: expanded from macro 'HPAGE_PUD_ORDER' 110 | #define HPAGE_PUD_ORDER (HPAGE_PUD_SHIFT-PAGE_SHIFT) | ^ include/linux/huge_mm.h:97:28: note: expanded from macro 'HPAGE_PUD_SHIFT' 97 | #define HPAGE_PUD_SHIFT ({ BUILD_BUG(); 0; }) | ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:498:2: note: expanded from macro '_compiletime_assert' 498 | __compiletime_assert(condition, msg, prefix, suffix) | ^ include/linux/compiler_types.h:491:4: note: expanded from macro '__compiletime_assert' 491 | prefix ## suffix(); \ | ^ <scratch space>:79:1: note: expanded from here 79 | __compiletime_assert_280 | ^ 2 errors generated. vim +1513 mm/rmap.c 1498 1499 /** 1500 * folio_add_file_rmap_pud - add a PUD mapping to a page range of a folio 1501 * @folio: The folio to add the mapping to 1502 * @page: The first page to add 1503 * @vma: The vm area in which the mapping is added 1504 * 1505 * The page range of the folio is defined by [page, page + HPAGE_PUD_NR) 1506 * 1507 * The caller needs to hold the page table lock. 1508 */ 1509 void folio_add_file_rmap_pud(struct folio *folio, struct page *page, 1510 struct vm_area_struct *vma) 1511 { 1512 #ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD > 1513 __folio_add_file_rmap(folio, page, HPAGE_PUD_NR, vma, RMAP_LEVEL_PUD); 1514 #else 1515 WARN_ON_ONCE(true); 1516 #endif 1517 } 1518 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
