* Re: [PATCH 10/16] mm: replace pmd_to_swp_entry() with leafent_from_pmd()
[not found] <38c26e75ed00263e9ecbebb0c045dd6d8183ec67.1762171281.git.lorenzo.stoakes@oracle.com>
@ 2025-11-03 16:24 ` kernel test robot
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From: kernel test robot @ 2025-11-03 16:24 UTC (permalink / raw)
To: Lorenzo Stoakes, Andrew Morton
Cc: llvm, oe-kbuild-all, Linux Memory Management List,
Christian Borntraeger, Janosch Frank, Claudio Imbrenda,
David Hildenbrand, Alexander Gordeev, Gerald Schaefer,
Heiko Carstens, Vasily Gorbik, Sven Schnelle, Peter Xu,
Alexander Viro, Christian Brauner, Jan Kara, Arnd Bergmann,
Zi Yan, Baolin Wang, Liam R . Howlett, Nico Pache, Ryan Roberts,
Dev Jain, Barry Song, Lance Yang, Muchun Song, Oscar Salvador,
Vlastimil Babka, Mike Rapoport, Suren Baghdasaryan, Michal Hocko
Hi Lorenzo,
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-everything]
url: https://github.com/intel-lab-lkp/linux/commits/Lorenzo-Stoakes/mm-correctly-handle-UFFD-PTE-markers/20251103-204118
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/38c26e75ed00263e9ecbebb0c045dd6d8183ec67.1762171281.git.lorenzo.stoakes%40oracle.com
patch subject: [PATCH 10/16] mm: replace pmd_to_swp_entry() with leafent_from_pmd()
config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20251103/202511032303.n4dF1k87-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/20251103/202511032303.n4dF1k87-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202511032303.n4dF1k87-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from mm/folio-compat.c:7:
In file included from include/linux/migrate.h:9:
In file included from include/linux/leafops.h:6:
>> include/linux/swapops.h:90:21: error: use of undeclared identifier 'MAX_SWAPFILES_SHIFT'
90 | ret.val = (type << SWP_TYPE_SHIFT) | (offset & SWP_OFFSET_MASK);
| ^
include/linux/swapops.h:27:45: note: expanded from macro 'SWP_TYPE_SHIFT'
27 | #define SWP_TYPE_SHIFT (BITS_PER_XA_VALUE - MAX_SWAPFILES_SHIFT)
| ^
include/linux/swapops.h:90:49: error: use of undeclared identifier 'MAX_SWAPFILES_SHIFT'
90 | ret.val = (type << SWP_TYPE_SHIFT) | (offset & SWP_OFFSET_MASK);
| ^
include/linux/swapops.h:28:34: note: expanded from macro 'SWP_OFFSET_MASK'
28 | #define SWP_OFFSET_MASK ((1UL << SWP_TYPE_SHIFT) - 1)
| ^
include/linux/swapops.h:27:45: note: expanded from macro 'SWP_TYPE_SHIFT'
27 | #define SWP_TYPE_SHIFT (BITS_PER_XA_VALUE - MAX_SWAPFILES_SHIFT)
| ^
include/linux/swapops.h:100:23: error: use of undeclared identifier 'MAX_SWAPFILES_SHIFT'
100 | return (entry.val >> SWP_TYPE_SHIFT);
| ^
include/linux/swapops.h:27:45: note: expanded from macro 'SWP_TYPE_SHIFT'
27 | #define SWP_TYPE_SHIFT (BITS_PER_XA_VALUE - MAX_SWAPFILES_SHIFT)
| ^
include/linux/swapops.h:109:21: error: use of undeclared identifier 'MAX_SWAPFILES_SHIFT'
109 | return entry.val & SWP_OFFSET_MASK;
| ^
include/linux/swapops.h:28:34: note: expanded from macro 'SWP_OFFSET_MASK'
28 | #define SWP_OFFSET_MASK ((1UL << SWP_TYPE_SHIFT) - 1)
| ^
include/linux/swapops.h:27:45: note: expanded from macro 'SWP_TYPE_SHIFT'
27 | #define SWP_TYPE_SHIFT (BITS_PER_XA_VALUE - MAX_SWAPFILES_SHIFT)
| ^
>> include/linux/swapops.h:395:19: error: use of undeclared identifier 'SWP_PTE_MARKER'
395 | return swp_entry(SWP_PTE_MARKER, marker);
| ^
include/linux/swapops.h:448:15: error: use of undeclared identifier 'MAX_SWAPFILES_SHIFT'
448 | BUILD_BUG_ON(SWP_TYPE_SHIFT < SWP_PFN_BITS);
| ^
include/linux/swapops.h:27:45: note: expanded from macro 'SWP_TYPE_SHIFT'
27 | #define SWP_TYPE_SHIFT (BITS_PER_XA_VALUE - MAX_SWAPFILES_SHIFT)
| ^
include/linux/swapops.h:491:28: error: use of undeclared identifier 'MAX_SWAPFILES'
491 | return swp_type(entry) >= MAX_SWAPFILES;
| ^
7 errors generated.
vim +/MAX_SWAPFILES_SHIFT +90 include/linux/swapops.h
099dd6878b9b12 Peter Xu 2021-06-15 82
^1da177e4c3f41 Linus Torvalds 2005-04-16 83 /*
^1da177e4c3f41 Linus Torvalds 2005-04-16 84 * Store a type+offset into a swp_entry_t in an arch-independent format
^1da177e4c3f41 Linus Torvalds 2005-04-16 85 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 86 static inline swp_entry_t swp_entry(unsigned long type, pgoff_t offset)
^1da177e4c3f41 Linus Torvalds 2005-04-16 87 {
^1da177e4c3f41 Linus Torvalds 2005-04-16 88 swp_entry_t ret;
^1da177e4c3f41 Linus Torvalds 2005-04-16 89
3159f943aafdba Matthew Wilcox 2017-11-03 @90 ret.val = (type << SWP_TYPE_SHIFT) | (offset & SWP_OFFSET_MASK);
^1da177e4c3f41 Linus Torvalds 2005-04-16 91 return ret;
^1da177e4c3f41 Linus Torvalds 2005-04-16 92 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 93
^1da177e4c3f41 Linus Torvalds 2005-04-16 94 /*
^1da177e4c3f41 Linus Torvalds 2005-04-16 95 * Extract the `type' field from a swp_entry_t. The swp_entry_t is in
^1da177e4c3f41 Linus Torvalds 2005-04-16 96 * arch-independent format
^1da177e4c3f41 Linus Torvalds 2005-04-16 97 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 98 static inline unsigned swp_type(swp_entry_t entry)
^1da177e4c3f41 Linus Torvalds 2005-04-16 99 {
3159f943aafdba Matthew Wilcox 2017-11-03 100 return (entry.val >> SWP_TYPE_SHIFT);
^1da177e4c3f41 Linus Torvalds 2005-04-16 101 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 102
^1da177e4c3f41 Linus Torvalds 2005-04-16 103 /*
^1da177e4c3f41 Linus Torvalds 2005-04-16 104 * Extract the `offset' field from a swp_entry_t. The swp_entry_t is in
^1da177e4c3f41 Linus Torvalds 2005-04-16 105 * arch-independent format
^1da177e4c3f41 Linus Torvalds 2005-04-16 106 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 107 static inline pgoff_t swp_offset(swp_entry_t entry)
^1da177e4c3f41 Linus Torvalds 2005-04-16 108 {
3159f943aafdba Matthew Wilcox 2017-11-03 @109 return entry.val & SWP_OFFSET_MASK;
^1da177e4c3f41 Linus Torvalds 2005-04-16 110 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 111
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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