tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: bdffb18b5dd8071cd25685b966f380a30b1fadaa commit: 4d448d6c17c1bb5041ede2dcf2bf20e4a153fd4d [6109/6443] pgtable: create struct ptdesc config: xtensa-nommu_kc705_defconfig (https://download.01.org/0day-ci/archive/20230806/202308061331.VqEtceSZ-lkp@xxxxxxxxx/config) compiler: xtensa-de212-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230806/202308061331.VqEtceSZ-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/202308061331.VqEtceSZ-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from arch/xtensa/include/asm/io.h:19, from include/linux/io.h:13, from lib/iomap_copy.c:7: include/linux/pgtable.h:1041:5: warning: "ALLOC_SPLIT_PTLOCKS" is not defined, evaluates to 0 [-Wundef] 1041 | #if ALLOC_SPLIT_PTLOCKS | ^~~~~~~~~~~~~~~~~~~ >> include/linux/pgtable.h:1044:17: error: unknown type name 'spinlock_t' 1044 | spinlock_t ptl; | ^~~~~~~~~~ In file included from include/linux/init.h:5, from include/linux/io.h:10: >> include/linux/stddef.h:16:33: error: invalid use of undefined type 'struct page' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1056:1: note: in expansion of macro 'TABLE_MATCH' 1056 | TABLE_MATCH(flags, __page_flags); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: expression in static assertion is not an integer 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1056:1: note: in expansion of macro 'TABLE_MATCH' 1056 | TABLE_MATCH(flags, __page_flags); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: invalid use of undefined type 'struct page' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1057:1: note: in expansion of macro 'TABLE_MATCH' 1057 | TABLE_MATCH(compound_head, pt_list); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: expression in static assertion is not an integer 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1057:1: note: in expansion of macro 'TABLE_MATCH' 1057 | TABLE_MATCH(compound_head, pt_list); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: invalid use of undefined type 'struct page' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1058:1: note: in expansion of macro 'TABLE_MATCH' 1058 | TABLE_MATCH(compound_head, _pt_pad_1); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: expression in static assertion is not an integer 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1058:1: note: in expansion of macro 'TABLE_MATCH' 1058 | TABLE_MATCH(compound_head, _pt_pad_1); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: invalid use of undefined type 'struct page' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1059:1: note: in expansion of macro 'TABLE_MATCH' 1059 | TABLE_MATCH(pmd_huge_pte, pmd_huge_pte); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: expression in static assertion is not an integer 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1059:1: note: in expansion of macro 'TABLE_MATCH' 1059 | TABLE_MATCH(pmd_huge_pte, pmd_huge_pte); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: invalid use of undefined type 'struct page' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1060:1: note: in expansion of macro 'TABLE_MATCH' 1060 | TABLE_MATCH(mapping, __page_mapping); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: expression in static assertion is not an integer 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1060:1: note: in expansion of macro 'TABLE_MATCH' 1060 | TABLE_MATCH(mapping, __page_mapping); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: invalid use of undefined type 'struct page' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1061:1: note: in expansion of macro 'TABLE_MATCH' 1061 | TABLE_MATCH(pt_mm, pt_mm); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: expression in static assertion is not an integer 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1061:1: note: in expansion of macro 'TABLE_MATCH' 1061 | TABLE_MATCH(pt_mm, pt_mm); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: invalid use of undefined type 'struct page' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1062:1: note: in expansion of macro 'TABLE_MATCH' 1062 | TABLE_MATCH(ptl, ptl); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: expression in static assertion is not an integer 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1062:1: note: in expansion of macro 'TABLE_MATCH' 1062 | TABLE_MATCH(ptl, ptl); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: invalid use of undefined type 'struct page' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1063:1: note: in expansion of macro 'TABLE_MATCH' 1063 | TABLE_MATCH(rcu_head, pt_rcu_head); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: expression in static assertion is not an integer 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1063:1: note: in expansion of macro 'TABLE_MATCH' 1063 | TABLE_MATCH(rcu_head, pt_rcu_head); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: invalid use of undefined type 'struct page' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1064:1: note: in expansion of macro 'TABLE_MATCH' 1064 | TABLE_MATCH(page_type, __page_type); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: expression in static assertion is not an integer 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1064:1: note: in expansion of macro 'TABLE_MATCH' 1064 | TABLE_MATCH(page_type, __page_type); | ^~~~~~~~~~~ >> include/linux/stddef.h:16:33: error: invalid use of undefined type 'struct page' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1065:1: note: in expansion of macro 'TABLE_MATCH' 1065 | TABLE_MATCH(_refcount, _refcount); | ^~~~~~~~~~~ include/linux/stddef.h:16:33: error: expression in static assertion is not an integer 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1065:1: note: in expansion of macro 'TABLE_MATCH' 1065 | TABLE_MATCH(_refcount, _refcount); | ^~~~~~~~~~~ include/linux/stddef.h:16:33: error: invalid use of undefined type 'struct page' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1067:1: note: in expansion of macro 'TABLE_MATCH' 1067 | TABLE_MATCH(memcg_data, pt_memcg_data); | ^~~~~~~~~~~ include/linux/stddef.h:16:33: error: expression in static assertion is not an integer 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1055:9: note: in expansion of macro 'static_assert' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~~~~~~ include/linux/pgtable.h:1055:23: note: in expansion of macro 'offsetof' 1055 | static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) | ^~~~~~~~ include/linux/pgtable.h:1067:1: note: in expansion of macro 'TABLE_MATCH' 1067 | TABLE_MATCH(memcg_data, pt_memcg_data); | ^~~~~~~~~~~ include/linux/pgtable.h:1070:47: error: invalid application of 'sizeof' to incomplete type 'struct page' 1070 | static_assert(sizeof(struct ptdesc) <= sizeof(struct page)); | ^~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1070:1: note: in expansion of macro 'static_assert' 1070 | static_assert(sizeof(struct ptdesc) <= sizeof(struct page)); | ^~~~~~~~~~~~~ include/linux/pgtable.h:1070:15: error: expression in static assertion is not an integer 1070 | static_assert(sizeof(struct ptdesc) <= sizeof(struct page)); | ^~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/pgtable.h:1070:1: note: in expansion of macro 'static_assert' 1070 | static_assert(sizeof(struct ptdesc) <= sizeof(struct page)); | ^~~~~~~~~~~~~ vim +/spinlock_t +1044 include/linux/pgtable.h 1000 1001 1002 /** 1003 * struct ptdesc - Memory descriptor for page tables. 1004 * @__page_flags: Same as page flags. Unused for page tables. 1005 * @pt_rcu_head: For freeing page table pages. 1006 * @pt_list: List of used page tables. Used for s390 and x86. 1007 * @_pt_pad_1: Padding that aliases with page's compound head. 1008 * @pmd_huge_pte: Protected by ptdesc->ptl, used for THPs. 1009 * @__page_mapping: Aliases with page->mapping. Unused for page tables. 1010 * @pt_mm: Used for x86 pgds. 1011 * @pt_frag_refcount: For fragmented page table tracking. Powerpc and s390 only. 1012 * @_pt_pad_2: Padding to ensure proper alignment. 1013 * @ptl: Lock for the page table. 1014 * @__page_type: Same as page->page_type. Unused for page tables. 1015 * @_refcount: Same as page refcount. Used for s390 page tables. 1016 * @pt_memcg_data: Memcg data. Tracked for page tables here. 1017 * 1018 * This struct overlays struct page for now. Do not modify without a good 1019 * understanding of the issues. 1020 */ 1021 struct ptdesc { 1022 unsigned long __page_flags; 1023 1024 union { 1025 struct rcu_head pt_rcu_head; 1026 struct list_head pt_list; 1027 struct { 1028 unsigned long _pt_pad_1; 1029 pgtable_t pmd_huge_pte; 1030 }; 1031 }; 1032 unsigned long __page_mapping; 1033 1034 union { 1035 struct mm_struct *pt_mm; 1036 atomic_t pt_frag_refcount; 1037 }; 1038 1039 union { 1040 unsigned long _pt_pad_2; 1041 #if ALLOC_SPLIT_PTLOCKS 1042 spinlock_t *ptl; 1043 #else > 1044 spinlock_t ptl; 1045 #endif 1046 }; 1047 unsigned int __page_type; 1048 atomic_t _refcount; 1049 #ifdef CONFIG_MEMCG 1050 unsigned long pt_memcg_data; 1051 #endif 1052 }; 1053 1054 #define TABLE_MATCH(pg, pt) \ 1055 static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) 1056 TABLE_MATCH(flags, __page_flags); 1057 TABLE_MATCH(compound_head, pt_list); 1058 TABLE_MATCH(compound_head, _pt_pad_1); 1059 TABLE_MATCH(pmd_huge_pte, pmd_huge_pte); 1060 TABLE_MATCH(mapping, __page_mapping); 1061 TABLE_MATCH(pt_mm, pt_mm); 1062 TABLE_MATCH(ptl, ptl); 1063 TABLE_MATCH(rcu_head, pt_rcu_head); 1064 TABLE_MATCH(page_type, __page_type); 1065 TABLE_MATCH(_refcount, _refcount); 1066 #ifdef CONFIG_MEMCG 1067 TABLE_MATCH(memcg_data, pt_memcg_data); 1068 #endif 1069 #undef TABLE_MATCH > 1070 static_assert(sizeof(struct ptdesc) <= sizeof(struct page)); 1071 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
