Hi, 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/alexs-kernel-org/mm-zsmalloc-add-zpdesc-memory-descriptor-for-zswap-zpool/20240703-182314 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20240703040613.681396-2-alexs%40kernel.org patch subject: [PATCH v2 01/20] mm/zsmalloc: add zpdesc memory descriptor for zswap.zpool config: i386-buildonly-randconfig-004-20240705 (https://download.01.org/0day-ci/archive/20240705/202407052121.e5LTYhXc-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/20240705/202407052121.e5LTYhXc-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/202407052121.e5LTYhXc-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from mm/zsmalloc.c:65: >> mm/zpdesc.h:48:1: error: no member named 'memcg_data' in 'page' 48 | ZPDESC_MATCH(memcg_data, memcg_data); | ^ ~~~~~~~~~~ mm/zpdesc.h:40:16: note: expanded from macro 'ZPDESC_MATCH' 40 | static_assert(offsetof(struct page, pg) == offsetof(struct zpdesc, zp)) | ^ ~~ include/linux/stddef.h:16:32: note: expanded from macro 'offsetof' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^ ~~~~~~ include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert' 77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) | ^~~~ include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ In file included from mm/zsmalloc.c:65: >> mm/zpdesc.h:48:1: error: no member named 'memcg_data' in 'zpdesc' 48 | ZPDESC_MATCH(memcg_data, memcg_data); | ^ ~~~~~~~~~~ mm/zpdesc.h:40:45: note: expanded from macro 'ZPDESC_MATCH' 40 | static_assert(offsetof(struct page, pg) == offsetof(struct zpdesc, zp)) | ^ ~~ include/linux/stddef.h:16:32: note: expanded from macro 'offsetof' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^ ~~~~~~ include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert' 77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) | ^~~~ include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ 2 errors generated. vim +48 mm/zpdesc.h 9 10 /* 11 * struct zpdesc - Memory descriptor for zpool memory, now is for zsmalloc 12 * @flags: Page flags, PG_private: identifies the first component page 13 * @lru: Indirectly used by page migration 14 * @mops: Used by page migration 15 * @next: Next zpdesc in a zspage in zsmalloc zpool 16 * @handle: For huge zspage in zsmalloc zpool 17 * @zspage: Pointer to zspage in zsmalloc 18 * @memcg_data: Memory Control Group data. 19 * 20 * This struct overlays struct page for now. Do not modify without a good 21 * understanding of the issues. 22 */ 23 struct zpdesc { 24 unsigned long flags; 25 struct list_head lru; 26 struct movable_operations *mops; 27 union { 28 /* Next zpdescs in a zspage in zsmalloc zpool */ 29 struct zpdesc *next; 30 /* For huge zspage in zsmalloc zpool */ 31 unsigned long handle; 32 }; 33 struct zspage *zspage; 34 unsigned long _zp_pad_1; 35 #ifdef CONFIG_SLAB_OBJ_EXT 36 unsigned long memcg_data; 37 #endif 38 }; 39 #define ZPDESC_MATCH(pg, zp) \ 40 static_assert(offsetof(struct page, pg) == offsetof(struct zpdesc, zp)) 41 42 ZPDESC_MATCH(flags, flags); 43 ZPDESC_MATCH(lru, lru); 44 ZPDESC_MATCH(mapping, mops); 45 ZPDESC_MATCH(index, next); 46 ZPDESC_MATCH(index, handle); 47 ZPDESC_MATCH(private, zspage); > 48 ZPDESC_MATCH(memcg_data, memcg_data); 49 #undef ZPDESC_MATCH 50 static_assert(sizeof(struct zpdesc) <= sizeof(struct page)); 51 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
