Re: [PATCH v2 01/20] mm/zsmalloc: add zpdesc memory descriptor for zswap.zpool

[kernel test robot]

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-001-20240705 (https://download.01.org/0day-ci/archive/20240705/202407052114.eLXLN20k-lkp@xxxxxxxxx/config)
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240705/202407052114.eLXLN20k-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/202407052114.eLXLN20k-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from include/linux/container_of.h:5,
                    from include/linux/list.h:5,
                    from include/linux/module.h:12,
                    from mm/zsmalloc.c:40:
>> include/linux/stddef.h:16:33: error: 'struct page' has no member named 'memcg_data'
      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)
         |                                                        ^~~~
   mm/zpdesc.h:40:9: note: in expansion of macro 'static_assert'
      40 |         static_assert(offsetof(struct page, pg) == offsetof(struct zpdesc, zp))
         |         ^~~~~~~~~~~~~
   mm/zpdesc.h:40:23: note: in expansion of macro 'offsetof'
      40 |         static_assert(offsetof(struct page, pg) == offsetof(struct zpdesc, zp))
         |                       ^~~~~~~~
   mm/zpdesc.h:48:1: note: in expansion of macro 'ZPDESC_MATCH'
      48 | ZPDESC_MATCH(memcg_data, memcg_data);
         | ^~~~~~~~~~~~
>> include/linux/stddef.h:16:33: error: 'struct zpdesc' has no member named 'memcg_data'
      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)
         |                                                        ^~~~
   mm/zpdesc.h:40:9: note: in expansion of macro 'static_assert'
      40 |         static_assert(offsetof(struct page, pg) == offsetof(struct zpdesc, zp))
         |         ^~~~~~~~~~~~~
   mm/zpdesc.h:40:52: note: in expansion of macro 'offsetof'
      40 |         static_assert(offsetof(struct page, pg) == offsetof(struct zpdesc, zp))
         |                                                    ^~~~~~~~
   mm/zpdesc.h:48:1: note: in expansion of macro 'ZPDESC_MATCH'
      48 | ZPDESC_MATCH(memcg_data, 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)
         |                                                        ^~~~
   mm/zpdesc.h:40:9: note: in expansion of macro 'static_assert'
      40 |         static_assert(offsetof(struct page, pg) == offsetof(struct zpdesc, zp))
         |         ^~~~~~~~~~~~~
   mm/zpdesc.h:40:23: note: in expansion of macro 'offsetof'
      40 |         static_assert(offsetof(struct page, pg) == offsetof(struct zpdesc, zp))
         |                       ^~~~~~~~
   mm/zpdesc.h:48:1: note: in expansion of macro 'ZPDESC_MATCH'
      48 | ZPDESC_MATCH(memcg_data, memcg_data);
         | ^~~~~~~~~~~~


vim +16 include/linux/stddef.h

6e2182874324727 Richard Knutsson 2006-09-30  14  
^1da177e4c3f415 Linus Torvalds   2005-04-16  15  #undef offsetof
14e83077d55ff4b Rasmus Villemoes 2022-03-23 @16  #define offsetof(TYPE, MEMBER)	__builtin_offsetof(TYPE, MEMBER)
3876488444e7123 Denys Vlasenko   2015-03-09  17  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki