Re: [PATCH] mm: hugetlb: independent PMD page table shared count

[kernel test robot <lkp@intel.com>]

Hi Liu,

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/Liu-Shixin/mm-hugetlb-independent-PMD-page-table-shared-count/20241214-184912
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20241214104401.1052550-1-liushixin2%40huawei.com
patch subject: [PATCH] mm: hugetlb: independent PMD page table shared count
config: i386-buildonly-randconfig-006-20241215 (https://download.01.org/0day-ci/archive/20241215/202412151253.G1eTYt78-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241215/202412151253.G1eTYt78-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/202412151253.G1eTYt78-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/x86/kernel/asm-offsets.c:14:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:21:
>> include/linux/mm.h:3192:21: error: called object type 'void *' is not a function or function pointer
    3192 |         ptdesc_pmd_pts_init(ptdesc);
         |         ~~~~~~~~~~~~~~~~~~~^
   1 error generated.
   make[3]: *** [scripts/Makefile.build:102: arch/x86/kernel/asm-offsets.s] Error 1 shuffle=1966107866
   make[3]: Target 'prepare' not remade because of errors.
   make[2]: *** [Makefile:1263: prepare0] Error 2 shuffle=1966107866
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:251: __sub-make] Error 2 shuffle=1966107866
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:251: __sub-make] Error 2 shuffle=1966107866
   make: Target 'prepare' not remade because of errors.


vim +3192 include/linux/mm.h

  3184	
  3185	static inline bool pagetable_pmd_ctor(struct ptdesc *ptdesc)
  3186	{
  3187		struct folio *folio = ptdesc_folio(ptdesc);
  3188	
  3189		if (!pmd_ptlock_init(ptdesc))
  3190			return false;
  3191		__folio_set_pgtable(folio);
> 3192		ptdesc_pmd_pts_init(ptdesc);
  3193		lruvec_stat_add_folio(folio, NR_PAGETABLE);
  3194		return true;
  3195	}
  3196	

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