Re: [PATCH 1/1] mm/slab: mark alloc tags empty for sheafs allocated with __GFP_NO_OBJ_EXT

[kernel test robot]

Hi Suren,

kernel test robot noticed the following build errors:

[auto build test ERROR on 7dff99b354601dd01829e1511711846e04340a69]

url:    https://github.com/intel-lab-lkp/linux/commits/Suren-Baghdasaryan/mm-slab-mark-alloc-tags-empty-for-sheafs-allocated-with-__GFP_NO_OBJ_EXT/20260225-005422
base:   7dff99b354601dd01829e1511711846e04340a69
patch link:    https://lore.kernel.org/r/20260224165250.1322946-1-surenb%40google.com
patch subject: [PATCH 1/1] mm/slab: mark alloc tags empty for sheafs allocated with __GFP_NO_OBJ_EXT
config: nios2-allnoconfig (https://download.01.org/0day-ci/archive/20260225/202602250249.E8I3P4Ig-lkp@xxxxxxxxx/config)
compiler: nios2-linux-gcc (GCC) 11.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260225/202602250249.E8I3P4Ig-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/202602250249.E8I3P4Ig-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   mm/slub.c: In function 'free_empty_sheaf':
>> mm/slub.c:2787:17: error: implicit declaration of function 'mark_objexts_empty' [-Werror=implicit-function-declaration]
    2787 |                 mark_objexts_empty(sheaf);
         |                 ^~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/mark_objexts_empty +2787 mm/slub.c

  2783	
  2784	static void free_empty_sheaf(struct kmem_cache *s, struct slab_sheaf *sheaf)
  2785	{
  2786		if (s->flags & SLAB_KMALLOC)
> 2787			mark_objexts_empty(sheaf);
  2788	
  2789		kfree(sheaf);
  2790	
  2791		stat(s, SHEAF_FREE);
  2792	}
  2793	

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