Re: [PATCH v3 4/4] mm: swap: Count successful mTHP ZSWAP stores in sysfs mTHP stats.

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Hi Kanchana,

kernel test robot noticed the following build errors:

[auto build test ERROR on 7c626ce4bae1ac14f60076d00eafe71af30450ba]

url:    https://github.com/intel-lab-lkp/linux/commits/Kanchana-P-Sridhar/mm-zswap-zswap_is_folio_same_filled-takes-an-index-in-the-folio/20240817-131053
base:   7c626ce4bae1ac14f60076d00eafe71af30450ba
patch link:    https://lore.kernel.org/r/20240817050921.18462-5-kanchana.p.sridhar%40intel.com
patch subject: [PATCH v3 4/4] mm: swap: Count successful mTHP ZSWAP stores in sysfs mTHP stats.
config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20240818/202408180729.M6uZh634-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240818/202408180729.M6uZh634-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/202408180729.M6uZh634-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   mm/page_io.c: In function 'count_mthp_zswpout_vm_event':
>> mm/page_io.c:178:17: error: implicit declaration of function 'count_mthp_stat' [-Werror=implicit-function-declaration]
     178 |                 count_mthp_stat(folio_order(folio), MTHP_STAT_ZSWPOUT);
         |                 ^~~~~~~~~~~~~~~
>> mm/page_io.c:178:53: error: 'MTHP_STAT_ZSWPOUT' undeclared (first use in this function)
     178 |                 count_mthp_stat(folio_order(folio), MTHP_STAT_ZSWPOUT);
         |                                                     ^~~~~~~~~~~~~~~~~
   mm/page_io.c:178:53: note: each undeclared identifier is reported only once for each function it appears in
   cc1: some warnings being treated as errors


vim +/count_mthp_stat +178 mm/page_io.c

   174	
   175	static inline void count_mthp_zswpout_vm_event(struct folio *folio)
   176	{
   177		if (IS_ENABLED(CONFIG_THP_SWAP))
 > 178			count_mthp_stat(folio_order(folio), MTHP_STAT_ZSWPOUT);
   179	}
   180	

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




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