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Message-ID: <202408162056.MQnreTgK-lkp@intel.com>
Date: Fri, 16 Aug 2024 20:44:27 +0800
From: kernel test robot <lkp@...el.com>
To: Kanchana P Sridhar <kanchana.p.sridhar@...el.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	hannes@...xchg.org, yosryahmed@...gle.com, nphamcs@...il.com,
	ryan.roberts@....com, ying.huang@...el.com, 21cnbao@...il.com,
	akpm@...ux-foundation.org
Cc: oe-kbuild-all@...ts.linux.dev, nanhai.zou@...el.com,
	wajdi.k.feghali@...el.com, vinodh.gopal@...el.com,
	kanchana.p.sridhar@...el.com
Subject: Re: [PATCH v2 4/4] mm: swap: Count successful mTHP ZSWAP stores in
 sysfs mTHP stats.

Hi Kanchana,

kernel test robot noticed the following build errors:

[auto build test ERROR on linus/master]
[also build test ERROR on v6.11-rc3]
[cannot apply to akpm-mm/mm-everything next-20240816]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

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/20240816-134948
base:   linus/master
patch link:    https://lore.kernel.org/r/20240816054805.5201-5-kanchana.p.sridhar%40intel.com
patch subject: [PATCH v2 4/4] mm: swap: Count successful mTHP ZSWAP stores in sysfs mTHP stats.
config: i386-buildonly-randconfig-005-20240816 (https://download.01.org/0day-ci/archive/20240816/202408162056.MQnreTgK-lkp@intel.com/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/20240816/202408162056.MQnreTgK-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408162056.MQnreTgK-lkp@intel.com/

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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