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@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/20240816/202408162056.MQnreTgK-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/202408162056.MQnreTgK-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
