tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 798d276b39e984345d52b933a900a71fa0815928 commit: 107c863e4e76f52cbbb8772eaf578bfaf3d334d1 [2909/3314] mm,page_owner: filter out stacks by a threshold counter config: i386-randconfig-s003 compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=107c863e4e76f52cbbb8772eaf578bfaf3d334d1 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 107c863e4e76f52cbbb8772eaf578bfaf3d334d1 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 olddefconfig make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202305190358.IEfJNraU-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) mm/page_owner.c:739:30: sparse: sparse: symbol 'page_owner_stack_operations' was not declared. Should it be static? >> mm/page_owner.c:748:5: sparse: sparse: symbol 'page_owner_threshold_get' was not declared. Should it be static? >> mm/page_owner.c:754:5: sparse: sparse: symbol 'page_owner_threshold_set' was not declared. Should it be static? -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki