tree: https://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux.git x86 head: c1878269c84ce9814256651fb46c284cf372a444 commit: ae18cd4e0b58f2e077ea6b767547fc811da5b327 [15/18] x86 topology: create topology_max_die_per_package reproduce: # apt-get install sparse git checkout ae18cd4e0b58f2e077ea6b767547fc811da5b327 make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> arch/x86/kernel/smpboot.c:1417:13: sparse: sparse: symbol 'calculate_max_logical_die' was not declared. Should it be static? Please review and possibly fold the followup patch. --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation