tree: https://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git next head: 3cf7227ba765babbcee59c572cd54bda019af183 commit: 68f6b351cf93faf6977a623ef5b2913a8064d67f [5/13] efi/x86: split off some old memmap handling into separate routines reproduce: # apt-get install sparse # sparse version: v0.6.1-129-g341daf20-dirty git checkout 68f6b351cf93faf6977a623ef5b2913a8064d67f 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/platform/efi/efi_64.c:77:7: sparse: sparse: symbol 'efi_old_memmap_phys_prolog' 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/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation