tree: https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git arm64/set_fs-removal head: 670f25a8d0e17795ab49689a2bb8381755b9ec0c commit: bb1b4161c9f4ac72305d39119e5a57d538375d5c [1/8] arm64/sdei: don't reuse orig_addr_limit config: i386-randconfig-s001-20200921 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-201-g24bdaac6-dirty git checkout bb1b4161c9f4ac72305d39119e5a57d538375d5c # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from drivers/acpi/apei/ghes.c:20: 10 | #include <asm/sdei.h> | ^~~~~~~~~~~~ compilation terminated. # https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/commit/?id... git remote add mark-rutland https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git git fetch --no-tags mark-rutland arm64/set_fs-removal git checkout bb1b4161c9f4ac72305d39119e5a57d538375d5c vim +10 include/linux/arm_sdei.h f9f05395f384ee James Morse 2019-01-29 9 ad6eb31ef90355 James Morse 2018-01-08 @10 #include <asm/sdei.h> ad6eb31ef90355 James Morse 2018-01-08 11 :::::: The code at line 10 was first introduced by commit :::::: ad6eb31ef90355993eb55ff77e0e855ae7d91e4c firmware: arm_sdei: Add driver for Software Delegated Exceptions :::::: TO: James Morse <james.morse(a)arm.com&gt; :::::: CC: Catalin Marinas <catalin.marinas(a)arm.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org