tree: https://github.com/zen-kernel/zen-kernel 5.8/zen-sauce head: 4ae00f4cbefe933616f33bf79935393ec49dbfa3 commit: 5664a4e6b6af231e79f53494742a7d7a08ba72d7 [2/26] ZEN: Add VHBA driver config: h8300-allyesconfig (attached as .config) compiler: h8300-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 5664a4e6b6af231e79f53494742a7d7a08ba72d7 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=h8300 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 include/linux/init.h:5, from drivers/scsi/vhba/vhba.c:23: include/linux/scatterlist.h: In function 'sg_set_buf': 93 | #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ | ^~ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~ include/linux/scatterlist.h:143:10: note: in expansion of macro 'virt_addr_valid' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~~~~~~~~~~ In file included from drivers/scsi/vhba/vhba.c:42: drivers/scsi/vhba/vhba.c: At top level: drivers/scsi/vhba/vhba.c:483:15: error: no previous prototype for 'vhba_queuecommand' [-Werror=missing-prototypes] 483 | DEF_SCSI_QCMD(vhba_queuecommand) | ^~~~~~~~~~~~~~~~~ include/scsi/scsi_host.h:495:6: note: in definition of macro 'DEF_SCSI_QCMD' 495 | int func_name(struct Scsi_Host *shost, struct scsi_cmnd *cmd) \ | ^~~~~~~~~ cc1: all warnings being treated as errors # https://github.com/zen-kernel/zen-kernel/commit/5664a4e6b6af231e79f534947... git remote add zen-kernel-zen-kernel https://github.com/zen-kernel/zen-kernel git fetch --no-tags zen-kernel-zen-kernel 5.8/zen-sauce git checkout 5664a4e6b6af231e79f53494742a7d7a08ba72d7 vim +93 include/asm-generic/page.h 5c01b46bb6bb8f2 Arnd Bergmann 2009-05-13 92 5c01b46bb6bb8f2 Arnd Bergmann 2009-05-13 @93 #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ 5c01b46bb6bb8f2 Arnd Bergmann 2009-05-13 94 ((void *)(kaddr) < (void *)memory_end)) 5c01b46bb6bb8f2 Arnd Bergmann 2009-05-13 95 :::::: The code at line 93 was first introduced by commit :::::: 5c01b46bb6bb8f2662573c05c87b5d68fa25af89 asm-generic: add generic NOMMU versions of some headers :::::: TO: Arnd Bergmann <arnd(a)arndb.de&gt; :::::: CC: Arnd Bergmann <arnd(a)klappe2.(none)&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org