tree: https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git quotaoff-cleanups-5.14 head: 6337f6e913ea464634f1582db813250e7be01438 commit: 5917b981c20de6ebc9bd1e44f7148b868c186627 [15/20] xfs: don't crash with assfail config: riscv-randconfig-c004-20210520 (attached as .config) compiler: riscv64-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 # https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git/comm... git remote add djwong-xfs https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git git fetch --no-tags djwong-xfs quotaoff-cleanups-5.14 git checkout 5917b981c20de6ebc9bd1e44f7148b868c186627 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv 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/kexec.h:28, from include/linux/ima.h:13, from fs/open.c:32: 45 | const extern unsigned char riscv_kexec_relocate[]; | ^~~~~ arch/riscv/include/asm/kexec.h:46:1: error: 'extern' is not at beginning of declaration [-Werror=old-style-declaration] 46 | const extern unsigned int riscv_kexec_relocate_size; | ^~~~~ cc1: all warnings being treated as errors Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for LOCKDEP Depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT && (FRAME_POINTER || MIPS || PPC || S390 || MICROBLAZE || ARM || ARC || X86) Selected by - PROVE_LOCKING && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT - LOCK_STAT && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT - DEBUG_LOCK_ALLOC && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT vim +/extern +45 arch/riscv/include/asm/kexec.h fba8a8674f68a0 Nick Kossifidis 2021-04-19 44 fba8a8674f68a0 Nick Kossifidis 2021-04-19 @45 const extern unsigned char riscv_kexec_relocate[]; fba8a8674f68a0 Nick Kossifidis 2021-04-19 46 const extern unsigned int riscv_kexec_relocate_size; fba8a8674f68a0 Nick Kossifidis 2021-04-19 47 :::::: The code at line 45 was first introduced by commit :::::: fba8a8674f68a0628abae470dfcfbcb4a0d7a79e RISC-V: Add kexec support :::::: TO: Nick Kossifidis <mick(a)ics.forth.gr&gt; :::::: CC: Palmer Dabbelt <palmerdabbelt(a)google.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org