tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: b3a3cbdec55b090d22a09f75efb7c7d34cb97f25 commit: ee61fd55dbcecb65f7abcf012b342e60c44c92a5 [2196/3956] riscv: Add kprobes supported config: riscv-randconfig-s032-20210115 (attached as .config) compiler: riscv32-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-208-g46a52ca4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout ee61fd55dbcecb65f7abcf012b342e60c44c92a5 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; "sparse warnings: (new ones prefixed by >>)" -- vim +19 arch/riscv/kernel/probes/decode-insn.c 11 12 /* Return: 13 * INSN_REJECTED If instruction is one not allowed to kprobe, 14 * INSN_GOOD_NO_SLOT If instruction is supported but doesn't use its slot. 15 */ 16 enum probe_insn __kprobes 17 riscv_probe_decode_insn(probe_opcode_t *addr, struct arch_probe_insn *api) 18 { --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org