tree: https://git.kernel.org/pub/scm/linux/kernel/git/geoff/ps3-linux.git ps3-queue head: 784f61fd740337e12f18566eb27e93ececfaa3d6 commit: 7ccac6e8a71db8e2c9c2fa88b5286dda2cab4975 [4/15] powerpc/ps3: Add firmware version to proc config: powerpc64-randconfig-s031-20210522 (attached as .config) compiler: powerpc64-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: v0.6.3-341-g8af24329-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/geoff/ps3-linux.git/commi... git remote add ps3 https://git.kernel.org/pub/scm/linux/kernel/git/geoff/ps3-linux.git git fetch --no-tags ps3 ps3-queue git checkout 7ccac6e8a71db8e2c9c2fa88b5286dda2cab4975 # 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__' W=1 ARCH=powerpc64 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 >>): arch/powerpc/platforms/ps3/setup.c: In function 'ps3_setup_proc': 209 | static const struct proc_ops proc_ops = { | ^~~~~~~~ At top level: cc1: all warnings being treated as errors vim +/proc_ops +209 arch/powerpc/platforms/ps3/setup.c 206 207 static int __init ps3_setup_proc(void) 208 { 210 .proc_read = ps3_fw_ver_read, 211 .proc_lseek = default_llseek, 212 }; 213 struct proc_dir_entry *entry; 214 215 entry = proc_mkdir("ps3", NULL); 216 217 if (!entry) { 218 pr_err("%s:%d: failed.\n", __func__, __LINE__); 219 return 1; 220 } 221 222 entry = proc_create_data("ps3/firmware-version", S_IFREG | 0444, NULL, 223 &proc_ops, NULL); 224 225 if (!entry) { 226 pr_err("%s:%d: failed.\n", __func__, __LINE__); 227 return 1; 228 } 229 230 proc_set_size(entry, strlen(ps3_firmware_version_str)); 231 232 pr_debug("%s:%d: '%s' = %zd bytes\n", __func__, __LINE__, 233 ps3_firmware_version_str, strlen(ps3_firmware_version_str)); 234 235 return 0; 236 } 237 core_initcall(ps3_setup_proc); 238 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org