Hi tangmeng, Thank you for the patch! Yet something to improve: [auto build test ERROR on hnaz-mm/master] [also build test ERROR on deller-parisc/for-next rostedt-trace/for-next linus/master v5.17-rc5 next-20220217] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/tangmeng/kernel-parisc-move-soft-power-sysctl-to-its-own-file/20220220-174553 base: https://github.com/hnaz/linux-mm master config: parisc-randconfig-s031-20220220 (https://download.01.org/0day-ci/archive/20220221/202202211342.EcgL15uq-lkp@xxxxxxxxx/config) compiler: hppa-linux-gcc (GCC) 11.2.0 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: v0.6.4-dirty # https://github.com/0day-ci/linux/commit/fc2d0c0a37a34fd9c89e5519f2aea93de690c2ce git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review tangmeng/kernel-parisc-move-soft-power-sysctl-to-its-own-file/20220220-174553 git checkout fc2d0c0a37a34fd9c89e5519f2aea93de690c2ce # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=parisc SHELL=/bin/bash drivers/parisc/ mm/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> drivers/parisc/power.c:196:12: error: static declaration of 'pwrsw_enabled' follows non-static declaration 196 | static int pwrsw_enabled; | ^~~~~~~~~~~~~ drivers/parisc/power.c:112:5: note: previous definition of 'pwrsw_enabled' with type 'int' 112 | int pwrsw_enabled __read_mostly = 1; | ^~~~~~~~~~~~~ vim +/pwrsw_enabled +196 drivers/parisc/power.c 195 > 196 static int pwrsw_enabled; 197 #ifdef CONFIG_SYSCTL 198 static struct ctl_table kern_parisc_power_table[] = { 199 { 200 .procname = "soft-power", 201 .data = &pwrsw_enabled, 202 .maxlen = sizeof(int), 203 .mode = 0644, 204 .proc_handler = proc_dointvec, 205 }, 206 { } 207 }; 208 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx