tree: https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git 20211118-sysctl-cleanups-set-04-v2 head: 3110d41a56792588bd2f64621080948b0fceb6ab commit: 0de3e8b302495fb40dbdeec425d577618b3be169 [1/36] sysctl: add a new register_sysctl_init() interface config: nds32-allnoconfig (attached as .config) compiler: nds32le-linux-gcc (GCC) 11.2.0 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/mcgrof/linux-next.git/com... git remote add mcgrof-next https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git git fetch --no-tags mcgrof-next 20211118-sysctl-cleanups-set-04-v2 git checkout 0de3e8b302495fb40dbdeec425d577618b3be169 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=nds32 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 >>): fs/proc/proc_sysctl.c: In function '__register_sysctl_init': 1415 | kmemleak_not_leak(hdr); | ^~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/kmemleak_not_leak +1415 fs/proc/proc_sysctl.c 1386 1387 /** 1388 * __register_sysctl_init() - register sysctl table to path 1389 * @path: path name for sysctl base 1390 * @table: This is the sysctl table that needs to be registered to the path 1391 * @table_name: The name of sysctl table, only used for log printing when 1392 * registration fails 1393 * 1394 * The sysctl interface is used by userspace to query or modify at runtime 1395 * a predefined value set on a variable. These variables however have default 1396 * values pre-set. Code which depends on these variables will always work even 1397 * if register_sysctl() fails. If register_sysctl() fails you'd just loose the 1398 * ability to query or modify the sysctls dynamically at run time. Chances of 1399 * register_sysctl() failing on init are extremely low, and so for both reasons 1400 * this function does not return any error as it is used by initialization code. 1401 * 1402 * Context: Can only be called after sysctl base path has been registered 1403 * It is recommended to call this interface in core_initcall() and 1404 * later initcall(), not in early_initcall() and earlier stages. 1405 */ 1406 void __init __register_sysctl_init(const char *path, struct ctl_table *table, 1407 const char *table_name) 1408 { 1409 struct ctl_table_header *hdr = register_sysctl(path, table); 1410 1411 if (unlikely(!hdr)) { 1412 pr_err("failed when register_sysctl %s to %s\n", table_name, path); 1413 return; 1414 } 1416 } 1417 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org