tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git 20211118-sysctl-cleanups-set-04-v2
head:   3110d41a56792588bd2f64621080948b0fceb6ab
commit: 3110d41a56792588bd2f64621080948b0fceb6ab [36/36] fs: move namespace sysctls and declare fs base directory
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/commit/?id=3110d41a56792588bd2f64621080948b0fceb6ab
        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 3110d41a56792588bd2f64621080948b0fceb6ab
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=nds32 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   fs/namespace.c: In function 'init_fs_namespace_sysctls':
>> fs/namespace.c:4615:77: error: macro "register_sysctl_init" passed 3 arguments, but takes just 2
    4615 |         register_sysctl_init("fs", fs_namespace_sysctls, "namespace_sysctls");
         |                                                                             ^
   In file included from include/linux/key.h:17,
                    from include/linux/cred.h:13,
                    from include/linux/sched/signal.h:10,
                    from include/linux/rcuwait.h:6,
                    from include/linux/percpu-rwsem.h:7,
                    from include/linux/fs.h:33,
                    from include/uapi/linux/aio_abi.h:31,
                    from include/linux/syscalls.h:77,
                    from fs/namespace.c:11:
   include/linux/sysctl.h:233: note: macro "register_sysctl_init" defined here
     233 | #define register_sysctl_init(path, table) __register_sysctl_init(path, table, #table)
         | 
>> fs/namespace.c:4615:9: error: 'register_sysctl_init' undeclared (first use in this function); did you mean 'register_sysctl_paths'?
    4615 |         register_sysctl_init("fs", fs_namespace_sysctls, "namespace_sysctls");
         |         ^~~~~~~~~~~~~~~~~~~~
         |         register_sysctl_paths
   fs/namespace.c:4615:9: note: each undeclared identifier is reported only once for each function it appears in
   At top level:
   fs/namespace.c:4601:25: warning: 'fs_namespace_sysctls' defined but not used [-Wunused-variable]
    4601 | static struct ctl_table fs_namespace_sysctls[] = {
         |                         ^~~~~~~~~~~~~~~~~~~~


vim +/register_sysctl_init +4615 fs/namespace.c

  4612	
  4613	static int __init init_fs_namespace_sysctls(void)
  4614	{
> 4615		register_sysctl_init("fs", fs_namespace_sysctls, "namespace_sysctls");
  4616		return 0;
  4617	}
  4618	early_initcall(init_fs_namespace_sysctls);
  4619	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org