[mcgrof-next:20211116-sysctl-cleanups-v3 11/20] drivers/macintosh/mac_hid.c:246:24: warning: incompatible integer to pointer conversion assigning to 'struct ctl_table_header *' from 'int'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git 20211116-sysctl-cleanups-v3
head:   06113f1d9a2d0669964adfa2e0128bd50e56b621
commit: 72daf12fc8290df22f4479f912a74c73a6a2fe38 [11/20] macintosh/mac_hid.c: use new sysctl subdir helper register_sysctl_subdir()
config: i386-randconfig-a003-20211116 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 4c2cf3a314d9131b1b288e7c8ab0c75ac1b2be1d)
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=72daf12fc8290df22f4479f912a74c73a6a2fe38
        git remote add mcgrof-next https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git
        git fetch --no-tags mcgrof-next 20211116-sysctl-cleanups-v3
        git checkout 72daf12fc8290df22f4479f912a74c73a6a2fe38
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=i386 

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

All warnings (new ones prefixed by >>):

   drivers/macintosh/mac_hid.c:246:26: error: implicit declaration of function 'register_sysctl_subdir' [-Werror,-Wimplicit-function-declaration]
           mac_hid_sysctl_header = register_sysctl_subdir("dev", "mac_hid",
                                   ^
>> drivers/macintosh/mac_hid.c:246:24: warning: incompatible integer to pointer conversion assigning to 'struct ctl_table_header *' from 'int' [-Wint-conversion]
           mac_hid_sysctl_header = register_sysctl_subdir("dev", "mac_hid",
                                 ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   1 warning and 1 error generated.


vim +246 drivers/macintosh/mac_hid.c

   243	
   244	static int __init mac_hid_init(void)
   245	{
 > 246		mac_hid_sysctl_header = register_sysctl_subdir("dev", "mac_hid",
   247							       mac_hid_files);
   248		if (!mac_hid_sysctl_header)
   249			return -ENOMEM;
   250	
   251		return 0;
   252	}
   253	module_init(mac_hid_init);
   254	

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

Attachment: .config.gz
Description: application/gzip