tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git 20211118-sysctl-cleanups-set-04-v4
head:   be45d1710bab2a205a293605be8696ecf8571084
commit: 764cf5b53fe8fefda5bbf35b59d6d179753ea5bc [18/41] firmware_loader: move firmware sysctl to its own files
config: mips-randconfig-r032-20211118 (attached as .config)
compiler: mipsel-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=764cf5b53fe8fefda5bbf35b59d6d179753ea5bc
        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-v4
        git checkout 764cf5b53fe8fefda5bbf35b59d6d179753ea5bc
        # 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=mips SHELL=/bin/bash drivers/base/firmware_loader/

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 >>):

   drivers/base/firmware_loader/fallback_table.c: In function 'unregister_firmware_config_sysctl':
>> drivers/base/firmware_loader/fallback_table.c:62:33: error: 'hdr' undeclared (first use in this function); did you mean 'idr'?
      62 |         unregister_sysctl_table(hdr);
         |                                 ^~~
         |                                 idr
   drivers/base/firmware_loader/fallback_table.c:62:33: note: each undeclared identifier is reported only once for each function it appears in


vim +62 drivers/base/firmware_loader/fallback_table.c

    59	
    60	void unregister_firmware_config_sysctl(void)
    61	{
  > 62		unregister_sysctl_table(hdr);

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