Hi Tong, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.17-rc1 next-20220124] [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/Tong-Zhang/binfmt_misc-fix-crash-when-load-unload-module/20220124-083500 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git dd81e1c7d5fb126e5fbc5c9e334d7b3ec29a16a0 config: riscv-randconfig-r001-20220123 (https://download.01.org/0day-ci/archive/20220124/202201241937.i9KSsyAj-lkp@xxxxxxxxx/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 7b3d30728816403d1fd73cc5082e9fb761262bce) 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 # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/0day-ci/linux/commit/d649008f3214eb4d94760873831ef5e53c292976 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Tong-Zhang/binfmt_misc-fix-crash-when-load-unload-module/20220124-083500 git checkout d649008f3214eb4d94760873831ef5e53c292976 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> fs/binfmt_misc.c:828:21: error: incompatible pointer types assigning to 'struct ctl_table_header *' from 'struct sysctl_header *' [-Werror,-Wincompatible-pointer-types] binfmt_misc_header = register_sysctl_mount_point("fs/binfmt_misc"); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 error generated. vim +828 fs/binfmt_misc.c 821 822 static int __init init_misc_binfmt(void) 823 { 824 int err = register_filesystem(&bm_fs_type); 825 if (!err) 826 insert_binfmt(&misc_format); 827 > 828 binfmt_misc_header = register_sysctl_mount_point("fs/binfmt_misc"); 829 if (!binfmt_misc_header) { 830 pr_warn("Failed to create fs/binfmt_misc sysctl mount point"); 831 return -ENOMEM; 832 } 833 return 0; 834 } 835 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
