Hi Roberto,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on bpf-next/master]
[also build test ERROR on bpf/master linus/master next-20220328]
[cannot apply to v5.17]
[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/intel-lab-lkp/linux/commits/Roberto-Sassu/bpf-Secure-and-authenticated-preloading-of-eBPF-programs/20220329-015829
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: arm64-randconfig-r026-20220328 (https://download.01.org/0day-ci/archive/20220329/202203291125.8NpccWn1-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0f6d9501cf49ce02937099350d08f20c4af86f3d)
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 arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/2e0e81b0296abc384efb2a73520ce03c2a5344ea
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Roberto-Sassu/bpf-Secure-and-authenticated-preloading-of-eBPF-programs/20220329-015829
        git checkout 2e0e81b0296abc384efb2a73520ce03c2a5344ea
        # 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=arm64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

quoted

kernel/bpf/inode.c:25:37: error: use of undeclared identifier 'CONFIG_BPF_PRELOAD_LIST'

   static char *bpf_preload_list_str = CONFIG_BPF_PRELOAD_LIST;
                                       ^
   1 error generated.


vim +/CONFIG_BPF_PRELOAD_LIST +25 kernel/bpf/inode.c

    24	
  > 25	static char *bpf_preload_list_str = CONFIG_BPF_PRELOAD_LIST;
    26	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp