Hi James, I love your patch! Yet something to improve: [auto build test ERROR on integrity/next-integrity] [also build test ERROR on linus/master v5.9-rc5 next-20200918] [cannot apply to security/next-testing dhowells-fs/fscache-next] [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/James-Bottomley/TPM-2-0-trusted-... base: https://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git next-integrity config: x86_64-randconfig-a003-20200921 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project f4e554180962aa6bc93678898b6933ea712bde50) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): make[4]: *** [scripts/Makefile.build:283: security/keys/trusted-keys/trusted_tpm2.o] Error 1 make[4]: Target '__build' not remade because of errors. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org