Hi Stefan, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on char-misc/char-misc-testing] [also build test WARNING on linus/master v5.19-rc2 next-20220616] [cannot apply to robh/for-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/intel-lab-lkp/linux/commits/Stefan-Berger/tpm-Preserve-TPM-measurement-log-across-kexec/20220616-234240 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git 0a35780c755ccec097d15c6b4ff8b246a89f1689 config: x86_64-randconfig-a016 (https://download.01.org/0day-ci/archive/20220617/202206170406.VbxuBICz-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project f0e608de27b3d568000046eebf3712ab542979d6) 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://github.com/intel-lab-lkp/linux/commit/c28e0f7321d0b7245454e811a3dd0f2134d9dd74 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Stefan-Berger/tpm-Preserve-TPM-measurement-log-across-kexec/20220616-234240 git checkout c28e0f7321d0b7245454e811a3dd0f2134d9dd74 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/of/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/of/kexec.c:305: warning: expecting prototype for tpm_free_kexec_buffer(). Prototype was for tpm_of_remove_kexec_buffer() instead vim +305 drivers/of/kexec.c 300 301 /** 302 * tpm_free_kexec_buffer - free memory used by the IMA buffer 303 */ 304 static int tpm_of_remove_kexec_buffer(void) > 305 { 306 struct property *prop; 307 308 prop = of_find_property(of_chosen, "linux,tpm-kexec-buffer", NULL); 309 if (!prop) 310 return -ENOENT; 311 312 return of_remove_property(of_chosen, prop); 313 } 314 -- 0-DAY CI Kernel Test Service https://01.org/lkp