Hi Stefan, kernel test robot noticed the following build warnings: [auto build test WARNING on 6a8f57ae2eb07ab39a6f0ccad60c760743051026] url: https://github.com/intel-lab-lkp/linux/commits/Stefan-Berger/drivers-of-kexec-ima-Support-32-bit-platforms/20230418-214600 base: 6a8f57ae2eb07ab39a6f0ccad60c760743051026 patch link: https://lore.kernel.org/r/20230418134409.177485-5-stefanb%40linux.ibm.com patch subject: [PATCH v9 4/4] tpm/kexec: Duplicate TPM measurement log in of-tree for kexec config: x86_64-randconfig-a013-20230417 (https://download.01.org/0day-ci/archive/20230419/202304190215.d0zwo1ni-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) 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/16a833d47b9aca53a1b099dea4066b76b7f14ee1 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Stefan-Berger/drivers-of-kexec-ima-Support-32-bit-platforms/20230418-214600 git checkout 16a833d47b9aca53a1b099dea4066b76b7f14ee1 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/mailbox/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304190215.d0zwo1ni-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/mailbox/mailbox.c:18: In file included from include/linux/mailbox_client.h:10: >> include/linux/of.h:1664:48: warning: declaration of 'struct kimage' will not be visible outside of this function [-Wvisibility] static inline void tpm_add_kexec_buffer(struct kimage *image) { } ^ 1 warning generated. vim +1664 include/linux/of.h 1660 1661 #if defined(CONFIG_KEXEC_FILE) && defined(CONFIG_OF_FLATTREE) 1662 void tpm_add_kexec_buffer(struct kimage *image); 1663 #else > 1664 static inline void tpm_add_kexec_buffer(struct kimage *image) { } 1665 #endif 1666 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests