Hi Kees, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 97ee9d1c16963375eefdf964c429897d27e28956 commit: 281d0c962752fb40866dd8d4cade68656f34bd1f fortify: Add Clang support date: 10 months ago config: arm64-randconfig-r015-20221202 compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 6e4cea55f0d1104408b26ac574566a0e4de48036) 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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=281d0c962752fb40866dd8d4cade68656f34bd1f git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 281d0c962752fb40866dd8d4cade68656f34bd1f # 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=arm64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> ld.lld: warning: call to __read_overflow2_field marked "dontcall-warn": detected read beyond size of field (2nd parameter); maybe use struct_group()? >> ld.lld: warning: call to __read_overflow2_field marked "dontcall-warn": detected read beyond size of field (2nd parameter); maybe use struct_group()? -- 0-DAY CI Kernel Test Service https://01.org/lkp