Hi Ian, kernel test robot noticed the following build warnings: [auto build test WARNING on acme/perf/core] [also build test WARNING on tip/master tip/auto-latest linus/master v6.4-rc5 next-20230606] [cannot apply to tip/perf/core] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Ian-Rogers/perf-build-Add-ability-to-build-with-a-generated-vmlinux-h/20230606-043106 base: https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git perf/core patch link: https://lore.kernel.org/r/20230605202712.1690876-2-irogers%40google.com patch subject: [PATCH v2 1/4] perf build: Add ability to build with a generated vmlinux.h config: i386-randconfig-i052-20230605 (https://download.01.org/0day-ci/archive/20230606/202306062005.DdBIyoSS-lkp@xxxxxxxxx/config) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce (this is a W=1 build): mkdir -p ~/bin wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git remote add acme https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git git fetch acme perf/core git checkout acme/perf/core b4 shazam https://lore.kernel.org/r/20230605202712.1690876-2-irogers@xxxxxxxxxx # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=i386 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202306062005.DdBIyoSS-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> tools/perf/util/bpf_skel/vmlinux/vmlinux.h: warning: ignored by one of the .gitignore files tools/testing/selftests/arm64/tags/.gitignore: warning: ignored by one of the .gitignore files tools/testing/selftests/arm64/tags/Makefile: warning: ignored by one of the .gitignore files tools/testing/selftests/arm64/tags/run_tags_test.sh: warning: ignored by one of the .gitignore files tools/testing/selftests/arm64/tags/tags_test.c: warning: ignored by one of the .gitignore files tools/testing/selftests/kvm/.gitignore: warning: ignored by one of the .gitignore files tools/testing/selftests/kvm/Makefile: warning: ignored by one of the .gitignore files tools/testing/selftests/kvm/config: warning: ignored by one of the .gitignore files tools/testing/selftests/kvm/settings: warning: ignored by one of the .gitignore files -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki