Hi Kent, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.4-rc5 next-20230609] [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/Kent-Gibson/doc-add-configuration-to-generate-doxygen-documentation-on-readthedocs/20230610-100330 base: linus/master patch link: https://lore.kernel.org/r/20230610020148.8973-1-warthog618%40gmail.com patch subject: [libgpiod][PATCH] doc: add configuration to generate doxygen documentation on readthedocs. config: powerpc-randconfig-r035-20230610 (https://download.01.org/0day-ci/archive/20230610/202306101327.8CQ451FM-lkp@xxxxxxxxx/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) 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 # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu git checkout linus/master b4 shazam https://lore.kernel.org/r/20230610020148.8973-1-warthog618@xxxxxxxxx # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=powerpc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202306101327.8CQ451FM-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> .readthedocs.yaml: 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