Hi Akira, kernel test robot noticed the following build warnings: [auto build test WARNING on lwn/docs-next] [also build test WARNING on linus/master v6.7-rc5 next-20231211] [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/Akira-Yokosawa/docs-sphinx-requirement-txt-Reflect-recommended-Sphinx-version/20231210-074628 base: git://git.lwn.net/linux.git docs-next patch link: https://lore.kernel.org/r/50830030-dca7-4c43-bcc8-449c7cfa9fbb%40gmail.com patch subject: [PATCH] docs: sphinx/requirement.txt: Reflect recommended Sphinx version reproduce: (https://download.01.org/0day-ci/archive/20231212/202312120740.HxQGwUoL-lkp@xxxxxxxxx/reproduce) 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/202312120740.HxQGwUoL-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> Documentation/gpu/drm-kms:360: ./drivers/gpu/drm/drm_fourcc.c:344: WARNING: Duplicate C declaration, also defined at gpu/drm-kms:39. >> Documentation/gpu/drm-kms:461: ./drivers/gpu/drm/drm_modeset_lock.c:392: WARNING: Duplicate C declaration, also defined at gpu/drm-kms:49. >> Documentation/gpu/drm-uapi:434: ./drivers/gpu/drm/drm_ioctl.c:928: WARNING: Duplicate C declaration, also defined at gpu/drm-uapi:70. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki