reproduce:
        # https://github.com/intel/linux-intel-lts/commit/d56f3a63be48fc6e417988e373fe89f9100d1ce8
        git remote add intel-lts https://github.com/intel/linux-intel-lts.git
        git fetch --no-tags intel-lts 6.18/linux
        git checkout d56f3a63be48fc6e417988e373fe89f9100d1ce8
        make menuconfig
        # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS
        # pip install -r Documentation/sphinx/requirements.txt
        make htmldocs