reproduce:
        git remote add android-common https://android.googlesource.com/kernel/common
        git fetch --no-tags android-common android14-5.15
        git checkout 7a7986f840b09a4a80a6c042bb9316b71ef37b61
        make menuconfig
        # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS
        # pip install -r Documentation/sphinx/requirements.txt
        make htmldocs