reproduce:
        # https://github.com/gourryinverse/linux/commit/8fc7484466b6a2fe5c68ced2feb37ab4bd22ed01
        git remote add gourryinverse https://github.com/gourryinverse/linux
        git fetch --no-tags gourryinverse scratch/gourry/managed_nodes/dax_base
        git checkout 8fc7484466b6a2fe5c68ced2feb37ab4bd22ed01
        make menuconfig
        # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS
        # pip install -r Documentation/sphinx/requirements.txt
        make htmldocs