reproduce:
        git remote add kvm https://git.kernel.org/pub/scm/virt/kvm/kvm.git
        git fetch kvm queue
        git checkout kvm/queue
        b4 shazam https://lore.kernel.org/r/20260119164228.2108498-2-thomas.courrege@thorondor.fr
        make menuconfig
        # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS
        # pip install -r Documentation/sphinx/requirements.txt
        make htmldocs