reproduce:
        git remote add amd-pstate https://git.kernel.org/pub/scm/linux/kernel/git/superm1/linux.git
        git fetch amd-pstate linux-next
        git checkout amd-pstate/linux-next
        b4 shazam https://lore.kernel.org/r/20250225220037.16073-2-derekjohn.clark@gmail.com
        make menuconfig
        # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS
        # install Sphinx 2.4.4
        make htmldocs