reproduce:
        git remote add andi-shyti git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git
        git fetch andi-shyti i2c/i2c-host
        git checkout andi-shyti/i2c/i2c-host
        b4 shazam https://lore.kernel.org/r/20240619154941.144011-2-kanakshilledar@gmail.com
        make menuconfig
        # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS
        # install Sphinx 2.4.4
        make htmldocs