reproduce: git checkout next-20240416 b4 shazam https://lore.kernel.org/r/25dd4334e3b37eaa628c20265841f251968c2b75.1713335916.git.lorenzo@kernel.org make menuconfig # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS # install Sphinx 2.4.4 make htmldocs