reproduce:
        git checkout linus/master
        b4 shazam https://lore.kernel.org/r/20260903072902.3870009-11-harendra.gautam@oss.qualcomm.com
        make menuconfig
        # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS
        # pip install -r Documentation/sphinx/requirements.txt
        make htmldocs