tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   147307c69ba4441ee90c1f8ce8edf5df4ea60f67
commit: 1b838666080d8adc76f9b3cac02cc9ab38ca4d00 [8594/8929] mm: add zblock - new allocator for use via zpool API
reproduce:
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=1b838666080d8adc76f9b3cac02cc9ab38ca4d00
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 1b838666080d8adc76f9b3cac02cc9ab38ca4d00
        make menuconfig
        # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS
        make htmldocs

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> Documentation/mm/zblock.rst: WARNING: document isn't included in any toctree

-- 
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https://01.org/lkp