tree:   https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android-4.14-stable
head:   2f6eb21008b61d4e637ac54d9cac9decad0e8323
commit: ec0b569b5cc89391d9d6c90d2f76dc0a4db03e57 [2223/9999] BACKPORT: FROMLIST: block: blk-crypto for Inline Encryption
reproduce:
        # https://github.com/ammarfaizi2/linux-block/commit/ec0b569b5cc89391d9d6c90d2f76dc0a4db03e57
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android-4.14-stable
        git checkout ec0b569b5cc89391d9d6c90d2f76dc0a4db03e57
        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/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/bfq-iosched'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/biodoc'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/biovecs'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/capability'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/cmdline-partition'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/data-integrity'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/deadline-iosched'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/ioprio'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/kyber-iosched'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/null_blk'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/pr'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/queue-sysfs'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/request'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/stat'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/switching-sched'
>> Documentation/block/index.rst:7: WARNING: toctree contains reference to nonexisting document 'block/writeback_cache_control'
>> Documentation/block/index.rst:: WARNING: document isn't included in any toctree

vim +7 Documentation/block/index.rst

     6	
   > 7	.. toctree::

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests