tree:   https://github.com/ammarfaizi2/linux-block akpm/mm/mm-unstable
head:   a2765ca8c916591ebc9af48b4e545922c0bd3c3b
commit: 4fbeee6b758e6cb96047d94a514e082eafdb0ebb [215/223] Docs/admin-guide/mm/numaperf: increase depth of subsections
reproduce:
        # https://github.com/ammarfaizi2/linux-block/commit/4fbeee6b758e6cb96047d94a514e082eafdb0ebb
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block akpm/mm/mm-unstable
        git checkout 4fbeee6b758e6cb96047d94a514e082eafdb0ebb
        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/admin-guide/mm/numaperf.rst:68: WARNING: duplicate label admin-guide/mm/numaperf:numa performance, other instance in Documentation/admin-guide/mm/numaperf.rst

vim +68 Documentation/admin-guide/mm/numaperf.rst

dc9e7860df9162 Jonathan Cameron 2020-09-30  66  
13bac55ef7aef8 Keith Busch      2019-03-11  67  NUMA Performance
13bac55ef7aef8 Keith Busch      2019-03-11 @68  ================
13bac55ef7aef8 Keith Busch      2019-03-11  69  

:::::: The code at line 68 was first introduced by commit
:::::: 13bac55ef7aef8ecb67ff3005d24b05a464d28ea doc/mm: New documentation for memory performance

:::::: TO: Keith Busch <keith.busch@intel.com>
:::::: CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

-- 
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https://github.com/intel/lkp-tests