[ammarfaizi2-block:arm64/linux/for-next/perf 11/12] htmldocs: Documentation/admin-guide/perf/hns3-pmu.rst: WARNING: document isn't included in any toctree

[kernel test robot]

tree:   https://github.com/ammarfaizi2/linux-block arm64/linux/for-next/perf
head:   66637ab137b44914356a9dc7a9b3f8ebcf0b0695
commit: 39915b6b5fc209c9262b32ec754b3838550f2a1f [11/12] drivers/perf: hisi: Add description for HNS3 PMU driver
reproduce: make htmldocs

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

All warnings (new ones prefixed by >>):

>> Documentation/admin-guide/perf/hns3-pmu.rst: WARNING: document isn't included in any toctree

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