linux-next: build warning after merge of the cxl tree

[Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>]

Hi all,

After merging the cxl tree, today's linux-next build (htmldocs)
produced this warning:

Documentation/driver-api/cxl/memory-devices.rst:32: WARNING: Title underline too short.

CXL Core
-------

Introduced by commit

  5f653f7590ab ("cxl/core: Rename bus.c to core.c")

-- 
Cheers,
Stephen Rothwell

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