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

Hi all,

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

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:405: warning: Function parameter or member 'dmcub_trace_event_en' not described in 'amdgpu_display_manager'

Introduced by commit

  4057828a1283 ("drm/amd/display: Add debugfs to control DMUB trace buffer events")

-- 
Cheers,
Stephen Rothwell