[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with drm/vblank: Document and fix vblank count barrier semantics (rev2)

[Patchwork]

== Series Details ==

Series: series starting with drm/vblank: Document and fix vblank count barrier semantics (rev2)
URL   : https://patchwork.freedesktop.org/series/63949/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
371224e762e2 drm/vblank: Document and fix vblank count barrier semantics
-:28: ERROR:GIT_COMMIT_ID: Please use git commit description style 'commit <12+ chars of sha1> ("<title line>")' - ie: 'commit 570e86963a51 ("drm: Widen vblank count to 64-bits [v3]")'
#28: 
References: 570e86963a51 ("drm: Widen vblank count to 64-bits [v3]")

-:161: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter at ffwll.ch>'

total: 1 errors, 1 warnings, 0 checks, 113 lines checked
38190d67a1e7 drm/vkms: Use wait_for_flip_done
-:27: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter at ffwll.ch>'

total: 0 errors, 1 warnings, 0 checks, 8 lines checked
e7001c1e18ea drm/vkms: Reduce critical section in vblank_simulate
-:92: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter at ffwll.ch>'

total: 0 errors, 1 warnings, 0 checks, 36 lines checked