[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [1/3] drm/vblank: Document and fix vblank count barrier semantics

[Patchwork]

== Series Details ==

Series: series starting with [1/3] drm/vblank: Document and fix vblank count barrier semantics
URL   : https://patchwork.freedesktop.org/series/63949/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
f2d502a922df drm/vblank: Document and fix vblank count barrier semantics
-:117: 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, 85 lines checked
5a7e838c5df6 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
3a795bdbb921 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