[Intel-gfx] ✗ Fi.CI.BAT: failure for series starting with [1/5] drm/i915: Remove CNL from WA 827 (rev4)

[Patchwork]

== Series Details ==

Series: series starting with [1/5] drm/i915: Remove CNL from WA 827 (rev4)
URL   : https://patchwork.freedesktop.org/series/51713/
State : failure

== Summary ==

Applying: drm/i915: Remove CNL from WA 827
Applying: drm/i915/cnl: Remove useless CNL A-stepping workarounds.
Applying: drm/i915: Define WA 0870 and kill dead code.
error: sha1 information is lacking or useless (drivers/gpu/drm/i915/intel_display.c).
error: could not build fake ancestor
Patch failed at 0003 drm/i915: Define WA 0870 and kill dead code.
Use 'git am --show-current-patch' to see the failed patch
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".