[Intel-gfx] ✗ Fi.CI.BAT: failure for series starting with [1/5] drm/i915/gtt: Add read only pages to gen8_pte_encode (rev2)

[Patchwork]

== Series Details ==

Series: series starting with [1/5] drm/i915/gtt: Add read only pages to gen8_pte_encode (rev2)
URL   : https://patchwork.freedesktop.org/series/44750/
State : failure

== Summary ==

Applying: drm/i915/gtt: Add read only pages to gen8_pte_encode
error: sha1 information is lacking or useless (drivers/gpu/drm/i915/i915_gem_gtt.c).
error: could not build fake ancestor
Patch failed at 0001 drm/i915/gtt: Add read only pages to gen8_pte_encode
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".