[Intel-gfx] ✗ Fi.CI.BUILD: failure for Convert the intel iommu driver to the dma-iommu api (rev3)

[Patchwork]

== Series Details ==

Series: Convert the intel iommu driver to the dma-iommu api (rev3)
URL   : https://patchwork.freedesktop.org/series/71260/
State : failure

== Summary ==

Applying: iommu: Handle freelists when using deferred flushing in iommu drivers
error: sha1 information is lacking or useless (drivers/iommu/dma-iommu.c).
error: could not build fake ancestor
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 iommu: Handle freelists when using deferred flushing in iommu drivers
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".