[Intel-gfx] ✗ Fi.CI.BUILD: failure for Restricted DMA

[Patchwork]

== Series Details ==

Series: Restricted DMA
URL   : https://patchwork.freedesktop.org/series/89341/
State : failure

== Summary ==

Applying: swiotlb: Fix the type of index
error: sha1 information is lacking or useless (kernel/dma/swiotlb.c).
error: could not build fake ancestor
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 swiotlb: Fix the type of index
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".