[Intel-gfx] ✗ Fi.CI.BUILD: failure for cover-letter: Add vfio_device cdev for iommufd support (rev2)

[Patchwork]

== Series Details ==

Series: cover-letter: Add vfio_device cdev for iommufd support (rev2)
URL   : https://patchwork.freedesktop.org/series/114850/
State : failure

== Summary ==

Error: patch https://patchwork.freedesktop.org/api/1.0/series/114850/revisions/2/mbox/ not applied
Applying: vfio: Allocate per device file structure
Applying: vfio: Refine vfio file kAPIs for KVM
Applying: vfio: Accept vfio device file in the KVM facing kAPI
Applying: kvm/vfio: Rename kvm_vfio_group to prepare for accepting vfio device fd
Applying: kvm/vfio: Accept vfio device file from userspace
error: sha1 information is lacking or useless (Documentation/virt/kvm/devices/vfio.rst).
error: could not build fake ancestor
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0005 kvm/vfio: Accept vfio device file from userspace
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".
Build failed, no error log produced