> From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> > Sent: Friday, March 24, 2023 8:03 PM > > iommu_unregister_device_fault_handler() and iopf_queue_remove_device() > are called after device has stopped issuing new page falut requests and > all outstanding page requests have been drained. They should never fail. > Trigger a warning if it happens unfortunately. > > Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>