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Blocking in work queues on a hardware action that may never occur — especially when it depends on a software fixup also scheduled on the a work queue — is a recipe for deadlock. This situation arises with the preempt rebind worker and VF post-migration recovery. To prevent potential deadlocks, avoid indefinite blocking in the preempt rebind worker for VFs that support migration. v4: - Use dma_fence_wait_timeout (CI) Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Tomasz Lis <tomasz.lis@intel.com> Link: https://lore.kernel.org/r/20251008214532.3442967-19-matthew.brost@intel.com