Hi Christian ! While cleaning up & consolidating resource management code accross archs I stumbled upon this call to pci_assign_unassigned_bus_resources in amdgpu:amdgpu_device_resize_fb_bar() Why do you need this ? My understanding is that pci_resize_resource() will already be calling pci_reassign_bridge_resources() on the parent bridge which should have the same effect. Or am I missing something ? I'd like to remove that call if possible... Cheers, Ben.