On Tue, Mar 27, 2018 at 09:39:08AM -0600, Keith Busch wrote: > - return blk_mq_pci_map_queues(set, to_pci_dev(dev->dev), 0); > + return blk_mq_pci_map_queues(set, to_pci_dev(dev->dev), > + dev->num_vecs > 1); Can you turn this into: - return blk_mq_pci_map_queues(set, to_pci_dev(dev->dev), 0); dev->num_vecs > 1 ? 1 /* admin queue */ : 0); no functional change, but much easier to understand. Except for that the whole series looks good: Reviewed-by: Christoph Hellwig <hch@xxxxxx>