[PATCH V2 3/6] scsi: add flag of .use_managed_irq to 'struct Scsi_Host'

[Christoph Hellwig]

On Mon, Jul 05, 2021 at 05:55:49PM +0800, Ming Lei wrote:
> The thing is that blk_mq_pci_map_queues() is allowed to be called for
> non-managed irqs. Also some managed irq consumers don't use blk_mq_pci_map_queues().
> 
> So this way just provides hint about managed irq uses, but we really
> need to get this flag set if driver uses managed irq.

blk_mq_pci_map_queues is absolutely intended to only be used by
managed irqs.  I wonder if we can enforce that somehow?