Re: [PATCH v2 01/11] genirq/affinity:: Export irq_create_affinity_masks()

[Christoph Hellwig]

On Tue, Dec 06, 2022 at 04:40:37PM +0800, Yongji Xie wrote:
> With the vDPA framework, some drivers (vduse, vdpa-sim) can create
> software-defined virtio devices and attach them to the virtio bus.
> This kind of virtio device is not a pci device or a platform device.
> So it would be needed to export this function if we want to implement
> the automatic affinity management for the virtio device driver which
> is binded to this device.

Why are these devices even using interrupts?  The whjole vdpa thing
is a mess, I also still need to fix up the horrible abuse of the DMA
API for something that isn't even DMA, and this just seems to spread
that same mistake even further.