On Fri, Mar 13, 2026 at 5:58 AM John S <[email protected]> wrote: > > Add a new "Buffer mapping" section to the virtio driver writing guide > documenting the virtio map API (struct virtio_map_ops). This API was > introduced in commit bee8c7c24b73 ("virtio: introduce map ops in virtio > core") to allow transports and devices that do not perform DMA (such > as VDUSE) to provide their own buffer mapping logic instead of abusing > the DMA API. > > The new section explains when and why custom map ops are used, documents > the virtio_map_ops structure and the union virtio_map token, and > references the driver-facing mapping helpers with their kernel-doc. > > Signed-off-by: Kit Dallege <[email protected]> > ---
Acked-by: Jason Wang <[email protected]> Thanks
