virtio: support reserved vqs

[~andy/linux] / include / linux / virtio_config.h

diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 2c4a9895379d7b046f039c5d1d9400af622318db..e2850a7ea2762ef01351c05b38bc31c6db721ab4 100644 (file)
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -84,7 +84,9 @@
  *     nvqs: the number of virtqueues to find
  *     vqs: on success, includes new virtqueues
  *     callbacks: array of callbacks, for each virtqueue
+ *             include a NULL entry for vqs that do not need a callback
  *     names: array of virtqueue names (mainly for debugging)
+ *             include a NULL entry for vqs unused by driver
  *     Returns 0 on success or error status
  * @del_vqs: free virtqueues found by find_vqs().
  * @get_features: get the array of feature bits for this device.