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virtio: fix virtio_config_ops description 

- get_features has returned 64 bits since commit d025477368
  ("virtio: add support for 64 bit features.")
- properly mark all optional callbacks

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
This commit is contained in:
Cornelia Huck 2019-01-03 17:08:03 +01:00 committed by Michael S. Tsirkin
parent 1c7fc5cbc3
commit b89a07c437
1 changed files with 4 additions and 4 deletions
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8
include/linux/virtio_config.h
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@ -22,7 +22,7 @@ struct irq_affinity;
* offset: the offset of the configuration field
* buf: the buffer to read the field value from.
* len: the length of the buffer
* @generation: config generation counter
* @generation: config generation counter (optional)
* vdev: the virtio_device
* Returns the config generation counter
* @get_status: read the status byte
@ -48,17 +48,17 @@ struct irq_affinity;
* @del_vqs: free virtqueues found by find_vqs().
* @get_features: get the array of feature bits for this device.
* vdev: the virtio_device
* Returns the first 32 feature bits (all we currently need).
* Returns the first 64 feature bits (all we currently need).
* @finalize_features: confirm what device features we'll be using.
* vdev: the virtio_device
* This gives the final feature bits for the device: it can change
* the dev->feature bits if it wants.
* Returns 0 on success or error status
* @bus_name: return the bus name associated with the device
* @bus_name: return the bus name associated with the device (optional)
* vdev: the virtio_device
* This returns a pointer to the bus name a la pci_name from which
* the caller can then copy.
* @set_vq_affinity: set the affinity for a virtqueue.
* @set_vq_affinity: set the affinity for a virtqueue (optional).
* @get_vq_affinity: get the affinity for a virtqueue (optional).
*/
typedef void vq_callback_t(struct virtqueue *);