CAPI: Call a controller 'controller', not 'card'

[pandora-kernel.git] / include / linux / virtio.h

diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 057a2e0..f508c65 100644 (file)
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -51,6 +51,9 @@ struct virtqueue {
  *     This re-enables callbacks; it returns "false" if there are pending
  *     buffers in the queue, to detect a possible race between the driver
  *     checking for more work, and enabling callbacks.
+ * @detach_unused_buf: detach first unused buffer
+ *     vq: the struct virtqueue we're talking about.
+ *     Returns NULL or the "data" token handed to add_buf
  *
  * Locking rules are straightforward: the driver is responsible for
  * locking.  No two operations may be invoked simultaneously, with the exception
@@ -71,6 +74,7 @@ struct virtqueue_ops {
 
        void (*disable_cb)(struct virtqueue *vq);
        bool (*enable_cb)(struct virtqueue *vq);
+       void *(*detach_unused_buf)(struct virtqueue *vq);
 };
 
 /**