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path: root/drivers/virtio/virtio_ring.c
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Diffstat (limited to 'drivers/virtio/virtio_ring.c')
-rw-r--r--drivers/virtio/virtio_ring.c23
1 files changed, 10 insertions, 13 deletions
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index e456cc16ea2a..d0df887c3ada 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -957,6 +957,15 @@ static void virtqueue_vring_init_split(struct vring_virtqueue_split *vring_split
}
}
+static void virtqueue_vring_attach_split(struct vring_virtqueue *vq,
+ struct vring_virtqueue_split *vring_split)
+{
+ vq->split = *vring_split;
+
+ /* Put everything in free lists. */
+ vq->free_head = 0;
+}
+
static int vring_alloc_state_extra_split(struct vring_virtqueue_split *vring_split)
{
struct vring_desc_state_split *state;
@@ -1067,8 +1076,6 @@ static struct virtqueue *vring_create_virtqueue_split(
return NULL;
}
- to_vvq(vq)->split.queue_dma_addr = vring_split.queue_dma_addr;
- to_vvq(vq)->split.queue_size_in_bytes = vring_split.queue_size_in_bytes;
to_vvq(vq)->we_own_ring = true;
return vq;
@@ -2317,26 +2324,16 @@ static struct virtqueue *__vring_new_virtqueue(unsigned int index,
if (virtio_has_feature(vdev, VIRTIO_F_ORDER_PLATFORM))
vq->weak_barriers = false;
- vq->split.queue_dma_addr = 0;
- vq->split.queue_size_in_bytes = 0;
-
- vq->split.vring = vring_split->vring;
-
err = vring_alloc_state_extra_split(vring_split);
if (err) {
kfree(vq);
return NULL;
}
- /* Put everything in free lists. */
- vq->free_head = 0;
-
- vq->split.desc_state = vring_split->desc_state;
- vq->split.desc_extra = vring_split->desc_extra;
-
virtqueue_vring_init_split(vring_split, vq);
virtqueue_init(vq, vring_split->vring.num);
+ virtqueue_vring_attach_split(vq, vring_split);
spin_lock(&vdev->vqs_list_lock);
list_add_tail(&vq->vq.list, &vdev->vqs);