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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.c37
1 files changed, 3 insertions, 34 deletions
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 5217baf5528c..c70207478e57 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -296,37 +296,6 @@ add_head:
}
/**
- * virtqueue_add_buf - expose buffer to other end
- * @vq: the struct virtqueue we're talking about.
- * @sg: the description of the buffer(s).
- * @out_num: the number of sg readable by other side
- * @in_num: the number of sg which are writable (after readable ones)
- * @data: the token identifying the buffer.
- * @gfp: how to do memory allocations (if necessary).
- *
- * Caller must ensure we don't call this with other virtqueue operations
- * at the same time (except where noted).
- *
- * Returns zero or a negative error (ie. ENOSPC, ENOMEM).
- */
-int virtqueue_add_buf(struct virtqueue *_vq,
- struct scatterlist sg[],
- unsigned int out,
- unsigned int in,
- void *data,
- gfp_t gfp)
-{
- struct scatterlist *sgs[2];
-
- sgs[0] = sg;
- sgs[1] = sg + out;
-
- return virtqueue_add(_vq, sgs, sg_next_arr,
- out, in, out ? 1 : 0, in ? 1 : 0, data, gfp);
-}
-EXPORT_SYMBOL_GPL(virtqueue_add_buf);
-
-/**
* virtqueue_add_sgs - expose buffers to other end
* @vq: the struct virtqueue we're talking about.
* @sgs: array of terminated scatterlists.
@@ -473,7 +442,7 @@ EXPORT_SYMBOL_GPL(virtqueue_notify);
* virtqueue_kick - update after add_buf
* @vq: the struct virtqueue
*
- * After one or more virtqueue_add_buf calls, invoke this to kick
+ * After one or more virtqueue_add_* calls, invoke this to kick
* the other side.
*
* Caller must ensure we don't call this with other virtqueue
@@ -530,7 +499,7 @@ static inline bool more_used(const struct vring_virtqueue *vq)
* operations at the same time (except where noted).
*
* Returns NULL if there are no used buffers, or the "data" token
- * handed to virtqueue_add_buf().
+ * handed to virtqueue_add_*().
*/
void *virtqueue_get_buf(struct virtqueue *_vq, unsigned int *len)
{
@@ -685,7 +654,7 @@ EXPORT_SYMBOL_GPL(virtqueue_enable_cb_delayed);
* virtqueue_detach_unused_buf - detach first unused buffer
* @vq: the struct virtqueue we're talking about.
*
- * Returns NULL or the "data" token handed to virtqueue_add_buf().
+ * Returns NULL or the "data" token handed to virtqueue_add_*().
* This is not valid on an active queue; it is useful only for device
* shutdown.
*/