[RFC PATCH 10/17] rpmsg: virtio: Remove unused used length

[Xie Yongji]

The used length is not used in some cases. Let's drop it
and pass NULL to virtqueue_get_buf() instead.

Signed-off-by: Xie Yongji <xieyongji@xxxxxxxxxxxxx>
---
 drivers/rpmsg/virtio_rpmsg_bus.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index e87d4cf926eb..10df8bc0c3e1 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -437,7 +437,6 @@ static struct rpmsg_device *__rpmsg_create_channel(struct virtproc_info *vrp,
 /* super simple buffer "allocator" that is just enough for now */
 static void *get_a_tx_buf(struct virtproc_info *vrp)
 {
-	unsigned int len;
 	void *ret;
 
 	/* support multiple concurrent senders */
@@ -451,7 +450,7 @@ static void *get_a_tx_buf(struct virtproc_info *vrp)
 		ret = vrp->sbufs + vrp->buf_size * vrp->last_sbuf++;
 	/* or recycle a used one */
 	else
-		ret = virtqueue_get_buf(vrp->svq, &len);
+		ret = virtqueue_get_buf(vrp->svq, NULL);
 
 	mutex_unlock(&vrp->tx_lock);
 
-- 
2.11.0