One letter named variables doesn't really help to read the code,
and they simply duplicate structure fields.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Raphael Norwitz <raphael.s.norwitz@gmail.com>
---
 hw/virtio/vhost.c | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
index 7390385876..cc07450dcb 100644
--- a/hw/virtio/vhost.c
+++ b/hw/virtio/vhost.c
@@ -1276,7 +1276,6 @@ int vhost_virtqueue_start(struct vhost_dev *dev,
     BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(vdev)));
     VirtioBusState *vbus = VIRTIO_BUS(qbus);
     VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(vbus);
-    hwaddr l, a;
     int r;
     int vhost_vq_index = dev->vhost_ops->vhost_get_vq_index(dev, idx);
     struct vhost_vring_file file = {
@@ -1287,28 +1286,27 @@ int vhost_virtqueue_start(struct vhost_dev *dev,
     };
     struct VirtQueue *vvq = virtio_get_queue(vdev, idx);
 
-    a = virtio_queue_get_desc_addr(vdev, idx);
-    if (a == 0) {
+    vq->desc_phys = virtio_queue_get_desc_addr(vdev, idx);
+    if (vq->desc_phys == 0) {
         /* Queue might not be ready for start */
         return 0;
     }
-    vq->desc_size = l = virtio_queue_get_desc_size(vdev, idx);
-    vq->desc_phys = a;
-    vq->desc = vhost_memory_map(dev, a, l, false);
+    vq->desc_size = virtio_queue_get_desc_size(vdev, idx);
+    vq->desc = vhost_memory_map(dev, vq->desc_phys, vq->desc_size, false);
     if (!vq->desc) {
         r = -ENOMEM;
         goto fail;
     }
-    vq->avail_size = l = virtio_queue_get_avail_size(vdev, idx);
-    vq->avail_phys = a = virtio_queue_get_avail_addr(vdev, idx);
-    vq->avail = vhost_memory_map(dev, a, l, false);
+    vq->avail_size = virtio_queue_get_avail_size(vdev, idx);
+    vq->avail_phys = virtio_queue_get_avail_addr(vdev, idx);
+    vq->avail = vhost_memory_map(dev, vq->avail_phys, vq->avail_size, false);
     if (!vq->avail) {
         r = -ENOMEM;
         goto fail;
     }
-    vq->used_size = l = virtio_queue_get_used_size(vdev, idx);
-    vq->used_phys = a = virtio_queue_get_used_addr(vdev, idx);
-    vq->used = vhost_memory_map(dev, a, l, true);
+    vq->used_size = virtio_queue_get_used_size(vdev, idx);
+    vq->used_phys = virtio_queue_get_used_addr(vdev, idx);
+    vq->used = vhost_memory_map(dev, vq->used_phys, vq->used_size, true);
     if (!vq->used) {
         r = -ENOMEM;
         goto fail;
-- 
2.48.1