[PULL 29/41] vhost_net: use the function qemu_get_peer

["Michael S. Tsirkin" <mst@redhat.com>]

From: Cindy Lu <lulu@redhat.com>

user the qemu_get_peer to replace the old process

Signed-off-by: Cindy Lu <lulu@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20200701145538.22333-3-lulu@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
---
 hw/net/vhost_net.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c
index 6b82803fa7..4096d64aaf 100644
--- a/hw/net/vhost_net.c
+++ b/hw/net/vhost_net.c
@@ -306,7 +306,9 @@ int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
     BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(dev)));
     VirtioBusState *vbus = VIRTIO_BUS(qbus);
     VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(vbus);
+    struct vhost_net *net;
     int r, e, i;
+    NetClientState *peer;
 
     if (!k->set_guest_notifiers) {
         error_report("binding does not support guest notifiers");
@@ -314,9 +316,9 @@ int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
     }
 
     for (i = 0; i < total_queues; i++) {
-        struct vhost_net *net;
 
-        net = get_vhost_net(ncs[i].peer);
+        peer = qemu_get_peer(ncs, i);
+        net = get_vhost_net(peer);
         vhost_net_set_vq_index(net, i * 2);
 
         /* Suppress the masking guest notifiers on vhost user
@@ -335,15 +337,16 @@ int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
     }
 
     for (i = 0; i < total_queues; i++) {
-        r = vhost_net_start_one(get_vhost_net(ncs[i].peer), dev);
+        peer = qemu_get_peer(ncs, i);
+        r = vhost_net_start_one(get_vhost_net(peer), dev);
 
         if (r < 0) {
             goto err_start;
         }
 
-        if (ncs[i].peer->vring_enable) {
+        if (peer->vring_enable) {
             /* restore vring enable state */
-            r = vhost_set_vring_enable(ncs[i].peer, ncs[i].peer->vring_enable);
+            r = vhost_set_vring_enable(peer, peer->vring_enable);
 
             if (r < 0) {
                 goto err_start;
@@ -355,7 +358,8 @@ int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
 
 err_start:
     while (--i >= 0) {
-        vhost_net_stop_one(get_vhost_net(ncs[i].peer), dev);
+        peer = qemu_get_peer(ncs , i);
+        vhost_net_stop_one(get_vhost_net(peer), dev);
     }
     e = k->set_guest_notifiers(qbus->parent, total_queues * 2, false);
     if (e < 0) {
-- 
MST