net: introduce qemu_net_client_setup()

This patch separates the setup of NetClientState from its allocation, this will
allow allocating an arrays of NetClientState and does the initialization one by
one which is what multiqueue needs.
Signed-off-by: NJason Wang <jasowang@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

net/net.c

@@ -182,17 +182,12 @@ static char *assign_name(NetClientState *nc1, const char *model)
     return g_strdup(buf);
 }
 
-NetClientState *qemu_new_net_client(NetClientInfo *info,
-                                    NetClientState *peer,
-                                    const char *model,
-                                    const char *name)
+static void qemu_net_client_setup(NetClientState *nc,
+                                  NetClientInfo *info,
+                                  NetClientState *peer,
+                                  const char *model,
+                                  const char *name)
 {
-    NetClientState *nc;
-
-    assert(info->size >= sizeof(NetClientState));
-
-    nc = g_malloc0(info->size);
-
     nc->info = info;
     nc->model = g_strdup(model);
     if (name) {
@@ -210,6 +205,20 @@ NetClientState *qemu_new_net_client(NetClientInfo *info,
 
     nc->send_queue = qemu_new_net_queue(nc);
 
+}
+
+NetClientState *qemu_new_net_client(NetClientInfo *info,
+                                    NetClientState *peer,
+                                    const char *model,
+                                    const char *name)
+{
+    NetClientState *nc;
+
+    assert(info->size >= sizeof(NetClientState));
+
+    nc = g_malloc0(info->size);
+    qemu_net_client_setup(nc, info, peer, model, name);
+
     return nc;
 }