convert net_init_nic() to NetClientOptions

v1->v2:
- NetLegacyNicOptions::vectors is of type uint32
Signed-off-by: NLaszlo Ersek <lersek@redhat.com>
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>

net.c

@@ -748,12 +748,15 @@ int net_handle_fd_param(Monitor *mon, const char *param)
     return fd;
 }
 
-static int net_init_nic(QemuOpts *opts, const NetClientOptions *new_opts,
+static int net_init_nic(QemuOpts *old_opts, const NetClientOptions *opts,
                         const char *name, VLANState *vlan)
 {
     int idx;
     NICInfo *nd;
-    const char *netdev;
+    const NetLegacyNicOptions *nic;
+
+    assert(opts->kind == NET_CLIENT_OPTIONS_KIND_NIC);
+    nic = opts->nic;
 
     idx = nic_get_free_idx();
     if (idx == -1 || nb_nics >= MAX_NICS) {
@@ -765,10 +768,10 @@ static int net_init_nic(QemuOpts *opts, const NetClientOptions *new_opts,
 
     memset(nd, 0, sizeof(*nd));
 
-    if ((netdev = qemu_opt_get(opts, "netdev"))) {
-        nd->netdev = qemu_find_netdev(netdev);
+    if (nic->has_netdev) {
+        nd->netdev = qemu_find_netdev(nic->netdev);
         if (!nd->netdev) {
-            error_report("netdev '%s' not found", netdev);
+            error_report("netdev '%s' not found", nic->netdev);
             return -1;
         }
     } else {
@@ -778,26 +781,28 @@ static int net_init_nic(QemuOpts *opts, const NetClientOptions *new_opts,
     if (name) {
         nd->name = g_strdup(name);
     }
-    if (qemu_opt_get(opts, "model")) {
-        nd->model = g_strdup(qemu_opt_get(opts, "model"));
+    if (nic->has_model) {
+        nd->model = g_strdup(nic->model);
     }
-    if (qemu_opt_get(opts, "addr")) {
-        nd->devaddr = g_strdup(qemu_opt_get(opts, "addr"));
+    if (nic->has_addr) {
+        nd->devaddr = g_strdup(nic->addr);
     }
 
-    if (qemu_opt_get(opts, "macaddr") &&
-        net_parse_macaddr(nd->macaddr.a, qemu_opt_get(opts, "macaddr")) < 0) {
+    if (nic->has_macaddr &&
+        net_parse_macaddr(nd->macaddr.a, nic->macaddr) < 0) {
         error_report("invalid syntax for ethernet address");
         return -1;
     }
     qemu_macaddr_default_if_unset(&nd->macaddr);
 
-    nd->nvectors = qemu_opt_get_number(opts, "vectors",
-                                       DEV_NVECTORS_UNSPECIFIED);
-    if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED &&
-        (nd->nvectors < 0 || nd->nvectors > 0x7ffffff)) {
-        error_report("invalid # of vectors: %d", nd->nvectors);
-        return -1;
+    if (nic->has_vectors) {
+        if (nic->vectors > 0x7ffffff) {
+            error_report("invalid # of vectors: %"PRIu32, nic->vectors);
+            return -1;
+        }
+        nd->nvectors = nic->vectors;
+    } else {
+        nd->nvectors = DEV_NVECTORS_UNSPECIFIED;
     }
 
     nd->used = 1;