xen: fix xen-mapcache build on non-Xen capable targets

[qemu.git] / net.c

diff --git a/net.c b/net.c
index 4f777c3dac05e2ea584ae7db02410607fd729fca..66123ad409e53efa3459d30ef022b7d05ce1d2e1 100644 (file)
--- a/net.c
+++ b/net.c
@@ -710,7 +710,7 @@ int qemu_find_nic_model(NICInfo *nd, const char * const *models,
             return i;
     }
 
-    error_report("qemu: Unsupported NIC model: %s", nd->model);
+    error_report("Unsupported NIC model: %s", nd->model);
     return -1;
 }
 
@@ -1304,18 +1304,15 @@ void net_check_clients(void)
 {
     VLANState *vlan;
     VLANClientState *vc;
-    int seen_nics = 0;
+    int i;
 
     /* Don't warn about the default network setup that you get if
-     * no command line -net options are specified. There are two
-     * cases that we would otherwise complain about:
+     * no command line -net or -netdev options are specified. There
+     * are two cases that we would otherwise complain about:
      * (1) board doesn't support a NIC but the implicit "-net nic"
-     * requested one; we'd otherwise complain about more NICs being
-     * specified than we support, and also that the vlan set up by
-     * the implicit "-net user" didn't have any NICs connected to it
-     * (2) CONFIG_SLIRP not set: we'd otherwise complain about the
-     * implicit "-net nic" setting up a nic that wasn't connected to
-     * anything.
+     * requested one
+     * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
+     * sets up a nic that isn't connected to anything.
      */
     if (default_net) {
         return;
@@ -1327,7 +1324,6 @@ void net_check_clients(void)
         QTAILQ_FOREACH(vc, &vlan->clients, next) {
             switch (vc->info->type) {
             case NET_CLIENT_TYPE_NIC:
-                seen_nics++;
                 has_nic = 1;
                 break;
             case NET_CLIENT_TYPE_SLIRP:
@@ -1347,25 +1343,25 @@ void net_check_clients(void)
                     vlan->id);
     }
     QTAILQ_FOREACH(vc, &non_vlan_clients, next) {
-        if (vc->info->type == NET_CLIENT_TYPE_NIC) {
-            seen_nics++;
-        }
         if (!vc->peer) {
             fprintf(stderr, "Warning: %s %s has no peer\n",
                     vc->info->type == NET_CLIENT_TYPE_NIC ? "nic" : "netdev",
                     vc->name);
         }
     }
-    if (seen_nics != nb_nics) {
-        /* Number of NICs requested by user on command line doesn't match
-         * the number the model actually registered with us.
-         * This will generally only happen for models of embedded boards
-         * with no PCI bus or similar. PCI based machines can instantiate
-         * all requested NICs as PCI devices but usually embedded boards
-         * only have a single NIC.
-         */
-        fprintf(stderr, "Warning: more nics requested than this machine "
-                "supports; some have been ignored\n");
+
+    /* Check that all NICs requested via -net nic actually got created.
+     * NICs created via -device don't need to be checked here because
+     * they are always instantiated.
+     */
+    for (i = 0; i < MAX_NICS; i++) {
+        NICInfo *nd = &nd_table[i];
+        if (nd->used && !nd->instantiated) {
+            fprintf(stderr, "Warning: requested NIC (%s, model %s) "
+                    "was not created (not supported by this machine?)\n",
+                    nd->name ? nd->name : "anonymous",
+                    nd->model ? nd->model : "unspecified");
+        }
     }
 }