net: Fix bogus "Warning: vlan 0 with no nics" with -device

net_check_clients() prints this when an VLAN has host devices, but no
guest devices.  It uses VLANState members nb_guest_devs and
nb_host_devs to keep track of these devices.  However, -device does
not update nb_guest_devs, only net_init_nic() does that, for -net nic.

Check the VLAN clients directly, and remove the counters.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
(cherry picked from commit 62112d181ca33fea976100c4335dfc3e2f727e6c)

5 files changed, 0 insertions, 20 deletions

diff --git a/net/slirp.c b/net/slirp.c
index 3f91c4bb3c..50ac0b9bbf 100644
--- a/net/slirp.c
+++ b/net/slirp.c
@@ -728,10 +728,6 @@ int net_init_slirp(QemuOpts *opts,
         qemu_free(config);
     }
 
-    if (ret != -1 && vlan) {
-        vlan->nb_host_devs++;
-    }
-
     qemu_free(vnet);
 
     return ret;
diff --git a/net/socket.c b/net/socket.c
index 5533737e4b..442a9c790c 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -569,9 +569,5 @@ int net_init_socket(QemuOpts *opts,
         return -1;
     }
 
-    if (vlan) {
-        vlan->nb_host_devs++;
-    }
-
     return 0;
 }
diff --git a/net/tap-win32.c b/net/tap-win32.c
index b717c17243..8370c803bf 100644
--- a/net/tap-win32.c
+++ b/net/tap-win32.c
@@ -714,10 +714,6 @@ int net_init_tap(QemuOpts *opts, Monitor *mon, const char *name, VLANState *vlan
         return -1;
     }
 
-    if (vlan) {
-        vlan->nb_host_devs++;
-    }
-
     return 0;
 }
 
diff --git a/net/tap.c b/net/tap.c
index 0d8b424123..adbc97992f 100644
--- a/net/tap.c
+++ b/net/tap.c
@@ -441,9 +441,5 @@ int net_init_tap(QemuOpts *opts, Monitor *mon, const char *name, VLANState *vlan
         }
     }
 
-    if (vlan) {
-        vlan->nb_host_devs++;
-    }
-
     return 0;
 }
diff --git a/net/vde.c b/net/vde.c
index 42b4633501..0b46fa6405 100644
--- a/net/vde.c
+++ b/net/vde.c
@@ -127,9 +127,5 @@ int net_init_vde(QemuOpts *opts, Monitor *mon, const char *name, VLANState *vlan
         return -1;
     }
 
-    if (vlan) {
-        vlan->nb_host_devs++;
-    }
-
     return 0;
 }