net: hub: suppress warnings of no host network for qtest

If we want to qtest through hub, it would be much more simpler and
safer to configure the hub without host network. So silent this
warnings for qtest.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20181204035347.6148-3-jasowang@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/hub.c b/net/hub.c
index 78b671ed95..5795a678ed 100644
--- a/net/hub.c
+++ b/net/hub.c
@@ -20,6 +20,7 @@
 #include "hub.h"
 #include "qemu/iov.h"
 #include "qemu/error-report.h"
+#include "sysemu/qtest.h"
 
 /*
  * A hub broadcasts incoming packets to all its ports except the source port.
@@ -346,7 +347,7 @@ void net_hub_check_clients(void)
         if (has_host_dev && !has_nic) {
             warn_report("hub %d with no nics", hub->id);
         }
-        if (has_nic && !has_host_dev) {
+        if (has_nic && !has_host_dev && !qtest_enabled()) {
             warn_report("hub %d is not connected to host network", hub->id);
         }
     }