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>
---
 net/hub.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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);
         }
     }
-- 
2.17.1

On 2018-12-04 04:53, Jason Wang wrote:
> 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>
> ---
>  net/hub.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> 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);
>          }
>      }

Sounds fine to me.

Reviewed-by: Thomas Huth <thuth@redhat.com>