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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>
This commit is contained in:
Markus Armbruster 2010-02-11 14:44:59 +01:00 committed by Anthony Liguori
parent 668680f75f
commit 62112d181c
7 changed files with 18 additions and 28 deletions
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25
net.c
View File

@ -812,9 +812,6 @@ static int net_init_nic(QemuOpts *opts,
}
nd->used = 1;
if (vlan) {
nd->vlan->nb_guest_devs++;
}
nb_nics++;
return idx;
@ -1278,13 +1275,27 @@ void net_cleanup(void)
void net_check_clients(void)
{
VLANState *vlan;
VLANClientState *vc;
int has_nic, has_host_dev;
QTAILQ_FOREACH(vlan, &vlans, next) {
if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
continue;
if (vlan->nb_guest_devs == 0)
QTAILQ_FOREACH(vc, &vlan->clients, next) {
switch (vc->info->type) {
case NET_CLIENT_TYPE_NIC:
has_nic = 1;
break;
case NET_CLIENT_TYPE_SLIRP:
case NET_CLIENT_TYPE_TAP:
case NET_CLIENT_TYPE_SOCKET:
case NET_CLIENT_TYPE_VDE:
has_host_dev = 1;
break;
default: ;
}
}
if (has_host_dev && !has_nic)
fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
if (vlan->nb_host_devs == 0)
if (has_nic && !has_host_dev)
fprintf(stderr,
"Warning: vlan %d is not connected to host network\n",
vlan->id);

1
net.h
View File

@ -79,7 +79,6 @@ struct VLANState {
int id;
QTAILQ_HEAD(, VLANClientState) clients;
QTAILQ_ENTRY(VLANState) next;
unsigned int nb_guest_devs, nb_host_devs;
NetQueue *send_queue;
};

4
net/slirp.c
View File

@ -738,10 +738,6 @@ int net_init_slirp(QemuOpts *opts,
qemu_free(config);
}
if (ret != -1 && vlan) {
vlan->nb_host_devs++;
}
qemu_free(vnet);
return ret;

4
net/socket.c
View File

@ -569,9 +569,5 @@ int net_init_socket(QemuOpts *opts,
return -1;
}
if (vlan) {
vlan->nb_host_devs++;
}
return 0;
}

4
net/tap-win32.c
View File

@ -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;
}

4
net/tap.c
View File

@ -449,9 +449,5 @@ int net_init_tap(QemuOpts *opts, Monitor *mon, const char *name, VLANState *vlan
}
}
if (vlan) {
vlan->nb_host_devs++;
}
return 0;
}

4
net/vde.c
View File

@ -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;
}