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Diffstat (limited to 'net/mac80211/iface.c')
-rw-r--r--net/mac80211/iface.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 334ee0fb18ca..bfb57dcc1538 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -331,7 +331,7 @@ static void ieee80211_set_default_queues(struct ieee80211_sub_if_data *sdata)
sdata->vif.cab_queue = IEEE80211_INVAL_HW_QUEUE;
}
-int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
+static int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata;
int ret = 0;
@@ -377,7 +377,7 @@ int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
return ret;
}
-void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
+static void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata;
@@ -497,6 +497,12 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
break;
}
+ if (local->monitors == 0 && local->open_count == 0) {
+ res = ieee80211_add_virtual_monitor(local);
+ if (res)
+ goto err_stop;
+ }
+
/* must be before the call to ieee80211_configure_filter */
local->monitors++;
if (local->monitors == 1) {
@@ -511,6 +517,8 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
break;
default:
if (coming_up) {
+ ieee80211_del_virtual_monitor(local);
+
res = drv_add_interface(local, sdata);
if (res)
goto err_stop;
@@ -745,6 +753,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
if (local->monitors == 0) {
local->hw.conf.flags &= ~IEEE80211_CONF_MONITOR;
hw_reconf_flags |= IEEE80211_CONF_CHANGE_MONITOR;
+ ieee80211_del_virtual_monitor(local);
}
ieee80211_adjust_monitor_flags(sdata, -1);
@@ -818,6 +827,9 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
}
}
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+
+ if (local->monitors == local->open_count && local->monitors > 0)
+ ieee80211_add_virtual_monitor(local);
}
static int ieee80211_stop(struct net_device *dev)