mac80211: add ieee80211_get_operstate() function

Add ieee80211_get_operstate() function to get the operstate
of the netdevice.

This is needed for drivers that need to know when the interface
is IF_OPER_UP (e.g. wl12xx), and block notifiers can't be used
(e.g. because the interface is already IF_OPER_UP, like after
resuming from suspend)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index d595265d6c22..0c6e9ef8c7f8 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2652,3 +2652,10 @@ void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif,
         cfg80211_cqm_rssi_notify(sdata->dev, rssi_event, gfp);
 }
 EXPORT_SYMBOL(ieee80211_cqm_rssi_notify);
+
+unsigned char ieee80211_get_operstate(struct ieee80211_vif *vif)
+{
+        struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+        return sdata->dev->operstate;
+}
+EXPORT_SYMBOL(ieee80211_get_operstate);