mac80211: enhance tracing

Enhance tracing by adding tracing for a variety of
callbacks that the drivers call, and also for
internal calls (currently limited to queue status).
This can aid debugging what is going on in mac80211
in interaction with drivers, since we can now see
what drivers call and not just what mac80211 calls
in the driver.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 461167dfa42..d11a54c289a 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1007,6 +1007,8 @@ void ieee80211_beacon_loss(struct ieee80211_vif *vif)
         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
         struct ieee80211_hw *hw = &sdata->local->hw;
 
+        trace_api_beacon_loss(sdata);
+
         WARN_ON(hw->flags & IEEE80211_HW_CONNECTION_MONITOR);
         ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work);
 }
@@ -1017,6 +1019,8 @@ void ieee80211_connection_loss(struct ieee80211_vif *vif)
         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
         struct ieee80211_hw *hw = &sdata->local->hw;
 
+        trace_api_connection_loss(sdata);
+
         WARN_ON(!(hw->flags & IEEE80211_HW_CONNECTION_MONITOR));
         ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work);
 }
@@ -2261,6 +2265,8 @@ void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif,
 {
         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
 
+        trace_api_cqm_rssi_notify(sdata, rssi_event);
+
         cfg80211_cqm_rssi_notify(sdata->dev, rssi_event, gfp);
 }
 EXPORT_SYMBOL(ieee80211_cqm_rssi_notify);