cfg80211: add cfg80211 exported function tracing

Also add tracing to the API functions that drivers
(and mac80211) can call in cfg80211.

Signed-off-by: Beni Lev <beni.lev@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 10 insertions, 3 deletions

diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index 71c362587965..48febd2160ba 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -53,6 +53,8 @@ bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
         struct ieee80211_channel *sec_chan;
         int diff;
 
+        trace_cfg80211_can_beacon_sec_chan(wiphy, chan, channel_type);
+
         switch (channel_type) {
         case NL80211_CHAN_HT40PLUS:
                 diff = 20;
@@ -61,20 +63,25 @@ bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
                 diff = -20;
                 break;
         default:
+                trace_cfg80211_return_bool(true);
                 return true;
         }
 
         sec_chan = ieee80211_get_channel(wiphy, chan->center_freq + diff);
-        if (!sec_chan)
+        if (!sec_chan) {
+                trace_cfg80211_return_bool(false);
                 return false;
+        }
 
         /* we'll need a DFS capability later */
         if (sec_chan->flags & (IEEE80211_CHAN_DISABLED |
                                IEEE80211_CHAN_PASSIVE_SCAN |
                                IEEE80211_CHAN_NO_IBSS |
-                               IEEE80211_CHAN_RADAR))
+                               IEEE80211_CHAN_RADAR)) {
+                trace_cfg80211_return_bool(false);
                 return false;
-
+        }
+        trace_cfg80211_return_bool(true);
         return true;
 }
 EXPORT_SYMBOL(cfg80211_can_beacon_sec_chan);