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, 13 insertions, 0 deletions

diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index a957077dd961..7f97a087f452 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -145,6 +145,7 @@ void __cfg80211_scan_done(struct work_struct *wk)
 
 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted)
 {
+        trace_cfg80211_scan_done(request, aborted);
         WARN_ON(request != wiphy_to_dev(request->wiphy)->scan_req);
 
         request->aborted = aborted;
@@ -182,6 +183,7 @@ void __cfg80211_sched_scan_results(struct work_struct *wk)
 
 void cfg80211_sched_scan_results(struct wiphy *wiphy)
 {
+        trace_cfg80211_sched_scan_results(wiphy);
         /* ignore if we're not scanning */
         if (wiphy_to_dev(wiphy)->sched_scan_req)
                 queue_work(cfg80211_wq,
@@ -193,6 +195,8 @@ void cfg80211_sched_scan_stopped(struct wiphy *wiphy)
 {
         struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+        trace_cfg80211_sched_scan_stopped(wiphy);
+
         mutex_lock(&rdev->sched_scan_mtx);
         __cfg80211_stop_sched_scan(rdev, true);
         mutex_unlock(&rdev->sched_scan_mtx);
@@ -485,6 +489,9 @@ struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
         struct cfg80211_internal_bss *bss, *res = NULL;
         unsigned long now = jiffies;
 
+        trace_cfg80211_get_bss(wiphy, channel, bssid, ssid, ssid_len, capa_mask,
+                               capa_val);
+
         spin_lock_bh(&dev->bss_lock);
 
         list_for_each_entry(bss, &dev->bss_list, list) {
@@ -506,6 +513,7 @@ struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
         spin_unlock_bh(&dev->bss_lock);
         if (!res)
                 return NULL;
+        trace_cfg80211_return_bss(&res->pub);
         return &res->pub;
 }
 EXPORT_SYMBOL(cfg80211_get_bss);
@@ -818,6 +826,7 @@ cfg80211_inform_bss(struct wiphy *wiphy,
         if (res->pub.capability & WLAN_CAPABILITY_ESS)
                 regulatory_hint_found_beacon(wiphy, channel, gfp);
 
+        trace_cfg80211_return_bss(&res->pub);
         /* cfg80211_bss_update gives us a referenced result */
         return &res->pub;
 }
@@ -830,10 +839,13 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
                           s32 signal, gfp_t gfp)
 {
         struct cfg80211_internal_bss *res;
+
         size_t ielen = len - offsetof(struct ieee80211_mgmt,
                                       u.probe_resp.variable);
         size_t privsz;
 
+        trace_cfg80211_inform_bss_frame(wiphy, channel, mgmt, len, signal);
+
         if (WARN_ON(!mgmt))
                 return NULL;
 
@@ -887,6 +899,7 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
         if (res->pub.capability & WLAN_CAPABILITY_ESS)
                 regulatory_hint_found_beacon(wiphy, channel, gfp);
 
+        trace_cfg80211_return_bss(&res->pub);
         /* cfg80211_bss_update gives us a referenced result */
         return &res->pub;
 }