mac80211: notify driver of rate control updates

Devices that have internal rate control need to be
notified when the bandwidth or SMPS state changes
just like external rate control algorithms get a
notification now.

Add this notification and clarify the change bits
while at it, the HT_CHANGED bit really meant only
bandwidth changed.

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

1 files changed, 28 insertions, 0 deletions

diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index 21d6f5290a1c..7ea544d86436 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -624,6 +624,34 @@ TRACE_EVENT(drv_sta_state,
         )
 );
 
+TRACE_EVENT(drv_sta_rc_update,
+        TP_PROTO(struct ieee80211_local *local,
+                 struct ieee80211_sub_if_data *sdata,
+                 struct ieee80211_sta *sta,
+                 u32 changed),
+
+        TP_ARGS(local, sdata, sta, changed),
+
+        TP_STRUCT__entry(
+                LOCAL_ENTRY
+                VIF_ENTRY
+                STA_ENTRY
+                __field(u32, changed)
+        ),
+
+        TP_fast_assign(
+                LOCAL_ASSIGN;
+                VIF_ASSIGN;
+                STA_ASSIGN;
+                __entry->changed = changed;
+        ),
+
+        TP_printk(
+                LOCAL_PR_FMT  VIF_PR_FMT  STA_PR_FMT " changed: 0x%x",
+                LOCAL_PR_ARG, VIF_PR_ARG, STA_PR_ARG, __entry->changed
+        )
+);
+
 TRACE_EVENT(drv_sta_add,
         TP_PROTO(struct ieee80211_local *local,
                  struct ieee80211_sub_if_data *sdata,