mac80211: remove get_tx_stats() driver op

get_tx_stats() driver operation is not currently used anywhere in mac80211
and there are no plans to use it in the not-so-near future. So it can go
without anyone missing it.

Signed-off-by: Kalle Valo <kalle.valo@iki.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

4 files changed, 0 insertions, 54 deletions

diff --git a/Documentation/DocBook/mac80211.tmpl b/Documentation/DocBook/mac80211.tmpl
index 971d1c0c83e..affb15a344a 100644
--- a/Documentation/DocBook/mac80211.tmpl
+++ b/Documentation/DocBook/mac80211.tmpl
@@ -234,7 +234,6 @@ usage should require reading the full document.
       <title>Multiple queues and QoS support</title>
       <para>TBD</para>
 !Finclude/net/mac80211.h ieee80211_tx_queue_params
-!Finclude/net/mac80211.h ieee80211_tx_queue_stats
     </chapter>
 
     <chapter id="AP">
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index a19fac35259..414d774028b 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -117,19 +117,6 @@ struct ieee80211_tx_queue_params {
         bool uapsd;
 };
 
-/**
- * struct ieee80211_tx_queue_stats - transmit queue statistics
- *
- * @len: number of packets in queue
- * @limit: queue length limit
- * @count: number of frames sent
- */
-struct ieee80211_tx_queue_stats {
-        unsigned int len;
-        unsigned int limit;
-        unsigned int count;
-};
-
 struct ieee80211_low_level_stats {
         unsigned int dot11ACKFailureCount;
         unsigned int dot11RTSFailureCount;
@@ -1548,13 +1535,6 @@ enum ieee80211_ampdu_mlme_action {
  *      Returns a negative error code on failure.
  *      The callback can sleep.
  *
- * @get_tx_stats: Get statistics of the current TX queue status. This is used
- *      to get number of currently queued packets (queue length), maximum queue
- *      size (limit), and total number of packets sent using each TX queue
- *      (count). The 'stats' pointer points to an array that has hw->queues
- *      items.
- *      The callback must be atomic.
- *
  * @get_tsf: Get the current TSF timer value from firmware/hardware. Currently,
  *      this is only used for IBSS mode BSSID merging and debugging. Is not a
  *      required function.
@@ -1648,8 +1628,6 @@ struct ieee80211_ops {
                         enum sta_notify_cmd, struct ieee80211_sta *sta);
         int (*conf_tx)(struct ieee80211_hw *hw, u16 queue,
                        const struct ieee80211_tx_queue_params *params);
-        int (*get_tx_stats)(struct ieee80211_hw *hw,
-                            struct ieee80211_tx_queue_stats *stats);
         u64 (*get_tsf)(struct ieee80211_hw *hw);
         void (*set_tsf)(struct ieee80211_hw *hw, u64 tsf);
         void (*reset_tsf)(struct ieee80211_hw *hw);
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 855e85b5506..c3d844093a2 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -290,14 +290,6 @@ static inline int drv_conf_tx(struct ieee80211_local *local, u16 queue,
         return ret;
 }
 
-static inline int drv_get_tx_stats(struct ieee80211_local *local,
-                                   struct ieee80211_tx_queue_stats *stats)
-{
-        int ret = local->ops->get_tx_stats(&local->hw, stats);
-        trace_drv_get_tx_stats(local, stats, ret);
-        return ret;
-}
-
 static inline u64 drv_get_tsf(struct ieee80211_local *local)
 {
         u64 ret = -1ULL;
diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index c984910bf27..41baf730a5c 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -630,29 +630,6 @@ TRACE_EVENT(drv_conf_tx,
         )
 );
 
-TRACE_EVENT(drv_get_tx_stats,
-        TP_PROTO(struct ieee80211_local *local,
-                 struct ieee80211_tx_queue_stats *stats,
-                 int ret),
-
-        TP_ARGS(local, stats, ret),
-
-        TP_STRUCT__entry(
-                LOCAL_ENTRY
-                __field(int, ret)
-        ),
-
-        TP_fast_assign(
-                LOCAL_ASSIGN;
-                __entry->ret = ret;
-        ),
-
-        TP_printk(
-                LOCAL_PR_FMT " ret:%d",
-                LOCAL_PR_ARG, __entry->ret
-        )
-);
-
 TRACE_EVENT(drv_get_tsf,
         TP_PROTO(struct ieee80211_local *local, u64 ret),