mac80211: use DECLARE_EVENT_CLASS

For events that include only the local struct as
their parameter, we can use DECLARE_EVENT_CLASS
and save quite some binary size across segments
as well lines of code.

   text	   data	    bss	    dec	    hex	filename
 375745	  19296	    916	 395957	  60ab5	mac80211.ko.before
 367473	  17888	    916	 386277	  5e4e5	mac80211.ko.after
  -8272   -1408       0   -9680   -25d0 delta

Some more tracepoints with identical arguments
could be combined like this but for now this is
the one that benefits most.

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

diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index fbabbc2f181a373ff9e7f6c65f4e5c6c7f2e8630..e5cce19a7d65b95e6d31605785a19c7191ee9e6c 100644 (file)
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -9,6 +9,11 @@
 #undef TRACE_EVENT
 #define TRACE_EVENT(name, proto, ...) \
 static inline void trace_ ## name(proto) {}
+#undef DECLARE_EVENT_CLASS
+#define DECLARE_EVENT_CLASS(...)
+#undef DEFINE_EVENT
+#define DEFINE_EVENT(evt_class, name, proto, ...) \
+static inline void trace_ ## name(proto) {}
 #endif
 
 #undef TRACE_SYSTEM
@@ -38,7 +43,7 @@ static inline void trace_ ## name(proto) {}
  * Tracing for driver callbacks.
  */
 
-TRACE_EVENT(drv_return_void,
+DECLARE_EVENT_CLASS(local_only_evt,
        TP_PROTO(struct ieee80211_local *local),
        TP_ARGS(local),
        TP_STRUCT__entry(
@@ -50,6 +55,11 @@ TRACE_EVENT(drv_return_void,
        TP_printk(LOCAL_PR_FMT, LOCAL_PR_ARG)
 );
 
+DEFINE_EVENT(local_only_evt, drv_return_void,
+       TP_PROTO(struct ieee80211_local *local),
+       TP_ARGS(local)
+);
+
 TRACE_EVENT(drv_return_int,
        TP_PROTO(struct ieee80211_local *local, int ret),
        TP_ARGS(local, ret),
@@ -78,40 +88,14 @@ TRACE_EVENT(drv_return_u64,
        TP_printk(LOCAL_PR_FMT " - %llu", LOCAL_PR_ARG, __entry->ret)
 );
 
-TRACE_EVENT(drv_start,
+DEFINE_EVENT(local_only_evt, drv_start,
        TP_PROTO(struct ieee80211_local *local),
-
-       TP_ARGS(local),
-
-       TP_STRUCT__entry(
-               LOCAL_ENTRY
-       ),
-
-       TP_fast_assign(
-               LOCAL_ASSIGN;
-       ),
-
-       TP_printk(
-               LOCAL_PR_FMT, LOCAL_PR_ARG
-       )
+       TP_ARGS(local)
 );
 
-TRACE_EVENT(drv_stop,
+DEFINE_EVENT(local_only_evt, drv_stop,
        TP_PROTO(struct ieee80211_local *local),
-
-       TP_ARGS(local),
-
-       TP_STRUCT__entry(
-               LOCAL_ENTRY
-       ),
-
-       TP_fast_assign(
-               LOCAL_ASSIGN;
-       ),
-
-       TP_printk(
-               LOCAL_PR_FMT, LOCAL_PR_ARG
-       )
+       TP_ARGS(local)
 );
 
 TRACE_EVENT(drv_add_interface,
@@ -439,40 +423,14 @@ TRACE_EVENT(drv_hw_scan,
        )
 );
 
-TRACE_EVENT(drv_sw_scan_start,
+DEFINE_EVENT(local_only_evt, drv_sw_scan_start,
        TP_PROTO(struct ieee80211_local *local),
-
-       TP_ARGS(local),
-
-       TP_STRUCT__entry(
-               LOCAL_ENTRY
-       ),
-
-       TP_fast_assign(
-               LOCAL_ASSIGN;
-       ),
-
-       TP_printk(
-               LOCAL_PR_FMT, LOCAL_PR_ARG
-       )
+       TP_ARGS(local)
 );
 
-TRACE_EVENT(drv_sw_scan_complete,
+DEFINE_EVENT(local_only_evt, drv_sw_scan_complete,
        TP_PROTO(struct ieee80211_local *local),
-
-       TP_ARGS(local),
-
-       TP_STRUCT__entry(
-               LOCAL_ENTRY
-       ),
-
-       TP_fast_assign(
-               LOCAL_ASSIGN;
-       ),
-
-       TP_printk(
-               LOCAL_PR_FMT, LOCAL_PR_ARG
-       )
+       TP_ARGS(local)
 );
 
 TRACE_EVENT(drv_get_stats,
@@ -702,23 +660,9 @@ TRACE_EVENT(drv_conf_tx,
        )
 );
 
-TRACE_EVENT(drv_get_tsf,
+DEFINE_EVENT(local_only_evt, drv_get_tsf,
        TP_PROTO(struct ieee80211_local *local),
-
-       TP_ARGS(local),
-
-       TP_STRUCT__entry(
-               LOCAL_ENTRY
-       ),
-
-       TP_fast_assign(
-               LOCAL_ASSIGN;
-       ),
-
-       TP_printk(
-               LOCAL_PR_FMT,
-               LOCAL_PR_ARG
-       )
+       TP_ARGS(local)
 );
 
 TRACE_EVENT(drv_set_tsf,
@@ -742,41 +686,14 @@ TRACE_EVENT(drv_set_tsf,
        )
 );
 
-TRACE_EVENT(drv_reset_tsf,
+DEFINE_EVENT(local_only_evt, drv_reset_tsf,
        TP_PROTO(struct ieee80211_local *local),
-
-       TP_ARGS(local),
-
-       TP_STRUCT__entry(
-               LOCAL_ENTRY
-       ),
-
-       TP_fast_assign(
-               LOCAL_ASSIGN;
-       ),
-
-       TP_printk(
-               LOCAL_PR_FMT, LOCAL_PR_ARG
-       )
+       TP_ARGS(local)
 );
 
-TRACE_EVENT(drv_tx_last_beacon,
+DEFINE_EVENT(local_only_evt, drv_tx_last_beacon,
        TP_PROTO(struct ieee80211_local *local),
-
-       TP_ARGS(local),
-
-       TP_STRUCT__entry(
-               LOCAL_ENTRY
-       ),
-
-       TP_fast_assign(
-               LOCAL_ASSIGN;
-       ),
-
-       TP_printk(
-               LOCAL_PR_FMT,
-               LOCAL_PR_ARG
-       )
+       TP_ARGS(local)
 );
 
 TRACE_EVENT(drv_ampdu_action,
@@ -962,22 +879,9 @@ TRACE_EVENT(drv_remain_on_channel,
        )
 );
 
-TRACE_EVENT(drv_cancel_remain_on_channel,
+DEFINE_EVENT(local_only_evt, drv_cancel_remain_on_channel,
        TP_PROTO(struct ieee80211_local *local),
-
-       TP_ARGS(local),
-
-       TP_STRUCT__entry(
-               LOCAL_ENTRY
-       ),
-
-       TP_fast_assign(
-               LOCAL_ASSIGN;
-       ),
-
-       TP_printk(
-               LOCAL_PR_FMT, LOCAL_PR_ARG
-       )
+       TP_ARGS(local)
 );
 
 /*
@@ -1072,23 +976,9 @@ TRACE_EVENT(api_stop_tx_ba_cb,
        )
 );
 
-TRACE_EVENT(api_restart_hw,
+DEFINE_EVENT(local_only_evt, api_restart_hw,
        TP_PROTO(struct ieee80211_local *local),
-
-       TP_ARGS(local),
-
-       TP_STRUCT__entry(
-               LOCAL_ENTRY
-       ),
-
-       TP_fast_assign(
-               LOCAL_ASSIGN;
-       ),
-
-       TP_printk(
-               LOCAL_PR_FMT,
-               LOCAL_PR_ARG
-       )
+       TP_ARGS(local)
 );
 
 TRACE_EVENT(api_beacon_loss,
@@ -1217,40 +1107,14 @@ TRACE_EVENT(api_chswitch_done,
        )
 );
 
-TRACE_EVENT(api_ready_on_channel,
+DEFINE_EVENT(local_only_evt, api_ready_on_channel,
        TP_PROTO(struct ieee80211_local *local),
-
-       TP_ARGS(local),
-
-       TP_STRUCT__entry(
-               LOCAL_ENTRY
-       ),
-
-       TP_fast_assign(
-               LOCAL_ASSIGN;
-       ),
-
-       TP_printk(
-               LOCAL_PR_FMT, LOCAL_PR_ARG
-       )
+       TP_ARGS(local)
 );
 
-TRACE_EVENT(api_remain_on_channel_expired,
+DEFINE_EVENT(local_only_evt, api_remain_on_channel_expired,
        TP_PROTO(struct ieee80211_local *local),
-
-       TP_ARGS(local),
-
-       TP_STRUCT__entry(
-               LOCAL_ENTRY
-       ),
-
-       TP_fast_assign(
-               LOCAL_ASSIGN;
-       ),
-
-       TP_printk(
-               LOCAL_PR_FMT, LOCAL_PR_ARG
-       )
+       TP_ARGS(local)
 );
 
 /*