Do not activate the mac80211 tracing by default as it does not work with 
kernel <= 2.6.32. Compat also includes include/trace/define_trace.h over
include/trace/events/module.h which makes this not compiling any more.

--- a/net/mac80211/Makefile
+++ b/net/mac80211/Makefile
@@ -24,8 +24,7 @@ mac80211-y := \
 	util.o \
 	wme.o \
 	event.o \
-	chan.o \
-	driver-trace.o
+	chan.o
 
 mac80211-$(CONFIG_MAC80211_LEDS) += led.o
 mac80211-$(CONFIG_MAC80211_DEBUGFS) += \
@@ -42,6 +41,7 @@ mac80211-$(CONFIG_MAC80211_MESH) += \
 
 mac80211-$(CONFIG_PM) += pm.o
 
+mac80211-$(CONFIG_MAC80211_DRIVER_API_TRACER) += driver-trace.o
 CFLAGS_driver-trace.o := -I$(src)
 
 # objects for PID algorithm
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -5,6 +5,17 @@
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
 
+#if !defined(CONFIG_MAC80211_DRIVER_API_TRACER) || defined(__CHECKER__)
+#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
 #define TRACE_SYSTEM mac80211