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mac80211: remove tracing config symbol

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There's little point in this config symbol, if
tracing is disabled the overhead is negligible
and if you think it's too bad you can always
turn off tracing completely.

Also remove the part where we don't have sparse
check the tracing code -- it seems that it can
now deal with it (or the code changed).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2011-11-25 13:31:53 +01:00 committed by John W. Linville
parent 30789eb6cb
commit 61c0d48f15
3 changed files with 2 additions and 25 deletions
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12
net/mac80211/Kconfig
View File

@ -247,15 +247,3 @@ config MAC80211_DEBUG_COUNTERS
and show them in debugfs.
If unsure, say N.
config MAC80211_DRIVER_API_TRACER
bool "Driver API tracer"
depends on MAC80211_DEBUG_MENU
depends on EVENT_TRACING
help
Say Y here to make mac80211 register with the ftrace
framework for the driver API -- you can then see which
driver methods it is calling and which API functions
drivers are calling by looking at the trace.
If unsure, say Y.

4
net/mac80211/Makefile
View File

@ -24,7 +24,8 @@ mac80211-y := \
util.o \
wme.o \
event.o \
chan.o
chan.o \
driver-trace.o
mac80211-$(CONFIG_MAC80211_LEDS) += led.o
mac80211-$(CONFIG_MAC80211_DEBUGFS) += \
@ -41,7 +42,6 @@ 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

11
net/mac80211/driver-trace.h
View File

@ -5,17 +5,6 @@
#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