mac80211: driver operation debugging

This makes mac80211 use the event tracing framework
to log all operations as given to the driver. This
will need to be extended with more information, but
as a start it should be good.

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

1 files changed, 12 insertions, 0 deletions

diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index 182c9c5c6818..19a4c66e143e 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -206,3 +206,15 @@ 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 see which
+          driver methods it is calling then by looking at the
+          trace.
+
+          If unsure, say N.