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authorJohannes Berg <johannes.berg@intel.com>2012-06-22 13:36:25 +0200
committerJohannes Berg <johannes.berg@intel.com>2012-06-24 11:33:18 +0200
commit3fae0273168026ed7b6065674f1410f531d58164 (patch)
tree18333b3760f1c5fea83d1f92a1a6c8a0c1e0212d /net/mac80211/trace.h
parent011ad0e9f8533cd003fb760663713df2655a2114 (diff)
downloadop-kernel-dev-3fae0273168026ed7b6065674f1410f531d58164.zip
op-kernel-dev-3fae0273168026ed7b6065674f1410f531d58164.tar.gz
mac80211: trace debug messages
It can be very useful to have all debug messages available when debugging, but hard to correlate between different sources, so add a trace event for all mac80211 debug messages. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/trace.h')
-rw-r--r--net/mac80211/trace.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 392bcc9..2e60f4a 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -1632,6 +1632,45 @@ TRACE_EVENT(stop_queue,
LOCAL_PR_ARG, __entry->queue, __entry->reason
)
);
+
+#ifdef CONFIG_MAC80211_MESSAGE_TRACING
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM mac80211_msg
+
+#define MAX_MSG_LEN 100
+
+DECLARE_EVENT_CLASS(mac80211_msg_event,
+ TP_PROTO(struct va_format *vaf),
+
+ TP_ARGS(vaf),
+
+ TP_STRUCT__entry(
+ __dynamic_array(char, msg, MAX_MSG_LEN)
+ ),
+
+ TP_fast_assign(
+ WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
+ MAX_MSG_LEN, vaf->fmt,
+ *vaf->va) >= MAX_MSG_LEN);
+ ),
+
+ TP_printk("%s", __get_str(msg))
+);
+
+DEFINE_EVENT(mac80211_msg_event, mac80211_info,
+ TP_PROTO(struct va_format *vaf),
+ TP_ARGS(vaf)
+);
+DEFINE_EVENT(mac80211_msg_event, mac80211_dbg,
+ TP_PROTO(struct va_format *vaf),
+ TP_ARGS(vaf)
+);
+DEFINE_EVENT(mac80211_msg_event, mac80211_err,
+ TP_PROTO(struct va_format *vaf),
+ TP_ARGS(vaf)
+);
+#endif
+
#endif /* !__MAC80211_DRIVER_TRACE || TRACE_HEADER_MULTI_READ */
#undef TRACE_INCLUDE_PATH
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