mac80211: Move message tracepoints to their own header

Every tracing file must have its own TRACE_SYSTEM defined.
The mac80211 tracepoint header broke this and add in the middle
of the file had:

 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM mac80211_msg

Unfortunately, this broke new code in the ftrace infrastructure.
Moving the mac80211_msg into its own trace file with its own
TRACE_SYSTEM defined fixes the issue.

Link: http://lkml.kernel.org/r/1428389938.1841.1.camel@sipsolutions.net
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

diff --git a/net/mac80211/trace.c b/net/mac80211/trace.c
index 386e45d..edfe0c1 100644 (file)
--- a/net/mac80211/trace.c
+++ b/net/mac80211/trace.c
@@ -8,6 +8,7 @@
 #include "debug.h"
 #define CREATE_TRACE_POINTS
 #include "trace.h"
+#include "trace_msg.h"
 
 #ifdef CONFIG_MAC80211_MESSAGE_TRACING
 void __sdata_info(const char *fmt, ...)

diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 263a956..755a538 100644 (file)
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -2312,44 +2312,6 @@ TRACE_EVENT(drv_tdls_recv_channel_switch,
        )
 );
 
-#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

diff --git a/net/mac80211/trace_msg.h b/net/mac80211/trace_msg.h
new file mode 100644 (file)
index 0000000..768f7c2
--- /dev/null
+++ b/net/mac80211/trace_msg.h
@@ -0,0 +1,53 @@
+#ifdef CONFIG_MAC80211_MESSAGE_TRACING
+
+#if !defined(__MAC80211_MSG_DRIVER_TRACE) || defined(TRACE_HEADER_MULTI_READ)
+#define __MAC80211_MSG_DRIVER_TRACE
+
+#include <linux/tracepoint.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+
+#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 /* !__MAC80211_MSG_DRIVER_TRACE || TRACE_HEADER_MULTI_READ */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace_msg
+#include <trace/define_trace.h>
+
+#endif