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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>
This commit is contained in:
Steven Rostedt (Red Hat) 2015-04-06 23:02:22 -04:00 committed by Steven Rostedt
parent 7267b23859
commit 1bc1e4d048
3 changed files with 54 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
net/mac80211/trace.c
View File

@ -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, ...)

38
net/mac80211/trace.h
View File

@ -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

53
net/mac80211/trace_msg.h Normal file
View File

@ -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