1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* 2 /*
3 * Portions of this file 3 * Portions of this file
4 * Copyright (C) 2019 Intel Corporation 4 * Copyright (C) 2019 Intel Corporation
5 */ 5 */
6 6
7 #ifdef CONFIG_MAC80211_MESSAGE_TRACING 7 #ifdef CONFIG_MAC80211_MESSAGE_TRACING
8 8
9 #if !defined(__MAC80211_MSG_DRIVER_TRACE) || d 9 #if !defined(__MAC80211_MSG_DRIVER_TRACE) || defined(TRACE_HEADER_MULTI_READ)
10 #define __MAC80211_MSG_DRIVER_TRACE 10 #define __MAC80211_MSG_DRIVER_TRACE
11 11
12 #include <linux/tracepoint.h> 12 #include <linux/tracepoint.h>
13 #include <net/mac80211.h> 13 #include <net/mac80211.h>
14 #include "ieee80211_i.h" 14 #include "ieee80211_i.h"
15 15
16 #undef TRACE_SYSTEM 16 #undef TRACE_SYSTEM
17 #define TRACE_SYSTEM mac80211_msg 17 #define TRACE_SYSTEM mac80211_msg
18 18
>> 19 #define MAX_MSG_LEN 120
>> 20
19 DECLARE_EVENT_CLASS(mac80211_msg_event, 21 DECLARE_EVENT_CLASS(mac80211_msg_event,
20 TP_PROTO(struct va_format *vaf), 22 TP_PROTO(struct va_format *vaf),
21 23
22 TP_ARGS(vaf), 24 TP_ARGS(vaf),
23 25
24 TP_STRUCT__entry( 26 TP_STRUCT__entry(
25 __vstring(msg, vaf->fmt, vaf-> !! 27 __dynamic_array(char, msg, MAX_MSG_LEN)
26 ), 28 ),
27 29
28 TP_fast_assign( 30 TP_fast_assign(
29 __assign_vstr(msg, vaf->fmt, v !! 31 WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
>> 32 MAX_MSG_LEN, vaf->fmt,
>> 33 *vaf->va) >= MAX_MSG_LEN);
30 ), 34 ),
31 35
32 TP_printk("%s", __get_str(msg)) 36 TP_printk("%s", __get_str(msg))
33 ); 37 );
34 38
35 DEFINE_EVENT(mac80211_msg_event, mac80211_info 39 DEFINE_EVENT(mac80211_msg_event, mac80211_info,
36 TP_PROTO(struct va_format *vaf), 40 TP_PROTO(struct va_format *vaf),
37 TP_ARGS(vaf) 41 TP_ARGS(vaf)
38 ); 42 );
39 DEFINE_EVENT(mac80211_msg_event, mac80211_dbg, 43 DEFINE_EVENT(mac80211_msg_event, mac80211_dbg,
40 TP_PROTO(struct va_format *vaf), 44 TP_PROTO(struct va_format *vaf),
41 TP_ARGS(vaf) 45 TP_ARGS(vaf)
42 ); 46 );
43 DEFINE_EVENT(mac80211_msg_event, mac80211_err, 47 DEFINE_EVENT(mac80211_msg_event, mac80211_err,
44 TP_PROTO(struct va_format *vaf), 48 TP_PROTO(struct va_format *vaf),
45 TP_ARGS(vaf) 49 TP_ARGS(vaf)
46 ); 50 );
47 #endif /* !__MAC80211_MSG_DRIVER_TRACE || TRAC 51 #endif /* !__MAC80211_MSG_DRIVER_TRACE || TRACE_HEADER_MULTI_READ */
48 52
49 #undef TRACE_INCLUDE_PATH 53 #undef TRACE_INCLUDE_PATH
50 #define TRACE_INCLUDE_PATH . 54 #define TRACE_INCLUDE_PATH .
51 #undef TRACE_INCLUDE_FILE 55 #undef TRACE_INCLUDE_FILE
52 #define TRACE_INCLUDE_FILE trace_msg 56 #define TRACE_INCLUDE_FILE trace_msg
53 #include <trace/define_trace.h> 57 #include <trace/define_trace.h>
54 58
55 #endif 59 #endif
56 60
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