drivers/net/wireless/ath/trace.h

   1 /*
   2  * Copyright (c) 2014 Qualcomm Atheros, Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #if !defined(_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
  18 #define _TRACE_H
  19
  20 #include <linux/tracepoint.h>
  21 #include "ath.h"
  22
  23 #undef TRACE_SYSTEM
  24 #define TRACE_SYSTEM ath
  25
  26 #if !defined(CONFIG_ATH_TRACEPOINTS)
  27
  28 #undef TRACE_EVENT
  29 #define TRACE_EVENT(name, proto, ...) static inline void trace_ ## name(proto) {}
  30
  31 #endif /* CONFIG_ATH_TRACEPOINTS */
  32
  33 TRACE_EVENT(ath_log,
  34
  35             TP_PROTO(struct wiphy *wiphy,
  36                      struct va_format *vaf),
  37
  38             TP_ARGS(wiphy, vaf),
  39
  40             TP_STRUCT__entry(
  41                     __string(device, wiphy_name(wiphy))
  42                     __string(driver, KBUILD_MODNAME)
  43                     __dynamic_array(char, msg, ATH_DBG_MAX_LEN)
  44             ),
  45
  46             TP_fast_assign(
  47                     __assign_str(device, wiphy_name(wiphy));
  48                     __assign_str(driver, KBUILD_MODNAME);
  49                     WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
  50                                            ATH_DBG_MAX_LEN,
  51                                            vaf->fmt,
  52                                            *vaf->va) >= ATH_DBG_MAX_LEN);
  53             ),
  54
  55             TP_printk(
  56                     "%s %s %s",
  57                     __get_str(driver),
  58                     __get_str(device),
  59                     __get_str(msg)
  60             )
  61 );
  62
  63 #endif /* _TRACE_H || TRACE_HEADER_MULTI_READ */
  64
  65 #undef TRACE_INCLUDE_PATH
  66 #define TRACE_INCLUDE_PATH .
  67 #undef TRACE_INCLUDE_FILE
  68 #define TRACE_INCLUDE_FILE trace
  69
  70 /* This part must be outside protection */
  71 #include <trace/define_trace.h>