LXR linux/net/batman-adv/trace.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/* Copyright (C) B.A.T.M.A.N. contributors:
   3 *
   4 * Sven Eckelmann
   5 */
   6
   7#if !defined(_NET_BATMAN_ADV_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
   8#define _NET_BATMAN_ADV_TRACE_H_
   9
  10#include "main.h"
  11
  12#include <linux/bug.h>
  13#include <linux/kernel.h>
  14#include <linux/netdevice.h>
  15#include <linux/percpu.h>
  16#include <linux/printk.h>
  17#include <linux/tracepoint.h>
  18
  19#undef TRACE_SYSTEM
  20#define TRACE_SYSTEM batadv
  21
  22/* provide dummy function when tracing is disabled */
  23#if !defined(CONFIG_BATMAN_ADV_TRACING)
  24
  25#undef TRACE_EVENT
  26#define TRACE_EVENT(name, proto, ...) \
  27        static inline void trace_ ## name(proto) {}
  28
  29#endif /* CONFIG_BATMAN_ADV_TRACING */
  30
  31#define BATADV_MAX_MSG_LEN      256
  32
  33TRACE_EVENT(batadv_dbg,
  34
  35            TP_PROTO(struct batadv_priv *bat_priv,
  36                     struct va_format *vaf),
  37
  38            TP_ARGS(bat_priv, vaf),
  39
  40            TP_STRUCT__entry(
  41                    __string(device, bat_priv->soft_iface->name)
  42                    __string(driver, KBUILD_MODNAME)
  43                    __dynamic_array(char, msg, BATADV_MAX_MSG_LEN)
  44            ),
  45
  46            TP_fast_assign(
  47                    __assign_str(device, bat_priv->soft_iface->name);
  48                    __assign_str(driver, KBUILD_MODNAME);
  49                    WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
  50                                           BATADV_MAX_MSG_LEN,
  51                                           vaf->fmt,
  52                                           *vaf->va) >= BATADV_MAX_MSG_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 /* _NET_BATMAN_ADV_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>
  72