1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright (C) 2010-2018 B.A.T.M.A.N. contributors: 3 * 4 * Sven Eckelmann 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of version 2 of the GNU General Public 8 * License as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, see <http://www.gnu.org/licenses/>. 17 */ 18 19 #if !defined(_NET_BATMAN_ADV_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ) 20 #define _NET_BATMAN_ADV_TRACE_H_ 21 22 #include "main.h" 23 24 #include <linux/tracepoint.h> 25 26 #undef TRACE_SYSTEM 27 #define TRACE_SYSTEM batadv 28 29 /* provide dummy function when tracing is disabled */ 30 #if !defined(CONFIG_BATMAN_ADV_TRACING) 31 32 #undef TRACE_EVENT 33 #define TRACE_EVENT(name, proto, ...) \ 34 static inline void trace_ ## name(proto) {} 35 36 #endif /* CONFIG_BATMAN_ADV_TRACING */ 37 38 #define BATADV_MAX_MSG_LEN 256 39 40 TRACE_EVENT(batadv_dbg, 41 42 TP_PROTO(struct batadv_priv *bat_priv, 43 struct va_format *vaf), 44 45 TP_ARGS(bat_priv, vaf), 46 47 TP_STRUCT__entry( 48 __string(device, bat_priv->soft_iface->name) 49 __string(driver, KBUILD_MODNAME) 50 __dynamic_array(char, msg, BATADV_MAX_MSG_LEN) 51 ), 52 53 TP_fast_assign( 54 __assign_str(device, bat_priv->soft_iface->name); 55 __assign_str(driver, KBUILD_MODNAME); 56 WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg), 57 BATADV_MAX_MSG_LEN, 58 vaf->fmt, 59 *vaf->va) >= BATADV_MAX_MSG_LEN); 60 ), 61 62 TP_printk( 63 "%s %s %s", 64 __get_str(driver), 65 __get_str(device), 66 __get_str(msg) 67 ) 68 ); 69 70 #endif /* _NET_BATMAN_ADV_TRACE_H_ || TRACE_HEADER_MULTI_READ */ 71 72 #undef TRACE_INCLUDE_PATH 73 #define TRACE_INCLUDE_PATH . 74 #undef TRACE_INCLUDE_FILE 75 #define TRACE_INCLUDE_FILE trace 76 77 /* This part must be outside protection */ 78 #include <trace/define_trace.h> 79