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/bug.h> 25 #include <linux/kernel.h> 26 #include <linux/netdevice.h> 27 #include <linux/percpu.h> 28 #include <linux/printk.h> 29 #include <linux/tracepoint.h> 30 #include <linux/types.h> 31 32 #undef TRACE_SYSTEM 33 #define TRACE_SYSTEM batadv 34 35 /* provide dummy function when tracing is disabled */ 36 #if !defined(CONFIG_BATMAN_ADV_TRACING) 37 38 #undef TRACE_EVENT 39 #define TRACE_EVENT(name, proto, ...) \ 40 static inline void trace_ ## name(proto) {} 41 42 #endif /* CONFIG_BATMAN_ADV_TRACING */ 43 44 #define BATADV_MAX_MSG_LEN 256 45 46 TRACE_EVENT(batadv_dbg, 47 48 TP_PROTO(struct batadv_priv *bat_priv, 49 struct va_format *vaf), 50 51 TP_ARGS(bat_priv, vaf), 52 53 TP_STRUCT__entry( 54 __string(device, bat_priv->soft_iface->name) 55 __string(driver, KBUILD_MODNAME) 56 __dynamic_array(char, msg, BATADV_MAX_MSG_LEN) 57 ), 58 59 TP_fast_assign( 60 __assign_str(device, bat_priv->soft_iface->name); 61 __assign_str(driver, KBUILD_MODNAME); 62 WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg), 63 BATADV_MAX_MSG_LEN, 64 vaf->fmt, 65 *vaf->va) >= BATADV_MAX_MSG_LEN); 66 ), 67 68 TP_printk( 69 "%s %s %s", 70 __get_str(driver), 71 __get_str(device), 72 __get_str(msg) 73 ) 74 ); 75 76 #endif /* _NET_BATMAN_ADV_TRACE_H_ || TRACE_HEADER_MULTI_READ */ 77 78 #undef TRACE_INCLUDE_PATH 79 #define TRACE_INCLUDE_PATH . 80 #undef TRACE_INCLUDE_FILE 81 #define TRACE_INCLUDE_FILE trace 82 83 /* This part must be outside protection */ 84 #include <trace/define_trace.h> 85