1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright (C) 2010-2019 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 #include <linux/types.h> 19 20 #undef TRACE_SYSTEM 21 #define TRACE_SYSTEM batadv 22 23 /* provide dummy function when tracing is disabled */ 24 #if !defined(CONFIG_BATMAN_ADV_TRACING) 25 26 #undef TRACE_EVENT 27 #define TRACE_EVENT(name, proto, ...) \ 28 static inline void trace_ ## name(proto) {} 29 30 #endif /* CONFIG_BATMAN_ADV_TRACING */ 31 32 #define BATADV_MAX_MSG_LEN 256 33 34 TRACE_EVENT(batadv_dbg, 35 36 TP_PROTO(struct batadv_priv *bat_priv, 37 struct va_format *vaf), 38 39 TP_ARGS(bat_priv, vaf), 40 41 TP_STRUCT__entry( 42 __string(device, bat_priv->soft_iface->name) 43 __string(driver, KBUILD_MODNAME) 44 __dynamic_array(char, msg, BATADV_MAX_MSG_LEN) 45 ), 46 47 TP_fast_assign( 48 __assign_str(device, bat_priv->soft_iface->name); 49 __assign_str(driver, KBUILD_MODNAME); 50 WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg), 51 BATADV_MAX_MSG_LEN, 52 vaf->fmt, 53 *vaf->va) >= BATADV_MAX_MSG_LEN); 54 ), 55 56 TP_printk( 57 "%s %s %s", 58 __get_str(driver), 59 __get_str(device), 60 __get_str(msg) 61 ) 62 ); 63 64 #endif /* _NET_BATMAN_ADV_TRACE_H_ || TRACE_HEADER_MULTI_READ */ 65 66 #undef TRACE_INCLUDE_PATH 67 #define TRACE_INCLUDE_PATH . 68 #undef TRACE_INCLUDE_FILE 69 #define TRACE_INCLUDE_FILE trace 70 71 /* This part must be outside protection */ 72 #include <trace/define_trace.h> 73
