diff options
| -rw-r--r-- | drivers/net/wireless/ath/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/Makefile | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/main.c | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/trace.c | 20 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/trace.h | 71 |
6 files changed, 107 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/Kconfig b/drivers/net/wireless/ath/Kconfig index c63d1159db5c..ce7826009eeb 100644 --- a/drivers/net/wireless/ath/Kconfig +++ b/drivers/net/wireless/ath/Kconfig @@ -25,6 +25,14 @@ config ATH_DEBUG Say Y, if you want to debug atheros wireless drivers. Right now only ath9k makes use of this. +config ATH_TRACEPOINTS + bool "Atheros wireless tracing" + depends on ATH_DEBUG + depends on EVENT_TRACING + ---help--- + This option enables tracepoints for atheros wireless drivers. + Currently, ath9k makes use of this facility. + config ATH_REG_DYNAMIC_USER_REG_HINTS bool "Atheros dynamic user regulatory hints" depends on CFG80211_CERTIFICATION_ONUS diff --git a/drivers/net/wireless/ath/Makefile b/drivers/net/wireless/ath/Makefile index 7d023b0f13b4..89f8d5979402 100644 --- a/drivers/net/wireless/ath/Makefile +++ b/drivers/net/wireless/ath/Makefile @@ -17,4 +17,8 @@ ath-objs := main.o \ dfs_pri_detector.o ath-$(CONFIG_ATH_DEBUG) += debug.o +ath-$(CONFIG_ATH_TRACEPOINTS) += trace.o + ccflags-y += -D__CHECK_ENDIAN__ + +CFLAGS_trace.o := -I$(src) diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h index a3b6e27d9121..e5ba6faf3281 100644 --- a/drivers/net/wireless/ath/ath.h +++ b/drivers/net/wireless/ath/ath.h @@ -268,6 +268,7 @@ enum ATH_DEBUG { }; #define ATH_DBG_DEFAULT (ATH_DBG_FATAL) +#define ATH_DBG_MAX_LEN 512 #ifdef CONFIG_ATH_DEBUG diff --git a/drivers/net/wireless/ath/main.c b/drivers/net/wireless/ath/main.c index 8b0ac14d5c32..83f47af19280 100644 --- a/drivers/net/wireless/ath/main.c +++ b/drivers/net/wireless/ath/main.c @@ -20,6 +20,7 @@ #include <linux/module.h> #include "ath.h" +#include "trace.h" MODULE_AUTHOR("Atheros Communications"); MODULE_DESCRIPTION("Shared library for Atheros wireless LAN cards."); @@ -84,6 +85,8 @@ void ath_printk(const char *level, const struct ath_common* common, else printk("%sath: %pV", level, &vaf); + trace_ath_log(common->hw->wiphy, &vaf); + va_end(args); } EXPORT_SYMBOL(ath_printk); diff --git a/drivers/net/wireless/ath/trace.c b/drivers/net/wireless/ath/trace.c new file mode 100644 index 000000000000..18fb3a071931 --- /dev/null +++ b/drivers/net/wireless/ath/trace.c @@ -0,0 +1,20 @@ +/* + * Copyright (c) 2014 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <linux/module.h> + +#define CREATE_TRACE_POINTS +#include "trace.h" diff --git a/drivers/net/wireless/ath/trace.h b/drivers/net/wireless/ath/trace.h new file mode 100644 index 000000000000..ba711644d27e --- /dev/null +++ b/drivers/net/wireless/ath/trace.h @@ -0,0 +1,71 @@ +/* + * Copyright (c) 2014 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#if !defined(_TRACE_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_H + +#include <linux/tracepoint.h> +#include "ath.h" + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM ath + +#if !defined(CONFIG_ATH_TRACEPOINTS) + +#undef TRACE_EVENT +#define TRACE_EVENT(name, proto, ...) static inline void trace_ ## name(proto) {} + +#endif /* CONFIG_ATH_TRACEPOINTS */ + +TRACE_EVENT(ath_log, + + TP_PROTO(struct wiphy *wiphy, + struct va_format *vaf), + + TP_ARGS(wiphy, vaf), + + TP_STRUCT__entry( + __string(device, wiphy_name(wiphy)) + __string(driver, KBUILD_MODNAME) + __dynamic_array(char, msg, ATH_DBG_MAX_LEN) + ), + + TP_fast_assign( + __assign_str(device, wiphy_name(wiphy)); + __assign_str(driver, KBUILD_MODNAME); + WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg), + ATH_DBG_MAX_LEN, + vaf->fmt, + *vaf->va) >= ATH_DBG_MAX_LEN); + ), + + TP_printk( + "%s %s %s", + __get_str(driver), + __get_str(device), + __get_str(msg) + ) +); + +#endif /* _TRACE_H || TRACE_HEADER_MULTI_READ */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE trace + +/* This part must be outside protection */ +#include <trace/define_trace.h> |