Since the runtime overhead of trace support is small when tracing is
disabled, users may be interested in turning on trace support while
leaving other debug features off. Add a new config option named
CONFIG_BRCM_TRACING for this purpose. This option is selected by
CONFIG_BRCMDBG, leaving behavior of that option unchanged.
Signed-off-by: Seth Forshee <seth.forshee@xxxxxxxxxxxxx>
---
drivers/net/wireless/brcm80211/Kconfig | 12 ++++++++++++
.../brcm80211/brcmsmac/brcms_trace_events.h | 6 +++---
2 files changed, 15 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/brcm80211/Kconfig b/drivers/net/wireless/brcm80211/Kconfig
index c9d811e..9e90a23 100644
--- a/drivers/net/wireless/brcm80211/Kconfig
+++ b/drivers/net/wireless/brcm80211/Kconfig
@@ -63,8 +63,20 @@ config BRCMISCAN
new E-Scan method which uses less memory in firmware and gives no
limitation on the number of scan results.
+config BRCM_TRACING
+ bool "Broadcom device tracing"
+ depends on BRCMSMAC || BRCMFMAC
+ ---help---
+ If you say Y here, the Broadcom wireless drivers will register
+ with ftrace to dump event information into the trace ringbuffer.
+ Tracing can be enabled at runtime to aid in debugging wireless
+ issues. This option adds a small amount of overhead when tracing
+ is disabled. If unsure, say Y to allow developers to better help
+ you when wireless problems occur.
+
config BRCMDBG
bool "Broadcom driver debug functions"
depends on BRCMSMAC || BRCMFMAC
+ select BRCM_TRACING
---help---
Selecting this enables additional code for debug purposes.
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/brcms_trace_events.h b/drivers/net/wireless/brcm80211/brcmsmac/brcms_trace_events.h
index 27dd73e..bcf6969 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/brcms_trace_events.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/brcms_trace_events.h
@@ -24,7 +24,7 @@
#include <linux/tracepoint.h>
#include "mac80211_if.h"
-#ifndef CONFIG_BRCMDBG
+#ifndef CONFIG_BRCM_TRACING
#undef TRACE_EVENT
#define TRACE_EVENT(name, proto, ...) \
static inline void trace_ ## name(proto) {}
@@ -80,7 +80,7 @@ TRACE_EVENT(brcms_dpc,
#endif /* __TRACE_BRCMSMAC_H */
-#ifdef CONFIG_BRCMDBG
+#ifdef CONFIG_BRCM_TRACING
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
@@ -89,4 +89,4 @@ TRACE_EVENT(brcms_dpc,
#include <trace/define_trace.h>
-#endif /* CONFIG_BRCMDBG */
+#endif /* CONFIG_BRCM_TRACING */
--
1.7.9.5
--
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