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authorSeth Forshee2012-11-15 08:07:59 -0600
committerJohn W. Linville2012-11-20 14:05:22 -0500
commitf5c4f10852d42012c6a7a793c15bf18882e61da0 (patch)
tree3ceb09d5451e7c701472ca39f36bff97dc25170a /drivers/net/wireless/brcm80211
parent75be3e24eeedbc9ec5faf3483fe9b449abec94e8 (diff)
brcm80211: Allow trace support to be enabled separately from debug
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. Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by: Arend van Spriel <arend@broadcom.com> Tested-by: Daniel Wagner <wagi@monom.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/brcm80211')
-rw-r--r--drivers/net/wireless/brcm80211/Kconfig11
-rw-r--r--drivers/net/wireless/brcm80211/brcmsmac/brcms_trace_events.h6
2 files changed, 14 insertions, 3 deletions
diff --git a/drivers/net/wireless/brcm80211/Kconfig b/drivers/net/wireless/brcm80211/Kconfig
index b480088b3dbe..1d92d874ebb6 100644
--- a/drivers/net/wireless/brcm80211/Kconfig
+++ b/drivers/net/wireless/brcm80211/Kconfig
@@ -55,6 +55,17 @@ config BRCMFMAC_USB
IEEE802.11n embedded FullMAC WLAN driver. Say Y if you want to
use the driver for an USB wireless card.
+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
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/brcms_trace_events.h b/drivers/net/wireless/brcm80211/brcmsmac/brcms_trace_events.h
index 27dd73eef56d..bcf6969044a2 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 */