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Subject[Patch v3 2/2] tracing: gpio: add Kconfig option for enabling/disabling trace events
Date
Add a new options to trace Kconfig, CONFIG_TRACING_EVENTS_GPIO, that is
used for enabling/disabling compilation of gpio function trace events.

Signed-off-by: Tal Shorer <tal.shorer@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---
include/trace/events/gpio.h | 4 ++++
kernel/trace/Kconfig | 7 +++++++
2 files changed, 11 insertions(+)

diff --git a/include/trace/events/gpio.h b/include/trace/events/gpio.h
index 927a8ad..2da73b9 100644
--- a/include/trace/events/gpio.h
+++ b/include/trace/events/gpio.h
@@ -1,6 +1,10 @@
#undef TRACE_SYSTEM
#define TRACE_SYSTEM gpio

+#ifndef CONFIG_TRACING_EVENTS_GPIO
+#define NOTRACE
+#endif
+
#if !defined(_TRACE_GPIO_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_GPIO_H

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 3b9a48a..67a1731 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -635,6 +635,13 @@ config TRACE_ENUM_MAP_FILE

If unsure, say N

+config TRACING_EVENTS_GPIO
+ bool "Trace gpio events"
+ depends on GPIOLIB
+ default y
+ help
+ Enable tracing events for gpio subsystem
+
endif # FTRACE

endif # TRACING_SUPPORT
--
2.4.6


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