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authorTal Shorer <tal.shorer@gmail.com>2015-08-01 15:27:58 +0300
committerSteven Rostedt <rostedt@goodmis.org>2015-10-20 21:56:10 -0400
commitddd70280bf0e92ad81a9526971409603fba21679 (patch)
treec97e90370c998526b68b62a91295723bb1780086
parentc63b7682b6d90530d3a071ff75b81bfddcce8598 (diff)
downloadlinux-ddd70280bf0e92ad81a9526971409603fba21679.tar.bz2
tracing: gpio: Add Kconfig option for enabling/disabling trace events
Add a new options to trace Kconfig, CONFIG_TRACING_EVENTS_GPIO, that is used for enabling/disabling compilation of gpio function trace events. Link: http://lkml.kernel.org/r/1438432079-11704-4-git-send-email-tal.shorer@gmail.com Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Tal Shorer <tal.shorer@gmail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
-rw-r--r--include/trace/events/gpio.h4
-rw-r--r--kernel/trace/Kconfig7
2 files changed, 11 insertions, 0 deletions
diff --git a/include/trace/events/gpio.h b/include/trace/events/gpio.h
index 927a8ad9e51b..2da73b92d47e 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 1153c43428f3..8d6363f42169 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