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-rw-r--r--kernel/trace/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 16e5bb5daaa..d7b2de74463 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -101,6 +101,16 @@ config SCHED_TRACER
This tracer tracks the latency of the highest priority task
to be scheduled in, starting from the point it has woken up.
+config NOP_TRACER
+ bool "NOP Tracer"
+ depends on HAVE_FTRACE
+ depends on DEBUG_KERNEL
+ select TRACING
+ help
+ This tracer does nothing. The primary purpose for it is to
+ politely print the output of ftrace_printk() calls without
+ the overhead of an irrelevant trace taking place.
+
config CONTEXT_SWITCH_TRACER
bool "Trace process context switches"
depends on HAVE_FTRACE