1 files changed, 11 insertions, 6 deletions

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index bde6f03512d5..e2a4ff6fc3a6 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -244,16 +244,21 @@ config STACK_TRACER
 
           This tracer works by hooking into every function call that the
           kernel executes, and keeping a maximum stack depth value and
-          stack-trace saved. Because this logic has to execute in every
-          kernel function, all the time, this option can slow down the
-          kernel measurably and is generally intended for kernel
-          developers only.
+          stack-trace saved.  If this is configured with DYNAMIC_FTRACE
+          then it will not have any overhead while the stack tracer
+          is disabled.
+
+          To enable the stack tracer on bootup, pass in 'stacktrace'
+          on the kernel command line.
+
+          The stack tracer can also be enabled or disabled via the
+          sysctl kernel.stack_tracer_enabled
 
           Say N if unsure.
 
-config BTS_TRACER
+config HW_BRANCH_TRACER
         depends on HAVE_HW_BRANCH_TRACER
-        bool "Trace branches"
+        bool "Trace hw branches"
         select TRACING
         help
           This tracer records all branches on the system in a circular