[PATCH 3/5] tracing: Make tracing_selftest_running/delete nops when not used

Steven Rostedt posted 5 patches 2 years, 8 months ago
[PATCH 3/5] tracing: Make tracing_selftest_running/delete nops when not used
Posted by Steven Rostedt 2 years, 8 months ago
From: "Steven Rostedt (Google)" <rostedt@goodmis.org>

There's no reason to test the condition variables tracing_selftest_running
or tracing_selftest_delete when tracing selftests are not enabled. Make
them define 0s when not the selftests are not configured in.

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
 kernel/trace/trace.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 70f2b511b9cd..004f5f99e943 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -60,6 +60,7 @@
  */
 bool ring_buffer_expanded;
 
+#ifdef CONFIG_FTRACE_STARTUP_TEST
 /*
  * We need to change this state when a selftest is running.
  * A selftest will lurk into the ring-buffer to count the
@@ -75,7 +76,6 @@ static bool __read_mostly tracing_selftest_running;
  */
 bool __read_mostly tracing_selftest_disabled;
 
-#ifdef CONFIG_FTRACE_STARTUP_TEST
 void __init disable_tracing_selftest(const char *reason)
 {
 	if (!tracing_selftest_disabled) {
@@ -83,6 +83,9 @@ void __init disable_tracing_selftest(const char *reason)
 		pr_info("Ftrace startup test is disabled due to %s\n", reason);
 	}
 }
+#else
+#define tracing_selftest_running	0
+#define tracing_selftest_disabled	0
 #endif
 
 /* Pipe tracepoints to printk */
-- 
2.39.2