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-rw-r--r--kernel/trace/trace_functions.c18
1 files changed, 7 insertions, 11 deletions
diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c
index 0f85a64003d3..e74f6d0a3216 100644
--- a/kernel/trace/trace_functions.c
+++ b/kernel/trace/trace_functions.c
@@ -42,24 +42,20 @@ static void stop_function_trace(struct trace_array *tr)
42 tracing_stop_cmdline_record(); 42 tracing_stop_cmdline_record();
43} 43}
44 44
45static void function_trace_init(struct trace_array *tr) 45static int function_trace_init(struct trace_array *tr)
46{ 46{
47 if (tr->ctrl) 47 start_function_trace(tr);
48 start_function_trace(tr); 48 return 0;
49} 49}
50 50
51static void function_trace_reset(struct trace_array *tr) 51static void function_trace_reset(struct trace_array *tr)
52{ 52{
53 if (tr->ctrl) 53 stop_function_trace(tr);
54 stop_function_trace(tr);
55} 54}
56 55
57static void function_trace_ctrl_update(struct trace_array *tr) 56static void function_trace_start(struct trace_array *tr)
58{ 57{
59 if (tr->ctrl) 58 function_reset(tr);
60 start_function_trace(tr);
61 else
62 stop_function_trace(tr);
63} 59}
64 60
65static struct tracer function_trace __read_mostly = 61static struct tracer function_trace __read_mostly =
@@ -67,7 +63,7 @@ static struct tracer function_trace __read_mostly =
67 .name = "function", 63 .name = "function",
68 .init = function_trace_init, 64 .init = function_trace_init,
69 .reset = function_trace_reset, 65 .reset = function_trace_reset,
70 .ctrl_update = function_trace_ctrl_update, 66 .start = function_trace_start,
71#ifdef CONFIG_FTRACE_SELFTEST 67#ifdef CONFIG_FTRACE_SELFTEST
72 .selftest = trace_selftest_startup_function, 68 .selftest = trace_selftest_startup_function,
73#endif 69#endif