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-rw-r--r--kernel/trace/trace_branch.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/trace/trace_branch.c b/kernel/trace/trace_branch.c
index ad8c22efff41..8333715e4066 100644
--- a/kernel/trace/trace_branch.c
+++ b/kernel/trace/trace_branch.c
@@ -155,6 +155,13 @@ static enum print_line_t trace_branch_print(struct trace_iterator *iter,
155 return TRACE_TYPE_HANDLED; 155 return TRACE_TYPE_HANDLED;
156} 156}
157 157
158static void branch_print_header(struct seq_file *s)
159{
160 seq_puts(s, "# TASK-PID CPU# TIMESTAMP CORRECT"
161 " FUNC:FILE:LINE\n");
162 seq_puts(s, "# | | | | | "
163 " |\n");
164}
158 165
159static struct trace_event trace_branch_event = { 166static struct trace_event trace_branch_event = {
160 .type = TRACE_BRANCH, 167 .type = TRACE_BRANCH,
@@ -169,6 +176,7 @@ static struct tracer branch_trace __read_mostly =
169#ifdef CONFIG_FTRACE_SELFTEST 176#ifdef CONFIG_FTRACE_SELFTEST
170 .selftest = trace_selftest_startup_branch, 177 .selftest = trace_selftest_startup_branch,
171#endif /* CONFIG_FTRACE_SELFTEST */ 178#endif /* CONFIG_FTRACE_SELFTEST */
179 .print_header = branch_print_header,
172}; 180};
173 181
174__init static int init_branch_tracer(void) 182__init static int init_branch_tracer(void)