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[PATCH v3 30/33] tracing: Make tracing_set_clock() non-static

Started byTom Zanussi <tom.zanussi@linux.intel.com>
First post2017-09-22 22:10 +0200
Last post2017-09-22 22:10 +0200
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  [PATCH v3 30/33] tracing: Make tracing_set_clock() non-static Tom Zanussi <tom.zanussi@linux.intel.com> - 2017-09-22 22:10 +0200

#1737807 — [PATCH v3 30/33] tracing: Make tracing_set_clock() non-static

FromTom Zanussi <tom.zanussi@linux.intel.com>
Date2017-09-22 22:10 +0200
Subject[PATCH v3 30/33] tracing: Make tracing_set_clock() non-static
Message-ID<usCqT-21j-39@gated-at.bofh.it>
Allow tracing code outside of trace.c to access tracing_set_clock().

Some applications may require a particular clock in order to function
properly, such as latency calculations.

Also, add an accessor returning the current clock string.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
---
 kernel/trace/trace.c | 2 +-
 kernel/trace/trace.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 5eb313a..a66a30a 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6213,7 +6213,7 @@ static int tracing_clock_show(struct seq_file *m, void *v)
 	return 0;
 }
 
-static int tracing_set_clock(struct trace_array *tr, const char *clockstr)
+int tracing_set_clock(struct trace_array *tr, const char *clockstr)
 {
 	int i;
 
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 7b78762..1f3443a 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -288,6 +288,7 @@ enum {
 extern void trace_array_put(struct trace_array *tr);
 
 extern int tracing_set_time_stamp_abs(struct trace_array *tr, bool abs);
+extern int tracing_set_clock(struct trace_array *tr, const char *clockstr);
 
 extern bool trace_clock_in_ns(struct trace_array *tr);
 
-- 
1.9.3

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