From: Tom Zanussi Date: Thu, 21 Dec 2017 10:02:55 -0600 Subject: [PATCH 33/37] tracing: Make tracing_set_clock() non-static Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.8-rt9.tar.xz 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 Signed-off-by: Sebastian Andrzej Siewior --- kernel/trace/trace.c | 2 +- kernel/trace/trace.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -6219,7 +6219,7 @@ static int tracing_clock_show(struct seq 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; --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -289,6 +289,7 @@ extern int trace_array_get(struct trace_ 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);