41 lines
1.4 KiB
Diff
41 lines
1.4 KiB
Diff
From: Tom Zanussi <tom.zanussi@linux.intel.com>
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Date: Mon, 15 Jan 2018 20:52:07 -0600
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Subject: [PATCH 33/37] tracing: Make tracing_set_clock() non-static
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
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Allow tracing code outside of trace.c to access tracing_set_clock().
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Some applications may require a particular clock in order to function
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properly, such as latency calculations.
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Also, add an accessor returning the current clock string.
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Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
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Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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---
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kernel/trace/trace.c | 2 +-
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kernel/trace/trace.h | 1 +
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2 files changed, 2 insertions(+), 1 deletion(-)
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--- a/kernel/trace/trace.c
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+++ b/kernel/trace/trace.c
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@@ -6219,7 +6219,7 @@ static int tracing_clock_show(struct seq
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return 0;
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}
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-static int tracing_set_clock(struct trace_array *tr, const char *clockstr)
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+int tracing_set_clock(struct trace_array *tr, const char *clockstr)
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{
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int i;
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--- a/kernel/trace/trace.h
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+++ b/kernel/trace/trace.h
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@@ -289,6 +289,7 @@ extern int trace_array_get(struct trace_
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extern void trace_array_put(struct trace_array *tr);
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extern int tracing_set_time_stamp_abs(struct trace_array *tr, bool abs);
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+extern int tracing_set_clock(struct trace_array *tr, const char *clockstr);
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extern bool trace_clock_in_ns(struct trace_array *tr);
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