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Date: Tue, 12 Sep 2017 11:18:50 +0900 From: Masami Hiramatsu <mhiramat@...nel.org> To: Tom Zanussi <tom.zanussi@...ux.intel.com> Cc: rostedt@...dmis.org, tglx@...utronix.de, mhiramat@...nel.org, namhyung@...nel.org, vedang.patel@...el.com, bigeasy@...utronix.de, joel.opensrc@...il.com, joelaf@...gle.com, mathieu.desnoyers@...icios.com, baohong.liu@...el.com, linux-kernel@...r.kernel.org, linux-rt-users@...r.kernel.org Subject: Re: [PATCH v2 38/40] tracing: Make tracing_set_clock() non-static On Tue, 5 Sep 2017 16:57:50 -0500 Tom Zanussi <tom.zanussi@...ux.intel.com> wrote: > 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. It seems this patch should be merged in the next patch, which is actual consumer of this API. Thank you, > > Signed-off-by: Tom Zanussi <tom.zanussi@...ux.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 d40839d..ecdf456 100644 > --- a/kernel/trace/trace.c > +++ b/kernel/trace/trace.c > @@ -6207,7 +6207,7 @@ 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 > -- Masami Hiramatsu <mhiramat@...nel.org>
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