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SubjectRe: [PATCH RT 3/5] tracing: Restore proper field flag printing when displaying triggers
On 2018-05-16 09:36:45 [-0400], Steven Rostedt wrote:
> diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
> index 9dac8bae4f34..4745ed588607 100644
> --- a/kernel/trace/trace_events_hist.c
> +++ b/kernel/trace/trace_events_hist.c
> @@ -4916,6 +4916,16 @@ static void hist_field_print(struct seq_file *m, struct hist_field *hist_field)
> seq_printf(m, "%s", field_name);
> } else if (hist_field->flags & HIST_FIELD_FL_TIMESTAMP)
> seq_puts(m, "common_timestamp");
> +
> + if (hist_field->flags) {
> + if (!(hist_field->flags & HIST_FIELD_FL_VAR_REF) &&
> + !(hist_field->flags & HIST_FIELD_FL_EXPR)) {
> + const char *flags = get_hist_field_flags(hist_field);
> +
> + if (flags)
> + seq_printf(m, ".%s", flags);
> + }
> + }
> }
>
> static int event_hist_trigger_print(struct seq_file *m,

For v4.16 I needed commit 0ae7961e75c3 ("tracing: Fix display of hist
trigger expressions containing timestamps") in order to get this one
cleanly applied. Comparing with -rc3 it looks like commit 5e4cf2bf6d1c
("tracing: Fix a potential NULL dereference") would be great addition.

Safe to take them, right?

Sebastian

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