linux-kernel - Re: [PATCH 02/14] perf tools: Introduce struct add_entry

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Date:	Fri, 1 Nov 2013 13:07:35 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Stephane Eranian <eranian@...gle.com>,
	Rodrigo Campos <rodrigo@...g.com.ar>
Subject: Re: [PATCH 02/14] perf tools: Introduce struct add_entry_iter

On Thu, Oct 31, 2013 at 03:56:04PM +0900, Namhyung Kim wrote:
> From: Namhyung Kim <namhyung.kim@....com>

SNIP

> +
> +static int
> +perf_evsel__add_entry(struct perf_evsel *evsel, struct addr_location *al,
> +		      struct perf_sample *sample, struct machine *machine,
> +		      struct add_entry_iter *iter)
> +{
> +	int err;
> +
> +	if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) {
> +		err = machine__resolve_callchain(machine, evsel, al->thread,
> +						 sample, &iter->parent, al,
> +						 iter->rep->max_stack);
> +		if (err)
> +			return err;
> +	}
> +
> +	err = iter->prepare_entry(iter, machine, evsel, al, sample);
> +	if (err)
> +		return err;
> +
> +	err = iter->add_single_entry(iter, al);
> +	if (err)
> +		return err;
> +
> +	while (iter->next_entry(iter, al)) {
> +		err = iter->add_next_entry(iter, al);
> +		if (err)
> +			break;
> +	}
> +
> +	err = iter->finish_entry(iter, al);
> +
> +	return err;

	return iter->finish_entry(iter, al);  ?

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