Re: [PATCH v7 3/6] perf/tools: Refactoring metricgroup__add_metric function

[Jiri Olsa]

On Fri, Mar 27, 2020 at 03:55:25PM +0530, Kajol Jain wrote:
> This patch refactor metricgroup__add_metric function where
> some part of it move to function metricgroup__add_metric_param.
> No logic change.
> 
> Signed-off-by: Kajol Jain <kjain@xxxxxxxxxxxxx>
> ---
>  tools/perf/util/metricgroup.c | 61 +++++++++++++++++++++--------------
>  1 file changed, 36 insertions(+), 25 deletions(-)
> 
> diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
> index 926449a7cdbf..b905eaa907a7 100644
> --- a/tools/perf/util/metricgroup.c
> +++ b/tools/perf/util/metricgroup.c
> @@ -485,6 +485,40 @@ static bool metricgroup__has_constraint(struct pmu_event *pe)
>  	return false;
>  }
>  
> +static int __metricgroup__add_metric(struct strbuf *events,
> +			struct list_head *group_list, struct pmu_event *pe)
> +{
> +
> +	const char **ids;
> +	int idnum;
> +	struct egroup *eg;
> +	int ret = -EINVAL;
> +
> +	if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum) < 0)
> +		return ret;

no need for ret variable, return -EINVAL directly

jirka