linux-kernel - Re: [PATCH v2 1/6] perf metricgroup: Make find

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Date:   Wed, 7 Apr 2021 11:09:03 +0530
From:   kajoljain <kjain@...ux.ibm.com>
To:     John Garry <john.garry@...wei.com>, Ian Rogers <irogers@...gle.com>
Cc:     Will Deacon <will@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>, linuxarm@...wei.com,
        "Liang, Kan" <kan.liang@...ux.intel.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        zhangshaokun@...ilicon.com, Paul Clarke <pc@...ibm.com>
Subject: Re: [PATCH v2 1/6] perf metricgroup: Make find_metric() public with
 name change



On 4/6/21 3:24 PM, John Garry wrote:
> On 02/04/2021 00:16, Ian Rogers wrote:
>> On Thu, Mar 25, 2021 at 3:38 AM John Garry <john.garry@...wei.com> wrote:
>>>
>>> Function find_metric() is required for the metric processing in the
>>> pmu-events testcase, so make it public. Also change the name to include
>>> "metricgroup".
>>
>> Would it make more sense as "pmu_events_map__find_metric" ?
>>
> 
> So all functions apart from one in metricgroup.h are named metricgroup__XXX, so I was trying to keep this style - apart from the double-underscore (which can be remedied).
> 
> Personally I don't think pmu_events_map__find_metric name fits with that convention.

I agree, most of the functions in metricgroup.c named as metricgroup__xxx. May be something like metricgroup__find_metric will be better.

Thanks,
Kajol Jain

> 
> Thanks,
> John
> 
>> Thanks,
>> Ian
>>
>>> Signed-off-by: John Garry <john.garry@...wei.com>
>>> ---
>>>   tools/perf/util/metricgroup.c | 5 +++--
>>>   tools/perf/util/metricgroup.h | 3 ++-
>>>   2 files changed, 5 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
>>> index 6acb44ad439b..71a13406e0bd 100644
>>> --- a/tools/perf/util/metricgroup.c
>>> +++ b/tools/perf/util/metricgroup.c
>>> @@ -900,7 +900,8 @@ static int __add_metric(struct list_head *metric_list,
>>>                      (match_metric(__pe->metric_group, __metric) ||      \
>>>                       match_metric(__pe->metric_name, __metric)))
>>>
>>> -static struct pmu_event *find_metric(const char *metric, struct pmu_events_map *map)
>>> +struct pmu_event *metrcgroup_find_metric(const char *metric,
>>> +                                        struct pmu_events_map *map)
>>>   {
>>>          struct pmu_event *pe;
>>>          int i;
>>> @@ -985,7 +986,7 @@ static int __resolve_metric(struct metric *m,
>>>                          struct expr_id *parent;
>>>                          struct pmu_event *pe;
>>>
>>> -                       pe = find_metric(cur->key, map);
>>> +                       pe = metrcgroup_find_metric(cur->key, map);
>>>                          if (!pe)
>>>                                  continue;
>>>
>>> diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h
>>> index ed1b9392e624..1674c6a36d74 100644
>>> --- a/tools/perf/util/metricgroup.h
>>> +++ b/tools/perf/util/metricgroup.h
>>> @@ -44,7 +44,8 @@ int metricgroup__parse_groups(const struct option *opt,
>>>                                bool metric_no_group,
>>>                                bool metric_no_merge,
>>>                                struct rblist *metric_events);
>>> -
>>> +struct pmu_event *metrcgroup_find_metric(const char *metric,
>>> +                                        struct pmu_events_map *map);
>>>   int metricgroup__parse_groups_test(struct evlist *evlist,
>>>                                     struct pmu_events_map *map,
>>>                                     const char *str,
>>> -- 
>>> 2.26.2
>>>
>> .
>>
>