linux-kernel - Re: [RFC v2 1/5] perf/pmu-events/jevents: Add enum to store aggregation like PerPkg

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Date:   Sun, 12 Jul 2020 20:55:34 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Kajol Jain <kjain@...ux.ibm.com>
Cc:     acme@...nel.org, peterz@...radead.org, mingo@...hat.com,
        mark.rutland@....com, alexander.shishkin@...ux.intel.com,
        pc@...ibm.com, namhyung@...nel.org, ak@...ux.intel.com,
        yao.jin@...ux.intel.com, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org, irogers@...gle.com,
        maddy@...ux.ibm.com, ravi.bangoria@...ux.ibm.com,
        anju@...ux.vnet.ibm.com, kan.liang@...ux.intel.com,
        nasastry@...ibm.com
Subject: Re: [RFC v2 1/5] perf/pmu-events/jevents: Add enum to store
 aggregation like PerPkg

On Tue, Jul 07, 2020 at 05:53:10PM +0530, Kajol Jain wrote:

SNIP

>  			}
>  
> diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
> index 93fe72a9dc0b..3cafbb320d68 100644
> --- a/tools/perf/util/pmu.c
> +++ b/tools/perf/util/pmu.c
> @@ -306,7 +306,7 @@ static bool perf_pmu_merge_alias(struct perf_pmu_alias *newalias,
>  static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
>  				 char *desc, char *val,
>  				 char *long_desc, char *topic,
> -				 char *unit, char *perpkg,
> +				 char *unit, char *aggr_mode,
>  				 char *metric_expr,
>  				 char *metric_name,
>  				 char *deprecated)
> @@ -378,7 +378,7 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
>  			return -1;
>  		snprintf(alias->unit, sizeof(alias->unit), "%s", unit);
>  	}
> -	alias->per_pkg = perpkg && sscanf(perpkg, "%d", &num) == 1 && num == 1;
> +	alias->per_pkg = aggr_mode && sscanf(aggr_mode, "%d", &num) == 1 && num == 1;

should you rather use 'num == PerPkg' instead 'num == 1' ?

jirka