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Date:   Wed, 6 Dec 2017 14:37:52 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     John Garry <john.garry@...wei.com>
Cc:     peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        alexander.shishkin@...ux.intel.com, namhyung@...nel.org,
        ak@...ux.intel.com, wcohen@...hat.com, will.deacon@....com,
        ganapatrao.kulkarni@...ium.com, catalin.marinas@....com,
        mark.rutland@....com, xuwei5@...ilicon.com, linuxarm@...wei.com,
        zhangshaokun@...ilicon.com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 2/5] perf jevents: add support for arch recommended
 events

On Wed, Dec 06, 2017 at 12:13:16AM +0800, John Garry wrote:

SNIP

> ---
>  tools/perf/pmu-events/jevents.c | 215 ++++++++++++++++++++++++++++++++++++----
>  1 file changed, 198 insertions(+), 17 deletions(-)
> 
> diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
> index a0d489e..a820ed4 100644
> --- a/tools/perf/pmu-events/jevents.c
> +++ b/tools/perf/pmu-events/jevents.c
> @@ -42,6 +42,7 @@
>  #include <dirent.h>
>  #include <sys/time.h>			/* getrlimit */
>  #include <sys/resource.h>		/* getrlimit */
> +#include <sys/queue.h>
>  #include <ftw.h>
>  #include <sys/stat.h>
>  #include "jsmn.h"
> @@ -366,6 +367,94 @@ static int print_events_table_entry(void *data, char *name, char *event,
>  	return 0;
>  }
>  
> +struct event_struct {
> +	char *name;
> +	char *event;
> +	char *desc;
> +	char *long_desc;
> +	char *pmu;
> +	char *unit;
> +	char *perpkg;
> +	char *metric_expr;
> +	char *metric_name;
> +	char *metric_group;
> +	LIST_ENTRY(event_struct) list;

is there any reason you don't use the 'struct list_head' ?
I dont think we want another thingie involved for lists

jirka

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