From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiri Olsa Subject: Re: [RFC] perf/jevents: Add new structure to pass json fields. Date: Wed, 26 Aug 2020 13:00:46 +0200 Message-ID: <20200826110046.GF703542@krava> References: <20200825074041.378520-1-kjain@linux.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: John Garry Cc: Kajol Jain , acme@kernel.org, ak@linux.intel.com, yao.jin@linux.intel.com, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, irogers@google.com, maddy@linux.ibm.com, ravi.bangoria@linux.ibm.com List-Id: linux-perf-users.vger.kernel.org On Tue, Aug 25, 2020 at 09:14:11AM +0100, John Garry wrote: SNIP > > goto free_strings; > > } > > - err = func(data, name, real_event(name, event), desc, long_desc, > > - pmu, unit, perpkg, metric_expr, metric_name, > > - metric_group, deprecated, metric_constraint); > > + je->event = real_event(je->name, je->event); > > + err = func(data, je); > > free_strings: > > - free(event); > > - free(desc); > > - free(name); > > - free(long_desc); > > free(extra_desc); > > - free(pmu); > > free(filter); > > - free(perpkg); > > - free(deprecated); > > - free(unit); > > - free(metric_expr); > > - free(metric_name); > > - free(metric_group); > > - free(metric_constraint); > > free(arch_std); > > + free(je); > > if (err) > > break; > > diff --git a/tools/perf/pmu-events/jevents.h b/tools/perf/pmu-events/jevents.h > > index 2afc8304529e..e696edf70e9a 100644 > > --- a/tools/perf/pmu-events/jevents.h > > +++ b/tools/perf/pmu-events/jevents.h > > Somewhat unrelated - this file only seems to be included in jevents.c, so I > don't see why it exists... ah right.. I won't mind getting rid of it > > @@ -2,14 +2,28 @@ > > #ifndef JEVENTS_H > > #define JEVENTS_H 1 > > +#include "pmu-events.h" > > + > > +struct json_event { > > + char *name; > > + char *event; > > + char *desc; > > + char *topic; > > + char *long_desc; > > + char *pmu; > > + char *unit; > > + char *perpkg; > > + char *metric_expr; > > + char *metric_name; > > + char *metric_group; > > + char *deprecated; > > + char *metric_constraint; > > This looks very much like struct event_struct, so could look to consolidate: > > struct event_struct { > struct list_head list; > char *name; > char *event; > char *desc; > char *long_desc; > char *pmu; > char *unit; > char *perpkg; > char *metric_expr; > char *metric_name; > char *metric_group; > char *deprecated; > char *metric_constraint; > }; as Andi said they come from different layers, I think it's better to keep them separated even if they share some fields thanks, jirka