linux-kernel - Re: [PATCH 04/11] perf, tools: Support per pmu json aliases

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Message-ID: <20170119001735.GH5460@tassilo.jf.intel.com>
Date:   Wed, 18 Jan 2017 16:17:35 -0800
From:   Andi Kleen <ak@...ux.intel.com>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     Andi Kleen <andi@...stfloor.org>, acme@...nel.org,
        jolsa@...nel.org, linux-kernel@...r.kernel.org, mingo@...nel.org
Subject: Re: [PATCH 04/11] perf, tools: Support per pmu json aliases

> > index 8bffe99d8e3f..4bfc98953aba 100644
> > --- a/tools/perf/util/pmu.c
> > +++ b/tools/perf/util/pmu.c
> > @@ -587,14 +587,13 @@ static struct perf_pmu *pmu_lookup(const char *name)
> >  	if (pmu_format(name, &format))
> >  		return NULL;
> >  
> > -	if (pmu_aliases(name, &aliases))
> > +	if (pmu_type(name, &type))
> >  		return NULL;
> >  
> > -	pmu_add_cpu_aliases(&aliases, name);
> > -
> > -	if (pmu_type(name, &type))
> > +	if (pmu_aliases(name, &aliases))
> >  		return NULL;
> >  
> > +	pmu_add_cpu_aliases(&aliases, name);
> 
> AFAICS you switched the calls.. how does it matter?

It avoids lots of duplicate messages with -v (and also is more efficient)

-Andi