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Date:   Mon, 7 May 2018 16:24:08 -0300
From:   Arnaldo Carvalho de Melo <acme@kernel.org>
To:     Jiri Olsa <jolsa@kernel.org>
Cc:     Andi Kleen <ak@linux.intel.com>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Ingo Molnar <mingo@kernel.org>,
        Clark Williams <williams@redhat.com>,
        linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
        Jiri Olsa <jolsa@kernel.org>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        David Ahern <dsahern@gmail.com>,
        Namhyung Kim <namhyung@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        kan.liang@linux.intel.com
Subject: Re: [PATCH 05/12] perf pmu: Fix pmu events parsing rule
Message-ID: <20180507192408.GD13491@kernel.org>
References: <20180425160008.3407-1-acme@kernel.org>
 <20180425160008.3407-6-acme@kernel.org>
 <448c4e21-8232-3d04-cac4-49b95c8bca3a@intel.com>
 <20180503103717.GA14776@krava>
 <0c33d3f9-4b76-c94c-7306-e93e8cd8d4aa@intel.com>
 <20180504160228.GA25229@krava>
 <87a7tdphyo.fsf@linux.intel.com>
 <20180507183749.GA2095@redhat.com>
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Em Mon, May 07, 2018 at 03:37:49PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Sat, May 05, 2018 at 08:43:11PM -0700, Andi Kleen escreveu:
> > Jiri Olsa <jolsa@redhat.com> writes:
> > 
> > Please fix this quickly, PT is currently totally non functional in Linus
> > mainline.
> 
> Ok, so I'm reverting this patch, the previous situation was just a
> misleading error message, so it can wait for the discussion about the
> parser fixes to come to a conclusion and a proper patch to be submitted.

... and I'm adding this to my perf/core branch, so that we notice this
faster in the future:

diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 18b06444f230..6829dd416a99 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -1309,6 +1309,14 @@ static int test__checkevent_config_cache(struct perf_evlist *evlist)
 	return 0;
 }
 
+static int test__intel_pt(struct perf_evlist *evlist)
+{
+	struct perf_evsel *evsel = perf_evlist__first(evlist);
+
+	TEST_ASSERT_VAL("wrong name setting", strcmp(evsel->name, "intel_pt//u") == 0);
+	return 0;
+}
+
 static int count_tracepoints(void)
 {
 	struct dirent *events_ent;
@@ -1637,6 +1645,11 @@ static struct evlist_test test__events[] = {
 		.check = test__checkevent_config_cache,
 		.id    = 51,
 	},
+	{
+		.name  = "intel_pt//u",
+		.check = test__intel_pt,
+		.id    = 52,
+	},
 };
 
 static struct evlist_test test__events_pmu[] = {