Commit fb967063 authored Oct 13, 2016 by Andi Kleen Committed by Arnaldo Carvalho de Melo Oct 24, 2016

perf pmu: Only print Using CPUID message once

With uncore event aliases which are duplicated over multiple PMUs the
"Using CPUID" message with -v could be printed many times.  Only print
it once.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1476393332-20732-3-git-send-email-andi@firstfloor.org

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent b3151ea5

tools/perf/util/pmu.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -504,6 +504,7 @@ static void pmu_add_cpu_aliases(struct list_head *head)
		struct pmu_events_map *map;
		struct pmu_event *pe;
		char *cpuid;
		static bool printed;

		cpuid = getenv("PERF_CPUID");
		if (cpuid)
		@@ -513,7 +514,10 @@ static void pmu_add_cpu_aliases(struct list_head *head)
		if (!cpuid)
		return;

		if (!printed) {
		pr_debug("Using CPUID %s\n", cpuid);
		printed = true;
		}

		i = 0;
		while (1) {