Commit-ID:  fb967063699e25ae73f0991672f99bd7104f70c8
Gitweb:     http://git.kernel.org/tip/fb967063699e25ae73f0991672f99bd7104f70c8
Author:     Andi Kleen <[email protected]>
AuthorDate: Thu, 13 Oct 2016 14:15:24 -0700
Committer:  Arnaldo Carvalho de Melo <[email protected]>
CommitDate: Mon, 24 Oct 2016 11:07:41 -0300

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 <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: 
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
 tools/perf/util/pmu.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index b1474dc..d7174f3 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -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;
 
-       pr_debug("Using CPUID %s\n", cpuid);
+       if (!printed) {
+               pr_debug("Using CPUID %s\n", cpuid);
+               printed = true;
+       }
 
        i = 0;
        while (1) {

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