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Subject[PATCH 1 of 2] perf tools: notify user when unrecognized event is specified
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Previously no indication was given about what went wrong.

Signed-off-by: Marti Raudsepp <marti@juffo.org>

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -677,6 +677,8 @@
if (ret != EVT_FAILED)
goto modifier;

+ fprintf(stderr, "invalid or unsupported event: '%s'\n", *str);
+ fprintf(stderr, "Run 'perf list' for a list of valid events\n");
return EVT_FAILED;

modifier:

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