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ceb53fbf6d
Currently we fail without printing any error message on "perf stat -e task-clock-msecs". The reason is that the task-clock event is matched and the "-msecs" postfix is assumed to be an event modifier - but is not recognized. This patch changes the code to be more informative: $ perf stat -e task-clock-msecs true invalid event modifier: '-msecs' Run 'perf list' for a list of valid events and modifiers And restructures the return value of parse_event_modifier() to allow the printing of all variants of invalid event modifiers. Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/n/tip-wlaw3dvz1ly6wple8l52cfca@git.kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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