perf record: Remove misleading error suggestion
When perf record encounters an error setting up an event it suggests to enable CONFIG_PERF_EVENTS. This is misleading because: - Usually it is enabled (it is really hard to disable on x86) - The problem is usually somewhere else, e.g. the CPU is not supported or an invalid configuration has been used. Remove the misleading suggestion. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20180406203812.3087-4-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -2894,8 +2894,7 @@ int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
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return scnprintf(msg, size,
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"The sys_perf_event_open() syscall returned with %d (%s) for event (%s).\n"
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"/bin/dmesg may provide additional information.\n"
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"No CONFIG_PERF_EVENTS=y kernel support configured?",
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"/bin/dmesg | grep -i perf may provide additional information.\n",
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err, str_error_r(err, sbuf, sizeof(sbuf)),
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perf_evsel__name(evsel));
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}
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