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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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1261a02a0c
The validate_event() was failing on valid event combinations. The function was assuming that if x86_schedule_event() returned 0, it meant error. But x86_schedule_event() returns the counter index and 0 is a perfectly valid value. An error is returned if the function returns a negative value. Furthermore, validate_event() was also failing for event groups because the event->pmu was not set until after hw_perf_event_init(). Signed-off-by: Stephane Eranian <eranian@google.com> Cc: peterz@infradead.org Cc: paulus@samba.org Cc: perfmon2-devel@lists.sourceforge.net Cc: eranian@gmail.com LKML-Reference: <4b0bdf36.1818d00a.07cc.25ae@mx.google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> -- arch/x86/kernel/cpu/perf_event.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) |
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