From 15fde1101a1aed11958e0d86bc360f01866a74b1 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Fri, 27 Feb 2015 09:48:32 -0800
Subject: [PATCH] perf/x86: Only dump PEBS register when PEBS has been detected

Technically PEBS_ENABLED is only guaranteed to exist when we
detected PEBS. So add a check for this to the PMU dump function.
I don't think it can happen on a real CPU, but could in a VM.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: eranian@google.com
Link: http://lkml.kernel.org/r/1425059312-18217-4-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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