From 5ab968413515e17788003c522f7ca40a07fae900 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Fri, 17 Aug 2012 03:09:39 -0700
Subject: [PATCH] sparc64: Rework sparc_pmu_enable() so that the side effects
 are clearer.

When cpuc->n_events is zero, we actually don't do anything and we just
write the cpuc->pcr[0] value as-is without any modifications.

The "pcr = 0;" assignment there was just useless and confusing.

Signed-off-by: David S. Miller <davem@davemloft.net>
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