From: Mark Rutland <mark.rutland@arm.com>
Date: Mon, 8 Aug 2011 13:56:02 +0000 (+0100)
Subject: ARM: perf: remove unnecessary armpmu->stop
X-Git-Tag: v3.2-rc1~130^2~7^2^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1b69beb7684c79673995607939d8acab51056b63;p=pandora-kernel.git

ARM: perf: remove unnecessary armpmu->stop

As armpmu_disable will call armpmu->stop when the last event has been
removed, this is pointless and simply adds to the noise when debugging.
Additionally, due to this call occurring in a preemptible context, this
is problematic for per-cpu locking of PMU registers (where we will
attempt to access per-cpu spinlock for use with raw_spin_lock_irqsave).

This patch removes the call to armpmu->stop.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---

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