linux-kernel - [BUG] perf/x86: Intel uncore_pmu_to

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Message-ID: <CABPqkBQkXtBKJUQX1czwyVAFMvro4akvfpAvLyStPLzntdZhuQ@mail.gmail.com>
Date:	Tue, 25 Sep 2012 12:44:00 +0200
From:	Stephane Eranian <eranian@...gle.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	"Yan, Zheng" <zheng.z.yan@...el.com>,
	"ak@...ux.intel.com" <ak@...ux.intel.com>,
	Peter Zijlstra <peterz@...radead.org>,
	"mingo@...e.hu" <mingo@...e.hu>
Subject: [BUG] perf/x86: Intel uncore_pmu_to_box() local variable typo

Hi,

I don't understand why the local variable box needs to
be declared static here:

static struct intel_uncore_box *
uncore_pmu_to_box(struct intel_uncore_pmu *pmu, int cpu)
{
        static struct intel_uncore_box *box;

        box = *per_cpu_ptr(pmu->box, cpu);
        if (box)
                return box;
        ....
}
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