linux-kernel - Re: [PATCH V4 07/16] perf, x86: track number of events that use LBR callstack

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Date:	Wed, 2 Jul 2014 12:25:18 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	"Yan, Zheng" <zheng.z.yan@...el.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...nel.org, acme@...radead.org,
	eranian@...gle.com, andi@...stfloor.org
Subject: Re: [PATCH V4 07/16] perf, x86: track number of events that use LBR
 callstack

On Mon, Jun 30, 2014 at 04:50:44PM +0800, Yan, Zheng wrote:
>  void intel_pmu_lbr_enable(struct perf_event *event)
>  {
>  	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
> +	struct x86_perf_task_context *task_ctx;

This won't compile; you've forgotten to declare that type.

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