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

[Peter Zijlstra]

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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