perf: Remove unused function perf_mux_hrtimer_cancel()

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 598182dcc2606de60cd8880b3c2761173ccbe80c..f5288293d667a255b3aaf992e76df816b0f8c1ac 100644 (file)
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -772,34 +772,6 @@ static enum hrtimer_restart perf_mux_hrtimer_handler(struct hrtimer *hr)
        return ret;
 }
 
-/* CPU is going down */
-static void perf_mux_hrtimer_cancel(int cpu)
-{
-       struct perf_cpu_context *cpuctx;
-       struct pmu *pmu;
-       unsigned long flags;
-
-       if (WARN_ON(cpu != smp_processor_id()))
-               return;
-
-       local_irq_save(flags);
-
-       rcu_read_lock();
-
-       list_for_each_entry_rcu(pmu, &pmus, entry) {
-               cpuctx = this_cpu_ptr(pmu->pmu_cpu_context);
-
-               if (pmu->task_ctx_nr == perf_sw_context)
-                       continue;
-
-               hrtimer_cancel(&cpuctx->hrtimer);
-       }
-
-       rcu_read_unlock();
-
-       local_irq_restore(flags);
-}
-
 static void __perf_mux_hrtimer_init(struct perf_cpu_context *cpuctx, int cpu)
 {
        struct hrtimer *timer = &cpuctx->hrtimer;