reserve_pmc_hardware
int reserve_pmc_hardware(perf_irq_t new_perf_irq);
EXPORT_SYMBOL_GPL(reserve_pmc_hardware);
reserve_pmc_hardware(perf_event_interrupt))
reserve_pmc_hardware(perf_event_interrupt))
reserve_pmc_hardware();
extern int reserve_pmc_hardware(void);
reserve_pmc_hardware())
if (!reserve_pmc_hardware()) {