{
        struct cpufreq_freqs freqs;
        u32 lo, hi;
-       u8 current_multiplier, current_voltage;
        int err = 0;
        int i;
 
        rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
        freqs.new = centaur->fsb * ((lo >> 8) & 0xff);
 
+#ifdef DEBUG
+       {
+       u8 current_multiplier, current_voltage;
+
        /* Print voltage and multiplier */
        rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
        current_voltage = lo & 0xff;
        current_multiplier = (lo >> 8) & 0xff;
        printk(KERN_INFO "eps: Current multiplier = %d\n",
                current_multiplier);
-
+       }
+#endif
        cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
        return err;
 }