struct cpu *c = &per_cpu(cpu_devices, cpu);
        struct sys_device *s = &c->sysdev;
 
-#ifndef CONFIG_PPC_ISERIES
-       if (cpu_has_feature(CPU_FTR_SMT))
+       if (!firmware_has_feature(FW_FEATURE_ISERIES) &&
+                       cpu_has_feature(CPU_FTR_SMT))
                sysdev_create_file(s, &attr_smt_snooze_delay);
-#endif
 
        /* PMC stuff */
 
 
        BUG_ON(c->no_control);
 
-#ifndef CONFIG_PPC_ISERIES
-       if (cpu_has_feature(CPU_FTR_SMT))
+       if (!firmware_has_feature(FW_FEATURE_ISERIES) &&
+                       cpu_has_feature(CPU_FTR_SMT))
                sysdev_remove_file(s, &attr_smt_snooze_delay);
-#endif
 
        /* PMC stuff */