#include <asm/uaccess.h>
 #include <asm/system.h>
 
-static struct class_simple *cpuid_class;
+static struct class *cpuid_class;
 
 #ifdef CONFIG_SMP
 
        .open = cpuid_open,
 };
 
-static int cpuid_class_simple_device_add(int i) 
+static int cpuid_class_device_create(int i)
 {
        int err = 0;
        struct class_device *class_err;
 
-       class_err = class_simple_device_add(cpuid_class, MKDEV(CPUID_MAJOR, i), NULL, "cpu%d",i);
+       class_err = class_device_create(cpuid_class, MKDEV(CPUID_MAJOR, i), NULL, "cpu%d",i);
        if (IS_ERR(class_err))
                err = PTR_ERR(class_err);
        return err;
 
        switch (action) {
        case CPU_ONLINE:
-               cpuid_class_simple_device_add(cpu);
+               cpuid_class_device_create(cpu);
                break;
        case CPU_DEAD:
-               class_simple_device_remove(MKDEV(CPUID_MAJOR, cpu));
+               class_device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu));
                break;
        }
        return NOTIFY_OK;
                err = -EBUSY;
                goto out;
        }
-       cpuid_class = class_simple_create(THIS_MODULE, "cpuid");
+       cpuid_class = class_create(THIS_MODULE, "cpuid");
        if (IS_ERR(cpuid_class)) {
                err = PTR_ERR(cpuid_class);
                goto out_chrdev;
        }
        for_each_online_cpu(i) {
-               err = cpuid_class_simple_device_add(i);
+               err = cpuid_class_device_create(i);
                if (err != 0) 
                        goto out_class;
        }
 out_class:
        i = 0;
        for_each_online_cpu(i) {
-               class_simple_device_remove(MKDEV(CPUID_MAJOR, i));
+               class_device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, i));
        }
-       class_simple_destroy(cpuid_class);
+       class_destroy(cpuid_class);
 out_chrdev:
        unregister_chrdev(CPUID_MAJOR, "cpu/cpuid");    
 out:
        int cpu = 0;
 
        for_each_online_cpu(cpu)
-               class_simple_device_remove(MKDEV(CPUID_MAJOR, cpu));
-       class_simple_destroy(cpuid_class);
+               class_device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu));
+       class_destroy(cpuid_class);
        unregister_chrdev(CPUID_MAJOR, "cpu/cpuid");
        unregister_cpu_notifier(&cpuid_class_cpu_notifier);
 }
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
 
-static struct class_simple *msr_class;
+static struct class *msr_class;
 
 /* Note: "err" is handled in a funny way below.  Otherwise one version
    of gcc or another breaks. */
        .open = msr_open,
 };
 
-static int msr_class_simple_device_add(int i)
+static int msr_class_device_create(int i)
 {
        int err = 0;
        struct class_device *class_err;
 
-       class_err = class_simple_device_add(msr_class, MKDEV(MSR_MAJOR, i), NULL, "msr%d",i);
+       class_err = class_device_create(msr_class, MKDEV(MSR_MAJOR, i), NULL, "msr%d",i);
        if (IS_ERR(class_err)) 
                err = PTR_ERR(class_err);
        return err;
 
        switch (action) {
        case CPU_ONLINE:
-               msr_class_simple_device_add(cpu);
+               msr_class_device_create(cpu);
                break;
        case CPU_DEAD:
-               class_simple_device_remove(MKDEV(MSR_MAJOR, cpu));      
+               class_device_destroy(msr_class, MKDEV(MSR_MAJOR, cpu));
                break;
        }
        return NOTIFY_OK;
                err = -EBUSY;
                goto out;
        }
-       msr_class = class_simple_create(THIS_MODULE, "msr");
+       msr_class = class_create(THIS_MODULE, "msr");
        if (IS_ERR(msr_class)) {
                err = PTR_ERR(msr_class);
                goto out_chrdev;
        }
        for_each_online_cpu(i) {
-               err = msr_class_simple_device_add(i);
+               err = msr_class_device_create(i);
                if (err != 0)
                        goto out_class;
        }
 out_class:
        i = 0;
        for_each_online_cpu(i)
-               class_simple_device_remove(MKDEV(MSR_MAJOR, i));
-       class_simple_destroy(msr_class);
+               class_device_destroy(msr_class, MKDEV(MSR_MAJOR, i));
+       class_destroy(msr_class);
 out_chrdev:
        unregister_chrdev(MSR_MAJOR, "cpu/msr");
 out:
 {
        int cpu = 0;
        for_each_online_cpu(cpu)
-               class_simple_device_remove(MKDEV(MSR_MAJOR, cpu));
-       class_simple_destroy(msr_class);
+               class_device_destroy(msr_class, MKDEV(MSR_MAJOR, cpu));
+       class_destroy(msr_class);
        unregister_chrdev(MSR_MAJOR, "cpu/msr");
        unregister_cpu_notifier(&msr_class_cpu_notifier);
 }