Driver core: convert msr code to use struct device

[linux-2.6-omap-h63xx.git] / arch / i386 / kernel / msr.c

diff --git a/arch/i386/kernel/msr.c b/arch/i386/kernel/msr.c
index 1d0a55e687602ff49be8aed13771e76a1c43c3d2..a773f776c9ea3bef1627644e367f224f62105921 100644 (file)
--- a/arch/i386/kernel/msr.c
+++ b/arch/i386/kernel/msr.c
@@ -24,7 +24,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/config.h>
 
 #include <linux/types.h>
 #include <linux/errno.h>
@@ -240,36 +239,39 @@ static struct file_operations msr_fops = {
        .open = msr_open,
 };
 
-static int msr_class_device_create(int i)
+static int msr_device_create(int i)
 {
        int err = 0;
-       struct class_device *class_err;
+       struct device *dev;
 
-       class_err = class_device_create(msr_class, NULL, MKDEV(MSR_MAJOR, i), NULL, "msr%d",i);
-       if (IS_ERR(class_err)) 
-               err = PTR_ERR(class_err);
+       dev = device_create(msr_class, NULL, MKDEV(MSR_MAJOR, i), "msr%d",i);
+       if (IS_ERR(dev))
+               err = PTR_ERR(dev);
        return err;
 }
 
-static int __devinit msr_class_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
+#ifdef CONFIG_HOTPLUG_CPU
+static int msr_class_cpu_callback(struct notifier_block *nfb,
+                               unsigned long action, void *hcpu)
 {
        unsigned int cpu = (unsigned long)hcpu;
 
        switch (action) {
        case CPU_ONLINE:
-               msr_class_device_create(cpu);
+               msr_device_create(cpu);
                break;
        case CPU_DEAD:
-               class_device_destroy(msr_class, MKDEV(MSR_MAJOR, cpu));
+               device_destroy(msr_class, MKDEV(MSR_MAJOR, cpu));
                break;
        }
        return NOTIFY_OK;
 }
 
-static struct notifier_block msr_class_cpu_notifier =
+static struct notifier_block __cpuinitdata msr_class_cpu_notifier =
 {
        .notifier_call = msr_class_cpu_callback,
 };
+#endif
 
 static int __init msr_init(void)
 {
@@ -288,11 +290,11 @@ static int __init msr_init(void)
                goto out_chrdev;
        }
        for_each_online_cpu(i) {
-               err = msr_class_device_create(i);
+               err = msr_device_create(i);
                if (err != 0)
                        goto out_class;
        }
-       register_cpu_notifier(&msr_class_cpu_notifier);
+       register_hotcpu_notifier(&msr_class_cpu_notifier);
 
        err = 0;
        goto out;
@@ -300,7 +302,7 @@ static int __init msr_init(void)
 out_class:
        i = 0;
        for_each_online_cpu(i)
-               class_device_destroy(msr_class, MKDEV(MSR_MAJOR, i));
+               device_destroy(msr_class, MKDEV(MSR_MAJOR, i));
        class_destroy(msr_class);
 out_chrdev:
        unregister_chrdev(MSR_MAJOR, "cpu/msr");
@@ -312,10 +314,10 @@ static void __exit msr_exit(void)
 {
        int cpu = 0;
        for_each_online_cpu(cpu)
-               class_device_destroy(msr_class, MKDEV(MSR_MAJOR, cpu));
+               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);
+       unregister_hotcpu_notifier(&msr_class_cpu_notifier);
 }
 
 module_init(msr_init);