--- zzzz-none-000/linux-3.10.107/arch/x86/kernel/cpuid.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/x86/kernel/cpuid.c	2021-02-04 17:41:59.000000000 +0000
@@ -137,13 +137,13 @@
 	.open = cpuid_open,
 };
 
-static __cpuinit int cpuid_device_create(int cpu)
+static int cpuid_device_create(int cpu)
 {
 	struct device *dev;
 
 	dev = device_create(cpuid_class, NULL, MKDEV(CPUID_MAJOR, cpu), NULL,
 			    "cpu%d", cpu);
-	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+	return PTR_ERR_OR_ZERO(dev);
 }
 
 static void cpuid_device_destroy(int cpu)
@@ -151,9 +151,8 @@
 	device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu));
 }
 
-static int __cpuinit cpuid_class_cpu_callback(struct notifier_block *nfb,
-					      unsigned long action,
-					      void *hcpu)
+static int cpuid_class_cpu_callback(struct notifier_block *nfb,
+				    unsigned long action, void *hcpu)
 {
 	unsigned int cpu = (unsigned long)hcpu;
 	int err = 0;
@@ -171,7 +170,7 @@
 	return notifier_from_errno(err);
 }
 
-static struct notifier_block __refdata cpuid_class_cpu_notifier =
+static struct notifier_block cpuid_class_cpu_notifier =
 {
 	.notifier_call = cpuid_class_cpu_callback,
 };
@@ -199,14 +198,15 @@
 		goto out_chrdev;
 	}
 	cpuid_class->devnode = cpuid_devnode;
-	get_online_cpus();
+
+	cpu_notifier_register_begin();
 	for_each_online_cpu(i) {
 		err = cpuid_device_create(i);
 		if (err != 0)
 			goto out_class;
 	}
-	register_hotcpu_notifier(&cpuid_class_cpu_notifier);
-	put_online_cpus();
+	__register_hotcpu_notifier(&cpuid_class_cpu_notifier);
+	cpu_notifier_register_done();
 
 	err = 0;
 	goto out;
@@ -216,7 +216,7 @@
 	for_each_online_cpu(i) {
 		cpuid_device_destroy(i);
 	}
-	put_online_cpus();
+	cpu_notifier_register_done();
 	class_destroy(cpuid_class);
 out_chrdev:
 	__unregister_chrdev(CPUID_MAJOR, 0, NR_CPUS, "cpu/cpuid");
@@ -228,13 +228,13 @@
 {
 	int cpu = 0;
 
-	get_online_cpus();
+	cpu_notifier_register_begin();
 	for_each_online_cpu(cpu)
 		cpuid_device_destroy(cpu);
 	class_destroy(cpuid_class);
 	__unregister_chrdev(CPUID_MAJOR, 0, NR_CPUS, "cpu/cpuid");
-	unregister_hotcpu_notifier(&cpuid_class_cpu_notifier);
-	put_online_cpus();
+	__unregister_hotcpu_notifier(&cpuid_class_cpu_notifier);
+	cpu_notifier_register_done();
 }
 
 module_init(cpuid_init);