From: OGAWA Hirofumi Date: Tue, 4 Jul 2006 00:32:20 +0000 (-0700) Subject: [PATCH] Fix modular cpuid.ko X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b6a7c79a52939513ef043d6eb9fcf12a056c010e;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git [PATCH] Fix modular cpuid.ko With recent change, if CONFIG_HOTPLUG_CPU is disabled, register_cpu_notifier() is not exported. And it breaked moduler msr/cpuid (msr.c was already fixed). We need to use register_hotcpu_notifier() now in module, instead of register_cpu_notifier(). Signed-off-by: OGAWA Hirofumi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/arch/i386/kernel/cpuid.c b/arch/i386/kernel/cpuid.c index a8d3ecdc3897..fde8bea85cee 100644 --- a/arch/i386/kernel/cpuid.c +++ b/arch/i386/kernel/cpuid.c @@ -167,6 +167,7 @@ static int cpuid_class_device_create(int i) return err; } +#ifdef CONFIG_HOTPLUG_CPU static int cpuid_class_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu) { unsigned int cpu = (unsigned long)hcpu; @@ -186,6 +187,7 @@ static struct notifier_block __cpuinitdata cpuid_class_cpu_notifier = { .notifier_call = cpuid_class_cpu_callback, }; +#endif /* !CONFIG_HOTPLUG_CPU */ static int __init cpuid_init(void) { @@ -208,7 +210,7 @@ static int __init cpuid_init(void) if (err != 0) goto out_class; } - register_cpu_notifier(&cpuid_class_cpu_notifier); + register_hotcpu_notifier(&cpuid_class_cpu_notifier); err = 0; goto out; @@ -233,7 +235,7 @@ static void __exit cpuid_exit(void) 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); + unregister_hotcpu_notifier(&cpuid_class_cpu_notifier); } module_init(cpuid_init);