Avoid section mismatch involving arch_register_cpu.
Marking arch_register_cpu as __init and removing the export
for non-hotplug-cpu configurations makes the following warning
go away:
Section mismatch in reference from the function
arch_register_cpu() to the function .devinit.text:register_cpu()
The function arch_register_cpu() references
the function __devinit register_cpu().
This is often because arch_register_cpu lacks a __devinit
annotation or the annotation of register_cpu is wrong.
The only external user of arch_register_cpu in the tree is
in drivers/acpi/processor_core.c where it is guarded by
ACPI_HOTPLUG_CPU (which depends on HOTPLUG_CPU).
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
CC: Sam Ravnborg <sam@ravnborg.org>
diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c
index 78cbb65..e6757aa 100644
--- a/arch/x86/kernel/topology.c
+++ b/arch/x86/kernel/topology.c
@@ -57,11 +57,10 @@ void arch_unregister_cpu(int num)
}
EXPORT_SYMBOL(arch_unregister_cpu);
#else
-int arch_register_cpu(int num)
+static int __init arch_register_cpu(int num)
{
return register_cpu(&per_cpu(cpu_devices, num).cpu, num);
}
-EXPORT_SYMBOL(arch_register_cpu);
#endif /*CONFIG_HOTPLUG_CPU*/
static int __init topology_init(void)
diff --git a/include/asm-x86/cpu.h b/include/asm-x86/cpu.h
index 85ece5f..73f2ea8 100644
--- a/include/asm-x86/cpu.h
+++ b/include/asm-x86/cpu.h
@@ -10,8 +10,9 @@
struct x86_cpu {
struct cpu cpu;
};
-extern int arch_register_cpu(int num);
+
#ifdef CONFIG_HOTPLUG_CPU
+extern int arch_register_cpu(int num);
extern void arch_unregister_cpu(int);
#endif
--
