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-rw-r--r--include/asm-i386/cpu.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-i386/cpu.h b/include/asm-i386/cpu.h
index b1bc7b1b64b0..9d914e1e4aad 100644
--- a/include/asm-i386/cpu.h
+++ b/include/asm-i386/cpu.h
@@ -13,6 +13,9 @@ struct i386_cpu {
extern int arch_register_cpu(int num);
#ifdef CONFIG_HOTPLUG_CPU
extern void arch_unregister_cpu(int);
+extern int enable_cpu_hotplug;
+#else
+#define enable_cpu_hotplug 0
#endif
DECLARE_PER_CPU(int, cpu_state);