Re: [PATCH] x86: move prefill_possible_map calling early

[Ingo Molnar]

FYI, this one needed the small fixlet below. (prefill_possible_map() is 
dependent on both CONFIG_SMP and CONFIG_HOTPLUG_CPU - not just 
CONFIG_SMP)

	Ingo

-------------->
commit bb42b7bdee9decad536c1e747e2ce2f3daebb76f
Author: Ingo Molnar <mingo@xxxxxxx>
Date:   Thu Jul 3 15:57:47 2008 +0200

    x86: move prefill_possible_map calling early, fix
    
    fix:
    
    arch/x86/kernel/built-in.o: In function `setup_arch':
    : undefined reference to `prefill_possible_map'
    
    Signed-off-by: Ingo Molnar <mingo@xxxxxxx>

diff --git a/include/asm-x86/smp.h b/include/asm-x86/smp.h
index bf6b5ee..c2784b3 100644
--- a/include/asm-x86/smp.h
+++ b/include/asm-x86/smp.h
@@ -114,8 +114,6 @@ void native_send_call_func_single_ipi(int cpu);
 extern int __cpu_disable(void);
 extern void __cpu_die(unsigned int cpu);
 
-extern void prefill_possible_map(void);
-
 void smp_store_cpu_info(int id);
 #define cpu_physical_id(cpu)	per_cpu(x86_cpu_to_apicid, cpu)
 
@@ -124,11 +122,15 @@ static inline int num_booting_cpus(void)
 {
 	return cpus_weight(cpu_callout_map);
 }
+#endif /* CONFIG_SMP */
+
+#if defined(CONFIG_SMP) && defined(CONFIG_HOTPLUG_CPU)
+extern void prefill_possible_map(void);
 #else
 static inline void prefill_possible_map(void)
 {
 }
-#endif /* CONFIG_SMP */
+#endif
 
 extern unsigned disabled_cpus __cpuinitdata;
 
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