x86: make detect_ht depend on CONFIG_X86_HT

64-bit has X86_HT set too, so use that instead of SMP.

This also removes a include/asm-x86/processor.h ifdef.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/cpu/common.c

@@ -263,9 +263,9 @@ void __cpuinit display_cacheinfo(struct cpuinfo_x86 *c)
 			l2size, ecx & 0xFF);
 }
 
-#ifdef CONFIG_X86_HT
 void __cpuinit detect_ht(struct cpuinfo_x86 *c)
 {
+#ifdef CONFIG_X86_HT
 	u32 eax, ebx, ecx, edx;
 	int index_msb, core_bits;
 
@@ -311,8 +311,8 @@ void __cpuinit detect_ht(struct cpuinfo_x86 *c)
 		printk(KERN_INFO  "CPU: Processor Core ID: %d\n",
 		       c->cpu_core_id);
 	}
-}
 #endif
+}
 
 static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c)
 {

arch/x86/kernel/cpu/common_64.c

@@ -141,7 +141,7 @@ void __cpuinit display_cacheinfo(struct cpuinfo_x86 *c)
 
 void __cpuinit detect_ht(struct cpuinfo_x86 *c)
 {
-#ifdef CONFIG_SMP
+#ifdef CONFIG_X86_HT
 	u32 eax, ebx, ecx, edx;
 	int index_msb, core_bits;
 

include/asm-x86/processor.h

@@ -166,11 +166,7 @@ extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c);
 extern unsigned short num_cache_leaves;
 
 extern void detect_extended_topology(struct cpuinfo_x86 *c);
-#if defined(CONFIG_X86_HT) || defined(CONFIG_X86_64)
 extern void detect_ht(struct cpuinfo_x86 *c);
-#else
-static inline void detect_ht(struct cpuinfo_x86 *c) {}
-#endif
 
 static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
 				unsigned int *ecx, unsigned int *edx)