x86: little clean up of intel.c/intel_64.c

Signed-off-by: NYinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/x86/kernel/cpu/intel.c

@@ -76,7 +76,7 @@ static void __cpuinit Intel_errata_workarounds(struct cpuinfo_x86 *c)
 /*
  * find out the number of processor cores on the die
  */
-static int __cpuinit num_cpu_cores(struct cpuinfo_x86 *c)
+static int __cpuinit intel_num_cpu_cores(struct cpuinfo_x86 *c)
 {
 	unsigned int eax, ebx, ecx, edx;
 
@@ -183,7 +183,7 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 		 * let's use the legacy cpuid vector 0x1 and 0x4 for topology
 		 * detection.
 		 */
-		c->x86_max_cores = num_cpu_cores(c);
+		c->x86_max_cores = intel_num_cpu_cores(c);
 		detect_ht(c);
 	}
 
@@ -210,9 +210,8 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 
 	if (cpu_has_xmm2)
 		set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
-	if (c->x86 == 15) {
+	if (c->x86 == 15)
 		set_cpu_cap(c, X86_FEATURE_P4);
-	}
 	if (c->x86 == 6)
 		set_cpu_cap(c, X86_FEATURE_P3);
 	if (cpu_has_ds) {

arch/x86/kernel/cpu/intel_64.c

@@ -71,17 +71,15 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 			set_cpu_cap(c, X86_FEATURE_BTS);
 		if (!(l1 & (1<<12)))
 			set_cpu_cap(c, X86_FEATURE_PEBS);
-	}
-
-
-	if (cpu_has_bts)
 		ds_init_intel(c);
+	}
 
 	if (c->x86 == 15)
 		c->x86_cache_alignment = c->x86_clflush_size * 2;
 	if (c->x86 == 6)
 		set_cpu_cap(c, X86_FEATURE_REP_GOOD);
-	set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
+	if (cpu_has_xmm2)
+		set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
 
 	detect_extended_topology(c);
 	if (!cpu_has(c, X86_FEATURE_XTOPOLOGY))