[PATCH v2] x86/cpu: fix prototype warning

[Yi Wang <wang.yi59@zte.com.cn>]

This patch fix the following build warnings which because of missing
include file:

arch/x86/kernel/cpu/cacheinfo.c:647:6: warning: no previous prototype for ‘cacheinfo_amd_init_llc_id’ [-Wmissing-prototypes]
arch/x86/kernel/cpu/cacheinfo.c:686:6: warning: no previous prototype for ‘cacheinfo_hygon_init_llc_id’ [-Wmissing-prototypes]
arch/x86/kernel/cpu/scattered.c:37:6: warning: no previous prototype for ‘init_scattered_cpuid_features’ [-Wmissing-prototypes]
arch/x86/kernel/cpu/scattered.c:60:5: warning: no previous prototype for ‘get_scattered_cpuid_leaf’ [-Wmissing-prototypes]
arch/x86/kernel/cpu/topology.c:25:5: warning: no previous prototype for ‘detect_extended_topology_early’ [-Wmissing-prototypes]
arch/x86/kernel/cpu/topology.c:57:5: warning: no previous prototype for ‘detect_extended_topology’ [-Wmissing-prototypes]

Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
---
v2: merge the series into a single patch

---
 arch/x86/kernel/cpu/cacheinfo.c | 1 +
 arch/x86/kernel/cpu/scattered.c | 2 ++
 arch/x86/kernel/cpu/topology.c  | 2 ++
 3 files changed, 5 insertions(+)

diff --git a/arch/x86/kernel/cpu/cacheinfo.c b/arch/x86/kernel/cpu/cacheinfo.c
index dc1b934..5bafd93 100644
--- a/arch/x86/kernel/cpu/cacheinfo.c
+++ b/arch/x86/kernel/cpu/cacheinfo.c
@@ -19,6 +19,7 @@
 #include <asm/cpufeature.h>
 #include <asm/amd_nb.h>
 #include <asm/smp.h>
+#include <asm/cacheinfo.h>
 
 #include "cpu.h"
 
diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c
index 772c219..5b6866f 100644
--- a/arch/x86/kernel/cpu/scattered.c
+++ b/arch/x86/kernel/cpu/scattered.c
@@ -9,6 +9,8 @@
 
 #include <asm/apic.h>
 
+#include "cpu.h"
+
 struct cpuid_bit {
 	u16 feature;
 	u8 reg;
diff --git a/arch/x86/kernel/cpu/topology.c b/arch/x86/kernel/cpu/topology.c
index 71ca064..8f6c784 100644
--- a/arch/x86/kernel/cpu/topology.c
+++ b/arch/x86/kernel/cpu/topology.c
@@ -10,6 +10,8 @@
 #include <asm/pat.h>
 #include <asm/processor.h>
 
+#include "cpu.h"
+
 /* leaf 0xb SMT level */
 #define SMT_LEVEL	0
 
-- 
1.8.3.1