[PATCH] x86/kvm: Fix -Wmissing-prototypes warnings

[Yi Wang]

We get two warning when build kernel with W=1:
arch/x86/kernel/kvm.c:872:6: warning: no previous prototype for âarch_haltpoll_enableâ [-Wmissing-prototypes]
arch/x86/kernel/kvm.c:885:6: warning: no previous prototype for âarch_haltpoll_disableâ [-Wmissing-prototypes]

Including the missing head file can fix this.

Signed-off-by: Yi Wang <wang.yi59@xxxxxxxxxx>
---
 arch/x86/kernel/kvm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index e820568..32ef1ee 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -33,6 +33,7 @@
 #include <asm/apicdef.h>
 #include <asm/hypervisor.h>
 #include <asm/tlb.h>
+#include <asm/cpuidle_haltpoll.h>
 
 static int kvmapf = 1;
 
-- 
1.8.3.1