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