diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 4a21b0f..2a36f7f 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -989,8 +989,8 @@
 	     idx < 512;					\
 	     idx = find_next_bit(bitmap, 512, idx+1))
 
-int mmu_pages_add(struct kvm_mmu_pages *pvec, struct kvm_mmu_page *sp,
-		   int idx)
+static int mmu_pages_add(struct kvm_mmu_pages *pvec, struct kvm_mmu_page *sp,
+			 int idx)
 {
 	int i;
 
@@ -1121,8 +1121,9 @@
 			i < pvec.nr && ({ sp = pvec.page[i].sp; 1;});	\
 			i = mmu_pages_next(&pvec, &parents, i))
 
-int mmu_pages_next(struct kvm_mmu_pages *pvec, struct mmu_page_path *parents,
-		   int i)
+static int mmu_pages_next(struct kvm_mmu_pages *pvec,
+			  struct mmu_page_path *parents,
+			  int i)
 {
 	int n;
 
@@ -1141,7 +1142,7 @@
 	return n;
 }
 
-void mmu_pages_clear_parents(struct mmu_page_path *parents)
+static void mmu_pages_clear_parents(struct mmu_page_path *parents)
 {
 	struct kvm_mmu_page *sp;
 	unsigned int level = 0;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e4db5be..8ca100a 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2043,8 +2043,8 @@
 	return dev;
 }
 
-int kvm_read_guest_virt(gva_t addr, void *val, unsigned int bytes,
-			struct kvm_vcpu *vcpu)
+static int kvm_read_guest_virt(gva_t addr, void *val, unsigned int bytes,
+			       struct kvm_vcpu *vcpu)
 {
 	void *data = val;
 	int r = X86EMUL_CONTINUE;
@@ -2073,8 +2073,8 @@
 	return r;
 }
 
-int kvm_write_guest_virt(gva_t addr, void *val, unsigned int bytes,
-			 struct kvm_vcpu *vcpu)
+static int kvm_write_guest_virt(gva_t addr, void *val, unsigned int bytes,
+				struct kvm_vcpu *vcpu)
 {
 	void *data = val;
 	int r = X86EMUL_CONTINUE;
diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c
index a70d805..864ac54 100644
--- a/virt/kvm/irq_comm.c
+++ b/virt/kvm/irq_comm.c
@@ -233,8 +233,8 @@
 	__kvm_free_irq_routing(&kvm->irq_routing);
 }
 
-int setup_routing_entry(struct kvm_kernel_irq_routing_entry *e,
-			const struct kvm_irq_routing_entry *ue)
+static int setup_routing_entry(struct kvm_kernel_irq_routing_entry *e,
+			       const struct kvm_irq_routing_entry *ue)
 {
 	int r = -EINVAL;
 	int delta;