diff --git a/virt/kvm/dirty_ring.c b/virt/kvm/dirty_ring.c
index 7aafefc50aa72beac3b55e804989dfe454e719c9..88f4683198ea757c1ce43781a08b5b59fac345cf 100644
--- a/virt/kvm/dirty_ring.c
+++ b/virt/kvm/dirty_ring.c
@@ -91,11 +91,6 @@ static inline void kvm_dirty_gfn_set_dirtied(struct kvm_dirty_gfn *gfn)
 	gfn->flags = KVM_DIRTY_GFN_F_DIRTY;
 }
 
-static inline bool kvm_dirty_gfn_invalid(struct kvm_dirty_gfn *gfn)
-{
-	return gfn->flags == 0;
-}
-
 static inline bool kvm_dirty_gfn_harvested(struct kvm_dirty_gfn *gfn)
 {
 	return gfn->flags & KVM_DIRTY_GFN_F_RESET;