struct kvm_rmap_desc *more;
 };
 
-struct kvm_shadow_walk {
-       int (*entry)(struct kvm_shadow_walk *walk, struct kvm_vcpu *vcpu,
-                    u64 addr, u64 *spte, int level);
-};
-
 struct kvm_shadow_walk_iterator {
        u64 addr;
        hpa_t shadow_addr;
        --iterator->level;
 }
 
-static int walk_shadow(struct kvm_shadow_walk *walker,
-                      struct kvm_vcpu *vcpu, u64 addr)
-{
-       struct kvm_shadow_walk_iterator iterator;
-       int r;
-
-       for_each_shadow_entry(vcpu, addr, iterator) {
-               r = walker->entry(walker, vcpu, addr,
-                                 iterator.sptep, iterator.level);
-               if (r)
-                       return r;
-       }
-       return 0;
-}
-
 static void kvm_mmu_page_unlink_children(struct kvm *kvm,
                                         struct kvm_mmu_page *sp)
 {