void **p = note_tree_search(t, &tree, &n, key_sha1);
        if (GET_PTR_TYPE(*p) == PTR_TYPE_NOTE) {
                struct leaf_node *l = (struct leaf_node *) CLR_PTR_TYPE(*p);
-               if (!hashcmp(key_sha1, l->key_oid.hash))
+               if (hasheq(key_sha1, l->key_oid.hash))
                        return l;
        }
        return NULL;
        if (GET_PTR_TYPE(*p) != PTR_TYPE_NOTE)
                return; /* type mismatch, nothing to remove */
        l = (struct leaf_node *) CLR_PTR_TYPE(*p);
-       if (oidcmp(&l->key_oid, &entry->key_oid))
+       if (!oideq(&l->key_oid, &entry->key_oid))
                return; /* key mismatch, nothing to remove */
 
        /* we have found a matching entry */
        case PTR_TYPE_NOTE:
                switch (type) {
                case PTR_TYPE_NOTE:
-                       if (!oidcmp(&l->key_oid, &entry->key_oid)) {
+                       if (oideq(&l->key_oid, &entry->key_oid)) {
                                /* skip concatenation if l == entry */
-                               if (!oidcmp(&l->val_oid, &entry->val_oid))
+                               if (oideq(&l->val_oid, &entry->val_oid))
                                        return 0;
 
                                ret = combine_notes(&l->val_oid,