vppinfra: make _vec_len() read-only

[vpp.git] / src / plugins / pppoe / pppoe.c

diff --git a/src/plugins/pppoe/pppoe.c b/src/plugins/pppoe/pppoe.c
index 182f93b..2bdbd3a 100644 (file)
--- a/src/plugins/pppoe/pppoe.c
+++ b/src/plugins/pppoe/pppoe.c
@@ -374,7 +374,7 @@ int vnet_pppoe_add_del_session
          vnet_interface_main_t *im = &vnm->interface_main;
          hw_if_index = pem->free_pppoe_session_hw_if_indices
            [vec_len (pem->free_pppoe_session_hw_if_indices) - 1];
-         _vec_len (pem->free_pppoe_session_hw_if_indices) -= 1;
+         vec_dec_len (pem->free_pppoe_session_hw_if_indices, 1);
 
          hi = vnet_get_hw_interface (vnm, hw_if_index);
          hi->dev_instance = t - pem->sessions;