if (is_set)
{
vnet_sw_interface_t *sw_if =
- vnet_get_sw_interface_safe (&vnet_main, sw_if_index);
+ vnet_get_sw_interface_or_null (&vnet_main, sw_if_index);
vnet_hw_interface_t *hw_if =
vnet_get_hw_interface (&vnet_main, sw_if->hw_if_index);
u8 *s = format (NULL, "UDP echo source is: %v\n", hw_if->name);