X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Finterface_funcs.h;h=ab808dfa5450dfbad83a1914bde4482e51d5b496;hb=75152289284aaf1116d62c6cdef5a3b0c793fa15;hp=b84d151c86d4b789e53fd34de59036c649af271b;hpb=553a41190963099631a73fb0a77b07b871d65e70;p=vpp.git

diff --git a/src/vnet/interface_funcs.h b/src/vnet/interface_funcs.h
index b84d151c86d..ab808dfa545 100644
--- a/src/vnet/interface_funcs.h
+++ b/src/vnet/interface_funcs.h
@@ -52,6 +52,14 @@ vnet_get_sw_interface (vnet_main_t * vnm, u32 sw_if_index)
   return pool_elt_at_index (vnm->interface_main.sw_interfaces, sw_if_index);
 }
 
+always_inline vnet_sw_interface_t *
+vnet_get_sw_interface_safe (vnet_main_t * vnm, u32 sw_if_index)
+{
+  if (!pool_is_free_index (vnm->interface_main.sw_interfaces, sw_if_index))
+    return pool_elt_at_index (vnm->interface_main.sw_interfaces, sw_if_index);
+  return (NULL);
+}
+
 always_inline vnet_sw_interface_t *
 vnet_get_hw_sw_interface (vnet_main_t * vnm, u32 hw_if_index)
 {