X-Git-Url: https://gerrit.fd.io/r/gitweb?p=vpp.git;a=blobdiff_plain;f=src%2Fvnet%2Ffeature%2Ffeature.c;h=47c8c62334fad8ec3ea82fcade0577696908a676;hp=2cdbcff88c89d96e77584088b431929e673b4b76;hb=8feeaff56;hpb=2dd192b76774beb9c7960527fb3f397a2848f679

diff --git a/src/vnet/feature/feature.c b/src/vnet/feature/feature.c
index 2cdbcff88c8..47c8c62334f 100644
--- a/src/vnet/feature/feature.c
+++ b/src/vnet/feature/feature.c
@@ -115,6 +115,7 @@ vnet_feature_init (vlib_main_t * vm)
       clib_error_t *error;
       vnet_feature_config_main_t *cm;
       vnet_config_main_t *vcm;
+      char **features_in_order, *last_feature;
 
       arc_index = areg->feature_arc_index;
       cm = &fm->feature_config_mains[arc_index];
@@ -129,6 +130,19 @@ vnet_feature_init (vlib_main_t * vm)
 	  os_exit (1);
 	}
 
+      features_in_order = fm->feature_nodes[arc_index];
+
+      /* If specified, verify that the last node in the arc is actually last */
+      if (areg->last_in_arc && vec_len (features_in_order) > 0)
+	{
+	  last_feature = features_in_order[vec_len (features_in_order) - 1];
+	  if (strncmp (areg->last_in_arc, last_feature,
+		       strlen (areg->last_in_arc)))
+	    clib_warning
+	      ("WARNING: %s arc: last node is %s, but expected %s!",
+	       areg->arc_name, last_feature, areg->last_in_arc);
+	}
+
       fm->next_feature_by_name[arc_index] =
 	hash_create_string (0, sizeof (uword));
       freg = fm->next_feature_by_arc[arc_index];