X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=src%2Fvnet%2Finterface_output.c;h=65bc4a4b7ec126be26c7e71ccd6efb642d130796;hb=9a3973e3a36bfd4dd8dbffe130a92649fc1b73d3;hp=52c07accc4ac39bcecbabc5d6f2eea882ca0641d;hpb=f6b02e0d0bfd7e0f1d79e8ee426f48ca37ae5ff3;p=vpp.git

diff --git a/src/vnet/interface_output.c b/src/vnet/interface_output.c
index 52c07accc4a..65bc4a4b7ec 100644
--- a/src/vnet/interface_output.c
+++ b/src/vnet/interface_output.c
@@ -800,19 +800,21 @@ interface_drop_punt (vlib_main_t * vm,
 	  node->flags |= VLIB_NODE_FLAG_TRACE;
 	  while (n_trace && n_left)
 	    {
-	      vlib_trace_buffer (vm, node, 0 /* next_index */ ,
-				 b[0], 0 /* follow chain */ );
-	      /*
-	       * Here we have a wireshark dissector problem.
-	       * Packets may be well-formed, or not. We
-	       * must not blow chunks in any case.
-	       *
-	       * Try to produce trace records which will help
-	       * folks understand what's going on.
-	       */
-	      drop_catchup_trace (vm, node, b[0]);
-
-	      n_trace--;
+	      if (PREDICT_TRUE
+		  (vlib_trace_buffer (vm, node, 0 /* next_index */ , b[0],
+				      0 /* follow chain */ )))
+		{
+		  /*
+		   * Here we have a wireshark dissector problem.
+		   * Packets may be well-formed, or not. We
+		   * must not blow chunks in any case.
+		   *
+		   * Try to produce trace records which will help
+		   * folks understand what's going on.
+		   */
+		  drop_catchup_trace (vm, node, b[0]);
+		  n_trace--;
+		}
 	      n_left--;
 	      b++;
 	    }