X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fplugins%2Favf%2Finput.c;h=4e4f116304d352852ac208627c6a0044718a1c53;hb=9a3973e3a36bfd4dd8dbffe130a92649fc1b73d3;hp=9d677ab96d56f061c0ff098a7371d277380cfdac;hpb=f6b02e0d0bfd7e0f1d79e8ee426f48ca37ae5ff3;p=vpp.git

diff --git a/src/plugins/avf/input.c b/src/plugins/avf/input.c
index 9d677ab96d5..4e4f116304d 100644
--- a/src/plugins/avf/input.c
+++ b/src/plugins/avf/input.c
@@ -383,20 +383,24 @@ no_more_desc:
 
       while (n_trace && n_left)
 	{
-	  vlib_buffer_t *b;
-	  avf_input_trace_t *tr;
-	  b = vlib_get_buffer (vm, bi[0]);
-	  vlib_trace_buffer (vm, node, next_index, b, /* follow_chain */ 0);
-	  tr = vlib_add_trace (vm, node, b, sizeof (*tr));
-	  tr->next_index = next_index;
-	  tr->qid = qid;
-	  tr->hw_if_index = ad->hw_if_index;
-	  tr->qw1s[0] = ptd->qw1s[i];
-	  for (j = 1; j < AVF_RX_MAX_DESC_IN_CHAIN; j++)
-	    tr->qw1s[j] = ptd->tails[i].qw1s[j - 1];
+	  vlib_buffer_t *b = vlib_get_buffer (vm, bi[0]);
+	  if (PREDICT_TRUE
+	      (vlib_trace_buffer
+	       (vm, node, next_index, b, /* follow_chain */ 0)))
+	    {
+	      avf_input_trace_t *tr =
+		vlib_add_trace (vm, node, b, sizeof (*tr));
+	      tr->next_index = next_index;
+	      tr->qid = qid;
+	      tr->hw_if_index = ad->hw_if_index;
+	      tr->qw1s[0] = ptd->qw1s[i];
+	      for (j = 1; j < AVF_RX_MAX_DESC_IN_CHAIN; j++)
+		tr->qw1s[j] = ptd->tails[i].qw1s[j - 1];
+
+	      n_trace--;
+	    }
 
 	  /* next */
-	  n_trace--;
 	  n_left--;
 	  bi++;
 	  i++;