vlib: fix trace number accounting
When using classifier to filter traces, not all packets will be traced.
In that case, we should only count traced packets.
Type: fix
Change-Id: I87d1e217b580ebff8c6ade7860eb43950420ae78
Signed-off-by: Benoît Ganne <bganne@cisco.com>
diff --git a/src/vnet/devices/virtio/node.c b/src/vnet/devices/virtio/node.c
index 94bf097..91e788e 100644
--- a/src/vnet/devices/virtio/node.c
+++ b/src/vnet/devices/virtio/node.c
@@ -388,11 +388,10 @@
/* trace */
VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0);
- if (PREDICT_FALSE (n_trace > 0))
+ if (PREDICT_FALSE (n_trace > 0 && vlib_trace_buffer (vm, node, next0, b0, /* follow_chain */
+ 1)))
{
virtio_input_trace_t *tr;
- vlib_trace_buffer (vm, node, next0, b0,
- /* follow_chain */ 1);
vlib_set_trace_count (vm, node, --n_trace);
tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
tr->next_index = next0;