flowprobe: fix L3 header offset calculation for tx flows

[vpp.git] / src / plugins / flowprobe / node.c

diff --git a/src/plugins/flowprobe/node.c b/src/plugins/flowprobe/node.c
index 22bb6ce..7645f5d 100644 (file)
--- a/src/plugins/flowprobe/node.c
+++ b/src/plugins/flowprobe/node.c
@@ -388,7 +388,7 @@ add_to_flow_record_state (vlib_main_t *vm, vlib_node_runtime_t *node,
                                   vlib_buffer_get_current (b) :
                                   ethernet_buffer_get_header (b);
   u16 ethertype = clib_net_to_host_u16 (eth->type);
-  u16 l3_hdr_offset = (u8 *) eth - b->data + sizeof (ethernet_header_t);
+  i16 l3_hdr_offset = (u8 *) eth - b->data + sizeof (ethernet_header_t);
   /* *INDENT-OFF* */
   flowprobe_key_t k = {};
   /* *INDENT-ON* */