* VLIB_BUFFER_NEXT_PRESENT flag is set. */
u32 next_buffer;
- /** Used by feature subgraph arcs to visit enabled feature nodes */
- u32 current_config_index;
+ /** The following fields can be in a union because once a packet enters
+ * the punt path, it is no longer on a feature arc */
+ union
+ {
+ /** Used by feature subgraph arcs to visit enabled feature nodes */
+ u32 current_config_index;
+ /* the reason the packet once punted */
+ u32 punt_reason;
+ };
/** Opaque data used by sub-graphs for their own purposes. */
u32 opaque[10];