Index: head/sys/netinet/tcp_lro.h
===================================================================
--- head/sys/netinet/tcp_lro.h
+++ head/sys/netinet/tcp_lro.h
@@ -110,6 +110,7 @@
 int tcp_lro_rx(struct lro_ctrl *, struct mbuf *, uint32_t);
 void tcp_lro_queue_mbuf(struct lro_ctrl *, struct mbuf *);
 
+#define	TCP_LRO_NO_ENTRIES	-2
 #define	TCP_LRO_CANNOT		-1
 #define	TCP_LRO_NOT_SUPPORTED	1
 
Index: head/sys/netinet/tcp_lro.c
===================================================================
--- head/sys/netinet/tcp_lro.c
+++ head/sys/netinet/tcp_lro.c
@@ -690,7 +690,7 @@
 
 	/* Try to find an empty slot. */
 	if (SLIST_EMPTY(&lc->lro_free))
-		return (TCP_LRO_CANNOT);
+		return (TCP_LRO_NO_ENTRIES);
 
 	/* Start a new segment chain. */
 	le = SLIST_FIRST(&lc->lro_free);