From 8a75717dc691abe79e9113d870ec6bb54629ccdf Mon Sep 17 00:00:00 2001
From: goldsimon <goldsimon>
Date: Sat, 6 Mar 2010 12:15:47 +0000
Subject: [PATCH] Check that LWIP_NETIF_TX_SINGLE_PBUF works (in debug mode
 only)

---
 ports/win32/pktif.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ports/win32/pktif.c b/ports/win32/pktif.c
index bfabead..ac5dbec 100644
--- a/ports/win32/pktif.c
+++ b/ports/win32/pktif.c
@@ -175,6 +175,10 @@ low_level_output(struct netif *netif, struct pbuf *p)
   unsigned char *ptr;
   struct eth_hdr *ethhdr;
 
+#if defined(LWIP_DEBUG) && LWIP_NETIF_TX_SINGLE_PBUF
+  LWIP_ASSERT("p->next == NULL && p->len == p->tot_len", p->next == NULL && p->len == p->tot_len);
+#endif
+
   /* initiate transfer(); */
   if (p->tot_len >= sizeof(buffer)) {
     LINK_STATS_INC(link.lenerr);