From 653bfa0ba3a815e19cd862d448f555877b90c1b2 Mon Sep 17 00:00:00 2001
From: Rui Paulo <rpaulo@FreeBSD.org>
Date: Wed, 13 Oct 2010 17:16:08 +0000
Subject: [PATCH] Ignore the return value of ADDCARRY().

---
 sys/contrib/pf/netinet/in4_cksum.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/contrib/pf/netinet/in4_cksum.c b/sys/contrib/pf/netinet/in4_cksum.c
index 24a04d014562..bf25baf97a0a 100644
--- a/sys/contrib/pf/netinet/in4_cksum.c
+++ b/sys/contrib/pf/netinet/in4_cksum.c
@@ -75,7 +75,7 @@
 #include <machine/in_cksum.h>
 
 #define ADDCARRY(x)  (x > 65535 ? x -= 65535 : x)
-#define REDUCE {l_util.l = sum; sum = l_util.s[0] + l_util.s[1]; ADDCARRY(sum);}
+#define REDUCE {l_util.l = sum; sum = l_util.s[0] + l_util.s[1]; (void)ADDCARRY(sum);}
 
 int in4_cksum(struct mbuf *, u_int8_t, int, int);