commit f6ab028804bdc580fe0915494dbf31f5ea473ca7
author Al Viro <viro@zeniv.linux.org.uk> Thu Nov 16 02:36:50 2006 -0800
committer David S. Miller <davem@sunset.davemloft.net> Sat Dec 02 21:23:39 2006 -0800
tree 4bf0fedcfaab7103682bc6209f196104fa9df8fb
parent b51655b958dfb1176bfcf99466231fdbef8751ff

[NET]: Make mangling a checksum (0 -> 0xffff on the wire) explicit.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/ipvs/ip_vs_proto_udp.c

diff --git a/net/ipv4/ipvs/ip_vs_proto_udp.c b/net/ipv4/ipvs/ip_vs_proto_udp.c
index 261581e..3647397 100644
--- a/net/ipv4/ipvs/ip_vs_proto_udp.c
+++ b/net/ipv4/ipvs/ip_vs_proto_udp.c
@@ -125,7 +125,7 @@
 				 ip_vs_check_diff(oldport ^ htons(0xFFFF),
 						  newport, uhdr->check));
 	if (!uhdr->check)
-		uhdr->check = -1;
+		uhdr->check = CSUM_MANGLED_0;
 }
 
 static int
@@ -173,7 +173,7 @@
 						cp->protocol,
 						(*pskb)->csum);
 		if (udph->check == 0)
-			udph->check = -1;
+			udph->check = CSUM_MANGLED_0;
 		IP_VS_DBG(11, "O-pkt: %s O-csum=%d (+%zd)\n",
 			  pp->name, udph->check,
 			  (char*)&(udph->check) - (char*)udph);
@@ -228,7 +228,7 @@
 						cp->protocol,
 						(*pskb)->csum);
 		if (udph->check == 0)
-			udph->check = -1;
+			udph->check = CSUM_MANGLED_0;
 		(*pskb)->ip_summed = CHECKSUM_UNNECESSARY;
 	}
 	return 1;