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/ipv6/raw.c

diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 9b21d67..c2e629d 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -536,8 +536,8 @@
 				   &fl->fl6_dst,
 				   total_len, fl->proto, tmp_csum);
 
-	if (tmp_csum == 0 && fl->proto == IPPROTO_UDP)
-		tmp_csum = -1;
+	if (csum == 0 && fl->proto == IPPROTO_UDP)
+		csum = CSUM_MANGLED_0;
 
 	if (skb_store_bits(skb, offset, &csum, 2))
 		BUG();