[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>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 9b21d67ca48c..c2e629d6aea4 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -536,8 +536,8 @@ static int rawv6_push_pending_frames(struct sock *sk, struct flowi *fl,
                                    &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();