From: Hannes Frederic Sowa hannes@stressinduktion.org
commit c148d16369ff0095eca950d17968ba1d56a47b53 upstream.
Cc: Tom Herbert tom@herbertland.com Fixes: 4068579e1e098fa ("net: Implmement RFC 6936 (zero RX csums for UDP/IPv6") Signed-off-by: Hannes Frederic Sowa hannes@stressinduktion.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- net/ipv6/ip6_checksum.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
--- a/net/ipv6/ip6_checksum.c +++ b/net/ipv6/ip6_checksum.c @@ -84,9 +84,12 @@ int udp6_csum_init(struct sk_buff *skb, * we accept a checksum of zero here. When we find the socket * for the UDP packet we'll check if that socket allows zero checksum * for IPv6 (set by socket option). + * + * Note, we are only interested in != 0 or == 0, thus the + * force to int. */ - return skb_checksum_init_zero_check(skb, proto, uh->check, - ip6_compute_pseudo); + return (__force int)skb_checksum_init_zero_check(skb, proto, uh->check, + ip6_compute_pseudo); } EXPORT_SYMBOL(udp6_csum_init);