summaryrefslogtreecommitdiff
path: root/net
diff options
context:
space:
mode:
authorHannes Frederic Sowa <hannes@stressinduktion.org>2016-06-11 21:15:37 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-05-10 10:26:16 +0200
commitec2bb1ea9ee44bcd7179c2ef342ab28cd49e8efd (patch)
treebdf29dab75fdd86cc1dcce3eece407738218a5c6 /net
parentc3fff52f7aaf1238e51c43d97b440fb7ca57d301 (diff)
ipv6: fix checksum annotation in udp6_csum_init
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>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/ip6_checksum.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/net/ipv6/ip6_checksum.c b/net/ipv6/ip6_checksum.c
index 391a8fedb27e..1132624edee9 100644
--- a/net/ipv6/ip6_checksum.c
+++ b/net/ipv6/ip6_checksum.c
@@ -84,9 +84,12 @@ int udp6_csum_init(struct sk_buff *skb, struct udphdr *uh, int proto)
* 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);