netfilter: change generic l4 protocol number

0 is used by Hop-by-hop header and so this may cause confusion.
255 is stated as 'Reserved' by IANA.

Signed-off-by: Christoph Paasch <christoph.paasch@student.uclouvain.be>
Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/netfilter/nf_conntrack_proto_generic.c b/net/netfilter/nf_conntrack_proto_generic.c
index 4be80d7b8795..829374f426c4 100644
--- a/net/netfilter/nf_conntrack_proto_generic.c
+++ b/net/netfilter/nf_conntrack_proto_generic.c
@@ -92,7 +92,7 @@ static struct ctl_table generic_compat_sysctl_table[] = {
 struct nf_conntrack_l4proto nf_conntrack_l4proto_generic __read_mostly =
 {
         .l3proto                = PF_UNSPEC,
-        .l4proto                = 0,
+        .l4proto                = 255,
         .name                   = "unknown",
         .pkt_to_tuple           = generic_pkt_to_tuple,
         .invert_tuple           = generic_invert_tuple,