[ovs-dev] [PATCH nf-next 4/4] openvswitch: __nf_ct_l{3, 4}proto_find() always return a valid pointer

[Pablo Neira Ayuso]

If the protocol is not natively supported, this assigns generic protocol
tracker so we can always assume a valid pointer after these calls.

Signed-off-by: Pablo Neira Ayuso <pablo at netfilter.org>
---
 net/openvswitch/conntrack.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c
index 9741a76..9f0bc49 100644
--- a/net/openvswitch/conntrack.c
+++ b/net/openvswitch/conntrack.c
@@ -439,20 +439,12 @@ ovs_ct_find_existing(struct net *net, const struct nf_conntrack_zone *zone,
 	u8 protonum;
 
 	l3proto = __nf_ct_l3proto_find(l3num);
-	if (!l3proto) {
-		pr_debug("ovs_ct_find_existing: Can't get l3proto\n");
-		return NULL;
-	}
 	if (l3proto->get_l4proto(skb, skb_network_offset(skb), &dataoff,
 				 &protonum) <= 0) {
 		pr_debug("ovs_ct_find_existing: Can't get protonum\n");
 		return NULL;
 	}
 	l4proto = __nf_ct_l4proto_find(l3num, protonum);
-	if (!l4proto) {
-		pr_debug("ovs_ct_find_existing: Can't get l4proto\n");
-		return NULL;
-	}
 	if (!nf_ct_get_tuple(skb, skb_network_offset(skb), dataoff, l3num,
 			     protonum, net, &tuple, l3proto, l4proto)) {
 		pr_debug("ovs_ct_find_existing: Can't get tuple\n");
-- 
2.1.4