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fou: Remove IPPROTO_UDPLITE check in gue_err() and gue6_err(). 

UDP-Lite has been removed, and its error handler is no
longer found in either inet_protos[IPPROTO_UDPLITE] or
inet6_protos[IPPROTO_UDPLITE].

The recursion fixed by the protocol check in gue_err()
and gue6_err() no longer occurs with UDP-Lite.

Let's remove the checks.

Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260316133127.2646421-1-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
master
Kuniyuki Iwashima 2026-03-16 13:31:25 +00:00 committed by Jakub Kicinski
parent 05c1fc56d3
commit e3f741f587
2 changed files with 2 additions and 4 deletions
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3
net/ipv4/fou_core.c
View File

@ -1150,8 +1150,7 @@ static int gue_err(struct sk_buff *skb, u32 info)
* recursion. Besides, this kind of encapsulation can't even be
* configured currently. Discard this.
*/
if (guehdr->proto_ctype == IPPROTO_UDP ||
guehdr->proto_ctype == IPPROTO_UDPLITE)
if (guehdr->proto_ctype == IPPROTO_UDP)
return -EOPNOTSUPP;
skb_set_transport_header(skb, -(int)sizeof(struct icmphdr));

3
net/ipv6/fou6.c
View File

@ -141,8 +141,7 @@ static int gue6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
* recursion. Besides, this kind of encapsulation can't even be
* configured currently. Discard this.
*/
if (guehdr->proto_ctype == IPPROTO_UDP ||
guehdr->proto_ctype == IPPROTO_UDPLITE)
if (guehdr->proto_ctype == IPPROTO_UDP)
return -EOPNOTSUPP;
skb_set_transport_header(skb, -(int)sizeof(struct icmp6hdr));