On Sun, 07 Dec 2025 17:06:40 +0100 Lorenzo Bianconi wrote:
> Introduce SW acceleration for IP6IP6 tunnels in the netfilter flowtable
> infrastructure.
tc-testing build fails with this:
net/netfilter/nf_flow_table_ip.c: In function ‘nf_flow_ip6_tunnel_proto’:
net/netfilter/nf_flow_table_ip.c:370:42: error: ‘inet6_protos’ undeclared
(first use in this function); did you mean ‘inet_protos’?
370 | ipprot = rcu_dereference(inet6_protos[nexthdr]);
| ^~~~~~~~~~~~
./include/linux/rcupdate.h:532:17: note: in definition of macro
‘__rcu_dereference_check’
532 | typeof(*p) *local = (typeof(*p) *__force)READ_ONCE(p); \
| ^
./include/linux/rcupdate.h:770:28: note: in expansion of macro
‘rcu_dereference_check’
770 | #define rcu_dereference(p) rcu_dereference_check(p, 0)
| ^~~~~~~~~~~~~~~~~~~~~
net/netfilter/nf_flow_table_ip.c:370:26: note: in expansion of macro
‘rcu_dereference’
370 | ipprot = rcu_dereference(inet6_protos[nexthdr]);
| ^~~~~~~~~~~~~~~
net/netfilter/nf_flow_table_ip.c:370:42: note: each undeclared identifier is
reported only once for each function it appears in
370 | ipprot = rcu_dereference(inet6_protos[nexthdr]);
| ^~~~~~~~~~~~
./include/linux/rcupdate.h:532:17: note: in definition of macro
‘__rcu_dereference_check’
532 | typeof(*p) *local = (typeof(*p) *__force)READ_ONCE(p); \
| ^
./include/linux/rcupdate.h:770:28: note: in expansion of macro
‘rcu_dereference_check’
770 | #define rcu_dereference(p) rcu_dereference_check(p, 0)
| ^~~~~~~~~~~~~~~~~~~~~
net/netfilter/nf_flow_table_ip.c:370:26: note: in expansion of macro
‘rcu_dereference’
370 | ipprot = rcu_dereference(inet6_protos[nexthdr]);
| ^~~~~~~~~~~~~~~
net/netfilter/nf_flow_table_ip.c:374:27: error: invalid use of undefined type
‘const struct inet6_protocol’
374 | if (ipprot->flags & INET6_PROTO_FINAL) {
| ^~
net/netfilter/nf_flow_table_ip.c:374:37: error: ‘INET6_PROTO_FINAL’ undeclared
(first use in this function)
374 | if (ipprot->flags & INET6_PROTO_FINAL) {
| ^~~~~~~~~~~~~~~~~
net/netfilter/nf_flow_table_ip.c:383:29: error: invalid use of undefined type
‘const struct inet6_protocol’
383 | ret = ipprot->handler(skb);
| ^~
