On Mon, 2022-09-05 at 10:05 +0300, Leonard Crestez wrote: [...] > diff --git a/net/ipv4/tcp_authopt.c b/net/ipv4/tcp_authopt.c > new file mode 100644 > index 000000000000..d38e9c89c89d > --- /dev/null > +++ b/net/ipv4/tcp_authopt.c > @@ -0,0 +1,317 @@ > +// SPDX-License-Identifier: GPL-2.0-or-later > + > +#include <net/tcp_authopt.h> > +#include <net/ipv6.h> > +#include <net/tcp.h> > +#include <linux/kref.h> > + > +/* This is enabled when first struct tcp_authopt_info is allocated and never released */ > +DEFINE_STATIC_KEY_FALSE(tcp_authopt_needed_key); > +EXPORT_SYMBOL(tcp_authopt_needed_key); > + > +static inline struct netns_tcp_authopt *sock_net_tcp_authopt(const struct sock *sk) > +{ > + return &sock_net(sk)->tcp_authopt; > +} Please have a look at PW report for this series, there are a bunch of issues to be addressed, e.g. above 'static inline' should be just 'static' > + > +static void tcp_authopt_key_release_kref(struct kref *ref) > +{ > + struct tcp_authopt_key_info *key = container_of(ref, struct tcp_authopt_key_info, ref); > + > + kfree_rcu(key, rcu); > +} > + > +static void tcp_authopt_key_put(struct tcp_authopt_key_info *key) > +{ > + if (key) > + kref_put(&key->ref, tcp_authopt_key_release_kref); > +} > + > +static void tcp_authopt_key_del(struct netns_tcp_authopt *net, > + struct tcp_authopt_key_info *key) > +{ > + lockdep_assert_held(&net->mutex); > + hlist_del_rcu(&key->node); > + key->flags |= TCP_AUTHOPT_KEY_DEL; > + kref_put(&key->ref, tcp_authopt_key_release_kref); > +} > + > +/* Free info and keys. > + * Don't touch tp->authopt_info, it might not even be assigned yes. > + */ > +void tcp_authopt_free(struct sock *sk, struct tcp_authopt_info *info) this need to be 'static'. I'm sorry to bring the next topic this late (If already discussed, I missed that point), is possible to split this series in smaller chunks? Cheers, Paolo