diff --git a/include/net/udp.h b/include/net/udp.h index d9d39cc20a84..9787a42f7ed3 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -459,6 +459,7 @@ void udp_init(void); DECLARE_STATIC_KEY_FALSE(udp_encap_needed_key); void udp_encap_enable(void); +void udp_encap_disable(void); #if IS_ENABLED(CONFIG_IPV6) DECLARE_STATIC_KEY_FALSE(udpv6_encap_needed_key); void udpv6_encap_enable(void); diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h index 4b1f95e08307..27bf9f4dd1d4 100644 --- a/include/net/udp_tunnel.h +++ b/include/net/udp_tunnel.h @@ -178,9 +178,8 @@ static inline void udp_tunnel_encap_enable(struct socket *sock) #if IS_ENABLED(CONFIG_IPV6) if (sock->sk->sk_family == PF_INET6) ipv6_stub->udpv6_encap_enable(); - else #endif - udp_encap_enable(); + udp_encap_enable(); } #endif diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 3cdf011a8dd8..83fd4fa40d5e 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -544,6 +544,12 @@ void udp_encap_enable(void) } EXPORT_SYMBOL(udp_encap_enable); +void udp_encap_disable(void) +{ + static_branch_dec(&udp_encap_needed_key); +} +EXPORT_SYMBOL(udp_encap_disable); + /* Handler for tunnels with arbitrary destination ports: no socket lookup, go * through error handlers in encapsulations looking for a match. */ diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index a71bfa5b0277..040869f45682 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1553,8 +1553,10 @@ void udpv6_destroy_sock(struct sock *sk) if (encap_destroy) encap_destroy(sk); } - if (up->encap_enabled) + if (up->encap_enabled) { static_branch_dec(&udpv6_encap_needed_key); + udp_encap_disable(); + } } inet6_destroy_sock(sk);