mptcp: add ro_after_init for tcp{,v6}_prot_override

Add __ro_after_init labels for the variables tcp_prot_override and
tcpv6_prot_override, just like other variables adjacent to them, to
indicate that they are initialised from the init hooks and no writes
occur afterwards.

Fixes: b19bc2945b40 ("mptcp: implement delegated actions")
Cc: stable@vger.kernel.org
Fixes: 51fa7f8ebf0e ("mptcp: mark ops structures as ro_after_init")
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index 9c57575df84c4813cd06f3d81d0bf5ae3ca8b9cf..2aadc8733369083f7678d821ad036d04d72bda46 100644 (file)
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -628,7 +628,7 @@ static struct request_sock_ops mptcp_subflow_v6_request_sock_ops __ro_after_init
 static struct tcp_request_sock_ops subflow_request_sock_ipv6_ops __ro_after_init;
 static struct inet_connection_sock_af_ops subflow_v6_specific __ro_after_init;
 static struct inet_connection_sock_af_ops subflow_v6m_specific __ro_after_init;
 static struct tcp_request_sock_ops subflow_request_sock_ipv6_ops __ro_after_init;
 static struct inet_connection_sock_af_ops subflow_v6_specific __ro_after_init;
 static struct inet_connection_sock_af_ops subflow_v6m_specific __ro_after_init;

-static struct proto tcpv6_prot_override;
+static struct proto tcpv6_prot_override __ro_after_init;

 
 static int subflow_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 {
 
 static int subflow_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 {


@@ -926,7 +926,7 @@ dispose_child:
 }
 
 static struct inet_connection_sock_af_ops subflow_specific __ro_after_init;
 }
 
 static struct inet_connection_sock_af_ops subflow_specific __ro_after_init;

-static struct proto tcp_prot_override;
+static struct proto tcp_prot_override __ro_after_init;

 
 enum mapping_status {
        MAPPING_OK,
 
 enum mapping_status {
        MAPPING_OK,