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Message-Id: <20230227-upstream-net-20230227-mptcp-fixes-v2-6-47c2e95eada9@tessares.net>
Date:   Thu, 09 Mar 2023 15:50:02 +0100
From:   Matthieu Baerts <matthieu.baerts@...sares.net>
To:     mptcp@...ts.linux.dev, "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Mat Martineau <martineau@...nel.org>,
        Jiang Biao <benbjiang@...cent.com>,
        Menglong Dong <imagedong@...cent.com>,
        Mengen Sun <mengensun@...cent.com>,
        Shuah Khan <shuah@...nel.org>, Florian Westphal <fw@...len.de>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org,
        Matthieu Baerts <matthieu.baerts@...sares.net>,
        Geliang Tang <geliang.tang@...e.com>, stable@...r.kernel.org
Subject: [PATCH net v2 6/8] mptcp: add ro_after_init for
 tcp{,v6}_prot_override

From: Geliang Tang <geliang.tang@...e.com>

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@...r.kernel.org
Fixes: 51fa7f8ebf0e ("mptcp: mark ops structures as ro_after_init")
Signed-off-by: Geliang Tang <geliang.tang@...e.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@...sares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@...sares.net>
---
 net/mptcp/subflow.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index 9c57575df84c..2aadc8733369 100644
--- 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 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)
 {
@@ -926,7 +926,7 @@ static struct sock *subflow_syn_recv_sock(const struct sock *sk,
 }
 
 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,

-- 
2.39.2

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