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Message-Id: <20230811-upstream-net-next-20230811-mptcp-get-rid-of-msk-subflow-v1-3-36183269ade8@tessares.net> Date: Fri, 11 Aug 2023 17:57:16 +0200 From: Matthieu Baerts <matthieu.baerts@...sares.net> To: mptcp@...ts.linux.dev, Mat Martineau <martineau@...nel.org>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, David Ahern <dsahern@...nel.org> Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, Matthieu Baerts <matthieu.baerts@...sares.net> Subject: [PATCH net-next 03/14] mptcp: avoid subflow socket usage in mptcp_get_port() From: Paolo Abeni <pabeni@...hat.com> We are going to remove the first subflow socket soon, so avoid accessing it in mptcp_get_port(). Instead, access directly the first subflow sock. Signed-off-by: Paolo Abeni <pabeni@...hat.com> Reviewed-by: Mat Martineau <martineau@...nel.org> Signed-off-by: Matthieu Baerts <matthieu.baerts@...sares.net> --- net/mptcp/protocol.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index b888d6339c80..891f49722263 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -3405,14 +3405,12 @@ static void mptcp_unhash(struct sock *sk) static int mptcp_get_port(struct sock *sk, unsigned short snum) { struct mptcp_sock *msk = mptcp_sk(sk); - struct socket *ssock; - ssock = msk->subflow; - pr_debug("msk=%p, subflow=%p", msk, ssock); - if (WARN_ON_ONCE(!ssock)) + pr_debug("msk=%p, ssk=%p", msk, msk->first); + if (WARN_ON_ONCE(!msk->first)) return -EINVAL; - return inet_csk_get_port(ssock->sk, snum); + return inet_csk_get_port(msk->first, snum); } void mptcp_finish_connect(struct sock *ssk) -- 2.40.1
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