From 8cf2ebdc0078a841fd54fcd50574bae1ae910d94 Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Fri, 11 Aug 2023 17:57:18 +0200 Subject: mptcp: mptcp: avoid additional indirection in mptcp_bind() We are going to remove the first subflow socket soon, so avoid the additional indirection via at bind() time. Instead call directly the recently introduced helpers on the first subflow sock. Signed-off-by: Paolo Abeni Reviewed-by: Mat Martineau Signed-off-by: Matthieu Baerts Signed-off-by: David S. Miller --- net/mptcp/protocol.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) (limited to 'net/mptcp') diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 891f49722263..5b4d6f0628a7 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -3689,22 +3689,29 @@ static struct proto mptcp_prot = { static int mptcp_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) { struct mptcp_sock *msk = mptcp_sk(sock->sk); + struct sock *ssk, *sk = sock->sk; struct socket *ssock; - int err; + int err = -EINVAL; - lock_sock(sock->sk); + lock_sock(sk); ssock = __mptcp_nmpc_socket(msk); if (IS_ERR(ssock)) { err = PTR_ERR(ssock); goto unlock; } - err = READ_ONCE(ssock->ops)->bind(ssock, uaddr, addr_len); + ssk = msk->first; + if (sk->sk_family == AF_INET) + err = inet_bind_sk(ssk, uaddr, addr_len); +#if IS_ENABLED(CONFIG_MPTCP_IPV6) + else if (sk->sk_family == AF_INET6) + err = inet6_bind_sk(ssk, uaddr, addr_len); +#endif if (!err) - mptcp_copy_inaddrs(sock->sk, ssock->sk); + mptcp_copy_inaddrs(sk, ssk); unlock: - release_sock(sock->sk); + release_sock(sk); return err; } -- cgit v1.2.3