Subject: linux-next: manual merge of the net-next tree with the net tree

From: Stephen Rothwell <[email-masked]>
Date: Wed, 28 Feb 2024 10:30:48 +1100

Hi all,

Today's linux-next merge of the net-next tree got a conflict in:

  net/mptcp/protocol.c

between commit:

  adf1bb78dab5 ("mptcp: fix snd_wnd initialization for passive socket")

from the net tree and commits:

  d440a4e27acd ("mptcp: annotate lockless access for the tx path")
  9426ce476a70 ("mptcp: annotate lockless access for RX path fields")

from the net-next tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc net/mptcp/protocol.c
index 7833a49f6214,9df4eaddfd48..000000000000
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@@ -3242,25 -3204,18 +3247,25 @@@ struct sock *mptcp_sk_clone_init(const 
  
  	__mptcp_init_sock(nsk);
  
 +#if IS_ENABLED(CONFIG_MPTCP_IPV6)
 +	if (nsk->sk_family == AF_INET6)
 +		mptcp_copy_ip6_options(nsk, sk);
 +	else
 +#endif
 +		mptcp_copy_ip_options(nsk, sk);
 +
  	msk = mptcp_sk(nsk);
- 	msk->local_key = subflow_req->local_key;
- 	msk->token = subflow_req->token;
+ 	WRITE_ONCE(msk->local_key, subflow_req->local_key);
+ 	WRITE_ONCE(msk->token, subflow_req->token);
  	msk->in_accept_queue = 1;
  	WRITE_ONCE(msk->fully_established, false);
  	if (mp_opt->suboptions & OPTION_MPTCP_CSUMREQD)
  		WRITE_ONCE(msk->csum_enabled, true);
  
- 	msk->write_seq = subflow_req->idsn + 1;
- 	msk->snd_nxt = msk->write_seq;
- 	msk->snd_una = msk->write_seq;
- 	msk->wnd_end = msk->snd_nxt + tcp_sk(ssk)->snd_wnd;
+ 	WRITE_ONCE(msk->write_seq, subflow_req->idsn + 1);
+ 	WRITE_ONCE(msk->snd_nxt, msk->write_seq);
+ 	WRITE_ONCE(msk->snd_una, msk->write_seq);
 -	WRITE_ONCE(msk->wnd_end, msk->snd_nxt + req->rsk_rcv_wnd);
++	WRITE_ONCE(msk->wnd_end, msk->snd_nxt + tcp_sk(ssk)->snd_wnd);
  	msk->setsockopt_seq = mptcp_sk(sk)->setsockopt_seq;
  	mptcp_init_sched(msk, mptcp_sk(sk)->sched);