| Message ID | 20240223-upstream-net-20240223-misc-fixes-v1-5-162e87e48497@kernel.org |
|---|---|
| State | New |
| Headers | show |
| Series | mptcp: more misc. fixes for v6.8 | expand |
Hi Jakub, Paolo, Stephen, On 23/02/2024 5:14 pm, Matthieu Baerts (NGI0) wrote: > From: Paolo Abeni <pabeni@redhat.com> > > Such value should be inherited from the first subflow, but > passive sockets always used 'rsk_rcv_wnd'. > > Fixes: 6f8a612a33e4 ("mptcp: keep track of advertised windows right edge") > Cc: stable@vger.kernel.org > Signed-off-by: Paolo Abeni <pabeni@redhat.com> > Reviewed-by: Mat Martineau <martineau@kernel.org> > Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> > --- > net/mptcp/protocol.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c > index 442fa7d9b57a..2c8f931c6d5b 100644 > --- a/net/mptcp/protocol.c > +++ b/net/mptcp/protocol.c > @@ -3211,7 +3211,7 @@ struct sock *mptcp_sk_clone_init(const struct sock *sk, > 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 + req->rsk_rcv_wnd; > + msk->wnd_end = msk->snd_nxt + tcp_sk(ssk)->snd_wnd; Please note that this patch will conflict with the following commit from net-next: 3f83d8a77eee ("mptcp: fix more tx path fields initialization") That's because this commit modifies the same line as the one modified here. We cannot avoid a conflict here. To fix it, please use 'WRITE_ONCE()' with the new line from -net: WRITE_ONCE(msk->wnd_end, msk->snd_nxt + tcp_sk(ssk)->snd_wnd); A 3-way diff has been attached to this email. > msk->setsockopt_seq = mptcp_sk(sk)->setsockopt_seq; > mptcp_init_sched(msk, mptcp_sk(sk)->sched); > > Cheers, Matt
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 442fa7d9b57a..2c8f931c6d5b 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -3211,7 +3211,7 @@ struct sock *mptcp_sk_clone_init(const struct sock *sk, 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 + req->rsk_rcv_wnd; + 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);