[PATCH net 7/7] mptcp: avoid setting TCP_CLOSE state twice

From: Matthieu Baerts
Date: Mon Feb 27 2023 - 12:30:36 EST


tcp_set_state() is called from tcp_done() already.

There is then no need to first set the state to TCP_CLOSE, then call
tcp_done().

Fixes: d582484726c4 ("mptcp: fix fallback for MP_JOIN subflows")
Cc: stable@xxxxxxxxxxxxxxx
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/362
Acked-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>
---
net/mptcp/subflow.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index f6b4511b09b0..b865ba911bc4 100644
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -406,7 +406,6 @@ void mptcp_subflow_reset(struct sock *ssk)
/* must hold: tcp_done() could drop last reference on parent */
sock_hold(sk);

- tcp_set_state(ssk, TCP_CLOSE);
tcp_send_active_reset(ssk, GFP_ATOMIC);
tcp_done(ssk);
if (!test_and_set_bit(MPTCP_WORK_CLOSE_SUBFLOW, &mptcp_sk(sk)->flags) &&

--
2.38.1