From 1be5b82c45850f495adf67887075507d5e8a860b Mon Sep 17 00:00:00 2001 From: "Matthieu Baerts (NGI0)" Date: Fri, 19 Sep 2025 14:09:03 +0200 Subject: [PATCH] mptcp: remove unused returned value of check_data_fin When working on a fix modifying mptcp_check_data_fin(), I noticed the returned value was no longer used. It looks like it was used for 3 days, between commit 7ed90803a213 ("mptcp: send explicit ack on delayed ack_seq incr") and commit ea4ca586b16f ("mptcp: refine MPTCP-level ack scheduling"). This returned value can be safely removed. Reviewed-by: Geliang Tang Signed-off-by: Matthieu Baerts (NGI0) Link: https://patch.msgid.link/20250919-net-next-mptcp-server-side-flag-v1-6-a97a5d561a8b@kernel.org Signed-off-by: Jakub Kicinski --- net/mptcp/protocol.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index d9fbddb99ad0f..735a209d40725 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -545,11 +545,10 @@ static void mptcp_cleanup_rbuf(struct mptcp_sock *msk, int copied) } } -static bool mptcp_check_data_fin(struct sock *sk) +static void mptcp_check_data_fin(struct sock *sk) { struct mptcp_sock *msk = mptcp_sk(sk); u64 rcv_data_fin_seq; - bool ret = false; /* Need to ack a DATA_FIN received from a peer while this side * of the connection is in ESTABLISHED, FIN_WAIT1, or FIN_WAIT2. @@ -588,12 +587,10 @@ static bool mptcp_check_data_fin(struct sock *sk) break; } - ret = true; if (!__mptcp_check_fallback(msk)) mptcp_send_ack(msk); mptcp_close_wake_up(sk); } - return ret; } static void mptcp_dss_corruption(struct mptcp_sock *msk, struct sock *ssk) -- 2.47.3