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From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: Eric Dumazet <edumazet@google.com>,
	Kuniyuki Iwashima <kuniyu@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH 6.18.y 1/4] tcp: rename icsk_timeout() to tcp_timeout_expires()
Date: Wed, 16 Sep 2026 22:50:12 -0400	[thread overview]
Message-ID: <20260917025015.3917201-1-sashal@kernel.org> (raw)
In-Reply-To: <2026091620-haziness-luridness-ad42@gregkh>

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit 3a6e8fd0bf4042c572dc52e634878b9aca02970d ]

In preparation of sk->tcp_timeout_timer introduction,
rename icsk_timeout() helper and change its argument to plain
'const struct sock *sk'.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20251124175013.1473655-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 85c580b0d859 ("mptcp: prevent race between disconnect() and rtx")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/inet_connection_sock.h | 5 ++---
 net/ipv4/inet_diag.c               | 4 ++--
 net/ipv4/tcp_ipv4.c                | 4 ++--
 net/ipv4/tcp_timer.c               | 6 +++---
 net/ipv6/tcp_ipv6.c                | 4 ++--
 net/mptcp/protocol.c               | 2 +-
 6 files changed, 12 insertions(+), 13 deletions(-)

diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index afec146b8bafd..3a239b655d548 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -186,10 +186,9 @@ static inline void inet_csk_delack_init(struct sock *sk)
 	memset(&inet_csk(sk)->icsk_ack, 0, sizeof(inet_csk(sk)->icsk_ack));
 }
 
-static inline unsigned long
-icsk_timeout(const struct inet_connection_sock *icsk)
+static inline unsigned long tcp_timeout_expires(const struct sock *sk)
 {
-	return READ_ONCE(icsk->icsk_retransmit_timer.expires);
+	return READ_ONCE(inet_csk(sk)->icsk_retransmit_timer.expires);
 }
 
 static inline unsigned long
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index f0b6c5a411a20..9f63c09439a05 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -287,12 +287,12 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
 		r->idiag_timer = 1;
 		r->idiag_retrans = READ_ONCE(icsk->icsk_retransmits);
 		r->idiag_expires =
-			jiffies_delta_to_msecs(icsk_timeout(icsk) - jiffies);
+			jiffies_delta_to_msecs(tcp_timeout_expires(sk) - jiffies);
 	} else if (icsk_pending == ICSK_TIME_PROBE0) {
 		r->idiag_timer = 4;
 		r->idiag_retrans = READ_ONCE(icsk->icsk_probes_out);
 		r->idiag_expires =
-			jiffies_delta_to_msecs(icsk_timeout(icsk) - jiffies);
+			jiffies_delta_to_msecs(tcp_timeout_expires(sk) - jiffies);
 	} else if (timer_pending(&sk->sk_timer)) {
 		r->idiag_timer = 2;
 		r->idiag_retrans = READ_ONCE(icsk->icsk_probes_out);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index dcd7c9f12c253..b4ee14c769213 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2928,10 +2928,10 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i)
 	    icsk_pending == ICSK_TIME_REO_TIMEOUT ||
 	    icsk_pending == ICSK_TIME_LOSS_PROBE) {
 		timer_active	= 1;
-		timer_expires	= icsk_timeout(icsk);
+		timer_expires	= tcp_timeout_expires(sk);
 	} else if (icsk_pending == ICSK_TIME_PROBE0) {
 		timer_active	= 4;
-		timer_expires	= icsk_timeout(icsk);
+		timer_expires	= tcp_timeout_expires(sk);
 	} else if (timer_pending(&sk->sk_timer)) {
 		timer_active	= 2;
 		timer_expires	= sk->sk_timer.expires;
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 9ebce13fa8ad8..9565b37773b87 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -513,7 +513,7 @@ static bool tcp_rtx_probe0_timed_out(const struct sock *sk,
 	 * and tp->rcv_tstamp might very well have been written recently.
 	 * rcv_delta can thus be negative.
 	 */
-	rcv_delta = icsk_timeout(icsk) - tp->rcv_tstamp;
+	rcv_delta = tcp_timeout_expires(sk) - tp->rcv_tstamp;
 	if (rcv_delta <= timeout)
 		return false;
 
@@ -700,9 +700,9 @@ void tcp_write_timer_handler(struct sock *sk)
 	    !icsk->icsk_pending)
 		return;
 
-	if (time_after(icsk_timeout(icsk), jiffies)) {
+	if (time_after(tcp_timeout_expires(sk), jiffies)) {
 		sk_reset_timer(sk, &icsk->icsk_retransmit_timer,
-			       icsk_timeout(icsk));
+			       tcp_timeout_expires(sk));
 		return;
 	}
 	tcp_mstamp_refresh(tcp_sk(sk));
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 9e1db70c20943..fa94bdafbd02a 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -2200,10 +2200,10 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
 	    icsk_pending == ICSK_TIME_REO_TIMEOUT ||
 	    icsk_pending == ICSK_TIME_LOSS_PROBE) {
 		timer_active	= 1;
-		timer_expires	= icsk_timeout(icsk);
+		timer_expires	= tcp_timeout_expires(sp);
 	} else if (icsk_pending == ICSK_TIME_PROBE0) {
 		timer_active	= 4;
-		timer_expires	= icsk_timeout(icsk);
+		timer_expires	= tcp_timeout_expires(sp);
 	} else if (timer_pending(&sp->sk_timer)) {
 		timer_active	= 2;
 		timer_expires	= sp->sk_timer.expires;
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 1bf9b1dfc431c..4c318438b844c 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -533,7 +533,7 @@ static long mptcp_timeout_from_subflow(const struct mptcp_subflow_context *subfl
 	const struct sock *ssk = mptcp_subflow_tcp_sock(subflow);
 
 	return inet_csk(ssk)->icsk_pending && !subflow->stale_count ?
-	       icsk_timeout(inet_csk(ssk)) - jiffies : 0;
+	       tcp_timeout_expires(ssk) - jiffies : 0;
 }
 
 static void mptcp_set_timeout(struct sock *sk)
-- 
2.53.0


  reply	other threads:[~2026-09-17  2:50 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-16 16:34 FAILED: patch "[PATCH] mptcp: prevent race between disconnect() and rtx" failed to apply to 6.18-stable tree gregkh
2026-09-17  2:50 ` Sasha Levin [this message]
2026-09-17  2:50   ` [PATCH 6.18.y 2/4] tcp: introduce icsk->icsk_keepalive_timer Sasha Levin
2026-09-17  2:50   ` [PATCH 6.18.y 3/4] tcp: remove icsk->icsk_retransmit_timer Sasha Levin
2026-09-17  2:50   ` [PATCH 6.18.y 4/4] mptcp: prevent race between disconnect() and rtx Sasha Levin
  -- strict thread matches above, loose matches on Subject: below --
2026-09-16 16:29 FAILED: patch "[PATCH] mptcp: do not reschedule the RTX timer for fallback sockets" failed to apply to 6.18-stable tree gregkh
2026-09-17  2:18 ` [PATCH 6.18.y 1/4] tcp: rename icsk_timeout() to tcp_timeout_expires() Sasha Levin

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