This is a note to let you know that I've just added the patch titled

    mptcp: export local_address

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     mptcp-export-local_address.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


From stable+bounces-66067-greg=kroah.com@vger.kernel.org Thu Aug  8 17:36:21 2024
From: "Matthieu Baerts (NGI0)" <matttbe@kernel.org>
Date: Thu,  8 Aug 2024 17:35:47 +0200
Subject: mptcp: export local_address
To: stable@vger.kernel.org, gregkh@linuxfoundation.org
Cc: MPTCP Upstream <mptcp@lists.linux.dev>, Geliang Tang <geliang.tang@suse.com>, Matthieu Baerts <matthieu.baerts@tessares.net>, Larysa Zaremba <larysa.zaremba@intel.com>, Jakub Kicinski <kuba@kernel.org>, Matthieu Baerts <matttbe@kernel.org>
Message-ID: <20240808153546.2315845-3-matttbe@kernel.org>

From: Geliang Tang <geliang.tang@suse.com>

commit dc886bce753cc2cf3c88ec5c7a6880a4e17d65ba upstream.

Rename local_address() with "mptcp_" prefix and export it in protocol.h.

This function will be re-used in the common PM code (pm.c) in the
following commit.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 6834097fc38c ("mptcp: pm: fix backup support in signal endpoints")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/mptcp/pm_netlink.c |   17 ++++++++---------
 net/mptcp/protocol.h   |    1 +
 2 files changed, 9 insertions(+), 9 deletions(-)

--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -86,8 +86,7 @@ bool mptcp_addresses_equal(const struct
 	return a->port == b->port;
 }
 
-static void local_address(const struct sock_common *skc,
-			  struct mptcp_addr_info *addr)
+void mptcp_local_address(const struct sock_common *skc, struct mptcp_addr_info *addr)
 {
 	addr->family = skc->skc_family;
 	addr->port = htons(skc->skc_num);
@@ -122,7 +121,7 @@ static bool lookup_subflow_by_saddr(cons
 	list_for_each_entry(subflow, list, node) {
 		skc = (struct sock_common *)mptcp_subflow_tcp_sock(subflow);
 
-		local_address(skc, &cur);
+		mptcp_local_address(skc, &cur);
 		if (mptcp_addresses_equal(&cur, saddr, saddr->port))
 			return true;
 	}
@@ -274,7 +273,7 @@ bool mptcp_pm_sport_in_anno_list(struct
 	struct mptcp_addr_info saddr;
 	bool ret = false;
 
-	local_address((struct sock_common *)sk, &saddr);
+	mptcp_local_address((struct sock_common *)sk, &saddr);
 
 	spin_lock_bh(&msk->pm.lock);
 	list_for_each_entry(entry, &msk->pm.anno_list, list) {
@@ -545,7 +544,7 @@ static void mptcp_pm_create_subflow_or_s
 		struct mptcp_addr_info mpc_addr;
 		bool backup = false;
 
-		local_address((struct sock_common *)msk->first, &mpc_addr);
+		mptcp_local_address((struct sock_common *)msk->first, &mpc_addr);
 		rcu_read_lock();
 		entry = __lookup_addr(pernet, &mpc_addr, false);
 		if (entry) {
@@ -753,7 +752,7 @@ int mptcp_pm_nl_mp_prio_send_ack(struct
 		struct sock *ssk = mptcp_subflow_tcp_sock(subflow);
 		struct mptcp_addr_info local, remote;
 
-		local_address((struct sock_common *)ssk, &local);
+		mptcp_local_address((struct sock_common *)ssk, &local);
 		if (!mptcp_addresses_equal(&local, addr, addr->port))
 			continue;
 
@@ -1072,8 +1071,8 @@ int mptcp_pm_nl_get_local_id(struct mptc
 	/* The 0 ID mapping is defined by the first subflow, copied into the msk
 	 * addr
 	 */
-	local_address((struct sock_common *)msk, &msk_local);
-	local_address((struct sock_common *)skc, &skc_local);
+	mptcp_local_address((struct sock_common *)msk, &msk_local);
+	mptcp_local_address((struct sock_common *)skc, &skc_local);
 	if (mptcp_addresses_equal(&msk_local, &skc_local, false))
 		return 0;
 
@@ -1507,7 +1506,7 @@ static int mptcp_nl_remove_id_zero_addre
 		if (list_empty(&msk->conn_list) || mptcp_pm_is_userspace(msk))
 			goto next;
 
-		local_address((struct sock_common *)msk, &msk_local);
+		mptcp_local_address((struct sock_common *)msk, &msk_local);
 		if (!mptcp_addresses_equal(&msk_local, addr, addr->port))
 			goto next;
 
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -618,6 +618,7 @@ void __mptcp_unaccepted_force_close(stru
 
 bool mptcp_addresses_equal(const struct mptcp_addr_info *a,
 			   const struct mptcp_addr_info *b, bool use_port);
+void mptcp_local_address(const struct sock_common *skc, struct mptcp_addr_info *addr);
 
 /* called with sk socket lock held */
 int __mptcp_subflow_connect(struct sock *sk, const struct mptcp_addr_info *loc,


Patches currently in stable-queue which might be from kroah.com@vger.kernel.org are

queue-6.1/mptcp-pm-fix-backup-support-in-signal-endpoints.patch
queue-6.1/selftests-mptcp-join-check-backup-support-in-signal-endp.patch
queue-6.1/selftests-mptcp-join-validate-backup-in-mpj.patch
queue-6.1/mptcp-export-local_address.patch