[PATCH 5.10 048/518] mptcp: export lookup_anno_list_by_saddr

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5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Geliang Tang <geliangtang@xxxxxxxxx>

commit d88c476f4a7dd69a2588470f6c4f8b663efa16c6 upstream.

This patch exported the static function lookup_anno_list_by_saddr, and
renamed it to mptcp_lookup_anno_list_by_saddr.

Signed-off-by: Geliang Tang <geliangtang@xxxxxxxxx>
Signed-off-by: Mat Martineau <mathew.j.martineau@xxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Stable-dep-of: b4cd80b03389 ("mptcp: pm: Fix uaf in __timer_delete_sync")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 net/mptcp/pm_netlink.c |   10 +++++-----
 net/mptcp/protocol.h   |    3 +++
 2 files changed, 8 insertions(+), 5 deletions(-)

--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -194,9 +194,9 @@ static void check_work_pending(struct mp
 		WRITE_ONCE(msk->pm.work_pending, false);
 }
 
-static struct mptcp_pm_add_entry *
-lookup_anno_list_by_saddr(struct mptcp_sock *msk,
-			  struct mptcp_addr_info *addr)
+struct mptcp_pm_add_entry *
+mptcp_lookup_anno_list_by_saddr(struct mptcp_sock *msk,
+				struct mptcp_addr_info *addr)
 {
 	struct mptcp_pm_add_entry *entry;
 
@@ -255,7 +255,7 @@ mptcp_pm_del_add_timer(struct mptcp_sock
 	struct sock *sk = (struct sock *)msk;
 
 	spin_lock_bh(&msk->pm.lock);
-	entry = lookup_anno_list_by_saddr(msk, addr);
+	entry = mptcp_lookup_anno_list_by_saddr(msk, addr);
 	if (entry)
 		entry->retrans_times = ADD_ADDR_RETRANS_MAX;
 	spin_unlock_bh(&msk->pm.lock);
@@ -272,7 +272,7 @@ static bool mptcp_pm_alloc_anno_list(str
 	struct mptcp_pm_add_entry *add_entry = NULL;
 	struct sock *sk = (struct sock *)msk;
 
-	if (lookup_anno_list_by_saddr(msk, &entry->addr))
+	if (mptcp_lookup_anno_list_by_saddr(msk, &entry->addr))
 		return false;
 
 	add_entry = kmalloc(sizeof(*add_entry), GFP_ATOMIC);
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -451,6 +451,9 @@ void mptcp_pm_free_anno_list(struct mptc
 struct mptcp_pm_add_entry *
 mptcp_pm_del_add_timer(struct mptcp_sock *msk,
 		       struct mptcp_addr_info *addr);
+struct mptcp_pm_add_entry *
+mptcp_lookup_anno_list_by_saddr(struct mptcp_sock *msk,
+				struct mptcp_addr_info *addr);
 
 int mptcp_pm_announce_addr(struct mptcp_sock *msk,
 			   const struct mptcp_addr_info *addr,






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