mptcp_userspace_pm_append_new_local_addr is only used in pm_userspace.c,
so make it static.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
---
 net/mptcp/pm_userspace.c | 4 ++--
 net/mptcp/protocol.h     | 2 --
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c
index 465928c59917..2bda1a217709 100644
--- a/net/mptcp/pm_userspace.c
+++ b/net/mptcp/pm_userspace.c
@@ -25,8 +25,8 @@ void mptcp_free_local_addr_list(struct mptcp_sock *msk)
 	}
 }
 
-int mptcp_userspace_pm_append_new_local_addr(struct mptcp_sock *msk,
-					     struct mptcp_pm_addr_entry *entry)
+static int mptcp_userspace_pm_append_new_local_addr(struct mptcp_sock *msk,
+						    struct mptcp_pm_addr_entry *entry)
 {
 	DECLARE_BITMAP(id_bitmap, MPTCP_PM_MAX_ADDR_ID + 1);
 	struct mptcp_pm_addr_entry *match = NULL;
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index 46962a2581b4..421e587a4d62 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -849,8 +849,6 @@ int mptcp_pm_remove_subflow(struct mptcp_sock *msk, const struct mptcp_rm_list *
 void mptcp_pm_remove_addrs_and_subflows(struct mptcp_sock *msk,
 					struct list_head *rm_list);
 
-int mptcp_userspace_pm_append_new_local_addr(struct mptcp_sock *msk,
-					     struct mptcp_pm_addr_entry *entry);
 void mptcp_free_local_addr_list(struct mptcp_sock *msk);
 int mptcp_nl_cmd_announce(struct sk_buff *skb, struct genl_info *info);
 int mptcp_nl_cmd_remove(struct sk_buff *skb, struct genl_info *info);
-- 
2.35.3