From: Geliang Tang <tanggeliang@kylinos.cn>

This patch moves mptcp_pm_close_subflow() forward to let it be used by both
the userspace PM and the in-kernel PM in mptcp_pm_subflow_check_next().
Then mptcp_pm_is_userspace() here can be dropped.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 net/mptcp/pm.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c
index 673313b9b25f..d576b03a64e1 100644
--- a/net/mptcp/pm.c
+++ b/net/mptcp/pm.c
@@ -559,22 +559,14 @@ void mptcp_pm_subflow_check_next(struct mptcp_sock *msk,
 	bool update_subflows;
 
 	update_subflows = subflow->request_join || subflow->mp_join;
-	if (mptcp_pm_is_userspace(msk)) {
-		if (update_subflows) {
-			spin_lock_bh(&pm->lock);
-			pm->subflows--;
-			spin_unlock_bh(&pm->lock);
-		}
-		return;
-	}
+	if (update_subflows)
+		mptcp_pm_close_subflow(msk);
 
 	if (!pm->ops->subflow_established ||
-	    (!READ_ONCE(pm->work_pending) && !update_subflows))
+	    !READ_ONCE(pm->work_pending))
 		return;
 
 	spin_lock_bh(&pm->lock);
-	if (update_subflows)
-		__mptcp_pm_close_subflow(msk);
 
 	/* Even if this subflow is not really established, tell the PM to try
 	 * to pick the next ones, if possible.
-- 
2.43.0