RDMA/rtrs-srv: Kill __rtrs_srv_change_state

No need since the only user is rtrs_srv_change_state.

Link: https://lore.kernel.org/r/20210528113018.52290-11-jinpu.wang@ionos.comSigned-off-by: Guoqing Jiang <guoqing.jiang@ionos.com>
Reviewed-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/ulp/rtrs/rtrs-srv.c

@@ -67,13 +67,13 @@ static inline struct rtrs_srv_sess *to_srv_sess(struct rtrs_sess *s)
 	return container_of(s, struct rtrs_srv_sess, s);
 }
 
-static bool __rtrs_srv_change_state(struct rtrs_srv_sess *sess,
-				     enum rtrs_srv_state new_state)
+static bool rtrs_srv_change_state(struct rtrs_srv_sess *sess,
+				  enum rtrs_srv_state new_state)
 {
 	enum rtrs_srv_state old_state;
 	bool changed = false;
 
-	lockdep_assert_held(&sess->state_lock);
+	spin_lock_irq(&sess->state_lock);
 	old_state = sess->state;
 	switch (new_state) {
 	case RTRS_SRV_CONNECTED:
@@ -94,17 +94,6 @@ static bool __rtrs_srv_change_state(struct rtrs_srv_sess *sess,
 	}
 	if (changed)
 		sess->state = new_state;
-
-	return changed;
-}
-
-static bool rtrs_srv_change_state(struct rtrs_srv_sess *sess,
-				   enum rtrs_srv_state new_state)
-{
-	bool changed;
-
-	spin_lock_irq(&sess->state_lock);
-	changed = __rtrs_srv_change_state(sess, new_state);
 	spin_unlock_irq(&sess->state_lock);
 
 	return changed;