scsi: libfc: Replace ->seq_set_resp callback with direct function call

The ->seq_set_resp callback only ever had one implementation,
so call it directly and drop the callback.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/libfc/fc_exch.c

@@ -602,9 +602,8 @@ EXPORT_SYMBOL(fc_seq_start_next);
  *
  * Note: May sleep if invoked from outside a response handler.
  */
-static void fc_seq_set_resp(struct fc_seq *sp,
-			    void (*resp)(struct fc_seq *, struct fc_frame *,
-					 void *),
+void fc_seq_set_resp(struct fc_seq *sp,
+		     void (*resp)(struct fc_seq *, struct fc_frame *, void *),
 		     void *arg)
 {
 	struct fc_exch *ep = fc_seq_exch(sp);
@@ -624,6 +623,7 @@ static void fc_seq_set_resp(struct fc_seq *sp,
 	ep->arg = arg;
 	spin_unlock_bh(&ep->ex_lock);
 }
+EXPORT_SYMBOL(fc_seq_set_resp);
 
 /**
  * fc_exch_abort_locked() - Abort an exchange
@@ -2650,9 +2650,6 @@ EXPORT_SYMBOL(fc_exch_recv);
  */
 int fc_exch_init(struct fc_lport *lport)
 {
-	if (!lport->tt.seq_set_resp)
-		lport->tt.seq_set_resp = fc_seq_set_resp;
-
 	if (!lport->tt.exch_mgr_reset)
 		lport->tt.exch_mgr_reset = fc_exch_mgr_reset;
 

drivers/target/tcm_fc/tfc_cmd.c

@@ -563,7 +563,7 @@ static void ft_send_work(struct work_struct *work)
 		task_attr = TCM_SIMPLE_TAG;
 	}
 
-	fc_seq_exch(cmd->seq)->lp->tt.seq_set_resp(cmd->seq, ft_recv_seq, cmd);
+	fc_seq_set_resp(cmd->seq, ft_recv_seq, cmd);
 	cmd->se_cmd.tag = fc_seq_exch(cmd->seq)->rxid;
 	/*
 	 * Use a single se_cmd->cmd_kref as we expect to release se_cmd

include/scsi/libfc.h

@@ -514,16 +514,6 @@ struct libfc_function_template {
 	 */
 	void (*get_lesb)(struct fc_lport *, struct fc_els_lesb *lesb);
 
-	/*
-	 * Set a response handler for the exchange of the sequence.
-	 *
-	 * STATUS: OPTIONAL
-	 */
-	void (*seq_set_resp)(struct fc_seq *sp,
-			     void (*resp)(struct fc_seq *, struct fc_frame *,
-					  void *),
-			     void *arg);
-
 	/*
 	 * Assign a sequence for an incoming request frame.
 	 *
@@ -1013,6 +1003,9 @@ struct fc_seq *fc_exch_seq_send(struct fc_lport *lport,
 void fc_seq_els_rsp_send(struct fc_frame *, enum fc_els_cmd,
 			 struct fc_seq_els_data *);
 struct fc_seq *fc_seq_start_next(struct fc_seq *sp);
+void fc_seq_set_resp(struct fc_seq *sp,
+		     void (*resp)(struct fc_seq *, struct fc_frame *, void *),
+		     void *arg);
 struct fc_exch_mgr_anchor *fc_exch_mgr_add(struct fc_lport *,
 					   struct fc_exch_mgr *,
 					   bool (*match)(struct fc_frame *));