target: Add export of target_get_sess_cmd symbol

Export target_get_sess_cmd() symbol so that it can be used by
iscsi-target.

Signed-off-by: Nicholas Bellinger <[e-mail]>

drivers/target/target_core_transport.c

···
 static void transport_handle_queue_full(struct se_cmd *cmd,
 		struct se_device *dev);
 static int transport_generic_get_mem(struct se_cmd *cmd);
-static int target_get_sess_cmd(struct se_session *, struct se_cmd *, bool);
 static void transport_put_cmd(struct se_cmd *cmd);
 static void target_complete_ok_work(struct work_struct *work);
 
···
  * @se_cmd:	command descriptor to add
  * @ack_kref:	Signal that fabric will perform an ack target_put_sess_cmd()
  */
-static int target_get_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd,
+int target_get_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd,
 			       bool ack_kref)
 {
 	unsigned long flags;
···
 	spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
 	return ret;
 }
+EXPORT_SYMBOL(target_get_sess_cmd);
 
 static void target_release_cmd_kref(struct kref *kref)
 {

include/target/target_core_fabric.h

···
 int	transport_check_aborted_status(struct se_cmd *, int);
 int	transport_send_check_condition_and_sense(struct se_cmd *,
 		sense_reason_t, int);
-
+int	target_get_sess_cmd(struct se_session *, struct se_cmd *, bool);
 int	target_put_sess_cmd(struct se_session *, struct se_cmd *);
 void	target_sess_cmd_list_set_waiting(struct se_session *);
 void	target_wait_for_sess_cmds(struct se_session *, int);