Merge branch 's390-qeth-next'

Julian Wiedmann says:

====================
s390/qeth: updates 2019-02-12

please apply one more round of qeth patches to net-next.
This series targets the driver's control paths. It primarily brings improvements
to the error handling for sent cmds and received responses, along with the
usual cleanup and consolidation efforts.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/s390/net/qeth_core.h

@@ -595,8 +595,8 @@ struct qeth_channel;
 struct qeth_cmd_buffer {
 	enum qeth_cmd_buffer_state state;
 	struct qeth_channel *channel;
+	struct qeth_reply *reply;
 	unsigned char *data;
-	int rc;
 	void (*callback)(struct qeth_card *card, struct qeth_channel *channel,
 			 struct qeth_cmd_buffer *iob);
 };
@@ -1000,13 +1000,11 @@ void qeth_tx_timeout(struct net_device *);
 void qeth_prepare_control_data(struct qeth_card *, int,
 				struct qeth_cmd_buffer *);
 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
-void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob);
+void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
+			  u16 cmd_length);
 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
 int qeth_query_switch_attributes(struct qeth_card *card,
 				  struct qeth_switch_info *sw_info);
-int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
-	int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
-	void *reply_param);
 unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset);
 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
 			struct sk_buff *skb, struct qeth_hdr *hdr,