Merge branch 'timers/urgent' into timers/core

Pick up urgent fixes to apply dependent cleanup patch

10 files changed, 152 insertions, 131 deletions

diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index 62f5f04d8f61..5e963fe0e38d 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -592,13 +592,22 @@ static int _schedule_lcu_update(struct alias_lcu *lcu,
 int dasd_alias_add_device(struct dasd_device *device)
 {
 	struct dasd_eckd_private *private = device->private;
-	struct alias_lcu *lcu;
+	__u8 uaddr = private->uid.real_unit_addr;
+	struct alias_lcu *lcu = private->lcu;
 	unsigned long flags;
 	int rc;
 
-	lcu = private->lcu;
 	rc = 0;
 	spin_lock_irqsave(&lcu->lock, flags);
+	/*
+	 * Check if device and lcu type differ. If so, the uac data may be
+	 * outdated and needs to be updated.
+	 */
+	if (private->uid.type !=  lcu->uac->unit[uaddr].ua_type) {
+		lcu->flags |= UPDATE_PENDING;
+		DBF_DEV_EVENT(DBF_WARNING, device, "%s",
+			      "uid type mismatch - trigger rescan");
+	}
 	if (!(lcu->flags & UPDATE_PENDING)) {
 		rc = _add_device_to_lcu(lcu, device, device);
 		if (rc)
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index f035c2f25d35..131f1989f6f3 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -27,7 +27,6 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/vtoc.h>
-#include <asm/diag.h>
 
 #include "dasd_int.h"
 #include "dasd_diag.h"
diff --git a/drivers/s390/char/sclp_early_core.c b/drivers/s390/char/sclp_early_core.c
index 5f8d9ea69ebd..eceba3858cef 100644
--- a/drivers/s390/char/sclp_early_core.c
+++ b/drivers/s390/char/sclp_early_core.c
@@ -18,7 +18,7 @@ int sclp_init_state __section(.data) = sclp_init_state_uninitialized;
  * Used to keep track of the size of the event masks. Qemu until version 2.11
  * only supports 4 and needs a workaround.
  */
-bool sclp_mask_compat_mode;
+bool sclp_mask_compat_mode __section(.data);
 
 void sclp_early_wait_irq(void)
 {
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 6652a49a49b1..9029804dcd22 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -452,6 +452,7 @@ static void chsc_process_sei_link_incident(struct chsc_sei_nt0_area *sei_area)
 
 static void chsc_process_sei_res_acc(struct chsc_sei_nt0_area *sei_area)
 {
+	struct channel_path *chp;
 	struct chp_link link;
 	struct chp_id chpid;
 	int status;
@@ -464,10 +465,17 @@ static void chsc_process_sei_res_acc(struct chsc_sei_nt0_area *sei_area)
 	chpid.id = sei_area->rsid;
 	/* allocate a new channel path structure, if needed */
 	status = chp_get_status(chpid);
-	if (status < 0)
-		chp_new(chpid);
-	else if (!status)
+	if (!status)
 		return;
+
+	if (status < 0) {
+		chp_new(chpid);
+	} else {
+		chp = chpid_to_chp(chpid);
+		mutex_lock(&chp->lock);
+		chp_update_desc(chp);
+		mutex_unlock(&chp->lock);
+	}
 	memset(&link, 0, sizeof(struct chp_link));
 	link.chpid = chpid;
 	if ((sei_area->vf & 0xc0) != 0) {
diff --git a/drivers/s390/cio/vfio_ccw_fsm.c b/drivers/s390/cio/vfio_ccw_fsm.c
index ff6963ad6e39..3c800642134e 100644
--- a/drivers/s390/cio/vfio_ccw_fsm.c
+++ b/drivers/s390/cio/vfio_ccw_fsm.c
@@ -20,12 +20,12 @@ static int fsm_io_helper(struct vfio_ccw_private *private)
 	int ccode;
 	__u8 lpm;
 	unsigned long flags;
+	int ret;
 
 	sch = private->sch;
 
 	spin_lock_irqsave(sch->lock, flags);
 	private->state = VFIO_CCW_STATE_BUSY;
-	spin_unlock_irqrestore(sch->lock, flags);
 
 	orb = cp_get_orb(&private->cp, (u32)(addr_t)sch, sch->lpm);
 
@@ -38,10 +38,12 @@ static int fsm_io_helper(struct vfio_ccw_private *private)
 		 * Initialize device status information
 		 */
 		sch->schib.scsw.cmd.actl |= SCSW_ACTL_START_PEND;
-		return 0;
+		ret = 0;
+		break;
 	case 1:		/* Status pending */
 	case 2:		/* Busy */
-		return -EBUSY;
+		ret = -EBUSY;
+		break;
 	case 3:		/* Device/path not operational */
 	{
 		lpm = orb->cmd.lpm;
@@ -51,13 +53,16 @@ static int fsm_io_helper(struct vfio_ccw_private *private)
 			sch->lpm = 0;
 
 		if (cio_update_schib(sch))
-			return -ENODEV;
-
-		return sch->lpm ? -EACCES : -ENODEV;
+			ret = -ENODEV;
+		else
+			ret = sch->lpm ? -EACCES : -ENODEV;
+		break;
 	}
 	default:
-		return ccode;
+		ret = ccode;
 	}
+	spin_unlock_irqrestore(sch->lock, flags);
+	return ret;
 }
 
 static void fsm_notoper(struct vfio_ccw_private *private,
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index 4326715dc13e..78b98b3e7efa 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -557,7 +557,6 @@ enum qeth_prot_versions {
 enum qeth_cmd_buffer_state {
 	BUF_STATE_FREE,
 	BUF_STATE_LOCKED,
-	BUF_STATE_PROCESSED,
 };
 
 enum qeth_cq {
@@ -601,7 +600,6 @@ struct qeth_channel {
 	struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
 	atomic_t irq_pending;
 	int io_buf_no;
-	int buf_no;
 };
 
 /**
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index df5d8451a51a..f5a0d894d9ad 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -706,7 +706,6 @@ void qeth_clear_ipacmd_list(struct qeth_card *card)
 		qeth_put_reply(reply);
 	}
 	spin_unlock_irqrestore(&card->lock, flags);
-	atomic_set(&card->write.irq_pending, 0);
 }
 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
 
@@ -818,7 +817,6 @@ void qeth_clear_cmd_buffers(struct qeth_channel *channel)
 
 	for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 		qeth_release_buffer(channel, &channel->iob[cnt]);
-	channel->buf_no = 0;
 	channel->io_buf_no = 0;
 }
 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
@@ -924,7 +922,6 @@ static int qeth_setup_channel(struct qeth_channel *channel)
 			kfree(channel->iob[cnt].data);
 		return -ENOMEM;
 	}
-	channel->buf_no = 0;
 	channel->io_buf_no = 0;
 	atomic_set(&channel->irq_pending, 0);
 	spin_lock_init(&channel->iob_lock);
@@ -1100,16 +1097,9 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 {
 	int rc;
 	int cstat, dstat;
-	struct qeth_cmd_buffer *buffer;
+	struct qeth_cmd_buffer *iob = NULL;
 	struct qeth_channel *channel;
 	struct qeth_card *card;
-	struct qeth_cmd_buffer *iob;
-	__u8 index;
-
-	if (__qeth_check_irb_error(cdev, intparm, irb))
-		return;
-	cstat = irb->scsw.cmd.cstat;
-	dstat = irb->scsw.cmd.dstat;
 
 	card = CARD_FROM_CDEV(cdev);
 	if (!card)
@@ -1127,6 +1117,19 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 		channel = &card->data;
 		QETH_CARD_TEXT(card, 5, "data");
 	}
+
+	if (qeth_intparm_is_iob(intparm))
+		iob = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
+
+	if (__qeth_check_irb_error(cdev, intparm, irb)) {
+		/* IO was terminated, free its resources. */
+		if (iob)
+			qeth_release_buffer(iob->channel, iob);
+		atomic_set(&channel->irq_pending, 0);
+		wake_up(&card->wait_q);
+		return;
+	}
+
 	atomic_set(&channel->irq_pending, 0);
 
 	if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
@@ -1150,6 +1153,10 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 		/* we don't have to handle this further */
 		intparm = 0;
 	}
+
+	cstat = irb->scsw.cmd.cstat;
+	dstat = irb->scsw.cmd.dstat;
+
 	if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 	    (dstat & DEV_STAT_UNIT_CHECK) ||
 	    (cstat)) {
@@ -1182,25 +1189,15 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 		channel->state = CH_STATE_RCD_DONE;
 		goto out;
 	}
-	if (intparm) {
-		buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
-		buffer->state = BUF_STATE_PROCESSED;
-	}
 	if (channel == &card->data)
 		return;
 	if (channel == &card->read &&
 	    channel->state == CH_STATE_UP)
 		__qeth_issue_next_read(card);
 
-	iob = channel->iob;
-	index = channel->buf_no;
-	while (iob[index].state == BUF_STATE_PROCESSED) {
-		if (iob[index].callback != NULL)
-			iob[index].callback(channel, iob + index);
+	if (iob && iob->callback)
+		iob->callback(iob->channel, iob);
 
-		index = (index + 1) % QETH_CMD_BUFFER_NO;
-	}
-	channel->buf_no = index;
 out:
 	wake_up(&card->wait_q);
 	return;
@@ -1870,8 +1867,8 @@ static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
 		   atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
 	QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
 	spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
-	rc = ccw_device_start(channel->ccwdev,
-			      &channel->ccw, (addr_t) iob, 0, 0);
+	rc = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
+				      (addr_t) iob, 0, 0, QETH_TIMEOUT);
 	spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
 
 	if (rc) {
@@ -1888,7 +1885,6 @@ static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
 	if (channel->state != CH_STATE_UP) {
 		rc = -ETIME;
 		QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
-		qeth_clear_cmd_buffers(channel);
 	} else
 		rc = 0;
 	return rc;
@@ -1942,8 +1938,8 @@ static int qeth_idx_activate_channel(struct qeth_channel *channel,
 		   atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
 	QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
 	spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
-	rc = ccw_device_start(channel->ccwdev,
-			      &channel->ccw, (addr_t) iob, 0, 0);
+	rc = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
+				      (addr_t) iob, 0, 0, QETH_TIMEOUT);
 	spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
 
 	if (rc) {
@@ -1964,7 +1960,6 @@ static int qeth_idx_activate_channel(struct qeth_channel *channel,
 		QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
 			dev_name(&channel->ccwdev->dev));
 		QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
-		qeth_clear_cmd_buffers(channel);
 		return -ETIME;
 	}
 	return qeth_idx_activate_get_answer(channel, idx_reply_cb);
@@ -2166,8 +2161,8 @@ int qeth_send_control_data(struct qeth_card *card, int len,
 
 	QETH_CARD_TEXT(card, 6, "noirqpnd");
 	spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
-	rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
-			      (addr_t) iob, 0, 0);
+	rc = ccw_device_start_timeout(CARD_WDEV(card), &card->write.ccw,
+				      (addr_t) iob, 0, 0, event_timeout);
 	spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
 	if (rc) {
 		QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
@@ -2199,8 +2194,6 @@ int qeth_send_control_data(struct qeth_card *card, int len,
 		}
 	}
 
-	if (reply->rc == -EIO)
-		goto error;
 	rc = reply->rc;
 	qeth_put_reply(reply);
 	return rc;
@@ -2211,10 +2204,6 @@ time_err:
 	list_del_init(&reply->list);
 	spin_unlock_irqrestore(&reply->card->lock, flags);
 	atomic_inc(&reply->received);
-error:
-	atomic_set(&card->write.irq_pending, 0);
-	qeth_release_buffer(iob->channel, iob);
-	card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO;
 	rc = reply->rc;
 	qeth_put_reply(reply);
 	return rc;
@@ -3033,28 +3022,23 @@ static int qeth_send_startlan(struct qeth_card *card)
 	return rc;
 }
 
-static int qeth_default_setadapterparms_cb(struct qeth_card *card,
-		struct qeth_reply *reply, unsigned long data)
+static int qeth_setadpparms_inspect_rc(struct qeth_ipa_cmd *cmd)
 {
-	struct qeth_ipa_cmd *cmd;
-
-	QETH_CARD_TEXT(card, 4, "defadpcb");
-
-	cmd = (struct qeth_ipa_cmd *) data;
-	if (cmd->hdr.return_code == 0)
+	if (!cmd->hdr.return_code)
 		cmd->hdr.return_code =
 			cmd->data.setadapterparms.hdr.return_code;
-	return 0;
+	return cmd->hdr.return_code;
 }
 
 static int qeth_query_setadapterparms_cb(struct qeth_card *card,
 		struct qeth_reply *reply, unsigned long data)
 {
-	struct qeth_ipa_cmd *cmd;
+	struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
 
 	QETH_CARD_TEXT(card, 3, "quyadpcb");
+	if (qeth_setadpparms_inspect_rc(cmd))
+		return 0;
 
-	cmd = (struct qeth_ipa_cmd *) data;
 	if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) {
 		card->info.link_type =
 		      cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
@@ -3062,7 +3046,7 @@ static int qeth_query_setadapterparms_cb(struct qeth_card *card,
 	}
 	card->options.adp.supported_funcs =
 		cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
-	return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
+	return 0;
 }
 
 static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
@@ -3154,22 +3138,20 @@ EXPORT_SYMBOL_GPL(qeth_query_ipassists);
 static int qeth_query_switch_attributes_cb(struct qeth_card *card,
 				struct qeth_reply *reply, unsigned long data)
 {
-	struct qeth_ipa_cmd *cmd;
-	struct qeth_switch_info *sw_info;
+	struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
 	struct qeth_query_switch_attributes *attrs;
+	struct qeth_switch_info *sw_info;
 
 	QETH_CARD_TEXT(card, 2, "qswiatcb");
-	cmd = (struct qeth_ipa_cmd *) data;
-	sw_info = (struct qeth_switch_info *)reply->param;
-	if (cmd->data.setadapterparms.hdr.return_code == 0) {
-		attrs = &cmd->data.setadapterparms.data.query_switch_attributes;
-		sw_info->capabilities = attrs->capabilities;
-		sw_info->settings = attrs->settings;
-		QETH_CARD_TEXT_(card, 2, "%04x%04x", sw_info->capabilities,
-							sw_info->settings);
-	}
-	qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
+	if (qeth_setadpparms_inspect_rc(cmd))
+		return 0;
 
+	sw_info = (struct qeth_switch_info *)reply->param;
+	attrs = &cmd->data.setadapterparms.data.query_switch_attributes;
+	sw_info->capabilities = attrs->capabilities;
+	sw_info->settings = attrs->settings;
+	QETH_CARD_TEXT_(card, 2, "%04x%04x", sw_info->capabilities,
+			sw_info->settings);
 	return 0;
 }
 
@@ -4207,16 +4189,13 @@ EXPORT_SYMBOL_GPL(qeth_do_send_packet);
 static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
 		struct qeth_reply *reply, unsigned long data)
 {
-	struct qeth_ipa_cmd *cmd;
+	struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
 	struct qeth_ipacmd_setadpparms *setparms;
 
 	QETH_CARD_TEXT(card, 4, "prmadpcb");
 
-	cmd = (struct qeth_ipa_cmd *) data;
 	setparms = &(cmd->data.setadapterparms);
-
-	qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
-	if (cmd->hdr.return_code) {
+	if (qeth_setadpparms_inspect_rc(cmd)) {
 		QETH_CARD_TEXT_(card, 4, "prmrc%x", cmd->hdr.return_code);
 		setparms->data.mode = SET_PROMISC_MODE_OFF;
 	}
@@ -4286,18 +4265,18 @@ EXPORT_SYMBOL_GPL(qeth_get_stats);
 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
 		struct qeth_reply *reply, unsigned long data)
 {
-	struct qeth_ipa_cmd *cmd;
+	struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
 
 	QETH_CARD_TEXT(card, 4, "chgmaccb");
+	if (qeth_setadpparms_inspect_rc(cmd))
+		return 0;
 
-	cmd = (struct qeth_ipa_cmd *) data;
 	if (!card->options.layer2 ||
 	    !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
 		ether_addr_copy(card->dev->dev_addr,
 				cmd->data.setadapterparms.data.change_addr.addr);
 		card->info.mac_bits |= QETH_LAYER2_MAC_READ;
 	}
-	qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
 	return 0;
 }
 
@@ -4328,13 +4307,15 @@ EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
 		struct qeth_reply *reply, unsigned long data)
 {
-	struct qeth_ipa_cmd *cmd;
+	struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
 	struct qeth_set_access_ctrl *access_ctrl_req;
 	int fallback = *(int *)reply->param;
 
 	QETH_CARD_TEXT(card, 4, "setaccb");
+	if (cmd->hdr.return_code)
+		return 0;
+	qeth_setadpparms_inspect_rc(cmd);
 
-	cmd = (struct qeth_ipa_cmd *) data;
 	access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
 	QETH_DBF_TEXT_(SETUP, 2, "setaccb");
 	QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
@@ -4407,7 +4388,6 @@ static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
 			card->options.isolation = card->options.prev_isolation;
 		break;
 	}
-	qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
 	return 0;
 }
 
@@ -4695,14 +4675,15 @@ out:
 static int qeth_setadpparms_query_oat_cb(struct qeth_card *card,
 		struct qeth_reply *reply, unsigned long data)
 {
-	struct qeth_ipa_cmd *cmd;
+	struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
 	struct qeth_qoat_priv *priv;
 	char *resdata;
 	int resdatalen;
 
 	QETH_CARD_TEXT(card, 3, "qoatcb");
+	if (qeth_setadpparms_inspect_rc(cmd))
+		return 0;
 
-	cmd = (struct qeth_ipa_cmd *)data;
 	priv = (struct qeth_qoat_priv *)reply->param;
 	resdatalen = cmd->data.setadapterparms.hdr.cmdlength;
 	resdata = (char *)data + 28;
@@ -4796,21 +4777,18 @@ out:
 static int qeth_query_card_info_cb(struct qeth_card *card,
 				   struct qeth_reply *reply, unsigned long data)
 {
-	struct qeth_ipa_cmd *cmd;
+	struct carrier_info *carrier_info = (struct carrier_info *)reply->param;
+	struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
 	struct qeth_query_card_info *card_info;
-	struct carrier_info *carrier_info;
 
 	QETH_CARD_TEXT(card, 2, "qcrdincb");
-	carrier_info = (struct carrier_info *)reply->param;
-	cmd = (struct qeth_ipa_cmd *)data;
-	card_info = &cmd->data.setadapterparms.data.card_info;
-	if (cmd->data.setadapterparms.hdr.return_code == 0) {
-		carrier_info->card_type = card_info->card_type;
-		carrier_info->port_mode = card_info->port_mode;
-		carrier_info->port_speed = card_info->port_speed;
-	}
+	if (qeth_setadpparms_inspect_rc(cmd))
+		return 0;
 
-	qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
+	card_info = &cmd->data.setadapterparms.data.card_info;
+	carrier_info->card_type = card_info->card_type;
+	carrier_info->port_mode = card_info->port_mode;
+	carrier_info->port_speed = card_info->port_speed;
 	return 0;
 }
 
@@ -4857,7 +4835,7 @@ int qeth_vm_request_mac(struct qeth_card *card)
 		goto out;
 	}
 
-	ccw_device_get_id(CARD_DDEV(card), &id);
+	ccw_device_get_id(CARD_RDEV(card), &id);
 	request->resp_buf_len = sizeof(*response);
 	request->resp_version = DIAG26C_VERSION2;
 	request->op_code = DIAG26C_GET_MAC;
@@ -6563,10 +6541,14 @@ static int __init qeth_core_init(void)
 	mutex_init(&qeth_mod_mutex);
 
 	qeth_wq = create_singlethread_workqueue("qeth_wq");
+	if (!qeth_wq) {
+		rc = -ENOMEM;
+		goto out_err;
+	}
 
 	rc = qeth_register_dbf_views();
 	if (rc)
-		goto out_err;
+		goto dbf_err;
 	qeth_core_root_dev = root_device_register("qeth");
 	rc = PTR_ERR_OR_ZERO(qeth_core_root_dev);
 	if (rc)
@@ -6603,6 +6585,8 @@ slab_err:
 	root_device_unregister(qeth_core_root_dev);
 register_err:
 	qeth_unregister_dbf_views();
+dbf_err:
+	destroy_workqueue(qeth_wq);
 out_err:
 	pr_err("Initializing the qeth device driver failed\n");
 	return rc;
diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h
index 619f897b4bb0..f4d1ec0b8f5a 100644
--- a/drivers/s390/net/qeth_core_mpc.h
+++ b/drivers/s390/net/qeth_core_mpc.h
@@ -35,6 +35,18 @@ extern unsigned char IPA_PDU_HEADER[];
 #define QETH_HALT_CHANNEL_PARM	-11
 #define QETH_RCD_PARM -12
 
+static inline bool qeth_intparm_is_iob(unsigned long intparm)
+{
+	switch (intparm) {
+	case QETH_CLEAR_CHANNEL_PARM:
+	case QETH_HALT_CHANNEL_PARM:
+	case QETH_RCD_PARM:
+	case 0:
+		return false;
+	}
+	return true;
+}
+
 /*****************************************************************************/
 /* IP Assist related definitions                                             */
 /*****************************************************************************/
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 50a313806dde..b8079f2a65b3 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -21,7 +21,6 @@
 #include <linux/list.h>
 #include <linux/hash.h>
 #include <linux/hashtable.h>
-#include <linux/string.h>
 #include <asm/setup.h>
 #include "qeth_core.h"
 #include "qeth_l2.h"
@@ -122,13 +121,10 @@ static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
 	QETH_CARD_TEXT(card, 2, "L2Setmac");
 	rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC);
 	if (rc == 0) {
-		card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
-		ether_addr_copy(card->dev->dev_addr, mac);
 		dev_info(&card->gdev->dev,
-			"MAC address %pM successfully registered on device %s\n",
-			card->dev->dev_addr, card->dev->name);
+			 "MAC address %pM successfully registered on device %s\n",
+			 mac, card->dev->name);
 	} else {
-		card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
 		switch (rc) {
 		case -EEXIST:
 			dev_warn(&card->gdev->dev,
@@ -143,19 +139,6 @@ static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
 	return rc;
 }
 
-static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac)
-{
-	int rc;
-
-	QETH_CARD_TEXT(card, 2, "L2Delmac");
-	if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
-		return 0;
-	rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC);
-	if (rc == 0)
-		card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
-	return rc;
-}
-
 static int qeth_l2_write_mac(struct qeth_card *card, u8 *mac)
 {
 	enum qeth_ipa_cmds cmd = is_multicast_ether_addr_64bits(mac) ?
@@ -520,6 +503,7 @@ static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
 {
 	struct sockaddr *addr = p;
 	struct qeth_card *card = dev->ml_priv;
+	u8 old_addr[ETH_ALEN];
 	int rc = 0;
 
 	QETH_CARD_TEXT(card, 3, "setmac");
@@ -531,14 +515,35 @@ static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
 		return -EOPNOTSUPP;
 	}
 	QETH_CARD_HEX(card, 3, addr->sa_data, ETH_ALEN);
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+
 	if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
 		QETH_CARD_TEXT(card, 3, "setmcREC");
 		return -ERESTARTSYS;
 	}
-	rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]);
-	if (!rc || (rc == -ENOENT))
-		rc = qeth_l2_send_setmac(card, addr->sa_data);
-	return rc ? -EINVAL : 0;
+
+	if (!qeth_card_hw_is_reachable(card)) {
+		ether_addr_copy(dev->dev_addr, addr->sa_data);
+		return 0;
+	}
+
+	/* don't register the same address twice */
+	if (ether_addr_equal_64bits(dev->dev_addr, addr->sa_data) &&
+	    (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
+		return 0;
+
+	/* add the new address, switch over, drop the old */
+	rc = qeth_l2_send_setmac(card, addr->sa_data);
+	if (rc)
+		return rc;
+	ether_addr_copy(old_addr, dev->dev_addr);
+	ether_addr_copy(dev->dev_addr, addr->sa_data);
+
+	if (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)
+		qeth_l2_remove_mac(card, old_addr);
+	card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
+	return 0;
 }
 
 static void qeth_promisc_to_bridge(struct qeth_card *card)
@@ -1068,8 +1073,9 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 		goto out_remove;
 	}
 
-	if (card->info.type != QETH_CARD_TYPE_OSN)
-		qeth_l2_send_setmac(card, &card->dev->dev_addr[0]);
+	if (card->info.type != QETH_CARD_TYPE_OSN &&
+	    !qeth_l2_send_setmac(card, card->dev->dev_addr))
+		card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
 
 	if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
 		if (card->info.hwtrap &&
@@ -1339,8 +1345,8 @@ static int qeth_osn_send_control_data(struct qeth_card *card, int len,
 	qeth_prepare_control_data(card, len, iob);
 	QETH_CARD_TEXT(card, 6, "osnoirqp");
 	spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
-	rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
-			      (addr_t) iob, 0, 0);
+	rc = ccw_device_start_timeout(CARD_WDEV(card), &card->write.ccw,
+				      (addr_t) iob, 0, 0, QETH_IPA_TIMEOUT);
 	spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
 	if (rc) {
 		QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
diff --git a/drivers/s390/net/smsgiucv.c b/drivers/s390/net/smsgiucv.c
index 3b0c8b8a7634..066b5c3aaae6 100644
--- a/drivers/s390/net/smsgiucv.c
+++ b/drivers/s390/net/smsgiucv.c
@@ -176,7 +176,7 @@ static struct device_driver smsg_driver = {
 
 static void __exit smsg_exit(void)
 {
-	cpcmd("SET SMSG IUCV", NULL, 0, NULL);
+	cpcmd("SET SMSG OFF", NULL, 0, NULL);
 	device_unregister(smsg_dev);
 	iucv_unregister(&smsg_handler, 1);
 	driver_unregister(&smsg_driver);