powerpc: Remove some of the legacy iSeries specific device drivers

These drivers are specific to the PowerPC legacy iSeries platform and
their Kconfig is specified in arch/powerpc.  Legacy iSeries is being
removed, so these drivers can no longer be selected.

Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

drivers/cdrom/viocd.c

-/* -*- linux-c -*-
- *  drivers/cdrom/viocd.c
- *
- *  iSeries Virtual CD Rom
- *
- *  Authors: Dave Boutcher <boutcher@us.ibm.com>
- *           Ryan Arnold <ryanarn@us.ibm.com>
- *           Colin Devilbiss <devilbis@us.ibm.com>
- *           Stephen Rothwell
- *
- * (C) Copyright 2000-2004 IBM Corporation
- *
- * This program is free software;  you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) anyu later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * This routine provides access to CD ROM drives owned and managed by an
- * OS/400 partition running on the same box as this Linux partition.
- *
- * All operations are performed by sending messages back and forth to
- * the OS/400 partition.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/major.h>
-#include <linux/blkdev.h>
-#include <linux/cdrom.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/dma-mapping.h>
-#include <linux/module.h>
-#include <linux/completion.h>
-#include <linux/proc_fs.h>
-#include <linux/mutex.h>
-#include <linux/seq_file.h>
-#include <linux/scatterlist.h>
-
-#include <asm/vio.h>
-#include <asm/iseries/hv_types.h>
-#include <asm/iseries/hv_lp_event.h>
-#include <asm/iseries/vio.h>
-#include <asm/firmware.h>
-
-#define VIOCD_DEVICE			"iseries/vcd"
-
-#define VIOCD_VERS "1.06"
-
-/*
- * Should probably make this a module parameter....sigh
- */
-#define VIOCD_MAX_CD	HVMAXARCHITECTEDVIRTUALCDROMS
-
-static DEFINE_MUTEX(viocd_mutex);
-static const struct vio_error_entry viocd_err_table[] = {
-	{0x0201, EINVAL, "Invalid Range"},
-	{0x0202, EINVAL, "Invalid Token"},
-	{0x0203, EIO, "DMA Error"},
-	{0x0204, EIO, "Use Error"},
-	{0x0205, EIO, "Release Error"},
-	{0x0206, EINVAL, "Invalid CD"},
-	{0x020C, EROFS, "Read Only Device"},
-	{0x020D, ENOMEDIUM, "Changed or Missing Volume (or Varied Off?)"},
-	{0x020E, EIO, "Optical System Error (Varied Off?)"},
-	{0x02FF, EIO, "Internal Error"},
-	{0x3010, EIO, "Changed Volume"},
-	{0xC100, EIO, "Optical System Error"},
-	{0x0000, 0, NULL},
-};
-
-/*
- * This is the structure we use to exchange info between driver and interrupt
- * handler
- */
-struct viocd_waitevent {
-	struct completion	com;
-	int			rc;
-	u16			sub_result;
-	int			changed;
-};
-
-/* this is a lookup table for the true capabilities of a device */
-struct capability_entry {
-	char	*type;
-	int	capability;
-};
-
-static struct capability_entry capability_table[] __initdata = {
-	{ "6330", CDC_LOCK | CDC_DVD_RAM | CDC_RAM },
-	{ "6331", CDC_LOCK | CDC_DVD_RAM | CDC_RAM },
-	{ "6333", CDC_LOCK | CDC_DVD_RAM | CDC_RAM },
-	{ "632A", CDC_LOCK | CDC_DVD_RAM | CDC_RAM },
-	{ "6321", CDC_LOCK },
-	{ "632B", 0 },
-	{ NULL  , CDC_LOCK },
-};
-
-/* These are our internal structures for keeping track of devices */
-static int viocd_numdev;
-
-struct disk_info {
-	struct gendisk			*viocd_disk;
-	struct cdrom_device_info	viocd_info;
-	struct device			*dev;
-	const char			*rsrcname;
-	const char			*type;
-	const char			*model;
-};
-static struct disk_info viocd_diskinfo[VIOCD_MAX_CD];
-
-#define DEVICE_NR(di)	((di) - &viocd_diskinfo[0])
-
-static spinlock_t viocd_reqlock;
-
-#define MAX_CD_REQ	1
-
-/* procfs support */
-static int proc_viocd_show(struct seq_file *m, void *v)
-{
-	int i;
-
-	for (i = 0; i < viocd_numdev; i++) {
-		seq_printf(m, "viocd device %d is iSeries resource %10.10s"
-				"type %4.4s, model %3.3s\n",
-				i, viocd_diskinfo[i].rsrcname,
-				viocd_diskinfo[i].type,
-				viocd_diskinfo[i].model);
-	}
-	return 0;
-}
-
-static int proc_viocd_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, proc_viocd_show, NULL);
-}
-
-static const struct file_operations proc_viocd_operations = {
-	.owner		= THIS_MODULE,
-	.open		= proc_viocd_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-static int viocd_blk_open(struct block_device *bdev, fmode_t mode)
-{
-	struct disk_info *di = bdev->bd_disk->private_data;
-	int ret;
-
-	mutex_lock(&viocd_mutex);
-	ret = cdrom_open(&di->viocd_info, bdev, mode);
-	mutex_unlock(&viocd_mutex);
-
-	return ret;
-}
-
-static int viocd_blk_release(struct gendisk *disk, fmode_t mode)
-{
-	struct disk_info *di = disk->private_data;
-	mutex_lock(&viocd_mutex);
-	cdrom_release(&di->viocd_info, mode);
-	mutex_unlock(&viocd_mutex);
-	return 0;
-}
-
-static int viocd_blk_ioctl(struct block_device *bdev, fmode_t mode,
-		unsigned cmd, unsigned long arg)
-{
-	struct disk_info *di = bdev->bd_disk->private_data;
-	int ret;
-
-	mutex_lock(&viocd_mutex);
-	ret = cdrom_ioctl(&di->viocd_info, bdev, mode, cmd, arg);
-	mutex_unlock(&viocd_mutex);
-
-	return ret;
-}
-
-static unsigned int viocd_blk_check_events(struct gendisk *disk,
-					   unsigned int clearing)
-{
-	struct disk_info *di = disk->private_data;
-	return cdrom_check_events(&di->viocd_info, clearing);
-}
-
-static const struct block_device_operations viocd_fops = {
-	.owner =		THIS_MODULE,
-	.open =			viocd_blk_open,
-	.release =		viocd_blk_release,
-	.ioctl =		viocd_blk_ioctl,
-	.check_events =		viocd_blk_check_events,
-};
-
-static int viocd_open(struct cdrom_device_info *cdi, int purpose)
-{
-        struct disk_info *diskinfo = cdi->handle;
-	int device_no = DEVICE_NR(diskinfo);
-	HvLpEvent_Rc hvrc;
-	struct viocd_waitevent we;
-
-	init_completion(&we.com);
-	hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp,
-			HvLpEvent_Type_VirtualIo,
-			viomajorsubtype_cdio | viocdopen,
-			HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck,
-			viopath_sourceinst(viopath_hostLp),
-			viopath_targetinst(viopath_hostLp),
-			(u64)&we, VIOVERSION << 16, ((u64)device_no << 48),
-			0, 0, 0);
-	if (hvrc != 0) {
-		pr_warning("bad rc on HvCallEvent_signalLpEventFast %d\n",
-			   (int)hvrc);
-		return -EIO;
-	}
-
-	wait_for_completion(&we.com);
-
-	if (we.rc) {
-		const struct vio_error_entry *err =
-			vio_lookup_rc(viocd_err_table, we.sub_result);
-		pr_warning("bad rc %d:0x%04X on open: %s\n",
-			   we.rc, we.sub_result, err->msg);
-		return -err->errno;
-	}
-
-	return 0;
-}
-
-static void viocd_release(struct cdrom_device_info *cdi)
-{
-	int device_no = DEVICE_NR((struct disk_info *)cdi->handle);
-	HvLpEvent_Rc hvrc;
-
-	hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp,
-			HvLpEvent_Type_VirtualIo,
-			viomajorsubtype_cdio | viocdclose,
-			HvLpEvent_AckInd_NoAck, HvLpEvent_AckType_ImmediateAck,
-			viopath_sourceinst(viopath_hostLp),
-			viopath_targetinst(viopath_hostLp), 0,
-			VIOVERSION << 16, ((u64)device_no << 48), 0, 0, 0);
-	if (hvrc != 0)
-		pr_warning("bad rc on HvCallEvent_signalLpEventFast %d\n",
-			   (int)hvrc);
-}
-
-/* Send a read or write request to OS/400 */
-static int send_request(struct request *req)
-{
-	HvLpEvent_Rc hvrc;
-	struct disk_info *diskinfo = req->rq_disk->private_data;
-	u64 len;
-	dma_addr_t dmaaddr;
-	int direction;
-	u16 cmd;
-	struct scatterlist sg;
-
-	BUG_ON(req->nr_phys_segments > 1);
-
-	if (rq_data_dir(req) == READ) {
-		direction = DMA_FROM_DEVICE;
-		cmd = viomajorsubtype_cdio | viocdread;
-	} else {
-		direction = DMA_TO_DEVICE;
-		cmd = viomajorsubtype_cdio | viocdwrite;
-	}
-
-	sg_init_table(&sg, 1);
-        if (blk_rq_map_sg(req->q, req, &sg) == 0) {
-		pr_warning("error setting up scatter/gather list\n");
-		return -1;
-	}
-
-	if (dma_map_sg(diskinfo->dev, &sg, 1, direction) == 0) {
-		pr_warning("error allocating sg tce\n");
-		return -1;
-	}
-	dmaaddr = sg_dma_address(&sg);
-	len = sg_dma_len(&sg);
-
-	hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp,
-			HvLpEvent_Type_VirtualIo, cmd,
-			HvLpEvent_AckInd_DoAck,
-			HvLpEvent_AckType_ImmediateAck,
-			viopath_sourceinst(viopath_hostLp),
-			viopath_targetinst(viopath_hostLp),
-			(u64)req, VIOVERSION << 16,
-			((u64)DEVICE_NR(diskinfo) << 48) | dmaaddr,
-			(u64)blk_rq_pos(req) * 512, len, 0);
-	if (hvrc != HvLpEvent_Rc_Good) {
-		pr_warning("hv error on op %d\n", (int)hvrc);
-		return -1;
-	}
-
-	return 0;
-}
-
-static int rwreq;
-
-static void do_viocd_request(struct request_queue *q)
-{
-	struct request *req;
-
-	while ((rwreq == 0) && ((req = blk_fetch_request(q)) != NULL)) {
-		if (req->cmd_type != REQ_TYPE_FS)
-			__blk_end_request_all(req, -EIO);
-		else if (send_request(req) < 0) {
-			pr_warning("unable to send message to OS/400!\n");
-			__blk_end_request_all(req, -EIO);
-		} else
-			rwreq++;
-	}
-}
-
-static unsigned int viocd_check_events(struct cdrom_device_info *cdi,
-				       unsigned int clearing, int disc_nr)
-{
-	struct viocd_waitevent we;
-	HvLpEvent_Rc hvrc;
-	int device_no = DEVICE_NR((struct disk_info *)cdi->handle);
-
-	init_completion(&we.com);
-
-	/* Send the open event to OS/400 */
-	hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp,
-			HvLpEvent_Type_VirtualIo,
-			viomajorsubtype_cdio | viocdcheck,
-			HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck,
-			viopath_sourceinst(viopath_hostLp),
-			viopath_targetinst(viopath_hostLp),
-			(u64)&we, VIOVERSION << 16, ((u64)device_no << 48),
-			0, 0, 0);
-	if (hvrc != 0) {
-		pr_warning("bad rc on HvCallEvent_signalLpEventFast %d\n",
-			   (int)hvrc);
-		return 0;
-	}
-
-	wait_for_completion(&we.com);
-
-	/* Check the return code.  If bad, assume no change */
-	if (we.rc) {
-		const struct vio_error_entry *err =
-			vio_lookup_rc(viocd_err_table, we.sub_result);
-		pr_warning("bad rc %d:0x%04X on check_change: %s; Assuming no change\n",
-			   we.rc, we.sub_result, err->msg);
-		return 0;
-	}
-
-	return we.changed ? DISK_EVENT_MEDIA_CHANGE : 0;
-}
-
-static int viocd_lock_door(struct cdrom_device_info *cdi, int locking)
-{
-	HvLpEvent_Rc hvrc;
-	u64 device_no = DEVICE_NR((struct disk_info *)cdi->handle);
-	/* NOTE: flags is 1 or 0 so it won't overwrite the device_no */
-	u64 flags = !!locking;
-	struct viocd_waitevent we;
-
-	init_completion(&we.com);
-
-	/* Send the lockdoor event to OS/400 */
-	hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp,
-			HvLpEvent_Type_VirtualIo,
-			viomajorsubtype_cdio | viocdlockdoor,
-			HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck,
-			viopath_sourceinst(viopath_hostLp),
-			viopath_targetinst(viopath_hostLp),
-			(u64)&we, VIOVERSION << 16,
-			(device_no << 48) | (flags << 32), 0, 0, 0);
-	if (hvrc != 0) {
-		pr_warning("bad rc on HvCallEvent_signalLpEventFast %d\n",
-			   (int)hvrc);
-		return -EIO;
-	}
-
-	wait_for_completion(&we.com);
-
-	if (we.rc != 0)
-		return -EIO;
-	return 0;
-}
-
-static int viocd_packet(struct cdrom_device_info *cdi,
-		struct packet_command *cgc)
-{
-	unsigned int buflen = cgc->buflen;
-	int ret = -EIO;
-
-	switch (cgc->cmd[0]) {
-	case GPCMD_READ_DISC_INFO:
-		{
-			disc_information *di = (disc_information *)cgc->buffer;
-
-			if (buflen >= 2) {
-				di->disc_information_length = cpu_to_be16(1);
-				ret = 0;
-			}
-			if (buflen >= 3)
-				di->erasable =
-					(cdi->ops->capability & ~cdi->mask
-					 & (CDC_DVD_RAM | CDC_RAM)) != 0;
-		}
-		break;
-	case GPCMD_GET_CONFIGURATION:
-		if (cgc->cmd[3] == CDF_RWRT) {
-			struct rwrt_feature_desc *rfd = (struct rwrt_feature_desc *)(cgc->buffer + sizeof(struct feature_header));
-
-			if ((buflen >=
-			     (sizeof(struct feature_header) + sizeof(*rfd))) &&
-			    (cdi->ops->capability & ~cdi->mask
-			     & (CDC_DVD_RAM | CDC_RAM))) {
-				rfd->feature_code = cpu_to_be16(CDF_RWRT);
-				rfd->curr = 1;
-				ret = 0;
-			}
-		}
-		break;
-	default:
-		if (cgc->sense) {
-			/* indicate Unknown code */
-			cgc->sense->sense_key = 0x05;
-			cgc->sense->asc = 0x20;
-			cgc->sense->ascq = 0x00;
-		}
-		break;
-	}
-
-	cgc->stat = ret;
-	return ret;
-}
-
-static void restart_all_queues(int first_index)
-{
-	int i;
-
-	for (i = first_index + 1; i < viocd_numdev; i++)
-		if (viocd_diskinfo[i].viocd_disk)
-			blk_run_queue(viocd_diskinfo[i].viocd_disk->queue);
-	for (i = 0; i <= first_index; i++)
-		if (viocd_diskinfo[i].viocd_disk)
-			blk_run_queue(viocd_diskinfo[i].viocd_disk->queue);
-}
-
-/* This routine handles incoming CD LP events */
-static void vio_handle_cd_event(struct HvLpEvent *event)
-{
-	struct viocdlpevent *bevent;
-	struct viocd_waitevent *pwe;
-	struct disk_info *di;
-	unsigned long flags;
-	struct request *req;
-
-
-	if (event == NULL)
-		/* Notification that a partition went away! */
-		return;
-	/* First, we should NEVER get an int here...only acks */
-	if (hvlpevent_is_int(event)) {
-		pr_warning("Yikes! got an int in viocd event handler!\n");
-		if (hvlpevent_need_ack(event)) {
-			event->xRc = HvLpEvent_Rc_InvalidSubtype;
-			HvCallEvent_ackLpEvent(event);
-		}
-	}
-
-	bevent = (struct viocdlpevent *)event;
-
-	switch (event->xSubtype & VIOMINOR_SUBTYPE_MASK) {
-	case viocdopen:
-		if (event->xRc == 0) {
-			di = &viocd_diskinfo[bevent->disk];
-			blk_queue_logical_block_size(di->viocd_disk->queue,
-						     bevent->block_size);
-			set_capacity(di->viocd_disk,
-					bevent->media_size *
-					bevent->block_size / 512);
-		}
-		/* FALLTHROUGH !! */
-	case viocdlockdoor:
-		pwe = (struct viocd_waitevent *)event->xCorrelationToken;
-return_complete:
-		pwe->rc = event->xRc;
-		pwe->sub_result = bevent->sub_result;
-		complete(&pwe->com);
-		break;
-
-	case viocdcheck:
-		pwe = (struct viocd_waitevent *)event->xCorrelationToken;
-		pwe->changed = bevent->flags;
-		goto return_complete;
-
-	case viocdclose:
-		break;
-
-	case viocdwrite:
-	case viocdread:
-		/*
-		 * Since this is running in interrupt mode, we need to
-		 * make sure we're not stepping on any global I/O operations
-		 */
-		di = &viocd_diskinfo[bevent->disk];
-		spin_lock_irqsave(&viocd_reqlock, flags);
-		dma_unmap_single(di->dev, bevent->token, bevent->len,
-				((event->xSubtype & VIOMINOR_SUBTYPE_MASK) == viocdread)
-				?  DMA_FROM_DEVICE : DMA_TO_DEVICE);
-		req = (struct request *)bevent->event.xCorrelationToken;
-		rwreq--;
-
-		if (event->xRc != HvLpEvent_Rc_Good) {
-			const struct vio_error_entry *err =
-				vio_lookup_rc(viocd_err_table,
-						bevent->sub_result);
-			pr_warning("request %p failed with rc %d:0x%04X: %s\n",
-				   req, event->xRc,
-				   bevent->sub_result, err->msg);
-			__blk_end_request_all(req, -EIO);
-		} else
-			__blk_end_request_all(req, 0);
-
-		/* restart handling of incoming requests */
-		spin_unlock_irqrestore(&viocd_reqlock, flags);
-		restart_all_queues(bevent->disk);
-		break;
-
-	default:
-		pr_warning("message with invalid subtype %0x04X!\n",
-			   event->xSubtype & VIOMINOR_SUBTYPE_MASK);
-		if (hvlpevent_need_ack(event)) {
-			event->xRc = HvLpEvent_Rc_InvalidSubtype;
-			HvCallEvent_ackLpEvent(event);
-		}
-	}
-}
-
-static int viocd_audio_ioctl(struct cdrom_device_info *cdi, unsigned int cmd,
-			     void *arg)
-{
-	return -EINVAL;
-}
-
-static struct cdrom_device_ops viocd_dops = {
-	.open = viocd_open,
-	.release = viocd_release,
-	.check_events = viocd_check_events,
-	.lock_door = viocd_lock_door,
-	.generic_packet = viocd_packet,
-	.audio_ioctl = viocd_audio_ioctl,
-	.capability = CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_GENERIC_PACKET | CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_RAM
-};
-
-static int find_capability(const char *type)
-{
-	struct capability_entry *entry;
-
-	for(entry = capability_table; entry->type; ++entry)
-		if(!strncmp(entry->type, type, 4))
-			break;
-	return entry->capability;
-}
-
-static int viocd_probe(struct vio_dev *vdev, const struct vio_device_id *id)
-{
-	struct gendisk *gendisk;
-	int deviceno;
-	struct disk_info *d;
-	struct cdrom_device_info *c;
-	struct request_queue *q;
-	struct device_node *node = vdev->dev.of_node;
-
-	deviceno = vdev->unit_address;
-	if (deviceno >= VIOCD_MAX_CD)
-		return -ENODEV;
-	if (!node)
-		return -ENODEV;
-
-	if (deviceno >= viocd_numdev)
-		viocd_numdev = deviceno + 1;
-
-	d = &viocd_diskinfo[deviceno];
-	d->rsrcname = of_get_property(node, "linux,vio_rsrcname", NULL);
-	d->type = of_get_property(node, "linux,vio_type", NULL);
-	d->model = of_get_property(node, "linux,vio_model", NULL);
-
-	c = &d->viocd_info;
-
-	c->ops = &viocd_dops;
-	c->speed = 4;
-	c->capacity = 1;
-	c->handle = d;
-	c->mask = ~find_capability(d->type);
-	sprintf(c->name, VIOCD_DEVICE "%c", 'a' + deviceno);
-
-	if (register_cdrom(c) != 0) {
-		pr_warning("Cannot register viocd CD-ROM %s!\n", c->name);
-		goto out;
-	}
-	pr_info("cd %s is iSeries resource %10.10s type %4.4s, model %3.3s\n",
-		c->name, d->rsrcname, d->type, d->model);
-	q = blk_init_queue(do_viocd_request, &viocd_reqlock);
-	if (q == NULL) {
-		pr_warning("Cannot allocate queue for %s!\n", c->name);
-		goto out_unregister_cdrom;
-	}
-	gendisk = alloc_disk(1);
-	if (gendisk == NULL) {
-		pr_warning("Cannot create gendisk for %s!\n", c->name);
-		goto out_cleanup_queue;
-	}
-	gendisk->major = VIOCD_MAJOR;
-	gendisk->first_minor = deviceno;
-	strncpy(gendisk->disk_name, c->name,
-			sizeof(gendisk->disk_name));
-	blk_queue_max_segments(q, 1);
-	blk_queue_max_hw_sectors(q, 4096 / 512);
-	gendisk->queue = q;
-	gendisk->fops = &viocd_fops;
-	gendisk->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE |
-			 GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE;
-	set_capacity(gendisk, 0);
-	gendisk->private_data = d;
-	d->viocd_disk = gendisk;
-	d->dev = &vdev->dev;
-	gendisk->driverfs_dev = d->dev;
-	add_disk(gendisk);
-	return 0;
-
-out_cleanup_queue:
-	blk_cleanup_queue(q);
-out_unregister_cdrom:
-	unregister_cdrom(c);
-out:
-	return -ENODEV;
-}
-
-static int viocd_remove(struct vio_dev *vdev)
-{
-	struct disk_info *d = &viocd_diskinfo[vdev->unit_address];
-
-	unregister_cdrom(&d->viocd_info);
-	del_gendisk(d->viocd_disk);
-	blk_cleanup_queue(d->viocd_disk->queue);
-	put_disk(d->viocd_disk);
-	return 0;
-}
-
-/**
- * viocd_device_table: Used by vio.c to match devices that we
- * support.
- */
-static struct vio_device_id viocd_device_table[] __devinitdata = {
-	{ "block", "IBM,iSeries-viocd" },
-	{ "", "" }
-};
-MODULE_DEVICE_TABLE(vio, viocd_device_table);
-
-static struct vio_driver viocd_driver = {
-	.id_table = viocd_device_table,
-	.probe = viocd_probe,
-	.remove = viocd_remove,
-	.driver = {
-		.name = "viocd",
-		.owner = THIS_MODULE,
-	}
-};
-
-static int __init viocd_init(void)
-{
-	int ret = 0;
-
-	if (!firmware_has_feature(FW_FEATURE_ISERIES))
-		return -ENODEV;
-
-	if (viopath_hostLp == HvLpIndexInvalid) {
-		vio_set_hostlp();
-		/* If we don't have a host, bail out */
-		if (viopath_hostLp == HvLpIndexInvalid)
-			return -ENODEV;
-	}
-
-	pr_info("vers " VIOCD_VERS ", hosting partition %d\n", viopath_hostLp);
-
-	if (register_blkdev(VIOCD_MAJOR, VIOCD_DEVICE) != 0) {
-		pr_warning("Unable to get major %d for %s\n",
-			   VIOCD_MAJOR, VIOCD_DEVICE);
-		return -EIO;
-	}
-
-	ret = viopath_open(viopath_hostLp, viomajorsubtype_cdio,
-			MAX_CD_REQ + 2);
-	if (ret) {
-		pr_warning("error opening path to host partition %d\n",
-			   viopath_hostLp);
-		goto out_unregister;
-	}
-
-	/* Initialize our request handler */
-	vio_setHandler(viomajorsubtype_cdio, vio_handle_cd_event);
-
-	spin_lock_init(&viocd_reqlock);
-
-	ret = vio_register_driver(&viocd_driver);
-	if (ret)
-		goto out_free_info;
-
-	proc_create("iSeries/viocd", S_IFREG|S_IRUGO, NULL,
-		    &proc_viocd_operations);
-	return 0;
-
-out_free_info:
-	vio_clearHandler(viomajorsubtype_cdio);
-	viopath_close(viopath_hostLp, viomajorsubtype_cdio, MAX_CD_REQ + 2);
-out_unregister:
-	unregister_blkdev(VIOCD_MAJOR, VIOCD_DEVICE);
-	return ret;
-}
-
-static void __exit viocd_exit(void)
-{
-	remove_proc_entry("iSeries/viocd", NULL);
-	vio_unregister_driver(&viocd_driver);
-	viopath_close(viopath_hostLp, viomajorsubtype_cdio, MAX_CD_REQ + 2);
-	vio_clearHandler(viomajorsubtype_cdio);
-	unregister_blkdev(VIOCD_MAJOR, VIOCD_DEVICE);
-}
-
-module_init(viocd_init);
-module_exit(viocd_exit);
-MODULE_LICENSE("GPL");