[S390] cio: Remove deprecated rdc/rcd.

http://marc.info/?l=linux-kernel&m=118481061928246&w=2 seems to
indicate disfavour of "deprecated", so let's just kill it now.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

3 files changed, 0 insertions, 271 deletions

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index c175eedadb5f..a43d2878a4ef 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -211,22 +211,6 @@ Who:	Richard Purdie <rpurdie@rpsys.net>
 
 ---------------------------
 
-What:   read_dev_chars(), read_conf_data{,_lpm}() (s390 common I/O layer)
-When:   December 2007
-Why:    These functions are a leftover from 2.4 times. They have several
-        problems:
-        - Duplication of checks that are done in the device driver's
-          interrupt handler
-        - common I/O layer can't do device specific error recovery
-        - device driver can't be notified for conditions happening during
-          execution of the function
-        Device drivers should issue the read device characteristics and read
-        configuration data ccws and do the appropriate error handling
-        themselves.
-Who:    Cornelia Huck <cornelia.huck@de.ibm.com>
-
----------------------------
-
 What:   i2c-ixp2000, i2c-ixp4xx and scx200_i2c drivers
 When:   September 2007
 Why:    Obsolete. The new i2c-gpio driver replaces all hardware-specific
diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index c8cfbf161d44..14eba854b155 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -288,253 +288,6 @@ ccw_device_get_path_mask(struct ccw_device *cdev)
                 return sch->lpm;
 }
 
-static void
-ccw_device_wake_up(struct ccw_device *cdev, unsigned long ip, struct irb *irb)
-{
-        if (!ip)
-                /* unsolicited interrupt */
-                return;
-
-        /* Abuse intparm for error reporting. */
-        if (IS_ERR(irb))
-                cdev->private->intparm = -EIO;
-        else if (irb->scsw.cc == 1)
-                /* Retry for deferred condition code. */
-                cdev->private->intparm = -EAGAIN;
-        else if ((irb->scsw.dstat !=
-                  (DEV_STAT_CHN_END|DEV_STAT_DEV_END)) ||
-                 (irb->scsw.cstat != 0)) {
-                /*
-                 * We didn't get channel end / device end. Check if path
-                 * verification has been started; we can retry after it has
-                 * finished. We also retry unit checks except for command reject
-                 * or intervention required. Also check for long busy
-                 * conditions.
-                 */
-                 if (cdev->private->flags.doverify ||
-                         cdev->private->state == DEV_STATE_VERIFY)
-                         cdev->private->intparm = -EAGAIN;
-                else if ((irb->scsw.dstat & DEV_STAT_UNIT_CHECK) &&
-                         !(irb->ecw[0] &
-                           (SNS0_CMD_REJECT | SNS0_INTERVENTION_REQ)))
-                        cdev->private->intparm = -EAGAIN;
-                else if ((irb->scsw.dstat & DEV_STAT_ATTENTION) &&
-                         (irb->scsw.dstat & DEV_STAT_DEV_END) &&
-                         (irb->scsw.dstat & DEV_STAT_UNIT_EXCEP))
-                        cdev->private->intparm = -EAGAIN;
-                 else
-                         cdev->private->intparm = -EIO;
-                         
-        } else
-                cdev->private->intparm = 0;
-        wake_up(&cdev->private->wait_q);
-}
-
-static int
-__ccw_device_retry_loop(struct ccw_device *cdev, struct ccw1 *ccw, long magic, __u8 lpm)
-{
-        int ret;
-        struct subchannel *sch;
-
-        sch = to_subchannel(cdev->dev.parent);
-        do {
-                ccw_device_set_timeout(cdev, 60 * HZ);
-                ret = cio_start (sch, ccw, lpm);
-                if (ret != 0)
-                        ccw_device_set_timeout(cdev, 0);
-                if (ret == -EBUSY) {
-                        /* Try again later. */
-                        spin_unlock_irq(sch->lock);
-                        msleep(10);
-                        spin_lock_irq(sch->lock);
-                        continue;
-                }
-                if (ret != 0)
-                        /* Non-retryable error. */
-                        break;
-                /* Wait for end of request. */
-                cdev->private->intparm = magic;
-                spin_unlock_irq(sch->lock);
-                wait_event(cdev->private->wait_q,
-                           (cdev->private->intparm == -EIO) ||
-                           (cdev->private->intparm == -EAGAIN) ||
-                           (cdev->private->intparm == 0));
-                spin_lock_irq(sch->lock);
-                /* Check at least for channel end / device end */
-                if (cdev->private->intparm == -EIO) {
-                        /* Non-retryable error. */
-                        ret = -EIO;
-                        break;
-                }
-                if (cdev->private->intparm == 0)
-                        /* Success. */
-                        break;
-                /* Try again later. */
-                spin_unlock_irq(sch->lock);
-                msleep(10);
-                spin_lock_irq(sch->lock);
-        } while (1);
-
-        return ret;
-}
-
-/**
- * read_dev_chars() - read device characteristics
- * @param cdev   target ccw device
- * @param buffer pointer to buffer for rdc data
- * @param length size of rdc data
- * @returns 0 for success, negative error value on failure
- *
- * Context:
- *   called for online device, lock not held
- **/
-int
-read_dev_chars (struct ccw_device *cdev, void **buffer, int length)
-{
-        void (*handler)(struct ccw_device *, unsigned long, struct irb *);
-        struct subchannel *sch;
-        int ret;
-        struct ccw1 *rdc_ccw;
-
-        if (!cdev)
-                return -ENODEV;
-        if (!buffer || !length)
-                return -EINVAL;
-        sch = to_subchannel(cdev->dev.parent);
-
-        CIO_TRACE_EVENT (4, "rddevch");
-        CIO_TRACE_EVENT (4, sch->dev.bus_id);
-
-        rdc_ccw = kzalloc(sizeof(struct ccw1), GFP_KERNEL | GFP_DMA);
-        if (!rdc_ccw)
-                return -ENOMEM;
-        rdc_ccw->cmd_code = CCW_CMD_RDC;
-        rdc_ccw->count = length;
-        rdc_ccw->flags = CCW_FLAG_SLI;
-        ret = set_normalized_cda (rdc_ccw, (*buffer));
-        if (ret != 0) {
-                kfree(rdc_ccw);
-                return ret;
-        }
-
-        spin_lock_irq(sch->lock);
-        /* Save interrupt handler. */
-        handler = cdev->handler;
-        /* Temporarily install own handler. */
-        cdev->handler = ccw_device_wake_up;
-        if (cdev->private->state != DEV_STATE_ONLINE)
-                ret = -ENODEV;
-        else if (((sch->schib.scsw.stctl & SCSW_STCTL_PRIM_STATUS) &&
-                  !(sch->schib.scsw.stctl & SCSW_STCTL_SEC_STATUS)) ||
-                 cdev->private->flags.doverify)
-                ret = -EBUSY;
-        else
-                /* 0x00D9C4C3 == ebcdic "RDC" */
-                ret = __ccw_device_retry_loop(cdev, rdc_ccw, 0x00D9C4C3, 0);
-
-        /* Restore interrupt handler. */
-        cdev->handler = handler;
-        spin_unlock_irq(sch->lock);
-
-        clear_normalized_cda (rdc_ccw);
-        kfree(rdc_ccw);
-
-        return ret;
-}
-
-/*
- *  Read Configuration data using path mask
- */
-int
-read_conf_data_lpm (struct ccw_device *cdev, void **buffer, int *length, __u8 lpm)
-{
-        void (*handler)(struct ccw_device *, unsigned long, struct irb *);
-        struct subchannel *sch;
-        struct ciw *ciw;
-        char *rcd_buf;
-        int ret;
-        struct ccw1 *rcd_ccw;
-
-        if (!cdev)
-                return -ENODEV;
-        if (!buffer || !length)
-                return -EINVAL;
-        sch = to_subchannel(cdev->dev.parent);
-
-        CIO_TRACE_EVENT (4, "rdconf");
-        CIO_TRACE_EVENT (4, sch->dev.bus_id);
-
-        /*
-         * scan for RCD command in extended SenseID data
-         */
-        ciw = ccw_device_get_ciw(cdev, CIW_TYPE_RCD);
-        if (!ciw || ciw->cmd == 0)
-                return -EOPNOTSUPP;
-
-        /* Adjust requested path mask to excluded varied off paths. */
-        if (lpm) {
-                lpm &= sch->opm;
-                if (lpm == 0)
-                        return -EACCES;
-        }
-
-        rcd_ccw = kzalloc(sizeof(struct ccw1), GFP_KERNEL | GFP_DMA);
-        if (!rcd_ccw)
-                return -ENOMEM;
-        rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
-        if (!rcd_buf) {
-                kfree(rcd_ccw);
-                return -ENOMEM;
-        }
-        rcd_ccw->cmd_code = ciw->cmd;
-        rcd_ccw->cda = (__u32) __pa (rcd_buf);
-        rcd_ccw->count = ciw->count;
-        rcd_ccw->flags = CCW_FLAG_SLI;
-
-        spin_lock_irq(sch->lock);
-        /* Save interrupt handler. */
-        handler = cdev->handler;
-        /* Temporarily install own handler. */
-        cdev->handler = ccw_device_wake_up;
-        if (cdev->private->state != DEV_STATE_ONLINE)
-                ret = -ENODEV;
-        else if (((sch->schib.scsw.stctl & SCSW_STCTL_PRIM_STATUS) &&
-                  !(sch->schib.scsw.stctl & SCSW_STCTL_SEC_STATUS)) ||
-                 cdev->private->flags.doverify)
-                ret = -EBUSY;
-        else
-                /* 0x00D9C3C4 == ebcdic "RCD" */
-                ret = __ccw_device_retry_loop(cdev, rcd_ccw, 0x00D9C3C4, lpm);
-
-        /* Restore interrupt handler. */
-        cdev->handler = handler;
-        spin_unlock_irq(sch->lock);
-
-        /*
-         * on success we update the user input parms
-         */
-        if (ret) {
-                kfree (rcd_buf);
-                *buffer = NULL;
-                *length = 0;
-        } else {
-                *length = ciw->count;
-                *buffer = rcd_buf;
-        }
-        kfree(rcd_ccw);
-
-        return ret;
-}
-
-/*
- *  Read Configuration data
- */
-int
-read_conf_data (struct ccw_device *cdev, void **buffer, int *length)
-{
-        return read_conf_data_lpm (cdev, buffer, length, 0);
-}
-
 /*
  * Try to break the lock on a boxed device.
  */
@@ -649,8 +402,5 @@ EXPORT_SYMBOL(ccw_device_start_timeout_key);
 EXPORT_SYMBOL(ccw_device_start_key);
 EXPORT_SYMBOL(ccw_device_get_ciw);
 EXPORT_SYMBOL(ccw_device_get_path_mask);
-EXPORT_SYMBOL(read_conf_data);
-EXPORT_SYMBOL(read_dev_chars);
 EXPORT_SYMBOL(_ccw_device_get_subchannel_number);
 EXPORT_SYMBOL_GPL(ccw_device_get_chp_desc);
-EXPORT_SYMBOL_GPL(read_conf_data_lpm);
diff --git a/include/asm-s390/ccwdev.h b/include/asm-s390/ccwdev.h
index 4c2e1710f157..1aeda27d5a8b 100644
--- a/include/asm-s390/ccwdev.h
+++ b/include/asm-s390/ccwdev.h
@@ -165,11 +165,6 @@ extern int ccw_device_resume(struct ccw_device *);
 extern int ccw_device_halt(struct ccw_device *, unsigned long);
 extern int ccw_device_clear(struct ccw_device *, unsigned long);
 
-extern int __deprecated read_dev_chars(struct ccw_device *cdev, void **buffer, int length);
-extern int __deprecated read_conf_data(struct ccw_device *cdev, void **buffer, int *length);
-extern int __deprecated read_conf_data_lpm(struct ccw_device *cdev, void **buffer,
-                              int *length, __u8 lpm);
-
 extern int ccw_device_set_online(struct ccw_device *cdev);
 extern int ccw_device_set_offline(struct ccw_device *cdev);