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-rw-r--r--drivers/s390/cio/blacklist.c5
-rw-r--r--drivers/s390/cio/ccwgroup.c28
-rw-r--r--drivers/s390/cio/chsc_sch.c3
-rw-r--r--drivers/s390/cio/css.c7
-rw-r--r--drivers/s390/cio/css.h2
-rw-r--r--drivers/s390/cio/device.c30
-rw-r--r--drivers/s390/cio/device_id.c2
-rw-r--r--drivers/s390/cio/eadm_sch.c4
-rw-r--r--drivers/s390/cio/scm.c5
-rw-r--r--drivers/s390/cio/vfio_ccw_drv.c3
-rw-r--r--drivers/s390/cio/vfio_ccw_ops.c8
11 files changed, 27 insertions, 70 deletions
diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c
index 4dd2eb634856..f3c656975e05 100644
--- a/drivers/s390/cio/blacklist.c
+++ b/drivers/s390/cio/blacklist.c
@@ -262,7 +262,10 @@ static int blacklist_parse_proc_parameters(char *buf)
if (strcmp("free", parm) == 0) {
rc = blacklist_parse_parameters(buf, free, 0);
- css_schedule_eval_all_unreg(0);
+ /* There could be subchannels without proper devices connected.
+ * evaluate all the entries
+ */
+ css_schedule_eval_all();
} else if (strcmp("add", parm) == 0)
rc = blacklist_parse_parameters(buf, add, 0);
else if (strcmp("purge", parm) == 0)
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index 9748165e08e9..2ec741106cb6 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -439,17 +439,13 @@ module_exit(cleanup_ccwgroup);
/************************** driver stuff ******************************/
-static int ccwgroup_remove(struct device *dev)
+static void ccwgroup_remove(struct device *dev)
{
struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
struct ccwgroup_driver *gdrv = to_ccwgroupdrv(dev->driver);
- if (!dev->driver)
- return 0;
if (gdrv->remove)
gdrv->remove(gdev);
-
- return 0;
}
static void ccwgroup_shutdown(struct device *dev)
@@ -504,28 +500,6 @@ void ccwgroup_driver_unregister(struct ccwgroup_driver *cdriver)
EXPORT_SYMBOL(ccwgroup_driver_unregister);
/**
- * get_ccwgroupdev_by_busid() - obtain device from a bus id
- * @gdrv: driver the device is owned by
- * @bus_id: bus id of the device to be searched
- *
- * This function searches all devices owned by @gdrv for a device with a bus
- * id matching @bus_id.
- * Returns:
- * If a match is found, its reference count of the found device is increased
- * and it is returned; else %NULL is returned.
- */
-struct ccwgroup_device *get_ccwgroupdev_by_busid(struct ccwgroup_driver *gdrv,
- char *bus_id)
-{
- struct device *dev;
-
- dev = driver_find_device_by_name(&gdrv->driver, bus_id);
-
- return dev ? to_ccwgroupdev(dev) : NULL;
-}
-EXPORT_SYMBOL_GPL(get_ccwgroupdev_by_busid);
-
-/**
* ccwgroup_probe_ccwdev() - probe function for slave devices
* @cdev: ccw device to be probed
*
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index c42405c620b5..684348d82f08 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -100,7 +100,7 @@ static int chsc_subchannel_probe(struct subchannel *sch)
return ret;
}
-static int chsc_subchannel_remove(struct subchannel *sch)
+static void chsc_subchannel_remove(struct subchannel *sch)
{
struct chsc_private *private;
@@ -112,7 +112,6 @@ static int chsc_subchannel_remove(struct subchannel *sch)
put_device(&sch->dev);
}
kfree(private);
- return 0;
}
static void chsc_subchannel_shutdown(struct subchannel *sch)
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 0ce48a354e04..3377097e65de 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -1401,15 +1401,14 @@ static int css_probe(struct device *dev)
return ret;
}
-static int css_remove(struct device *dev)
+static void css_remove(struct device *dev)
{
struct subchannel *sch;
- int ret;
sch = to_subchannel(dev);
- ret = sch->driver->remove ? sch->driver->remove(sch) : 0;
+ if (sch->driver->remove)
+ sch->driver->remove(sch);
sch->driver = NULL;
- return ret;
}
static void css_shutdown(struct device *dev)
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index 2eddfc47f687..c98522cbe276 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -81,7 +81,7 @@ struct css_driver {
int (*chp_event)(struct subchannel *, struct chp_link *, int);
int (*sch_event)(struct subchannel *, int);
int (*probe)(struct subchannel *);
- int (*remove)(struct subchannel *);
+ void (*remove)(struct subchannel *);
void (*shutdown)(struct subchannel *);
int (*settle)(void);
};
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 84f659cafe76..8d14569823d7 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -137,7 +137,7 @@ static int ccw_uevent(struct device *dev, struct kobj_uevent_env *env)
static void io_subchannel_irq(struct subchannel *);
static int io_subchannel_probe(struct subchannel *);
-static int io_subchannel_remove(struct subchannel *);
+static void io_subchannel_remove(struct subchannel *);
static void io_subchannel_shutdown(struct subchannel *);
static int io_subchannel_sch_event(struct subchannel *, int);
static int io_subchannel_chp_event(struct subchannel *, struct chp_link *,
@@ -867,19 +867,6 @@ out_err:
wake_up(&ccw_device_init_wq);
}
-static void ccw_device_call_sch_unregister(struct ccw_device *cdev)
-{
- struct subchannel *sch;
-
- /* Get subchannel reference for local processing. */
- if (!get_device(cdev->dev.parent))
- return;
- sch = to_subchannel(cdev->dev.parent);
- css_sch_device_unregister(sch);
- /* Release subchannel reference for local processing. */
- put_device(&sch->dev);
-}
-
/*
* subchannel recognition done. Called from the state machine.
*/
@@ -1101,7 +1088,7 @@ out_schedule:
return 0;
}
-static int io_subchannel_remove(struct subchannel *sch)
+static void io_subchannel_remove(struct subchannel *sch)
{
struct io_subchannel_private *io_priv = to_io_private(sch);
struct ccw_device *cdev;
@@ -1120,7 +1107,6 @@ out_free:
io_priv->dma_area, io_priv->dma_area_dma);
kfree(io_priv);
sysfs_remove_group(&sch->dev.kobj, &io_subchannel_attr_group);
- return 0;
}
static void io_subchannel_verify(struct subchannel *sch)
@@ -1742,7 +1728,7 @@ ccw_device_probe (struct device *dev)
return 0;
}
-static int ccw_device_remove(struct device *dev)
+static void ccw_device_remove(struct device *dev)
{
struct ccw_device *cdev = to_ccwdev(dev);
struct ccw_driver *cdrv = cdev->drv;
@@ -1776,8 +1762,6 @@ static int ccw_device_remove(struct device *dev)
spin_unlock_irq(cdev->ccwlock);
io_subchannel_quiesce(sch);
__disable_cmf(cdev);
-
- return 0;
}
static void ccw_device_shutdown(struct device *dev)
@@ -1860,10 +1844,10 @@ static void ccw_device_todo(struct work_struct *work)
css_schedule_eval(sch->schid);
fallthrough;
case CDEV_TODO_UNREG:
- if (sch_is_pseudo_sch(sch))
- ccw_device_unregister(cdev);
- else
- ccw_device_call_sch_unregister(cdev);
+ spin_lock_irq(sch->lock);
+ sch_set_cdev(sch, NULL);
+ spin_unlock_irq(sch->lock);
+ ccw_device_unregister(cdev);
break;
default:
break;
diff --git a/drivers/s390/cio/device_id.c b/drivers/s390/cio/device_id.c
index 740996d0dc8c..7835a87a60b5 100644
--- a/drivers/s390/cio/device_id.c
+++ b/drivers/s390/cio/device_id.c
@@ -91,7 +91,7 @@ static int diag210_to_senseid(struct senseid *senseid, struct diag210 *diag)
}
/**
- * diag_get_dev_info - retrieve device information via diag 0x210
+ * diag210_get_dev_info - retrieve device information via diag 0x210
* @cdev: ccw device
*
* Returns zero on success, non-zero otherwise.
diff --git a/drivers/s390/cio/eadm_sch.c b/drivers/s390/cio/eadm_sch.c
index c8964e0a23e7..15bdae5981ca 100644
--- a/drivers/s390/cio/eadm_sch.c
+++ b/drivers/s390/cio/eadm_sch.c
@@ -282,7 +282,7 @@ disable:
spin_unlock_irq(sch->lock);
}
-static int eadm_subchannel_remove(struct subchannel *sch)
+static void eadm_subchannel_remove(struct subchannel *sch)
{
struct eadm_private *private = get_eadm_private(sch);
@@ -297,8 +297,6 @@ static int eadm_subchannel_remove(struct subchannel *sch)
spin_unlock_irq(sch->lock);
kfree(private);
-
- return 0;
}
static void eadm_subchannel_shutdown(struct subchannel *sch)
diff --git a/drivers/s390/cio/scm.c b/drivers/s390/cio/scm.c
index 9f26d4310bb3..b6b4589c70bd 100644
--- a/drivers/s390/cio/scm.c
+++ b/drivers/s390/cio/scm.c
@@ -28,12 +28,13 @@ static int scmdev_probe(struct device *dev)
return scmdrv->probe ? scmdrv->probe(scmdev) : -ENODEV;
}
-static int scmdev_remove(struct device *dev)
+static void scmdev_remove(struct device *dev)
{
struct scm_device *scmdev = to_scm_dev(dev);
struct scm_driver *scmdrv = to_scm_drv(dev->driver);
- return scmdrv->remove ? scmdrv->remove(scmdev) : -ENODEV;
+ if (scmdrv->remove)
+ scmdrv->remove(scmdev);
}
static int scmdev_uevent(struct device *dev, struct kobj_uevent_env *env)
diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c
index 9b61e9b131ad..76099bcb765b 100644
--- a/drivers/s390/cio/vfio_ccw_drv.c
+++ b/drivers/s390/cio/vfio_ccw_drv.c
@@ -234,7 +234,7 @@ out_free:
return ret;
}
-static int vfio_ccw_sch_remove(struct subchannel *sch)
+static void vfio_ccw_sch_remove(struct subchannel *sch)
{
struct vfio_ccw_private *private = dev_get_drvdata(&sch->dev);
struct vfio_ccw_crw *crw, *temp;
@@ -257,7 +257,6 @@ static int vfio_ccw_sch_remove(struct subchannel *sch)
VFIO_CCW_MSG_EVENT(4, "unbound from subchannel %x.%x.%04x\n",
sch->schid.cssid, sch->schid.ssid,
sch->schid.sch_no);
- return 0;
}
static void vfio_ccw_sch_shutdown(struct subchannel *sch)
diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c
index c57d2a7f0919..7f540ad0b568 100644
--- a/drivers/s390/cio/vfio_ccw_ops.c
+++ b/drivers/s390/cio/vfio_ccw_ops.c
@@ -159,7 +159,7 @@ static int vfio_ccw_mdev_remove(struct mdev_device *mdev)
return 0;
}
-static int vfio_ccw_mdev_open(struct mdev_device *mdev)
+static int vfio_ccw_mdev_open_device(struct mdev_device *mdev)
{
struct vfio_ccw_private *private =
dev_get_drvdata(mdev_parent_dev(mdev));
@@ -194,7 +194,7 @@ out_unregister:
return ret;
}
-static void vfio_ccw_mdev_release(struct mdev_device *mdev)
+static void vfio_ccw_mdev_close_device(struct mdev_device *mdev)
{
struct vfio_ccw_private *private =
dev_get_drvdata(mdev_parent_dev(mdev));
@@ -638,8 +638,8 @@ static const struct mdev_parent_ops vfio_ccw_mdev_ops = {
.supported_type_groups = mdev_type_groups,
.create = vfio_ccw_mdev_create,
.remove = vfio_ccw_mdev_remove,
- .open = vfio_ccw_mdev_open,
- .release = vfio_ccw_mdev_release,
+ .open_device = vfio_ccw_mdev_open_device,
+ .close_device = vfio_ccw_mdev_close_device,
.read = vfio_ccw_mdev_read,
.write = vfio_ccw_mdev_write,
.ioctl = vfio_ccw_mdev_ioctl,
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