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path: root/drivers/s390/cio/device.c
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Diffstat (limited to 'drivers/s390/cio/device.c')
-rw-r--r--drivers/s390/cio/device.c50
1 files changed, 24 insertions, 26 deletions
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index fa3e4c0..eb73605 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -107,33 +107,29 @@ ccw_uevent (struct device *dev, char **envp, int num_envp,
return 0;
}
-struct bus_type ccw_bus_type = {
- .name = "ccw",
- .match = &ccw_bus_match,
- .uevent = &ccw_uevent,
-};
+struct bus_type ccw_bus_type;
-static int io_subchannel_probe (struct device *);
-static int io_subchannel_remove (struct device *);
+static int io_subchannel_probe (struct subchannel *);
+static int io_subchannel_remove (struct subchannel *);
void io_subchannel_irq (struct device *);
static int io_subchannel_notify(struct device *, int);
static void io_subchannel_verify(struct device *);
static void io_subchannel_ioterm(struct device *);
-static void io_subchannel_shutdown(struct device *);
+static void io_subchannel_shutdown(struct subchannel *);
struct css_driver io_subchannel_driver = {
.subchannel_type = SUBCHANNEL_TYPE_IO,
.drv = {
.name = "io_subchannel",
.bus = &css_bus_type,
- .probe = &io_subchannel_probe,
- .remove = &io_subchannel_remove,
- .shutdown = &io_subchannel_shutdown,
},
.irq = io_subchannel_irq,
.notify = io_subchannel_notify,
.verify = io_subchannel_verify,
.termination = io_subchannel_ioterm,
+ .probe = io_subchannel_probe,
+ .remove = io_subchannel_remove,
+ .shutdown = io_subchannel_shutdown,
};
struct workqueue_struct *ccw_device_work;
@@ -803,14 +799,12 @@ io_subchannel_recog(struct ccw_device *cdev, struct subchannel *sch)
}
static int
-io_subchannel_probe (struct device *pdev)
+io_subchannel_probe (struct subchannel *sch)
{
- struct subchannel *sch;
struct ccw_device *cdev;
int rc;
unsigned long flags;
- sch = to_subchannel(pdev);
if (sch->dev.driver_data) {
/*
* This subchannel already has an associated ccw_device.
@@ -846,7 +840,7 @@ io_subchannel_probe (struct device *pdev)
memset(cdev->private, 0, sizeof(struct ccw_device_private));
atomic_set(&cdev->private->onoff, 0);
cdev->dev = (struct device) {
- .parent = pdev,
+ .parent = &sch->dev,
.release = ccw_device_release,
};
INIT_LIST_HEAD(&cdev->private->kick_work.entry);
@@ -859,7 +853,7 @@ io_subchannel_probe (struct device *pdev)
return -ENODEV;
}
- rc = io_subchannel_recog(cdev, to_subchannel(pdev));
+ rc = io_subchannel_recog(cdev, sch);
if (rc) {
spin_lock_irqsave(&sch->lock, flags);
sch->dev.driver_data = NULL;
@@ -883,17 +877,17 @@ ccw_device_unregister(void *data)
}
static int
-io_subchannel_remove (struct device *dev)
+io_subchannel_remove (struct subchannel *sch)
{
struct ccw_device *cdev;
unsigned long flags;
- if (!dev->driver_data)
+ if (!sch->dev.driver_data)
return 0;
- cdev = dev->driver_data;
+ cdev = sch->dev.driver_data;
/* Set ccw device to not operational and drop reference. */
spin_lock_irqsave(cdev->ccwlock, flags);
- dev->driver_data = NULL;
+ sch->dev.driver_data = NULL;
cdev->private->state = DEV_STATE_NOT_OPER;
spin_unlock_irqrestore(cdev->ccwlock, flags);
/*
@@ -948,14 +942,12 @@ io_subchannel_ioterm(struct device *dev)
}
static void
-io_subchannel_shutdown(struct device *dev)
+io_subchannel_shutdown(struct subchannel *sch)
{
- struct subchannel *sch;
struct ccw_device *cdev;
int ret;
- sch = to_subchannel(dev);
- cdev = dev->driver_data;
+ cdev = sch->dev.driver_data;
if (cio_is_console(sch->schid))
return;
@@ -1129,6 +1121,14 @@ ccw_device_remove (struct device *dev)
return 0;
}
+struct bus_type ccw_bus_type = {
+ .name = "ccw",
+ .match = ccw_bus_match,
+ .uevent = ccw_uevent,
+ .probe = ccw_device_probe,
+ .remove = ccw_device_remove,
+};
+
int
ccw_driver_register (struct ccw_driver *cdriver)
{
@@ -1136,8 +1136,6 @@ ccw_driver_register (struct ccw_driver *cdriver)
drv->bus = &ccw_bus_type;
drv->name = cdriver->name;
- drv->probe = ccw_device_probe;
- drv->remove = ccw_device_remove;
return driver_register(drv);
}