[patch 09/34] cio: Introduce ccw_bus_type.shutdown.

Martin Schwidefsky
2007-10-04T11:41:41Z

[-- Attachment #1: 009-cio-shutdown.diff --]
[-- Type: text/plain, Size: 3453 bytes --]

From: Cornelia Huck <cornelia.huck@de.ibm.com>

Introduce a shutdown method for the ccw bus that calls the driver
specific shutdown method in struct ccw_driver.
Switch zfcp to the new ccw_driver shutdown method.

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

drivers/s390/cio/device.c | 10 ++++++++++
drivers/s390/scsi/zfcp_ccw.c | 10 ++++------
include/asm-s390/ccwdev.h | 2 ++
3 files changed, 16 insertions(+), 6 deletions(-)

Index: quilt-2.6/drivers/s390/cio/device.c
===================================================================
--- quilt-2.6.orig/drivers/s390/cio/device.c
+++ quilt-2.6/drivers/s390/cio/device.c
@@ -1433,12 +1433,22 @@ ccw_device_remove (struct device *dev)
return 0;
}

+static void ccw_device_shutdown(struct device *dev)
+{
+ struct ccw_device *cdev;
+
+ cdev = to_ccwdev(dev);
+ if (cdev->drv && cdev->drv->shutdown)
+ cdev->drv->shutdown(cdev);
+}
+
struct bus_type ccw_bus_type = {
.name = "ccw",
.match = ccw_bus_match,
.uevent = ccw_uevent,
.probe = ccw_device_probe,
.remove = ccw_device_remove,
+ .shutdown = ccw_device_shutdown,
};

/**
Index: quilt-2.6/drivers/s390/scsi/zfcp_ccw.c
===================================================================
--- quilt-2.6.orig/drivers/s390/scsi/zfcp_ccw.c
+++ quilt-2.6/drivers/s390/scsi/zfcp_ccw.c
@@ -28,7 +28,7 @@ static void zfcp_ccw_remove(struct ccw_d
static int zfcp_ccw_set_online(struct ccw_device *);
static int zfcp_ccw_set_offline(struct ccw_device *);
static int zfcp_ccw_notify(struct ccw_device *, int);
-static void zfcp_ccw_shutdown(struct device *);
+static void zfcp_ccw_shutdown(struct ccw_device *);

static struct ccw_device_id zfcp_ccw_device_id[] = {
{CCW_DEVICE_DEVTYPE(ZFCP_CONTROL_UNIT_TYPE,
@@ -51,9 +51,7 @@ static struct ccw_driver zfcp_ccw_driver
.set_online = zfcp_ccw_set_online,
.set_offline = zfcp_ccw_set_offline,
.notify = zfcp_ccw_notify,
- .driver = {
- .shutdown = zfcp_ccw_shutdown,
- },
+ .shutdown = zfcp_ccw_shutdown,
};

MODULE_DEVICE_TABLE(ccw, zfcp_ccw_device_id);
@@ -277,12 +275,12 @@ zfcp_ccw_register(void)
* Makes sure that QDIO queues are down when the system gets stopped.
*/
static void
-zfcp_ccw_shutdown(struct device *dev)
+zfcp_ccw_shutdown(struct ccw_device *cdev)
{
struct zfcp_adapter *adapter;

down(&zfcp_data.config_sema);
- adapter = dev_get_drvdata(dev);
+ adapter = dev_get_drvdata(&cdev->dev);
zfcp_erp_adapter_shutdown(adapter, 0);
zfcp_erp_wait(adapter);
up(&zfcp_data.config_sema);
Index: quilt-2.6/include/asm-s390/ccwdev.h
===================================================================
--- quilt-2.6.orig/include/asm-s390/ccwdev.h
+++ quilt-2.6/include/asm-s390/ccwdev.h
@@ -102,6 +102,7 @@ struct ccw_device {
* @set_online: called when setting device online
* @set_offline: called when setting device offline
* @notify: notify driver of device state changes
+ * @shutdown: called at device shutdown
* @driver: embedded device driver structure
* @name: device driver name
*/
@@ -113,6 +114,7 @@ struct ccw_driver {
int (*set_online) (struct ccw_device *);
int (*set_offline) (struct ccw_device *);
int (*notify) (struct ccw_device *, int);
+ void (*shutdown) (struct ccw_device *);
struct device_driver driver;
char *name;
};