diff options
author | Cornelia Huck <cornelia.huck@de.ibm.com> | 2008-01-26 14:10:41 +0100 |
---|---|---|
committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-01-26 14:10:58 +0100 |
commit | 25b7bb5838ab81b68a9de72df577103d8b4aba3c (patch) | |
tree | ccbef7d152370e7a770788c103776af0fbe7fc47 /drivers/s390/cio | |
parent | 98c13c283a4e8b7f844f1f470abd7c756248fcc4 (diff) | |
download | op-kernel-dev-25b7bb5838ab81b68a9de72df577103d8b4aba3c.zip op-kernel-dev-25b7bb5838ab81b68a9de72df577103d8b4aba3c.tar.gz |
[S390] cio: Add css_driver_{register,unregister}.
Add wrapper functions for driver_register and driver_unregister so
that css drivers don't need to muck with struct device_driver
directly.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio')
-rw-r--r-- | drivers/s390/cio/css.c | 27 | ||||
-rw-r--r-- | drivers/s390/cio/css.h | 4 | ||||
-rw-r--r-- | drivers/s390/cio/device.c | 10 |
3 files changed, 35 insertions, 6 deletions
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index f558686..7d887f8 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -837,6 +837,33 @@ struct bus_type css_bus_type = { .shutdown = css_shutdown, }; +/** + * css_driver_register - register a css driver + * @cdrv: css driver to register + * + * This is mainly a wrapper around driver_register that sets name + * and bus_type in the embedded struct device_driver correctly. + */ +int css_driver_register(struct css_driver *cdrv) +{ + cdrv->drv.name = cdrv->name; + cdrv->drv.bus = &css_bus_type; + return driver_register(&cdrv->drv); +} +EXPORT_SYMBOL_GPL(css_driver_register); + +/** + * css_driver_unregister - unregister a css driver + * @cdrv: css driver to unregister + * + * This is a wrapper around driver_unregister. + */ +void css_driver_unregister(struct css_driver *cdrv) +{ + driver_unregister(&cdrv->drv); +} +EXPORT_SYMBOL_GPL(css_driver_unregister); + subsys_initcall(init_channel_subsystem); MODULE_LICENSE("GPL"); diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index 32acd24..c9fd600 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -132,6 +132,7 @@ struct css_driver { int (*probe)(struct subchannel *); int (*remove)(struct subchannel *); void (*shutdown)(struct subchannel *); + const char *name; }; #define to_cssdriver(n) container_of(n, struct css_driver, drv) @@ -141,6 +142,9 @@ struct css_driver { */ extern struct bus_type css_bus_type; +extern int css_driver_register(struct css_driver *); +extern void css_driver_unregister(struct css_driver *); + extern void css_sch_device_unregister(struct subchannel *); extern struct subchannel * get_subchannel_by_schid(struct subchannel_id); extern int css_init_done; diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 000c641..7bccca9 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -125,10 +125,7 @@ static void io_subchannel_shutdown(struct subchannel *); static struct css_driver io_subchannel_driver = { .subchannel_type = SUBCHANNEL_TYPE_IO, - .drv = { - .name = "io_subchannel", - .bus = &css_bus_type, - }, + .name = "io_subchannel", .irq = io_subchannel_irq, .notify = io_subchannel_notify, .verify = io_subchannel_verify, @@ -167,7 +164,8 @@ init_ccw_bus_type (void) if ((ret = bus_register (&ccw_bus_type))) goto out_err; - if ((ret = driver_register(&io_subchannel_driver.drv))) + ret = css_driver_register(&io_subchannel_driver); + if (ret) goto out_err; wait_event(ccw_device_init_wq, @@ -187,7 +185,7 @@ out_err: static void __exit cleanup_ccw_bus_type (void) { - driver_unregister(&io_subchannel_driver.drv); + css_driver_unregister(&io_subchannel_driver); bus_unregister(&ccw_bus_type); destroy_workqueue(ccw_device_notify_work); destroy_workqueue(ccw_device_work); |