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[S390] cio: Use helpers instead of container_of().

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- Introduce to_cssdriver.
- Use to_xxx instead of container_of where possible.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Cornelia Huck 2008-01-26 14:10:38 +01:00 committed by Martin Schwidefsky
parent 14ff56bbb3
commit 084325d804
3 changed files with 7 additions and 5 deletions
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4
drivers/s390/cio/ccwgroup.c
View File

@ -35,8 +35,8 @@ ccwgroup_bus_match (struct device * dev, struct device_driver * drv)
struct ccwgroup_device *gdev;
struct ccwgroup_driver *gdrv;
gdev = container_of(dev, struct ccwgroup_device, dev);
gdrv = container_of(drv, struct ccwgroup_driver, driver);
gdev = to_ccwgroupdev(dev);
gdrv = to_ccwgroupdrv(drv);
if (gdev->creator_id == gdrv->driver_id)
return 1;

6
drivers/s390/cio/css.c
View File

@ -787,8 +787,8 @@ int sch_is_pseudo_sch(struct subchannel *sch)
static int
css_bus_match (struct device *dev, struct device_driver *drv)
{
struct subchannel *sch = container_of (dev, struct subchannel, dev);
struct css_driver *driver = container_of (drv, struct css_driver, drv);
struct subchannel *sch = to_subchannel(dev);
struct css_driver *driver = to_cssdriver(drv);
if (sch->st == driver->subchannel_type)
return 1;
@ -802,7 +802,7 @@ css_probe (struct device *dev)
struct subchannel *sch;
sch = to_subchannel(dev);
sch->driver = container_of (dev->driver, struct css_driver, drv);
sch->driver = to_cssdriver(dev->driver);
return (sch->driver->probe ? sch->driver->probe(sch) : 0);
}

2
drivers/s390/cio/css.h
View File

@ -134,6 +134,8 @@ struct css_driver {
void (*shutdown)(struct subchannel *);
};
#define to_cssdriver(n) container_of(n, struct css_driver, drv)
/*
* all css_drivers have the css_bus_type
*/