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s390/cio: add test for ccwgroup device

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Add a test to check if a given device is a ccwgroup device.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott
2017-02-15 11:45:07 +01:00
committed by Martin Schwidefsky
parent 199652309a
commit a166c368e7
2 changed files with 16 additions and 0 deletions
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10
arch/s390/include/asm/ccwgroup.h
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@@ -73,4 +73,14 @@ extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev);
#define to_ccwgroupdev(x) container_of((x), struct ccwgroup_device, dev)
#define to_ccwgroupdrv(x) container_of((x), struct ccwgroup_driver, driver)
#if IS_ENABLED(CONFIG_CCWGROUP)
bool dev_is_ccwgroup(struct device *dev);
#else /* CONFIG_CCWGROUP */
static inline bool dev_is_ccwgroup(struct device *dev)
{
return false;
}
#endif /* CONFIG_CCWGROUP */
#endif