diff options
| author |   Sebastian Ott <sebott@linux.vnet.ibm.com> | 2017-02-15 11:45:07 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-05-23 08:06:58 +0200 |
| commit | a166c368e7dbc84a5d8f013d9fda99f47f9c9f13 (patch) | |
| tree | c6e16d75453221b62407f766f98120e2d4a28daf /drivers | |
| parent | s390/cio: add helper to query utility strings per given ccw device (diff) | |
| download | linux-dev-a166c368e7dbc84a5d8f013d9fda99f47f9c9f13.tar.xz linux-dev-a166c368e7dbc84a5d8f013d9fda99f47f9c9f13.zip | |
s390/cio: add test for ccwgroup device
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/s390/cio/ccwgroup.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index 5535312602af..db9c854088bc 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -561,6 +561,12 @@ static struct bus_type ccwgroup_bus_type = { .pm = &ccwgroup_pm_ops, }; +bool dev_is_ccwgroup(struct device *dev) +{ + return dev->bus == &ccwgroup_bus_type; +} +EXPORT_SYMBOL(dev_is_ccwgroup); + /** * ccwgroup_driver_register() - register a ccw group driver * @cdriver: driver to be registered |