From a166c368e7dbc84a5d8f013d9fda99f47f9c9f13 Mon Sep 17 00:00:00 2001 From: Sebastian Ott Date: Wed, 15 Feb 2017 11:45:07 +0100 Subject: 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 Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/ccwgroup.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') 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 -- cgit