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authorSebastian Ott <sebott@linux.vnet.ibm.com>2017-02-15 11:45:07 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2018-05-23 08:06:58 +0200
commita166c368e7dbc84a5d8f013d9fda99f47f9c9f13 (patch)
treec6e16d75453221b62407f766f98120e2d4a28daf /arch/s390
parent199652309a4d6635fca19d7528d73ab9e219bd9a (diff)
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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 'arch/s390')
-rw-r--r--arch/s390/include/asm/ccwgroup.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h
index 99aa817dad32..860cab7479c3 100644
--- a/arch/s390/include/asm/ccwgroup.h
+++ b/arch/s390/include/asm/ccwgroup.h
@@ -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