sysfs.h: add ATTRIBUTE_GROUPS() macro
To make it easier for driver subsystems to work with attribute groups,
create the ATTRIBUTE_GROUPS macro to remove some of the repetitive
typing for the most common use for attribute groups.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 9cd20c8..f62ff01 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -94,6 +94,15 @@
#define __ATTR_IGNORE_LOCKDEP __ATTR
#endif
+#define ATTRIBUTE_GROUPS(name) \
+static const struct attribute_group name##_group = { \
+ .attrs = name##_attrs, \
+}; \
+static const struct attribute_group *name##_groups[] = { \
+ &name##_group, \
+ NULL, \
+}
+
#define attr_name(_attr) (_attr).attr.name
struct file;