Introduce macros to reduce boilerplate in attribute group definitions.
Combine DEFINE_SYSFS_ATTRIBUTE_GROUP_[COMBO]_VISIBILITY() with attribute
definitions in order to simplify group declarations involving visibility
logic.
Signed-off-by: David E. Box <david.e.box@xxxxxxxxxxxxxxx>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
include/linux/sysfs.h | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 00dc88776f21..0804bffd6013 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -303,6 +303,30 @@ static const struct attribute_group _name##_group = { \
}; \
__ATTRIBUTE_GROUPS(_name)
+#define NAMED_ATTRIBUTE_GROUP_VISIBLE(_name) \
+DEFINE_SYSFS_GROUP_VISIBILITY(_name); \
+static const struct attribute_group _name##_group = { \
+ .name = __stringify(_name), \
+ .attrs = _name##_attrs, \
+ .is_visible = SYSFS_GROUP_VISIBLE(_name), \
+}
+
+#define NAMED_ATTRIBUTE_GROUPS_VISIBLE(_name) \
+NAMED_ATTRIBUTE_GROUP_VISIBLE(_name); \
+__ATTRIBUTE_GROUPS(_name)
+
+#define NAMED_ATTRIBUTE_GROUP_COMBO_VISIBLE(_name) \
+DEFINE_SYSFS_GROUP_COMBO_VISIBILITY(_name); \
+static const struct attribute_group _name##_group = { \
+ .name = __stringify(_name), \
+ .attrs = _name##_attrs, \
+ .is_visible = SYSFS_GROUP_VISIBLE(_name), \
+}
+
+#define NAMED_ATTRIBUTE_GROUPS_COMBO_VISIBLE(_name) \
+NAMED_ATTRIBUTE_GROUP_COMBO_VISIBLE(_name); \
+__ATTRIBUTE_GROUPS(_name)
+
struct file;
struct vm_area_struct;
struct address_space;
--
2.43.0
