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-rw-r--r--include/linux/sysfs.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 786816cf4aa5..5420817ed317 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -196,6 +196,12 @@ struct bin_attribute {
.size = _size, \
}
+#define __BIN_ATTR_WO(_name) { \
+ .attr = { .name = __stringify(_name), .mode = 0200 }, \
+ .store = _name##_store, \
+ .size = _size, \
+}
+
#define __BIN_ATTR_RW(_name, _size) \
__BIN_ATTR(_name, 0644, _name##_read, _name##_write, _size)
@@ -208,6 +214,9 @@ struct bin_attribute bin_attr_##_name = __BIN_ATTR(_name, _mode, _read, \
#define BIN_ATTR_RO(_name, _size) \
struct bin_attribute bin_attr_##_name = __BIN_ATTR_RO(_name, _size)
+#define BIN_ATTR_WO(_name, _size) \
+struct bin_attribute bin_attr_##_name = __BIN_ATTR_WO(_name, _size)
+
#define BIN_ATTR_RW(_name, _size) \
struct bin_attribute bin_attr_##_name = __BIN_ATTR_RW(_name, _size)
@@ -268,6 +277,8 @@ int __must_check sysfs_create_group(struct kobject *kobj,
const struct attribute_group *grp);
int __must_check sysfs_create_groups(struct kobject *kobj,
const struct attribute_group **groups);
+int __must_check sysfs_update_groups(struct kobject *kobj,
+ const struct attribute_group **groups);
int sysfs_update_group(struct kobject *kobj,
const struct attribute_group *grp);
void sysfs_remove_group(struct kobject *kobj,
@@ -433,6 +444,12 @@ static inline int sysfs_create_groups(struct kobject *kobj,
return 0;
}
+static inline int sysfs_update_groups(struct kobject *kobj,
+ const struct attribute_group **groups)
+{
+ return 0;
+}
+
static inline int sysfs_update_group(struct kobject *kobj,
const struct attribute_group *grp)
{