1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index 4639419522da..46751bdb71da 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -350,6 +350,8 @@ struct class_attribute {
                         char *buf);
         ssize_t (*store)(struct class *class, struct class_attribute *attr,
                         const char *buf, size_t count);
+        const void *(*namespace)(struct class *class,
+                                 const struct class_attribute *attr);
 };
 
 #define CLASS_ATTR(_name, _mode, _show, _store)                 \