diff --git a/kernel/capability.c b/kernel/capability.c
index 3e058f41df32..1a2795102ae4 100644
--- a/kernel/capability.c
+++ b/kernel/capability.c
@@ -467,6 +467,7 @@ EXPORT_SYMBOL(file_ns_capable);
 /**
  * privileged_wrt_inode_uidgid - Do capabilities in the namespace work over the inode?
  * @ns: The user namespace in question
+ * @idmap: idmap of the mount @inode was found from
  * @inode: The inode in question
  *
  * Return true if the inode uid and gid are within the namespace.
@@ -481,6 +482,7 @@ bool privileged_wrt_inode_uidgid(struct user_namespace *ns,
 
 /**
  * capable_wrt_inode_uidgid - Check nsown_capable and uid and gid mapped
+ * @idmap: idmap of the mount @inode was found from
  * @inode: The inode in question
  * @cap: The capability in question
  *