diff --git a/Documentation/oops-tracing.txt b/Documentation/oops-tracing.txt
index 2503404..ea55ea8 100644
--- a/Documentation/oops-tracing.txt
+++ b/Documentation/oops-tracing.txt
@@ -234,6 +234,12 @@
   6: 'B' if a page-release function has found a bad page reference or
      some unexpected page flags.
 
+  7: 'U' if a user specifically requested that the Tainted flag be set,
+     ' ' otherwise.
+
+  7: 'U' if a user or user application specifically requested that the
+     Tainted flag be set, ' ' otherwise.
+
 The primary reason for the 'Tainted: ' string is to tell kernel
 debuggers if this is a clean kernel or if anything unusual has
 occurred.  Tainting is permanent: even if an offending module is