1 files changed, 2 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 8932c58850be..8e3f6e943866 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1559,6 +1559,8 @@ and is between 256 and 4096 characters. It is defined in the file
                         Valid arguments: on, off
                         Default: on
 
+        noiotrap        [SH] Disables trapped I/O port accesses.
+
         noirqdebug      [X86-32] Disables the code which attempts to detect and
                         disable unhandled interrupt sources.