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-rw-r--r--Documentation/kernel-parameters.txt2
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diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 8932c58850b..8e3f6e94386 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.