1 files changed, 5 insertions, 5 deletions

diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt
index e05278087ffa..4d3355da0e26 100644
--- a/Documentation/cpu-hotplug.txt
+++ b/Documentation/cpu-hotplug.txt
@@ -11,6 +11,8 @@
                         Joel Schopp <jschopp@austin.ibm.com>
                 ia64/x86_64:
                         Ashok Raj <ashok.raj@intel.com>
+                s390:
+                        Heiko Carstens <heiko.carstens@de.ibm.com>
 
 Authors: Ashok Raj <ashok.raj@intel.com>
 Lots of feedback: Nathan Lynch <nathanl@austin.ibm.com>,
@@ -44,11 +46,9 @@ maxcpus=n    Restrict boot time cpus to n. Say if you have 4 cpus, using
              maxcpus=2 will only boot 2. You can choose to bring the
              other cpus later online, read FAQ's for more info.
 
-additional_cpus*=n      Use this to limit hotpluggable cpus. This option sets
-                        cpu_possible_map = cpu_present_map + additional_cpus
-
-(*) Option valid only for following architectures
-- x86_64, ia64
+additional_cpus=n       [x86_64, s390 only] use this to limit hotpluggable cpus.
+                          This option sets
+                        cpu_possible_map = cpu_present_map + additional_cpus
 
 ia64 and x86_64 use the number of disabled local apics in ACPI tables MADT
 to determine the number of potentially hot-pluggable cpus. The implementation