diff --git a/Documentation/x86_64/boot-options.txt b/Documentation/x86_64/boot-options.txt
index 6177d881983fa701f4df08f9ad55c6b21db6a02e..a4595b22e092a064b6a4a0e4f5fe8be7b53a82b5 100644
--- a/Documentation/x86_64/boot-options.txt
+++ b/Documentation/x86_64/boot-options.txt
@@ -134,12 +134,6 @@ Non Executable Mappings
 
 SMP
 
-  nosmp	Only use a single CPU
-
-  maxcpus=NUMBER only use upto NUMBER CPUs
-
-  cpumask=MASK   only use cpus with bits set in mask
-
   additional_cpus=NUM Allow NUM more CPUs for hotplug
 		 (defaults are specified by the BIOS, see Documentation/x86_64/cpu-hotplug-spec)
 
diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c
index 0ec84909d846b452b40ce0b170b122593eaeb50d..8bf0ca03ac8e8a78f13ca5ea86842e02cfca9be0 100644
--- a/arch/x86_64/kernel/mpparse.c
+++ b/arch/x86_64/kernel/mpparse.c
@@ -32,7 +32,6 @@
 
 /* Have we found an MP table */
 int smp_found_config;
-unsigned int __initdata maxcpus = NR_CPUS;
 
 /*
  * Various Linux-internal data structures created from the