diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index a4fc7fc21439..7278295f94d2 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1056,8 +1056,6 @@ and is between 256 and 4096 characters. It is defined in the file
 			[SCSI] Maximum number of LUNs received.
 			Should be between 1 and 16384.
 
-	mca-pentium	[BUGS=X86-32]
-
 	mcatest=	[IA-64]
 
 	mce		[X86-32] Machine Check Exception
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 9b95edcfc6ae..027e5c003b16 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -25,14 +25,6 @@ static int __init no_halt(char *s)
 
 __setup("no-hlt", no_halt);
 
-static int __init mca_pentium(char *s)
-{
-	mca_pentium_flag = 1;
-	return 1;
-}
-
-__setup("mca-pentium", mca_pentium);
-
 static int __init no_387(char *s)
 {
 	boot_cpu_data.hard_math = 0;
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 691ab4cb167b..a1d7071a51c9 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -164,7 +164,6 @@ unsigned long mmu_cr4_features = X86_CR4_PAE;
 unsigned int machine_id;
 unsigned int machine_submodel_id;
 unsigned int BIOS_revision;
-unsigned int mca_pentium_flag;
 
 /* Boot loader ID as an integer, for the benefit of proc_dointvec */
 int bootloader_type;
diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h
index 149920dcd341..7b1ca1f90283 100644
--- a/include/asm-x86/processor.h
+++ b/include/asm-x86/processor.h
@@ -671,7 +671,6 @@ extern void init_gdt(int cpu);
 extern unsigned int machine_id;
 extern unsigned int machine_submodel_id;
 extern unsigned int BIOS_revision;
-extern unsigned int mca_pentium_flag;
 
 /* Boot loader type from the setup header */
 extern int bootloader_type;