[PATCH] x86: disable_mtrr_trim only need for x86_64

[Yinghai Lu <Yinghai.Lu@Sun.COM>]

[PATCH] x86: disable_mtrr_trim only need for x86_64

mtrr_trim_uncached_memory is only used in x86_64,

so disable_mtrr_trim is not needed for x86_32

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>

diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index 46763e3..608c88a 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -624,6 +624,7 @@ static struct sysdev_driver mtrr_sysdev_driver = {
 	.resume		= mtrr_restore,
 };
 
+#ifdef CONFIG_X86_64
 static int disable_mtrr_trim;
 
 static int __init disable_mtrr_trim_setup(char *str)
@@ -633,7 +634,6 @@ static int __init disable_mtrr_trim_setup(char *str)
 }
 early_param("disable_mtrr_trim", disable_mtrr_trim_setup);
 
-#ifdef CONFIG_X86_64
 /**
  * mtrr_trim_uncached_memory - trim RAM not covered by MTRRs
  *