1 files changed, 3 insertions, 3 deletions

diff --git a/arch/i386/kernel/cpu/mtrr/main.c b/arch/i386/kernel/cpu/mtrr/main.c
index 16bb7ea87145..0acfb6a5a220 100644
--- a/arch/i386/kernel/cpu/mtrr/main.c
+++ b/arch/i386/kernel/cpu/mtrr/main.c
@@ -50,7 +50,7 @@ u32 num_var_ranges = 0;
 unsigned int *usage_table;
 static DEFINE_MUTEX(mtrr_mutex);
 
-u32 size_or_mask, size_and_mask;
+u64 size_or_mask, size_and_mask;
 
 static struct mtrr_ops * mtrr_ops[X86_VENDOR_NUM] = {};
 
@@ -662,8 +662,8 @@ void __init mtrr_bp_init(void)
                              boot_cpu_data.x86_mask == 0x4))
                                 phys_addr = 36;
 
-                        size_or_mask = ~((1 << (phys_addr - PAGE_SHIFT)) - 1);
-                        size_and_mask = ~size_or_mask & 0xfff00000;
+                        size_or_mask = ~((1ULL << (phys_addr - PAGE_SHIFT)) - 1);
+                        size_and_mask = ~size_or_mask & 0xfffff00000ULL;
                 } else if (boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR &&
                            boot_cpu_data.x86 == 6) {
                         /* VIA C* family have Intel style MTRRs, but