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-rw-r--r--arch/x86/include/asm/bitops.h2
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce.c6
2 files changed, 5 insertions, 3 deletions
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index b97596e2b68..a6983b27722 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -15,6 +15,8 @@
#include <linux/compiler.h>
#include <asm/alternative.h>
+#define BIT_64(n) (U64_C(1) << (n))
+
/*
* These have to be done with inline assembly: that way the bit-setting
* is guaranteed to be atomic. All bit operations return 0 if the bit
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 2afcbd253e1..aaa056f3169 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -1458,9 +1458,9 @@ static int __cpuinit __mcheck_cpu_apply_quirks(struct cpuinfo_x86 *c)
rdmsrl(msrs[i], val);
/* CntP bit set? */
- if (val & BIT(62)) {
- val &= ~BIT(62);
- wrmsrl(msrs[i], val);
+ if (val & BIT_64(62)) {
+ val &= ~BIT_64(62);
+ wrmsrl(msrs[i], val);
}
}