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-rw-r--r--arch/x86/include/asm/nospec-branch.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h
index 328ea3cb769f..bc258e644e5e 100644
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -265,8 +265,8 @@ void alternative_msr_write(unsigned int msr, u64 val, unsigned int feature)
{
asm volatile(ALTERNATIVE("", "wrmsr", %c[feature])
: : "c" (msr),
- "a" (val),
- "d" (val >> 32),
+ "a" ((u32)val),
+ "d" ((u32)(val >> 32)),
[feature] "i" (feature)
: "memory");
}