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-rw-r--r--arch/x86/kernel/acpi/cstate.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
index f50e7fb2a201..d2b7f27781bc 100644
--- a/arch/x86/kernel/acpi/cstate.c
+++ b/arch/x86/kernel/acpi/cstate.c
@@ -14,6 +14,7 @@
#include <acpi/processor.h>
#include <asm/acpi.h>
#include <asm/mwait.h>
+#include <asm/special_insns.h>
/*
* Initialize bm_flags based on the CPU cache properties