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-rw-r--r--drivers/acpi/acpi_processor.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index c711db8a9c33..0f5218e361df 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -12,6 +12,7 @@
#define pr_fmt(fmt) "ACPI: " fmt
#include <linux/acpi.h>
+#include <linux/cpu.h>
#include <linux/device.h>
#include <linux/dmi.h>
#include <linux/kernel.h>