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-rw-r--r--drivers/acpi/processor_idle.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 6c6751b1405b..59fac8d79412 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -40,6 +40,14 @@
#include <linux/sched.h> /* need_resched() */
#include <linux/latency.h>
+/*
+ * Include the apic definitions for x86 to have the APIC timer related defines
+ * available also for UP (on SMP it gets magically included via linux/smp.h).
+ */
+#ifdef CONFIG_X86
+#include <asm/apic.h>
+#endif
+
#include <asm/io.h>
#include <asm/uaccess.h>