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-rw-r--r--arch/x86/kernel/smpboot.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 6978f1bf653..253be86a88e 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -11,6 +11,8 @@
#include <asm/cpu.h>
#include <asm/numa.h>
+#include <mach_apic.h>
+
/* Number of siblings per CPU package */
int smp_num_siblings = 1;
EXPORT_SYMBOL(smp_num_siblings);