diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 6996a593dcb3..b1c89bc4bf90 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -69,6 +69,7 @@
 #include <asm/iseries/it_lp_queue.h>
 #include <asm/iseries/hv_call_xm.h>
 #endif
+#include <asm/smp.h>
 
 /* keep track of when we need to update the rtc */
 time_t last_rtc_update;
diff --git a/arch/ppc64/kernel/sysfs.c b/arch/ppc64/kernel/sysfs.c
index 6654b350979c..e99ec62c2c52 100644
--- a/arch/ppc64/kernel/sysfs.c
+++ b/arch/ppc64/kernel/sysfs.c
@@ -20,6 +20,7 @@
 #include <asm/paca.h>
 #include <asm/lppaca.h>
 #include <asm/machdep.h>
+#include <asm/smp.h>
 
 static DEFINE_PER_CPU(struct cpu, cpu_devices);