m32r: fix build due to notify_cpu_starting() change

fix:

arch/m32r/kernel/smpboot.c:501: err
or: implicit declaration of function 'notify_cpu_starting'
make[2]: *** [arch/m32r/kernel/smpboot.o] Error 1
make[2]: *** Waiting for unfinished jobs....

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/m32r/kernel/smpboot.c b/arch/m32r/kernel/smpboot.c
index fc2994811f15..39cb6da72dcb 100644
--- a/arch/m32r/kernel/smpboot.c
+++ b/arch/m32r/kernel/smpboot.c
@@ -40,6 +40,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/cpu.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>