sh: provide percpu CPU states for hotplug notifiers.

This provides percpu CPU states in preparation for CPU hotplug and the
associated notifier chains.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/sh/include/asm/smp.h b/arch/sh/include/asm/smp.h
index 7f13d46ec8d..da5135b2579 100644
--- a/arch/sh/include/asm/smp.h
+++ b/arch/sh/include/asm/smp.h
@@ -10,6 +10,7 @@
 #include <linux/spinlock.h>
 #include <asm/atomic.h>
 #include <asm/current.h>
+#include <asm/percpu.h>
 
 #define raw_smp_processor_id()  (current_thread_info()->cpu)
 
@@ -30,6 +31,8 @@ enum {
         SMP_MSG_NR,     /* must be last */
 };
 
+DECLARE_PER_CPU(int, cpu_state);
+
 void smp_message_recv(unsigned int msg);
 void smp_timer_broadcast(const struct cpumask *mask);