[S390] idle: remove idle notifier chain.

The idle notifier chain consists of at most one element. So there's
no point in having a notifier chain. Remove it and directly call the
function.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 2 insertions, 23 deletions

diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index ca90ee3f930e..eb08d04bc1ec 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -136,7 +136,7 @@ static inline void set_vtimer(__u64 expires)
 }
 #endif
 
-static void start_cpu_timer(void)
+void vtime_start_cpu_timer(void)
 {
         struct vtimer_queue *vt_list;
 
@@ -150,7 +150,7 @@ static void start_cpu_timer(void)
                 set_vtimer(vt_list->idle);
 }
 
-static void stop_cpu_timer(void)
+void vtime_stop_cpu_timer(void)
 {
         struct vtimer_queue *vt_list;
 
@@ -536,24 +536,6 @@ void init_cpu_vtimer(void)
 
 }
 
-static int vtimer_idle_notify(struct notifier_block *self,
-                              unsigned long action, void *hcpu)
-{
-        switch (action) {
-        case S390_CPU_IDLE:
-                stop_cpu_timer();
-                break;
-        case S390_CPU_NOT_IDLE:
-                start_cpu_timer();
-                break;
-        }
-        return NOTIFY_OK;
-}
-
-static struct notifier_block vtimer_idle_nb = {
-        .notifier_call = vtimer_idle_notify,
-};
-
 void __init vtime_init(void)
 {
         /* request the cpu timer external interrupt */
@@ -561,9 +543,6 @@ void __init vtime_init(void)
                                               &ext_int_info_timer) != 0)
                 panic("Couldn't request external interrupt 0x1005");
 
-        if (register_idle_notifier(&vtimer_idle_nb))
-                panic("Couldn't register idle notifier");
-
         /* Enable cpu timer interrupts on the boot cpu. */
         init_cpu_vtimer();
 }