x86: simplify idle selection

default_idle is selected in cpu_idle(), when no other idle routine is
selected. Select it in select_idle_routine() when mwait is not
selected.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 6 deletions

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index f8476dfbb60d..ee4ab461c50d 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -168,24 +168,19 @@ void cpu_idle(void)
         while (1) {
                 tick_nohz_stop_sched_tick();
                 while (!need_resched()) {
-                        void (*idle)(void);
 
                         check_pgt_cache();
                         rmb();
-                        idle = pm_idle;
 
                         if (rcu_pending(cpu))
                                 rcu_check_callbacks(cpu, 0);
 
-                        if (!idle)
-                                idle = default_idle;
-
                         if (cpu_is_offline(cpu))
                                 play_dead();
 
                         local_irq_disable();
                         __get_cpu_var(irq_stat).idle_timestamp = jiffies;
-                        idle();
+                        pm_idle();
                 }
                 tick_nohz_restart_sched_tick();
                 preempt_enable_no_resched();