From 4955a5412cad83da6e994d939bdb4f7887e4585e Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 20 Dec 2013 19:47:29 +0100 Subject: intel_idle: remove superfluous dev->state_count initialization intel_idle driver sets dev->state_count to drv->state_count so the default dev->state_count initialization in cpuidle_enable_device() (called from cpuidle_register_device()) can be used instead. Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Kyungmin Park Cc: Len Brown Reviewed-by: Daniel Lezcano Signed-off-by: Rafael J. Wysocki --- drivers/idle/intel_idle.c | 29 ----------------------------- 1 file changed, 29 deletions(-) (limited to 'drivers/idle/intel_idle.c') diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 920232ffb28..282186e5329 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -644,39 +644,10 @@ static int __init intel_idle_cpuidle_driver_init(void) */ static int intel_idle_cpu_init(int cpu) { - int cstate; struct cpuidle_device *dev; dev = per_cpu_ptr(intel_idle_cpuidle_devices, cpu); - dev->state_count = 1; - - for (cstate = 0; cstate < CPUIDLE_STATE_MAX; ++cstate) { - int num_substates, mwait_hint, mwait_cstate, mwait_substate; - - if (cpuidle_state_table[cstate].enter == NULL) - break; - - if (cstate + 1 > max_cstate) { - printk(PREFIX "max_cstate %d reached\n", max_cstate); - break; - } - - mwait_hint = flg2MWAIT(cpuidle_state_table[cstate].flags); - mwait_cstate = MWAIT_HINT2CSTATE(mwait_hint); - mwait_substate = MWAIT_HINT2SUBSTATE(mwait_hint); - - /* does the state exist in CPUID.MWAIT? */ - num_substates = (mwait_substates >> ((mwait_cstate + 1) * 4)) - & MWAIT_SUBSTATE_MASK; - - /* if sub-state in table is not enumerated by CPUID */ - if ((mwait_substate + 1) > num_substates) - continue; - - dev->state_count += 1; - } - dev->cpu = cpu; if (cpuidle_register_device(dev)) { -- cgit v1.2.3-70-g09d2