From: Viresh Kumar Date: Thu, 21 May 2015 08:03:46 +0000 (+0530) Subject: clockevents: Use helpers to check the state of a clockevent device X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=472c4a9437d3c6a0b1e59df7c5aa14075946aa70;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git clockevents: Use helpers to check the state of a clockevent device Use accessor functions to check the state of clockevent devices in core code. Signed-off-by: Viresh Kumar Cc: linaro-kernel@lists.linaro.org Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/fa2b9869fd17f210eaa156ec2b594efd0230b6c7.1432192527.git.viresh.kumar@linaro.org Signed-off-by: Thomas Gleixner --- diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c index 2a5c369e50ab..e568ec8c320b 100644 --- a/kernel/time/clockevents.c +++ b/kernel/time/clockevents.c @@ -136,7 +136,7 @@ static int __clockevents_set_state(struct clock_event_device *dev, case CLOCK_EVT_STATE_ONESHOT_STOPPED: /* Core internal bug */ - if (WARN_ONCE(dev->state != CLOCK_EVT_STATE_ONESHOT, + if (WARN_ONCE(!clockevent_state_oneshot(dev), "Current state: %d\n", dev->state)) return -EINVAL; @@ -170,7 +170,7 @@ void clockevents_set_state(struct clock_event_device *dev, * A nsec2cyc multiplicator of 0 is invalid and we'd crash * on it, so fix it up and emit a warning: */ - if (state == CLOCK_EVT_STATE_ONESHOT) { + if (clockevent_state_oneshot(dev)) { if (unlikely(!dev->mult)) { dev->mult = 1; WARN_ON(1); @@ -259,7 +259,7 @@ static int clockevents_program_min_delta(struct clock_event_device *dev) delta = dev->min_delta_ns; dev->next_event = ktime_add_ns(ktime_get(), delta); - if (dev->state == CLOCK_EVT_STATE_SHUTDOWN) + if (clockevent_state_shutdown(dev)) return 0; dev->retries++; @@ -296,7 +296,7 @@ static int clockevents_program_min_delta(struct clock_event_device *dev) delta = dev->min_delta_ns; dev->next_event = ktime_add_ns(ktime_get(), delta); - if (dev->state == CLOCK_EVT_STATE_SHUTDOWN) + if (clockevent_state_shutdown(dev)) return 0; dev->retries++; @@ -328,11 +328,11 @@ int clockevents_program_event(struct clock_event_device *dev, ktime_t expires, dev->next_event = expires; - if (dev->state == CLOCK_EVT_STATE_SHUTDOWN) + if (clockevent_state_shutdown(dev)) return 0; /* We must be in ONESHOT state here */ - WARN_ONCE(dev->state != CLOCK_EVT_STATE_ONESHOT, "Current state: %d\n", + WARN_ONCE(!clockevent_state_oneshot(dev), "Current state: %d\n", dev->state); /* Shortcut for clockevent devices that can deal with ktime. */ @@ -377,7 +377,7 @@ static int clockevents_replace(struct clock_event_device *ced) struct clock_event_device *dev, *newdev = NULL; list_for_each_entry(dev, &clockevent_devices, list) { - if (dev == ced || dev->state != CLOCK_EVT_STATE_DETACHED) + if (dev == ced || !clockevent_state_detached(dev)) continue; if (!tick_check_replacement(newdev, dev)) @@ -403,7 +403,7 @@ static int clockevents_replace(struct clock_event_device *ced) static int __clockevents_try_unbind(struct clock_event_device *ced, int cpu) { /* Fast track. Device is unused */ - if (ced->state == CLOCK_EVT_STATE_DETACHED) { + if (clockevent_state_detached(ced)) { list_del_init(&ced->list); return 0; } @@ -561,10 +561,10 @@ int __clockevents_update_freq(struct clock_event_device *dev, u32 freq) { clockevents_config(dev, freq); - if (dev->state == CLOCK_EVT_STATE_ONESHOT) + if (clockevent_state_oneshot(dev)) return clockevents_program_event(dev, dev->next_event, false); - if (dev->state == CLOCK_EVT_STATE_PERIODIC) + if (clockevent_state_periodic(dev)) return __clockevents_set_state(dev, CLOCK_EVT_STATE_PERIODIC); return 0; @@ -625,7 +625,7 @@ void clockevents_exchange_device(struct clock_event_device *old, } if (new) { - BUG_ON(new->state != CLOCK_EVT_STATE_DETACHED); + BUG_ON(!clockevent_state_detached(new)); clockevents_shutdown(new); } } @@ -681,7 +681,7 @@ void tick_cleanup_dead_cpu(int cpu) if (cpumask_test_cpu(cpu, dev->cpumask) && cpumask_weight(dev->cpumask) == 1 && !tick_is_broadcast_device(dev)) { - BUG_ON(dev->state != CLOCK_EVT_STATE_DETACHED); + BUG_ON(!clockevent_state_detached(dev)); list_del(&dev->list); } } diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index 12fcc55d607a..132f819fdcdf 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -303,7 +303,7 @@ static void tick_handle_periodic_broadcast(struct clock_event_device *dev) raw_spin_lock(&tick_broadcast_lock); bc_local = tick_do_periodic_broadcast(); - if (dev->state == CLOCK_EVT_STATE_ONESHOT) { + if (clockevent_state_oneshot(dev)) { ktime_t next = ktime_add(dev->next_event, tick_period); clockevents_program_event(dev, next, true); @@ -528,7 +528,7 @@ static void tick_broadcast_set_affinity(struct clock_event_device *bc, static void tick_broadcast_set_event(struct clock_event_device *bc, int cpu, ktime_t expires) { - if (bc->state != CLOCK_EVT_STATE_ONESHOT) + if (!clockevent_state_oneshot(bc)) clockevents_set_state(bc, CLOCK_EVT_STATE_ONESHOT); clockevents_program_event(bc, expires, 1); @@ -831,7 +831,7 @@ void tick_broadcast_setup_oneshot(struct clock_event_device *bc) /* Set it up only once ! */ if (bc->event_handler != tick_handle_oneshot_broadcast) { - int was_periodic = bc->state == CLOCK_EVT_STATE_PERIODIC; + int was_periodic = clockevent_state_periodic(bc); bc->event_handler = tick_handle_oneshot_broadcast; diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c index ea5f9eae8f74..cf881c62c3c5 100644 --- a/kernel/time/tick-common.c +++ b/kernel/time/tick-common.c @@ -112,7 +112,7 @@ void tick_handle_periodic(struct clock_event_device *dev) return; #endif - if (dev->state != CLOCK_EVT_STATE_ONESHOT) + if (!clockevent_state_oneshot(dev)) return; for (;;) { /* diff --git a/kernel/time/tick-oneshot.c b/kernel/time/tick-oneshot.c index f8de75715c2f..3f9715bec291 100644 --- a/kernel/time/tick-oneshot.c +++ b/kernel/time/tick-oneshot.c @@ -36,7 +36,7 @@ int tick_program_event(ktime_t expires, int force) return 0; } - if (unlikely(dev->state == CLOCK_EVT_STATE_ONESHOT_STOPPED)) { + if (unlikely(clockevent_state_oneshot_stopped(dev))) { /* * We need the clock event again, configure it in ONESHOT mode * before using it.