diff options
| -rw-r--r-- | drivers/net/wireless/bcm43xx/bcm43xx_main.c | 41 |
1 files changed, 7 insertions, 34 deletions
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_main.c b/drivers/net/wireless/bcm43xx/bcm43xx_main.c index c6bd86889f1..b199d32c37e 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_main.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_main.c @@ -3209,55 +3209,27 @@ static void bcm43xx_periodic_every15sec(struct bcm43xx_private *bcm) static void do_periodic_work(struct bcm43xx_private *bcm) { - unsigned int state; - - state = bcm->periodic_state; - if (state % 8 == 0) + if (bcm->periodic_state % 8 == 0) bcm43xx_periodic_every120sec(bcm); - if (state % 4 == 0) + if (bcm->periodic_state % 4 == 0) bcm43xx_periodic_every60sec(bcm); - if (state % 2 == 0) + if (bcm->periodic_state % 2 == 0) bcm43xx_periodic_every30sec(bcm); - if (state % 1 == 0) - bcm43xx_periodic_every15sec(bcm); - bcm->periodic_state = state + 1; + bcm43xx_periodic_every15sec(bcm); schedule_delayed_work(&bcm->periodic_work, HZ * 15); } -/* Estimate a "Badness" value based on the periodic work - * state-machine state. "Badness" is worse (bigger), if the - * periodic work will take longer. - */ -static int estimate_periodic_work_badness(unsigned int state) -{ - int badness = 0; - - if (state % 8 == 0) /* every 120 sec */ - badness += 10; - if (state % 4 == 0) /* every 60 sec */ - badness += 5; - if (state % 2 == 0) /* every 30 sec */ - badness += 1; - if (state % 1 == 0) /* every 15 sec */ - badness += 1; - -#define BADNESS_LIMIT 4 - return badness; -} - static void bcm43xx_periodic_work_handler(void *d) { struct bcm43xx_private *bcm = d; struct net_device *net_dev = bcm->net_dev; unsigned long flags; u32 savedirqs = 0; - int badness; unsigned long orig_trans_start = 0; mutex_lock(&bcm->mutex); - badness = estimate_periodic_work_badness(bcm->periodic_state); - if (badness > BADNESS_LIMIT) { + if (unlikely(bcm->periodic_state % 4 == 0)) { /* Periodic work will take a long time, so we want it to * be preemtible. */ @@ -3289,7 +3261,7 @@ static void bcm43xx_periodic_work_handler(void *d) do_periodic_work(bcm); - if (badness > BADNESS_LIMIT) { + if (unlikely(bcm->periodic_state % 4 == 0)) { spin_lock_irqsave(&bcm->irq_lock, flags); tasklet_enable(&bcm->isr_tasklet); bcm43xx_interrupt_enable(bcm, savedirqs); @@ -3300,6 +3272,7 @@ static void bcm43xx_periodic_work_handler(void *d) net_dev->trans_start = orig_trans_start; } mmiowb(); + bcm->periodic_state++; spin_unlock_irqrestore(&bcm->irq_lock, flags); mutex_unlock(&bcm->mutex); } |