Re: [PATCH] mt76: mt7921: update statistic in active mode only

[Lorenzo Bianconi <lorenzo@kernel.org>]

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> From: Deren Wu <deren.wu@mediatek.com>
> 
> wakeup chip every 250ms may cause huge power consumption
> 
> try to update statistic counter only if in active status only,
> and it would lead fewer power cost
> 
> Signed-off-by: Deren Wu <deren.wu@mediatek.com>
> ---
>  drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 10 +++++++---
>  1 file changed, 7 insertions(+), 3 deletions(-)
> 

Hi Deren,

in order to be acceptable we need even patch 2/2. I guess it would be better to
squash them in oreder to not break it.

Regards,
Lorenzo

> diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
> index e29d4fdab572..212832b34674 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
> @@ -1459,13 +1459,15 @@ void mt7921_pm_power_save_work(struct work_struct *work)
>  {
>  	struct mt7921_dev *dev;
>  	unsigned long delta;
> +	struct mt76_phy *mphy;
>  
>  	dev = (struct mt7921_dev *)container_of(work, struct mt7921_dev,
>  						pm.ps_work.work);
> +	mphy = dev->phy.mt76;
>  
>  	delta = dev->pm.idle_timeout;
> -	if (test_bit(MT76_HW_SCANNING, &dev->mphy.state) ||
> -	    test_bit(MT76_HW_SCHED_SCANNING, &dev->mphy.state))
> +	if (test_bit(MT76_HW_SCANNING, &mphy->state) ||
> +	    test_bit(MT76_HW_SCHED_SCANNING, &mphy->state))
>  		goto out;
>  
>  	if (time_is_after_jiffies(dev->pm.last_activity + delta)) {
> @@ -1473,8 +1475,10 @@ void mt7921_pm_power_save_work(struct work_struct *work)
>  		goto out;
>  	}
>  
> -	if (!mt7921_mcu_fw_pmctrl(dev))
> +	if (!mt7921_mcu_fw_pmctrl(dev)) {
> +		cancel_delayed_work_sync(&mphy->mac_work);
>  		return;
> +	}
>  out:
>  	queue_delayed_work(dev->mt76.wq, &dev->pm.ps_work, delta);
>  }
> -- 
> 2.18.0
> 

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