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mt76: mt7921: reduce the mutex lock scope during reset

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Reduce the mutex lock scope for reset to get rid of possible task hung
e.g wpa_supplicant and to allow the user-space process to keep running
during we need more retries to complete the reset.

Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Suggested-by: YN Chen <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Sean Wang
2022-07-11 13:38:17 +02:00
committed by Felix Fietkau
parent 6e0d707748
commit cb80da974f
1 changed files with 8 additions and 5 deletions
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mt7921/mac.c
+8 -5
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@@ -738,7 +738,7 @@ void mt7921_mac_reset_work(struct work_struct *work)
reset_work);
struct ieee80211_hw *hw = mt76_hw(dev);
struct mt76_connac_pm *pm = &dev->pm;
int i;
int i, ret;
dev_dbg(dev->mt76.dev, "chip reset\n");
dev->hw_full_reset = true;
@@ -748,11 +748,14 @@ void mt7921_mac_reset_work(struct work_struct *work)
cancel_delayed_work_sync(&pm->ps_work);
cancel_work_sync(&pm->wake_work);
mutex_lock(&dev->mt76.mutex);
for (i = 0; i < 10; i++)
if (!mt7921_dev_reset(dev))
for (i = 0; i < 10; i++) {
mutex_lock(&dev->mt76.mutex);
ret = mt7921_dev_reset(dev);
mutex_unlock(&dev->mt76.mutex);
if (!ret)
break;
mutex_unlock(&dev->mt76.mutex);
}
if (i == 10)
dev_err(dev->mt76.dev, "chip reset failed\n");