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ath10k: fix firmware recovery with ap interface

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Beacon data wasn't properly cleared during early
phase of recovery. This in turn caused firmware to
crash because the beacon data was submitted before
vdevs were fully re-configured. Ultimately the
device was considered wedged and nothing worked
until driver was reloaded.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Michal Kazior 2014-04-23 19:30:06 +03:00 committed by Kalle Valo
parent ad3d2153bd
commit d9bc4b9b69
1 changed files with 13 additions and 0 deletions
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13
drivers/net/wireless/ath/ath10k/mac.c
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@ -2291,6 +2291,8 @@ static void ath10k_tx(struct ieee80211_hw *hw,
*/
void ath10k_halt(struct ath10k *ar)
{
struct ath10k_vif *arvif;
lockdep_assert_held(&ar->conf_mutex);
if (ath10k_monitor_is_enabled(ar)) {
@ -2313,6 +2315,17 @@ void ath10k_halt(struct ath10k *ar)
ar->scan.in_progress = false;
ieee80211_scan_completed(ar->hw, true);
}
list_for_each_entry(arvif, &ar->arvifs, list) {
if (!arvif->beacon)
continue;
dma_unmap_single(arvif->ar->dev,
ATH10K_SKB_CB(arvif->beacon)->paddr,
arvif->beacon->len, DMA_TO_DEVICE);
dev_kfree_skb_any(arvif->beacon);
arvif->beacon = NULL;
}
spin_unlock_bh(&ar->data_lock);
}