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rt2x00: do not print error when queue is full

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For unknown reasons printk() on some context can cause CPU hung on
embedded MT7620 AP/router MIPS platforms. What can result on wifi
disconnects.

This patch move queue full messages to debug level what is consistent
with other mac80211 drivers which drop packet silently if tx queue is
full. This make MT7620 OpenWRT routers more stable, what was reported
by various users.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Stanislaw Gruszka 2019-03-12 10:51:43 +01:00 committed by Kalle Valo
parent e383c70474
commit 61a4e5ff0d
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
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@ -674,7 +674,7 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
spin_lock(&queue->tx_lock);
if (unlikely(rt2x00queue_full(queue))) {
rt2x00_err(queue->rt2x00dev, "Dropping frame due to full tx queue %d\n",
rt2x00_dbg(queue->rt2x00dev, "Dropping frame due to full tx queue %d\n",
queue->qid);
ret = -ENOBUFS;
goto out;