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- From 1a8a8989b779e51e4652a30e9f22c36a1b6ffc4b Mon Sep 17 00:00:00 2001
- From: Stanislaw Gruszka <[email protected]>
- Date: Thu, 20 Dec 2018 16:16:11 +0100
- Subject: [PATCH 20/28] rt2x00: do not print error when queue is full
- 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 <[email protected]>
- ---
- drivers/net/wireless/ralink/rt2x00/rt2x00queue.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
- --- a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
- +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
- @@ -671,7 +671,7 @@ int rt2x00queue_write_tx_frame(struct da
- 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;
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