diff mbox series

[v3,4/4] rt2x00: do not print error when queue is full

Message ID 1552384303-29529-5-git-send-email-sgruszka@redhat.com (mailing list archive)
State Accepted
Commit 61a4e5ff0d727d221ddf13aac209aca04afa7eb1
Delegated to: Kalle Valo
Headers show
Series rt2x00 random fixes | expand

Commit Message

Stanislaw Gruszka March 12, 2019, 9:51 a.m. UTC
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>
---
 drivers/net/wireless/ralink/rt2x00/rt2x00queue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Tom Psyborg March 19, 2019, 2:12 a.m. UTC | #1
On 12/03/2019, Stanislaw Gruszka <sgruszka@redhat.com> wrote:
> This make MT7620 OpenWRT routers more stable, what was reported
> by various users.

Confirmed.
diff mbox series

Patch

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
index 92ddc19e7bf7..947fc8964e9a 100644
--- 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 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;