2019-02-13 18:47:18 +00:00
|
|
|
From 1a8a8989b779e51e4652a30e9f22c36a1b6ffc4b Mon Sep 17 00:00:00 2001
|
|
|
|
|
From: Stanislaw Gruszka <sgruszka@redhat.com>
|
|
|
|
|
Date: Thu, 20 Dec 2018 16:16:11 +0100
|
2019-03-01 02:34:40 +00:00
|
|
|
X-Patchwork-Submitter: Stanislaw Gruszka <sgruszka@redhat.com>
|
|
|
|
|
X-Patchwork-Id: 10739037
|
|
|
|
|
X-Patchwork-Delegate: kvalo@adurom.com
|
2019-02-13 18:47:18 +00:00
|
|
|
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 <sgruszka@redhat.com>
|
|
|
|
|
---
|
|
|
|
|
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;
|
