diff options
Diffstat (limited to 'package/kernel/mac80211/patches/rt2x00/020-rt2x00-do-not-print-error-when-queue-is-full.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/rt2x00/020-rt2x00-do-not-print-error-when-queue-is-full.patch | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/rt2x00/020-rt2x00-do-not-print-error-when-queue-is-full.patch b/package/kernel/mac80211/patches/rt2x00/020-rt2x00-do-not-print-error-when-queue-is-full.patch new file mode 100644 index 0000000000..1c3d86a7c2 --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/020-rt2x00-do-not-print-error-when-queue-is-full.patch @@ -0,0 +1,30 @@ +From 1a8a8989b779e51e4652a30e9f22c36a1b6ffc4b Mon Sep 17 00:00:00 2001 +From: Stanislaw Gruszka <sgruszka@redhat.com> +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 <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; |