diff options
Diffstat (limited to 'package/kernel/mac80211/patches/rt2x00/023-rt2x00-do-not-print-error-when-queue-is-full.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/rt2x00/023-rt2x00-do-not-print-error-when-queue-is-full.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/rt2x00/023-rt2x00-do-not-print-error-when-queue-is-full.patch b/package/kernel/mac80211/patches/rt2x00/023-rt2x00-do-not-print-error-when-queue-is-full.patch new file mode 100644 index 0000000000..7e2f2193be --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/023-rt2x00-do-not-print-error-when-queue-is-full.patch @@ -0,0 +1,43 @@ +From patchwork Tue Mar 12 09:51:43 2019 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 7bit +X-Patchwork-Submitter: Stanislaw Gruszka <sgruszka@redhat.com> +X-Patchwork-Id: 10848963 +X-Patchwork-Delegate: kvalo@adurom.com +From: Stanislaw Gruszka <sgruszka@redhat.com> +To: linux-wireless@vger.kernel.org +Cc: =?utf-8?q?Tomislav_Po=C5=BEega?= <pozega.tomislav@gmail.com>, + Daniel Golle <daniel@makrotopia.org>, Felix Fietkau <nbd@nbd.name>, + Mathias Kresin <dev@kresin.me> +Subject: [PATCH v3 4/4] rt2x00: do not print error when queue is full +Date: Tue, 12 Mar 2019 10:51:43 +0100 +Message-Id: <1552384303-29529-5-git-send-email-sgruszka@redhat.com> +In-Reply-To: <1552384303-29529-1-git-send-email-sgruszka@redhat.com> +References: <1552384303-29529-1-git-send-email-sgruszka@redhat.com> + +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; |