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wifi: rtw88: usb: silence log flooding error message

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When receiving more rx packets than the kernel can handle the driver
drops the packets and issues an error message. This is bad for two
reasons. The logs are flooded with myriads of messages, but then time
consumed for printing messages in that critical code path brings down
the device. After some time of excessive rx load the driver responds
with:

rtw_8822cu 1-1:1.2: failed to get tx report from firmware
rtw_8822cu 1-1:1.2: firmware failed to report density after scan
rtw_8822cu 1-1:1.2: firmware failed to report density after scan

The device stops working until being replugged.

Fix this by lowering the priority to debug level and also by
ratelimiting it.

Fixes: a82dfd33d1 ("wifi: rtw88: Add common USB chip support")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230524103934.1019096-1-s.hauer@pengutronix.de
This commit is contained in:
Sascha Hauer 2023-05-24 12:39:34 +02:00 committed by Kalle Valo
parent 072210c725
commit 1f1784a59c
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/realtek/rtw88/usb.c
View file

@ -535,7 +535,7 @@ static void rtw_usb_rx_handler(struct work_struct *work)
}
if (skb_queue_len(&rtwusb->rx_queue) >= RTW_USB_MAX_RXQ_LEN) {
rtw_err(rtwdev, "failed to get rx_queue, overflow\n");
dev_dbg_ratelimited(rtwdev->dev, "failed to get rx_queue, overflow\n");
dev_kfree_skb_any(skb);
continue;
}