Zero length packets are necessary when sending URBs with size
multiple of bulkout_size, otherwise the hardware just stalls.
Fixes: a82dfd33d1237 ("wifi: rtw88: Add common USB chip support")
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/net/wireless/realtek/rtw88/usb.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/wireless/realtek/rtw88/usb.c b/drivers/net/wireless/realtek/rtw88/usb.c
index d9e995544e405..1a09c9288198a 100644
--- a/drivers/net/wireless/realtek/rtw88/usb.c
+++ b/drivers/net/wireless/realtek/rtw88/usb.c
@@ -271,6 +271,7 @@ static int rtw_usb_write_port(struct rtw_dev *rtwdev, u8 qsel, struct sk_buff *s
return -ENOMEM;
usb_fill_bulk_urb(urb, usbd, pipe, skb->data, skb->len, cb, context);
+ urb->transfer_flags |= URB_ZERO_PACKET;
ret = usb_submit_urb(urb, GFP_ATOMIC);
usb_free_urb(urb);
--
2.30.2
