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wifi: rtw88: usb: send Zero length packets if necessary

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Zero length packets are necessary when sending URBs with size
multiple of bulkout_size, otherwise the hardware just stalls.

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/20230210111632.1985205-3-s.hauer@pengutronix.de
This commit is contained in:
Sascha Hauer
2023-02-10 12:16:31 +01:00
committed by Kalle Valo
parent 7869b834fb
commit 07ce9fa6ab
1 changed files with 1 additions and 0 deletions
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1
drivers/net/wireless/realtek/rtw88/usb.c
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@@ -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);