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Jiri Slaby |
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From: Sascha Hauer <s.hauer@pengutronix.de>
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Jiri Slaby |
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Date: Fri, 10 Feb 2023 12:16:31 +0100
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Jiri Slaby |
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Subject: [PATCH] wifi: rtw88: usb: send Zero length packets if necessary
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Jiri Slaby |
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References: bsc#1012628
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Patch-mainline: 6.2.2
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Git-commit: 07ce9fa6ab0e5e4cb5516a1f7c754ab2758fe5cd
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commit 07ce9fa6ab0e5e4cb5516a1f7c754ab2758fe5cd upstream.
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Jiri Slaby |
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Jiri Slaby |
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Zero length packets are necessary when sending URBs with size
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multiple of bulkout_size, otherwise the hardware just stalls.
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Fixes: a82dfd33d1237 ("wifi: rtw88: Add common USB chip support")
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
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Signed-off-by: Kalle Valo <kvalo@kernel.org>
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Link: https://lore.kernel.org/r/20230210111632.1985205-3-s.hauer@pengutronix.de
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Jiri Slaby <jslaby@suse.cz>
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---
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drivers/net/wireless/realtek/rtw88/usb.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/drivers/net/wireless/realtek/rtw88/usb.c b/drivers/net/wireless/realtek/rtw88/usb.c
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index d9e99554..1a09c928 100644
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--- a/drivers/net/wireless/realtek/rtw88/usb.c
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+++ b/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
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return -ENOMEM;
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usb_fill_bulk_urb(urb, usbd, pipe, skb->data, skb->len, cb, context);
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+ urb->transfer_flags |= URB_ZERO_PACKET;
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ret = usb_submit_urb(urb, GFP_ATOMIC);
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usb_free_urb(urb);
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--
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2.35.3
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