This is a note to let you know that I've just added the patch titled
wifi: rtw88: usb: send Zero length packets if necessary
to the 6.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-rtw88-usb-send-zero-length-packets-if-necessary.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 07ce9fa6ab0e5e4cb5516a1f7c754ab2758fe5cd Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
Date: Fri, 10 Feb 2023 12:16:31 +0100
Subject: wifi: rtw88: usb: send Zero length packets if necessary
From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
commit 07ce9fa6ab0e5e4cb5516a1f7c754ab2758fe5cd upstream.
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>
Reviewed-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230210111632.1985205-3-s.hauer@xxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/realtek/rtw88/usb.c | 1 +
1 file changed, 1 insertion(+)
--- 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
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);
Patches currently in stable-queue which might be from s.hauer@xxxxxxxxxxxxxx are
queue-6.2/wifi-rtw88-usb-drop-now-unnecessary-urb-size-check.patch
queue-6.2/wifi-rtw88-usb-send-zero-length-packets-if-necessary.patch
queue-6.2/wifi-rtw88-usb-set-qsel-correctly.patch
