From: Ping-Ke Shih <pkshih@xxxxxxxxxxx> commit 8e4942db5f5ed7b7d9690d93235b3ca49c5c59ce upstream. qsel_to_ep[] can be assigned negative value, so change type from 'u8' to 'int'. Otherwise, Smatch static checker warns: drivers/net/wireless/realtek/rtw88/usb.c:219 rtw_usb_parse() warn: assigning (-22) to unsigned variable 'rtwusb->qsel_to_ep[8]' Cc: stable@xxxxxxxxxxxxxxx Fixes: a6f187f92bcc ("wifi: rtw88: usb: fix priority queue to endpoint mapping") Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Link: https://lore.kernel.org/linux-wireless/c3f70197-829d-48ed-ae15-66a9de80fa90@kili.mountain/ Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx> Acked-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> Tested-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxx> Link: https://lore.kernel.org/r/20230508085539.46795-1-pkshih@xxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/net/wireless/realtek/rtw88/usb.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/realtek/rtw88/usb.h b/drivers/net/wireless/realtek/rtw88/usb.h index 30647f0dd61c..ad1d7955c6a5 100644 --- a/drivers/net/wireless/realtek/rtw88/usb.h +++ b/drivers/net/wireless/realtek/rtw88/usb.h @@ -78,7 +78,7 @@ struct rtw_usb { u8 pipe_interrupt; u8 pipe_in; u8 out_ep[RTW_USB_EP_MAX]; - u8 qsel_to_ep[TX_DESC_QSEL_MAX]; + int qsel_to_ep[TX_DESC_QSEL_MAX]; u8 usb_txagg_num; struct workqueue_struct *txwq, *rxwq; -- 2.40.1