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Commit 713a30de authored by Yan-Hsuan Chuang's avatar Yan-Hsuan Chuang Committed by Kalle Valo
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rtw88: enclose c2h cmd handle with mutex 



C2H commands that cannot be handled in IRQ context should
be protected by rtwdev->mutex. Because they might have a
sequece of hardware operations that does not want to be
interfered.

Signed-off-by: default avatarYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 0d762f03

drivers/net/wireless/realtek/rtw88/fw.c

+4 −0
Original line number Diff line number Diff line
@@ -36,6 +36,8 @@ void rtw_fw_c2h_cmd_handle(struct rtw_dev *rtwdev, struct sk_buff *skb) 
	c2h = (struct rtw_c2h_cmd *)(skb->data + pkt_offset);

	len = skb->len - pkt_offset - 2;



	mutex_lock(&rtwdev->mutex);



	switch (c2h->id) {

	case C2H_HALMAC:

		rtw_fw_c2h_cmd_handle_ext(rtwdev, skb);
@@ -43,6 +45,8 @@ void rtw_fw_c2h_cmd_handle(struct rtw_dev *rtwdev, struct sk_buff *skb) 
	default:

		break;

	}



	mutex_unlock(&rtwdev->mutex);

}



void rtw_fw_c2h_cmd_rx_irqsafe(struct rtw_dev *rtwdev, u32 pkt_offset,