Received-SPF: pass (google.com: domain of linux-wireless+bounces-8431-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3;
From: =?UTF-8?q?Marcin=20=C5=9Alusarz?= <marcin.slusarz@gmail.com>
To: linux-wireless@vger.kernel.org
Cc: =?UTF-8?q?Marcin=20=C5=9Alusarz?= <mslusarz@renau.com>
Subject: [PATCH] wifi: rtw88: usb: drop rx skbs when device is not running
Date: Mon,  3 Jun 2024 16:56:20 +0200
Message-Id: <20240603145620.1858957-1-marcin.slusarz@gmail.com>
In-Reply-To: <CA+GA0_v1rpoFrRVxpKpYqOrjdxEecn_m3+RKwxYc9H761dpMvw@mail.gmail.com>
References: <CA+GA0_v1rpoFrRVxpKpYqOrjdxEecn_m3+RKwxYc9H761dpMvw@mail.gmail.com>
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

From: Marcin Ślusarz <mslusarz@renau.com>

Avoids WARN_ON(!local->started) in ieee80211_rx_list, after
the patch that disables power management of 8821CU.

Signed-off-by: Marcin Ślusarz <mslusarz@renau.com>
---
 drivers/net/wireless/realtek/rtw88/usb.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw88/usb.c b/drivers/net/wireless/realtek/rtw88/usb.c
index e1b66f339cca..c25fd4b193a7 100644
--- a/drivers/net/wireless/realtek/rtw88/usb.c
+++ b/drivers/net/wireless/realtek/rtw88/usb.c
@@ -570,6 +570,11 @@ static void rtw_usb_rx_handler(struct work_struct *work)
 			continue;
 		}
 
+		if (!test_bit(RTW_FLAG_RUNNING, rtwdev->flags)) {
+			dev_kfree_skb_any(skb);
+			continue;
+		}
+
 		skb_put(skb, pkt_stat.pkt_len);
 		skb_reserve(skb, pkt_offset);
 		memcpy(skb->cb, &rx_status, sizeof(rx_status));
-- 
2.25.1