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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-31174ae6cd9sm74577772eec.31.2026.07.13.05.01.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Jul 2026 05:01:15 -0700 (PDT) From: Zijun Hu Date: Mon, 13 Jul 2026 05:01:15 -0700 Subject: [PATCH v2 5/5] Bluetooth: btusb: Add a simple static btusb_prepare_reset() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260713-btusb_prep_qcc2072-v2-5-bbcb651285f2@oss.qualcomm.com> References: <20260713-btusb_prep_qcc2072-v2-0-bbcb651285f2@oss.qualcomm.com> In-Reply-To: <20260713-btusb_prep_qcc2072-v2-0-bbcb651285f2@oss.qualcomm.com> To: Marcel Holtmann , Luiz Augusto von Dentz Cc: Zijun Hu , linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, Zijun Hu X-Mailer: b4 0.14.3 X-Proofpoint-GUID: yKFztDU5o6Hmk9GQQCTw5USTAMDaCFX0 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzEzMDEyNSBTYWx0ZWRfX3qW8ko01WBTY 1dJ30OzuHXZdV5AVT3ieDrl6Dgl+FAN4Dcpy9Rx3YbSEejEMk9pVmXRuzj35cRr0U28bWhcBVqV BBh9l7rXNkHRnmahe+c1f/CgSTt16aeY8YGFE7wFTAHby4Pmmc0m0J4ezIJQHs0s0wN3tb6c9vS +rDP4zhVnjFMDP31RYwBJHdO9Lng1fTvxM70VXJDyqdProbelfhgTU4CiHPb3hy1LJgZI409eqF SZXnc4c0wE8ZSFGBJonJ/CzOegF3p8fb8VQE2HRFvdNcrb+AHxZhPHvQvQCbnPI3RMaqrjeIXbM 15JQxMVL5xaN2Pq1F3tV/xG9yy1ogm7r1RqI+W30pdngLhf6NVpFFQxKncL2rClJ+SA3tIRdDo5 H/wVVzP6ynXy2te4S2VxwBokBUrm3WZ0jXsDdoAfESGReEn8SgnlmFWwzq5ScbBxEbFrkuHgAM1 fsY0fDEmynY7AFVCb7w== X-Proofpoint-ORIG-GUID: yKFztDU5o6Hmk9GQQCTw5USTAMDaCFX0 X-Authority-Analysis: v=2.4 cv=dZSwG3Xe c=1 sm=1 tr=0 ts=6a54d38d cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=EUspDBNiAAAA:8 a=VT25rOb33v79RPrqpfwA:9 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzEzMDEyNSBTYWx0ZWRfXy6evzu58QQCI RQVhvPJd0lFsQ15KuIAiJF1yeB5kdwi8lJiWgE1pJv/XnIRj6oA131L6XXgNuN+y4KizzRCAHba j2k6mb5vTCnaA7EQ8XvhjB/AaSn0XSI= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-13_02,2026-07-10_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 priorityscore=1501 adultscore=0 malwarescore=0 spamscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607130125 Add btusb_prepare_reset() to do cleanup before a reset, and apply it to btusb_mtk_reset() as well. Signed-off-by: Zijun Hu --- drivers/bluetooth/btusb.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index f4f911c3de52..8d3bd98fce8a 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -2075,6 +2075,14 @@ static void btusb_stop_traffic(struct btusb_data *data) usb_kill_anchored_urbs(&data->ctrl_anchor); } +static void btusb_prepare_reset(struct hci_dev *hdev) +{ + struct btusb_data *data = hci_get_drvdata(hdev); + + btusb_stop_traffic(data); + usb_kill_anchored_urbs(&data->tx_anchor); +} + static int btusb_close(struct hci_dev *hdev) { struct btusb_data *data = hci_get_drvdata(hdev); @@ -2917,8 +2925,7 @@ static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) /* Release MediaTek ISO data interface */ btusb_mtk_release_iso_intf(hdev); - btusb_stop_traffic(data); - usb_kill_anchored_urbs(&data->tx_anchor); + btusb_prepare_reset(hdev); /* Toggle the hard reset line. The MediaTek device is going to * yank itself off the USB and then replug. The cleanup is handled -- 2.34.1