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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-30c1bddfe34sm12025561eec.20.2026.06.22.07.52.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jun 2026 07:52:20 -0700 (PDT) From: Zijun Hu Date: Mon, 22 Jun 2026 07:52:19 -0700 Subject: [PATCH 06/13] Bluetooth: btusb: Fix BD_ADDR byte order in btusb_set_bdaddr_wcn6855() 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: <20260622-bt_bugfix-v1-6-11f936d84e72@oss.qualcomm.com> References: <20260622-bt_bugfix-v1-0-11f936d84e72@oss.qualcomm.com> In-Reply-To: <20260622-bt_bugfix-v1-0-11f936d84e72@oss.qualcomm.com> To: Marcel Holtmann , Luiz Augusto von Dentz , Rocky Liao , Bartosz Golaszewski , Ben Young Tae Kim , Balakrishna Godavarthi , Matthias Kaehlcke Cc: Zijun Hu , linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, Luiz Augusto von Dentz , linux-arm-msm@vger.kernel.org, Zijun Hu X-Mailer: b4 0.14.3 X-Proofpoint-GUID: QvarWpYoNKj6tmHqfUJyjPHQwXbU5MJF X-Proofpoint-ORIG-GUID: QvarWpYoNKj6tmHqfUJyjPHQwXbU5MJF X-Authority-Analysis: v=2.4 cv=PuKjqQM3 c=1 sm=1 tr=0 ts=6a394c26 cx=c_pps a=bS7HVuBVfinNPG3f6cIo3Q==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=ItwU2R1ETwvooMAJNeQA:9 a=QEXdDO2ut3YA:10 a=vBUdepa8ALXHeOFLBtFW:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwNjIyMDE0NyBTYWx0ZWRfXzAyXdAr5jh48 3r2P7QJ4+ocR7AGj19wkQCmdLYXVNZ/ETMIRYHts32SmQsLmvgkzpvcCNKl3WOn0rypGgvgyCoC NA8kW1O8ksqUvjmT74egl6ie6vwcmbk= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjIyMDE0NyBTYWx0ZWRfXx5LhBGCfNiuv JqAd8ogVROd5TBkxtrkTlpdPwpn8BEp7skKIUu5K50YrqpeAyr83stQ4ozO9aU3czjPU/IPqW8X izILwBf7EWZ+A6+AC/aRoUkaJD4OAJ3GsKAYvvFb+ci+nrJ4qvLjBOUDR/ZB/4Gxt/OydsjfhYl 4m5O0pt2y/wW2cN6wkWomFxOPqQzEUyPW0wh3b8+aiV8yjAgv9I3mzqQG+ghpBJS0v7cU4liRfP Boki/x8f2FZy5V/HTesfQ9tT+7aLDLpUvt24O1dQXBnK/L/xuUR/sMIlGHn6yikt2+sLDrYyvwo 20K8Y7aBdHlhs7Bz/6TNjzG5V0k76LXZXr0BovtctrNAPOOP1fl9T2GBjSd/RSQTWKp1faMSUH5 UWEbAathOb2erHFolNnWN9ZS97h9Kp+njdqmbt0+5tdt4Kf61ZpToi9AMcBYTGAh1b9kGtajDhT cEbZeyuqMPfY2iY0hxQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-22_02,2026-06-22_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 suspectscore=0 priorityscore=1501 phishscore=0 impostorscore=0 adultscore=0 clxscore=1011 bulkscore=0 spamscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606220147 For VSC 0xfc14 to set BD_ADDR, the endianness of the BDA parameter is opposite to other HCI commands like HCI_Create_Connection, but btusb_set_bdaddr_wcn6855() sends the address without swapping byte order, resulting in a wrong BD_ADDR being set. Fix by swapping the input address before issuing the command. Fixes: b40f58b97386 ("Bluetooth: btusb: Add Qualcomm Bluetooth SoC WCN6855 support") Signed-off-by: Zijun Hu --- drivers/bluetooth/btusb.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 6f965c313dff..e78277e24cd8 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -3075,14 +3075,15 @@ static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, const bdaddr_t *bdaddr) { + bdaddr_t bdaddr_swapped; struct sk_buff *skb; - u8 buf[6]; long ret; - memcpy(buf, bdaddr, sizeof(bdaddr_t)); + baswap(&bdaddr_swapped, bdaddr); - skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, - HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); + skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(bdaddr_swapped), + &bdaddr_swapped, HCI_EV_CMD_COMPLETE, + HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { ret = PTR_ERR(skb); bt_dev_err(hdev, "Change address command failed (%ld)", ret); -- 2.34.1