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Wed, 17 Apr 2024 12:52:51 GMT Received: from zijuhu-gv.qualcomm.com (10.80.80.8) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Wed, 17 Apr 2024 05:52:50 -0700 From: Zijun Hu To: , , CC: Subject: [PATCH v2 0/4] Fix 2 tool btattach issues for QCA controllers Date: Wed, 17 Apr 2024 20:52:12 +0800 Message-ID: <1713358336-29619-1-git-send-email-quic_zijuhu@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1710914907-30012-1-git-send-email-quic_zijuhu@quicinc.com> References: <1710914907-30012-1-git-send-email-quic_zijuhu@quicinc.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nasanex01a.na.qualcomm.com (10.52.223.231) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: GTZwgDprpIikNAL4bJkRcfkpjYhnVtG6 X-Proofpoint-GUID: GTZwgDprpIikNAL4bJkRcfkpjYhnVtG6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-04-17_10,2024-04-16_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 impostorscore=0 malwarescore=0 bulkscore=0 mlxscore=0 adultscore=0 suspectscore=0 mlxlogscore=793 priorityscore=1501 clxscore=1015 spamscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2404010003 definitions=main-2404170087 BT chip vendor and customer often needs to use tool btattach to perform various development,verification and evaluation test for vendor's BT module, but tool btattach is not working fine for any QCA BT controller currently, this patch series are to solve this issue. There are many QCA soc types defined by drivers/bluetooth/btqca.h enum qca_btsoc_type { QCA_INVALID = -1, QCA_AR3002, QCA_ROME, QCA_WCN3988, QCA_WCN3990, QCA_WCN3998, QCA_WCN3991, QCA_QCA2066, QCA_QCA6390, QCA_WCN6750, QCA_WCN6855, QCA_WCN7850, QCA_MAX, }; and every soc type stands for a kind of QCA BT controller, this patch series are to solve below 2 tool btattach issues for QCA soc types: 1) tool btattach will cause kernel crash when used for QCA_ROME 2) tool btattach does not support any other soc type except QCA_ROME For hci_uart derived from tool btattach, it is allocated by hci_ldisc and is Non-serdev device, its @serdev is NULL and its soc type is currenlty hard coded as QCA_ROME. The 1st issue is caused by dereferencing nullptr hu->serdev, in order to solve the 2nd issue, a new ioctl is introduced for user to specify soc type by a new added tool btattach option. Changes v1 -> v2 - Add patch 2/4 - Correct cover letter Zijun Hu (4): Bluetooth: qca: Fix crash caused by tool btattach for QCA_ROME Bluetooth: qca: Fix nullptr dereference for non-serdev devices Bluetooth: hci_ldisc: Add a ioctl HCIUARTSETPROTODATA Bluetooth: qca: Fix wrong soc type returned for tool btattach drivers/bluetooth/btqca.h | 1 + drivers/bluetooth/hci_ldisc.c | 10 ++++++++++ drivers/bluetooth/hci_qca.c | 19 +++++++++++++------ drivers/bluetooth/hci_uart.h | 3 +++ 4 files changed, 27 insertions(+), 6 deletions(-)