[v1,0/3] Fix 2 tool btattach issues for QCA controllers

Message

quic_zijuhu April 12, 2024, 4:26 p.m. UTC

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.

Zijun Hu (3):
  Bluetooth: qca: Fix crash caused by tool btattach for QCA_ROME
  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   | 10 ++++++++--
 drivers/bluetooth/hci_uart.h  |  3 +++
 4 files changed, 22 insertions(+), 2 deletions(-)