bluetooth-next pull request for net-next:
core:
- hci_core: Rate limit the logging of invalid ISO handle
- hci_sync: make hci_cmd_sync_run_once return -EEXIST if exists
- hci_event: fix locking in hci_conn_request_evt() with HCI_PROTO_DEFER
- hci_event: fix potential UAF in SSP passkey handlers
- HCI: Avoid a couple -Wflex-array-member-not-at-end warnings
- L2CAP: CoC: Disconnect if received packet size exceeds MPS
- L2CAP: Add missing chan lock in l2cap_ecred_reconf_rsp
- L2CAP: Fix printing wrong information if SDU length exceeds MTU
- SCO: check for codecs->num_codecs == 1 before assigning to sco_pi(sk)->codec
drivers:
- btusb: MT7922: Add VID/PID 0489/e174
- btusb: Add Lite-On 04ca:3807 for MediaTek MT7921
- btusb: Add MT7927 IDs ASUS ROG Crosshair X870E Hero, Lenovo Legion Pro 7
16ARX9, Gigabyte Z790 AORUS MASTER X, MSI X870E Ace Max, TP-Link
Archer TBE550E, ASUS X870E / ProArt X870E-Creator.
- btusb: Add MT7902 IDs 13d3/3579, 13d3/3580, 13d3/3594, 13d3/3596, 0e8d/1ede
- btusb: MediaTek MT7922: Add VID 0489 & PID e11d
- btintel: Add support for Scorpious Peak2 support
- btintel: Add support for Scorpious Peak2F support
- btintel_pcie: Add device id of Scorpius Peak2, Nova Lake-PCD-H
- btintel_pcie: Add device id of Scorpious2, Nova Lake-PCD-S
- btmtk: Add reset mechanism if downloading firmware failed
- btmtk: Add MT6639 (MT7927) Bluetooth support
- btmtk: fix ISO interface setup for single alt setting
- btmtk: add MT7902 SDIO support
- Bluetooth: btmtk: add MT7902 MCU support
- btbcm: Add entry for BCM4343A2 UART Bluetooth
- qca: enable pwrseq support for wcn39xx devices
- hci_qca: Fix BT not getting powered-off on rmmod
- hci_qca: disable power control for WCN7850 when bt_en is not defined
- hci_qca: Fix missing wakeup during SSR memdump handling
- hci_ldisc: Clear HCI_UART_PROTO_INIT on error
- mmc: sdio: add MediaTek MT7902 SDIO device ID
- hci_ll: Enable BROKEN_ENHANCED_SETUP_SYNC_CONN for WL183x
Bluetooth: hci_qca: Fix missing wakeup during SSR memdump handling
When a Bluetooth controller encounters a coredump, it triggers the
Subsystem Restart (SSR) mechanism. The controller first reports the
coredump data and, once the upload is complete, sends a hw_error
event. The host relies on this event to proceed with subsequent
recovery actions.
If the host has not finished processing the coredump data when the
hw_error event is received, it waits until either the processing is
complete or the 8-second timeout expires before handling the event.
The current implementation clears QCA_MEMDUMP_COLLECTION using
clear_bit(), which does not wake up waiters sleeping in
wait_on_bit_timeout(). As a result, the waiting thread may remain
blocked until the timeout expires even if the coredump collection
has already completed.
Fix this by clearing QCA_MEMDUMP_COLLECTION with
clear_and_wake_up_bit(), which also wakes up the waiting thread and
allows the hw_error handling to proceed immediately.
Test case:
- Trigger a controller coredump using:
hcitool cmd 0x3f 0c 26
- Tested on QCA6390.
- Capture HCI logs using btmon.
- Verify that the delay between receiving the hw_error event and
initiating the power-off sequence is reduced compared to the
timeout-based behavior.
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Shuai Zhang <shuai.zhang@oss.qualcomm.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
1 file changed