8377545650
When SUSPEND_DISCONNECTING bit is set that means Disconnect is pending but the code was evaluating if the list is empty before calling hci_conn_del which does the actual cleanup and remove the connection from the list thus the bit is never cleared causing the suspend procedure to always timeout when there are connections to be disconnected: Suspend/Resume - Success 5 (Pairing - Legacy) - waiting done Set the system into Suspend via force_suspend = mgmt-tester: Suspend/Resume - Success 5 (Pairing -.. 17:03:13.200458 = mgmt-tester: Set the system into Suspend via force_suspend 17:03:13.205812 < HCI Command: Write Scan E.. (0x03|0x001a) plen 1 #122 [hci0] 17:03:13.213561 Scan enable: No Scans (0x00) > HCI Event: Command Complete (0x0e) plen 4 #123 [hci0] 17:03:13.214710 Write Scan Enable (0x03|0x001a) ncmd 1 Status: Success (0x00) < HCI Command: Disconnect (0x01|0x0006) plen 3 #124 [hci0] 17:03:13.215830 Handle: 42 Reason: Remote Device Terminated due to Power Off (0x15) > HCI Event: Command Status (0x0f) plen 4 #125 [hci0] 17:03:13.216602 Disconnect (0x01|0x0006) ncmd 1 Status: Success (0x00) > HCI Event: Disconnect Complete (0x05) plen 4 #126 [hci0] 17:03:13.217342 Status: Success (0x00) Handle: 42 Reason: Remote Device Terminated due to Power Off (0x15) @ MGMT Event: Device Disconn.. (0x000c) plen 8 {0x0002} [hci0] 17:03:13.217688 BR/EDR Address: 00:AA:01:01:00:00 (Intel Corporation) Reason: Connection terminated by local host for suspend (0x05) @ MGMT Event: Device Disconn.. (0x000c) plen 8 {0x0001} [hci0] 17:03:13.217688 BR/EDR Address: 00:AA:01:01:00:00 (Intel Corporation) Reason: Connection terminated by local host for suspend (0x05) Suspend/Resume - Success 5 (Pairing - Legacy) - test timed out = mgmt-tester: Suspend/Resume - Success 5 (Pairing -.. 17:03:13.939317 Suspend/Resume - Success 5 (Pairing - Legacy) - teardown = mgmt-tester: Suspend/Resume - Success 5 (Pairing -.. 17:03:13.947267 [ 13.284291] Bluetooth: hci0: Timed out waiting for suspend events [ 13.287324] Bluetooth: hci0: Suspend timeout bit: 6 Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.