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Bluetooth: hci_sync: fix BR/EDR wakeup bug

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[ Upstream commit d4b70ba1ea ]

when Bluetooth set the event mask and enter suspend, the controller
has hci mode change event coming, it cause controller can not enter
sleep mode. so it should to set the hci mode change event mask before
enter suspend.

Signed-off-by: clancy shang <clancy.shang@quectel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
clancy shang 2023-12-18 18:24:17 +08:00 committed by Greg Kroah-Hartman
parent a836b1c333
commit 6d95ade9e6
1 changed files with 6 additions and 4 deletions
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10
net/bluetooth/hci_sync.c
View file

@ -3780,12 +3780,14 @@ static int hci_set_event_mask_sync(struct hci_dev *hdev)
if (lmp_bredr_capable(hdev)) {
events[4] |= 0x01; /* Flow Specification Complete */
/* Don't set Disconnect Complete when suspended as that
* would wakeup the host when disconnecting due to
* suspend.
/* Don't set Disconnect Complete and mode change when
* suspended as that would wakeup the host when disconnecting
* due to suspend.
*/
if (hdev->suspended)
if (hdev->suspended) {
events[0] &= 0xef;
events[2] &= 0xf7;
}
} else {
/* Use a different default for LE-only devices */
memset(events, 0, sizeof(events));