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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 1441054443
commit e266b7b2d4
1 changed files with 6 additions and 4 deletions
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10
net/bluetooth/hci_sync.c
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@@ -3800,12 +3800,14 @@ 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));