Bluetooth: btusb: Implement hdev->prevent_wake (b7d0bf11) · Commits · 戴 / test

Implement the prevent_wake hook by checking device_may_wakeup on the usb interface. This prevents the Bluetooth core from enabling scanning when the device isn't expected to wake from suspend. Signed-off-by:

Abhishek Pandit-Subedi <abhishekpandit@chromium.org> Reviewed-by:

Alain Michaud <alainm@chromium.org> Signed-off-by:

Marcel Holtmann <marcel@holtmann.org>

drivers/bluetooth/btusb.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -3698,6 +3698,13 @@ static void btusb_check_needs_reset_resume(struct usb_interface *intf)
		interface_to_usbdev(intf)->quirks \|= USB_QUIRK_RESET_RESUME;
		}

		static bool btusb_prevent_wake(struct hci_dev *hdev)
		{
		struct btusb_data *data = hci_get_drvdata(hdev);

		return !device_may_wakeup(&data->udev->dev);
		}

		static int btusb_probe(struct usb_interface *intf,
		const struct usb_device_id *id)
		{
		@@ -3831,6 +3838,7 @@ static int btusb_probe(struct usb_interface *intf,
		hdev->flush = btusb_flush;
		hdev->send = btusb_send_frame;
		hdev->notify = btusb_notify;
		hdev->prevent_wake = btusb_prevent_wake;

		#ifdef CONFIG_PM
		err = btusb_config_oob_wake(hdev);

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