Re: [PATCH 4.4 009/115] Bluetooth: btusb: driver to enable the usb-wakeup feature

gregkh
2017-12-23T16:14:29Z

On Sat, Dec 23, 2017 at 03:53:57PM +0000, Ghorai, Sukumar wrote:
> >> > included in 4.14-rc1, so something needs to be done in Linus's tree
> >> > to resolve this issue, otherwise people will hit this as a
> >> > regression when moving to 4.14 or newer.
> >>
> >> Well, I wouldn't object to reverting it in Linus' tree too, since
> >> AFAIK, this is something that can be configured by user-space policy,
> >> no? And that way, no user space is surprised by the sudden additional
> >> requirements on managing bluetooth wakeup.
> Wakeup from Bluetooth will be observed as long as USB wakeup is configured from
> user space or kernel space or connected to any Bluetooth HID devices.
> And we don't want to support the wakeup from BT HID devide.
> The solution looks like disable Bluetooth in S3 entry?
> Looks we are trying to hide the other problems in a system, and reverting this patch.
>
> >
> >I agree, please work with the bluetooth developers to make this happen.
> >They seem to be ignoring patches right now, so you might have to kick them a few
> >times :(
> Do you suggest submitter to send the revert request to 4.12 and 4.14 kernel?

4.12 is long end-of-life, I don't know what you expect to happen there.

4.14 is already released, this needs to be done for 4.15 first, right?

thanks,

greg k-h