Re: [PATCH v1] HID: hid-elecom: extend to fix descriptor for HUGE trackball

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Thu, Oct 19, 2017 at 01:07:25PM +0200, Jiri Kosina wrote:
> On Thu, 19 Oct 2017, Greg Kroah-Hartman wrote:
> 
> > > Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> > > Cc: <stable@stable@vger.kernel.org> # 4.12.x
> > > Cc: <stable@stable@vger.kernel.org> # 4.9.x: 0bb7a37: HID: elecom: ... DEFT trackballs
> > > Cc: <stable@stable@vger.kernel.org> # 4.4.x: 0bb7a37: HID: elecom: ... DEFT trackballs
> > 
> > Commit 0bb7a37 is a "new feature", and as such, shouldn't be backported
> > to older kernels, right?
> > 
> > I need a very strong agrument from the HID maintainer as to why this
> > should be accepted to the older kernels...
> 
> Hi Greg,
> 
> it basically is a new device ID addition (with a small glue code applied 
> only to that device ID), and as such a left the stable markers there. But 
> I don't have strong preference either way -- if you feel that this is 
> beyond the 'new device ID' policy, I wouldn't object strongly.

I think it's a bit more than just the normal "add a new id or quirk"
logic here.

For new devices, it's always best to just update to a newer kernel,
there's no reason anyone with these devices should be using 4.9 or older
:)

thanks,

greg k-h