Re: FAILED: patch "[PATCH] s390/zcrypt: reinit ap queue state machine during device" failed to apply to 4.19-stable tree

[Greg KH <gregkh@linuxfoundation.org>]

On Thu, Dec 06, 2018 at 12:14:59PM +0100, Harald Freudenberger wrote:
> On 06.12.18 09:57, gregkh@linuxfoundation.org wrote:
> > The patch below does not apply to the 4.19-stable tree.
> > If someone wants it applied there, or to any other stable or longterm
> > tree, then please email the backport, including the original git commit
> > id to <stable@vger.kernel.org>.
> >
> > thanks,
> >
> > greg k-h
> >
> > ------------------ original commit in Linus's tree ------------------
> >
> > From 104f708fd1241b22f808bdf066ab67dc5a051de5 Mon Sep 17 00:00:00 2001
> > From: Harald Freudenberger <freude@linux.ibm.com>
> > Date: Fri, 9 Nov 2018 14:59:24 +0100
> > Subject: [PATCH] s390/zcrypt: reinit ap queue state machine during device
> >  probe
> 
> <rest of the patch removed>
> 
> This fix is not needed for the 4.19 stable tree as there is no exploiter
> for the ap mask feature in that kernel. The exploiter will come with
> the vfio device driver for the ap bus which went into the 4.20 kernel.

Great, thanks for letting me know.

greg k-h