Re: [PATCH 0/5] s390: rework compat wrapper generation

From: Martin Schwidefsky
Date: Fri Jan 18 2019 - 03:49:00 EST


On Thu, 17 Jan 2019 21:19:20 +0100
Heiko Carstens <heiko.carstens@xxxxxxxxxx> wrote:

> On Thu, Jan 17, 2019 at 05:21:50PM +0100, Arnd Bergmann wrote:
> > On Thu, Jan 17, 2019 at 2:36 PM Heiko Carstens
> > <heiko.carstens@xxxxxxxxxx> wrote:
> > >
> > > On Wed, Jan 16, 2019 at 02:15:18PM +0100, Arnd Bergmann wrote:
> >
> > > > I did not test the changes at runtime, but I looked at the
> > > > generated object code, which seems fine here and includes
> > > > the same conversions as before.
> > >
> > > All looks good and seems to work fine. This is a very nice
> > > simplification of our compat code, even if it adds some dead code to
> > > the kernel image.
> > >
> > > I did some tests and it all looks good. Also the generated code looks
> > > fine. So, if nothing breaks, this will go upstream with next merge
> > > window via the s390 tree.
> > >
> > > Thanks again for your work!
> >
> > Awesome, thanks for testing it so quickly and agreeing to merge it!
> >
> > There is a dependency that I now have for my y2038 syscall series
> > of course, so I'd need to have those patches on top of the s390 series.
> >
> > I think we can either have a shared git branch that gets merged both
> > into your s390 tree and my y2038 tree, or we merge it only through
> > my tree, with your Ack.
> >
> > Does that work for you?
>
> I'll discuss this with Martin tomorrow, however I think a shared git
> branch would be the best solution. I want to get as much testing as
> possible for this patch set, which means this must also be in the s390
> tree.

Yes, a shared git branch seems like the best solutoin, this is now
available as a topic branch on the s390/linux:

git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git compat

The branch has been merged to the features branch for v5.1.

Thanks for the work on the compat code, good stuff!

--
blue skies,
Martin.

"Reality continues to ruin my life." - Calvin.