Re: How to merge? (was Re: [PATCH][v4] livepatch/ppc: Enable livepatching on powerpc)

From: Josh Poimboeuf
Date: Mon Mar 07 2016 - 18:22:23 EST


On Mon, Mar 07, 2016 at 11:52:31PM +0100, Jiri Kosina wrote:
> On Mon, 7 Mar 2016, Michael Ellerman wrote:
>
> > > This aligns with my usual workflow, so that'd be my preferred way of doing
> > > things; i.e. you put all the ftrace changes into a separate topic branch,
> > > and then
> > >
> > > - you pull that branch into powerpc#next
> > > - I pull that branch into livepatching tree
> > > - I apply the ppc livepatching support on top of that
> > > - I send a pull request to Linus only after powerpc#next gets merged to
> > > Linus' tree
> > >
> > > Sounds good?
> >
> > Yep, here it is:
> >
> > https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git/log/?h=topic/mprofile-kernel
> >
> > aka:
> >
> > git fetch git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git topic/mprofile-kernel
>
> Excellent, thanks.
>
> > I haven't merged it into my next yet, but I will tomorrow unless you tell me
> > there's something wrong with it.
>
> There is one remaining issue which I think would be really nice to
> have(TM), and that's Steven's Ack for the whole thing :)
>
> For the livepatching part, I don't think we are quite there yet (so maybe
> it'll miss the upcoming merge window anyway).
>
> My primary worry there is what Torsten pointed out, i.e. functions with
> either varargs or more than 8 args needing special care.
>
> Also, I'd like to have this positively reviewed by at least one more
> livepatching maintainer (I am currently looking into it myself, but my
> understanding of powerpc arch is rather low, so the more eyes, the
> better).

It's been a few years but I'll try to dust off my powerpc chops and give
it a proper review.

--
Josh