linux-kernel - Re: [PULL REQUEST] Please pull rdma.git

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Message-ID: <20190819121400.GA5058@ziepe.ca>
Date:   Mon, 19 Aug 2019 09:14:00 -0300
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Doug Ledford <dledford@...hat.com>,
        Bernard Metzler <bmt@...ich.ibm.com>,
        "Torvalds, Linus" <torvalds@...ux-foundation.org>,
        linux-rdma <linux-rdma@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PULL REQUEST] Please pull rdma.git

On Mon, Aug 19, 2019 at 12:08:16PM +0200, Geert Uytterhoeven wrote:
> Hi Doug, Bernard,
> 
> On Wed, Aug 14, 2019 at 5:00 PM Doug Ledford <dledford@...hat.com> wrote:
> > Fairly small pull request for -rc3.  I'm out of town the rest of this
> > week, so I made sure to clean out as much as possible from patchworks in
> > enough time for 0-day to chew through it (Yay! for 0-day being back
> > online! :-)).  Jason might send through any emergency stuff that could
> > pop up, otherwise I'm back next week.
> >
> > The only real thing of note is the siw ABI change.  Since we just merged
> > siw *this* release, there are no prior kernel releases to maintain
> > kernel ABI with.  I told Bernard that if there is anything else about
> > the siw ABI he thinks he might want to change before it goes set in
> > stone, he should get it in ASAP.  The siw module was around for several
> > years outside the kernel tree, and it had to be revamped considerably
> > for inclusion upstream, so we are making no attempts to be backward
> > compatible with the out of tree version.  Once 5.3 is actually released,
> > we will have our baseline ABI to maintain.
> 
> [...]
> 
> > - Allow siw to be built on 32bit arches (siw, ABI change, but OK since
> >   siw was just merged this merge window and there is no prior released
> >   kernel to maintain compatibility with and we also updated the
> >   rdma-core user space package to match)
> 
> > Bernard Metzler (1):
> >       RDMA/siw: Change CQ flags from 64->32 bits
> 
> Obviously none of this was ever compiled for a 32-bit platform?!?

It is puzzling that 0-day or anyone testing linux-next hasn't noticed
this in that last 7 weeks are so..

Jason