linux-kernel - Re: [PATCH v5 0/9] Add generic support for kdump DT properties

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Date:   Mon, 23 Aug 2021 09:52:20 -0500
From:   Rob Herring <robh@...nel.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Russell King <linux@...linux.org.uk>,
        Nicolas Pitre <nico@...xnic.net>,
        Ard Biesheuvel <ardb@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Nick Kossifidis <mick@....forth.gr>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Frank Rowand <frowand.list@...il.com>,
        Dave Young <dyoung@...hat.com>, Baoquan He <bhe@...hat.com>,
        Vivek Goyal <vgoyal@...hat.com>,
        Mike Rapoport <rppt@...nel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "open list:BROADCOM NVRAM DRIVER" <linux-mips@...r.kernel.org>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        kexec@...ts.infradead.org,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 0/9] Add generic support for kdump DT properties

On Mon, Aug 23, 2021 at 5:13 AM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>
> Hi Rob,
>
> On Sun, Aug 15, 2021 at 5:25 PM Rob Herring <robh@...nel.org> wrote:
> > On Wed, Aug 11, 2021 at 10:50:58AM +0200, Geert Uytterhoeven wrote:
> > > This patch series adds generic support for parsing DT properties related
> > > to crash dump kernels ("linux,elfcorehdr" and "linux,elfcorehdr" under
> > > the "/chosen" node), makes use of it on arm32, and performs a few
> > > cleanups.  It is an evolution of the combination of [1] and [2].
> >
> > The DT bits look fine to me. How do you expect this to be merged? I'm
> > happy to take it if arch maintainers can ack it.
>
> I had hoped you could take the series...

My current thought is I'll take 2-5, 7 and 8 given that's what I have
acks for and the others can be applied independently.

> > > The series consists of 6 parts:
> > >   1. Patch 1 prepares architecture-specific code (needed for MIPS only)
> > >      to avoid duplicating elf core header reservation later.
> > >   2. Patch 2 prepares the visibility of variables used to hold
> > >      information retrieved from the DT properties.
> > >   3. Patches 3-5 add support to the FDT core for handling the
> > >      properties.
> > >      This can co-exist safely with architecture-specific handling, until
> > >      the latter has been removed.
> >
> > Looks like patch 5 doesn't have any dependencies with the series?
>
> Indeed. So you can take it independently.
>
> > >   4. Patch 6 removes the non-standard handling of "linux,elfcorehdr" on
> > >      riscv.
> >
> > I thought this should be applied for 5.14?
>
> Me too, but unfortunately that hasn't happened yet...

Buried in the middle of this series is not going to encourage it to be
picked up as a fix.

Rob