linux-kernel - Re: [GIT PULL] CRIS: Drop support for the CRIS-port

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Message-ID: <CAK8P3a2LRyHmQ1=bFwrW9a3RR53W0CiiakNTg2823utAnVpBmQ@mail.gmail.com>
Date:   Mon, 12 Mar 2018 21:21:25 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Jesper Nilsson <jesper.nilsson@...s.com>
Cc:     Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Michal Simek <monstr@...str.eu>,
        Andi Kleen <ak@...ux.intel.com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        linux-cris-kernel@...s.com, Petr Mladek <pmladek@...e.com>,
        Peter Zijlstra <peterz@...radead.org>,
        adi-buildroot-devel@...ts.sourceforge.net,
        Steven Rostedt <rostedt@...dmis.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Jesper Nilsson <jesper@....nu>,
        Greentime Hu <green.hu@...il.com>, Tejun Heo <tj@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vincent Chen <deanbo422@...il.com>,
        Dave Young <dyoung@...hat.com>
Subject: Re: [GIT PULL] CRIS: Drop support for the CRIS-port

On Sun, Mar 11, 2018 at 12:05 PM, Jesper Nilsson
<jesper.nilsson@...s.com> wrote:
> Hi Arnd,
>
> As promised, pull the below tag for the removal of the CRIS-port.
> There are still a few references to the CRIS port left, and they
> can be grouped into two categories:
>
> - Examples or references to the CRIS port as provenance.
>         These I believe can be left as is.
>
> - The workarounds for CRIS not having "unpacked" structs.
>         When I looked at it 10 years ago, CRIS was the only port
>         that needed explicit alignment of some structs,
>         due to pointers being valid at any byte offset in CRIS,
>         which would wreak havoc with code that assumed that the
>         lower bits of a pointer are free to use as flags.
>         I'm leaving these in until we can say that no newer
>         port has the same problem.
>
> Best regards,

Hi Jesper,

Thanks for the patch! I had done a slightly different approach, but
am merging your changes into my tree now. I already have separate
patches for each driver subsystem, so I'll keep my versions, having
already made sure that your changes were identical.

For Documentation/features and the Kconfig files that have lists
of architectures, I also have separate patches that do the changes
for all architectures, to avoid touching those files (up to) eight times
for one trivial change each. I could redo those, but since your patch
conflicts with David Howell's patch for mn10300, it's easier to keep
what I already have.

This leaves basically the removal of arch/cris along with the MAINTAINER
file update. I'm keeping the patch I did, but change the author and
changelog text to what you sent, with my Signed-off-by and a list
of my modifications) added below.

Hope that works for you.

     Arnd