Message-ID: <CAK8P3a0zjb1QhmffswWs0TAg2-qRtSEORTuufMSf0_0NamzXRQ@mail.gmail.com>
Date:   Thu, 5 Oct 2017 09:34:49 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Palmer Dabbelt <palmer@...belt.com>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Olof Johansson <olof@...om.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        patches@...ups.riscv.org, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, albert@...ive.com,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Michal Marek <mmarek@...e.com>,
        Will Deacon <will.deacon@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Boqun Feng <boqun.feng@...il.com>,
        Oleg Nesterov <oleg@...hat.com>,
        Ingo Molnar <mingo@...hat.com>,
        DTML <devicetree@...r.kernel.org>
Subject: Re: RISC-V Linux Port v9

On Thu, Oct 5, 2017 at 2:21 AM, Palmer Dabbelt <palmer@...belt.com> wrote:
> On Tue, 26 Sep 2017 23:08:02 PDT (-0700), Arnd Bergmann wrote:
>> On Tue, Sep 26, 2017 at 6:56 PM, Palmer Dabbelt <palmer@...belt.com> wrote:
>>> As per suggestions on our v8 patch set, I've split the core architecture code
>>> out from our drivers and would like to submit this patch set to be included
>>> into linux-next, with the goal being to be merged in during the next merge
>>> window.  This patch set is based on 4.14-rc2, but if it's better to have it
>>> based on something else then I can change it around.
>>
>> -rc2 is good, just don't rebase it any more. I'd suggest that at the point this
>> becomes part of linux-next, you stop modifying the patches further and
>> move to adding any additional changes as patches on top.
>
> Sounds good.  I've gotten a kernel.org account now, so I've gone ahead and
> signed a "for-linux-next" tag that contains this patch set.  I'm going to treat
> what's here as an official pull request into linux-next and therefor I won't be
> rewriting history any more.  If I understand everything correctly, once I'm in
> linux-next I'm meant to update that tag with commits that are ready to go?
>
> Is there anything further I should do in order to get that tag merged into
> linux-next?

Please be aware that Stephen has announced that there won't be any
linux-next trees until the end of the month, which will be the kernel
summit in Prague.

https://lkml.org/lkml/2017/9/29/13

It may be worth sending him a request to include your tree when
he returns, I assume there will be a long email backlog and he might
miss it otherwise.

>>>  * I cleaned up the defconfigs -- there's actually now just one, and it's
>>>    empty.  For now I think we're OK with what the kernel sets as defaults, but
>>>    I anticipate we'll begin to expand this as people start to use the port
>>>    more.
>>
>> The kernel defaults are not really as sensible as one would hope. Maybe
>> go through your previous defconfig once more and pick up the items that
>> made sense.
>
> I was a bit surprised at the defaults: for example, I'd expect things like
> CONFIG_PCI and CONFIG_NET to be enabled by default.  I guess I just assumed
> that since technically we have a working kernel without those that it was fine
> to just stick with the defaults.

Some of the defaults are really pretty random and are only like this for
historic reasons.

> Looking at our old defconfig, I'd pick
>
>   CONFIG_PCI=y
>   CONFIG_NAMESPACES=y
>   CONFIG_NET=y
>   CONFIG_UNIX=y
>   CONFIG_INET=y
>   CONFIG_DEVTMPFS=y
>   CONFIG_EXT2_FS=y
>   CONFIG_TMPFS=y
>
> does that seem reasonable?

Mostly yes, but please disable ext2 and use ext4 instead.

       Arnd

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