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Message-ID: <mhng-16f1b957-5cf5-4786-a760-e4ab1fbe83ce@palmer-ri-x1c9a>
Date:   Tue, 20 Jun 2023 13:41:27 -0700 (PDT)
From:   Palmer Dabbelt <palmer@...belt.com>
To:     ndesaulniers@...gle.com
CC:     Conor Dooley <conor@...nel.org>, jszhang@...nel.org,
        llvm@...ts.linux.dev, Paul Walmsley <paul.walmsley@...ive.com>,
        aou@...s.berkeley.edu, Arnd Bergmann <arnd@...db.de>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arch@...r.kernel.org, maskray@...gle.com,
        Ard Biesheuvel <ardb@...nel.org>
Subject:     Re: [PATCH v2 0/4] riscv: enable HAVE_LD_DEAD_CODE_DATA_ELIMINATION

On Tue, 20 Jun 2023 13:32:32 PDT (-0700), ndesaulniers@...gle.com wrote:
> On Tue, Jun 20, 2023 at 4:13 PM Conor Dooley <conor@...nel.org> wrote:
>>
>> On Tue, Jun 20, 2023 at 04:05:55PM -0400, Nick Desaulniers wrote:
>> > On Mon, Jun 19, 2023 at 6:06 PM Palmer Dabbelt <palmer@...belt.com> wrote:
>> > > On Thu, 15 Jun 2023 06:54:33 PDT (-0700), Palmer Dabbelt wrote:
>> > > > On Wed, 14 Jun 2023 09:25:49 PDT (-0700), jszhang@...nel.org wrote:
>> > > >> On Wed, Jun 14, 2023 at 07:49:17AM -0700, Palmer Dabbelt wrote:
>> > > >>> On Tue, 23 May 2023 09:54:58 PDT (-0700), jszhang@...nel.org wrote:
>>
>> > > >> Commit 3b90b09af5be ("riscv: Fix orphan section warnings caused by
>> > > >> kernel/pi") touches vmlinux.lds.S, so to make the merge easy, this
>> > > >> series is based on 6.4-rc2.
>> > > >
>> > > > Thanks.
>> > >
>> > > Sorry to be so slow here, but I think this is causing LLD to hang on
>> > > allmodconfig.  I'm still getting to the bottom of it, there's a few
>> > > other things I have in flight still.
>> >
>> > Confirmed with v3 on mainline (linux-next is pretty red at the moment).
>> > https://lore.kernel.org/linux-riscv/20230517082936.37563-1-falcon@tinylab.org/
>>
>> Just FYI Nick, there's been some concurrent work here from different
>> people working on the same thing & the v3 you linked (from Zhangjin) was
>> superseded by this v2 (from Jisheng).
>
> Ah! I've been testing the deprecated patch set, sorry I just looked on
> lore for "dead code" on riscv-linux and grabbed the first thread,
> without noticing the difference in authors or new version numbers for
> distinct series. ok, nevermind my noise.  I'll follow up with the
> correct patch set, sorry!

Ya, I hadn't even noticed the v3 because I pretty much only look at 
patchwork these days.  Like we talked about in IRC, I'm going to go test 
the merge of this one and see what's up -- I've got it staged at 
<https://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux.git/commit/?h=for-next&id=1bd2963b21758a773206a1cb67c93e7a8ae8a195>, 
though that won't be a stable hash if it's actually broken...

>
>>
>> Cheers,
>> Conor.
>
>
>
> -- 
> Thanks,
> ~Nick Desaulniers

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