linux-kernel - Re: [PATCH 06/20] riscv: Remove ARCH_HAS_ATOMIC64_DEC_IF

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Date:   Thu, 8 Feb 2018 23:10:01 +0100
From:   Ulf Magnusson <ulfalizer@...il.com>
To:     Palmer Dabbelt <palmer@...ive.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        tfiga@...omium.org, paul.burton@...s.com,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Hans-Christian Noren Egtvedt <egtvedt@...fundet.no>,
        Linus Walleij <linus.walleij@...aro.org>,
        Vineet Gupta <vgupta@...opsys.com>,
        mgorman@...hsingularity.net, Christoph Hellwig <hch@....de>,
        mina86@...a86.com, Rob Herring <robh@...nel.org>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Paul Mackerras <paulus@...abs.org>,
        Will Deacon <will.deacon@....com>,
        Tony Lindgren <tony@...mide.com>,
        Nicholas Piggin <npiggin@...il.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Albert Ou <albert@...ive.com>, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH 06/20] riscv: Remove ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select

On Thu, Feb 8, 2018 at 7:34 PM, Palmer Dabbelt <palmer@...ive.com> wrote:
> On Sun, 04 Feb 2018 17:21:18 PST (-0800), ulfalizer@...il.com wrote:
>>
>> The ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE symbol was removed in
>> commit 51a021244b9d ("atomic64: no need for
>> CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE").
>>
>> Remove the ARCH_HAS_ATOMIC64_DEC_IS_POSITIVE select from RISCV.
>>
>> Discovered with the
>>
>> https://github.com/ulfalizer/Kconfiglib/blob/master/examples/list_undefined.py
>> script.
>>
>> Signed-off-by: Ulf Magnusson <ulfalizer@...il.com>
>> ---
>>  arch/riscv/Kconfig | 1 -
>>  1 file changed, 1 deletion(-)
>>
>> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
>> index b6722c246d9c..ff69c77b9e78 100644
>> --- a/arch/riscv/Kconfig
>> +++ b/arch/riscv/Kconfig
>> @@ -8,7 +8,6 @@ config RISCV
>>         select OF
>>         select OF_EARLY_FLATTREE
>>         select OF_IRQ
>> -       select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
>>         select ARCH_WANT_FRAME_POINTERS
>>         select CLONE_BACKWARDS
>>         select COMMON_CLK
>
>
> Thanks!
>
> Reviewed-by: Palmer Dabbelt <palmer@...ive.com>

I didn't have a particular tree in mind for these patches by the way,
so feel free to pull it in yourselves.

Cheers,
Ulf