linux-kernel - Re: [PATCH v2 1/1] riscv: Select ARCH_SUPPORTS_ATOMIC

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Message-ID: <mhng-14ddadff-c517-4156-90a7-86d44a2a289a@palmerdabbelt-glaptop1>
Date:   Thu, 18 Jun 2020 14:53:28 -0700 (PDT)
From:   Palmer Dabbelt <palmer@...belt.com>
To:     maochenxi@...in.com
CC:     Paul Walmsley <paul.walmsley@...ive.com>, aou@...s.berkeley.edu,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        maochenxi@...in.com
Subject:     Re: [PATCH v2 1/1] riscv: Select ARCH_SUPPORTS_ATOMIC_RMW by default

On Thu, 04 Jun 2020 22:15:10 PDT (-0700), maochenxi@...in.com wrote:
> Select ARCH_SUPPORTS_ATOMIC_RMW by default to enabel osqlocks.
>
> PS2: Add signed off info.
>
> Signed-off-by: Chenxi Mao <maochenxi@...in.com>
> ---
>  arch/riscv/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index a31e1a41913a..cbdc605d20d9 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -68,6 +68,7 @@ config RISCV
>  	select ARCH_HAS_GCOV_PROFILE_ALL
>  	select HAVE_COPY_THREAD_TLS
>  	select HAVE_ARCH_KASAN if MMU && 64BIT
> +	select ARCH_SUPPORTS_ATOMIC_RMW
>
>  config ARCH_MMAP_RND_BITS_MIN
>  	default 18 if 64BIT

Thanks, this is on for-next.