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From:   Max Filippov <jcmvbkbc@gmail.com>
Date:   Tue, 26 Oct 2021 05:30:26 -0700
Message-ID: <CAMo8BfLN0Q+_K2fP9KVBPyqAMahtCSZB1MwLBRtQYcK3R35N7Q@mail.gmail.com>
Subject: Re: [PATCH 2/2] futex: remove futex_cmpxchg detection
To:     Arnd Bergmann <arnd@kernel.org>
Cc:     Peter Zijlstra <peterz@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Arnd Bergmann <arnd@arndb.de>,
        Vineet Gupta <vgupta@kernel.org>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>, Guo Ren <guoren@kernel.org>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Heiko Carstens <hca@linux.ibm.com>,
        Vasily Gorbik <gor@linux.ibm.com>,
        Christian Borntraeger <borntraeger@de.ibm.com>,
        Alexander Gordeev <agordeev@linux.ibm.com>,
        Yoshinori Sato <ysato@users.sourceforge.jp>,
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        Davidlohr Bueso <dave@stgolabs.net>,
        =?UTF-8?Q?Andr=C3=A9_Almeida?= <andrealmeid@collabora.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Mike Rapoport <rppt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Anshuman Khandual <anshuman.khandual@arm.com>,
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On Tue, Oct 26, 2021 at 3:06 AM Arnd Bergmann <arnd@kernel.org> wrote:
>
> From: Arnd Bergmann <arnd@arndb.de>
>
> Now that all architectures have a working futex implementation
> in any configuration, remove the runtime detection code.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  arch/arc/Kconfig              |  1 -
>  arch/arm/Kconfig              |  1 -
>  arch/arm64/Kconfig            |  1 -
>  arch/csky/Kconfig             |  1 -
>  arch/m68k/Kconfig             |  1 -
>  arch/riscv/Kconfig            |  1 -
>  arch/s390/Kconfig             |  1 -
>  arch/sh/Kconfig               |  1 -
>  arch/um/Kconfig               |  1 -
>  arch/um/kernel/skas/uaccess.c |  1 -
>  arch/xtensa/Kconfig           |  1 -
>  init/Kconfig                  |  8 --------
>  kernel/futex/core.c           | 35 -----------------------------------
>  kernel/futex/futex.h          |  6 ------
>  kernel/futex/syscalls.c       | 22 ----------------------
>  15 files changed, 82 deletions(-)

For xtensa:
Acked-by: Max Filippov <jcmvbkbc@gmail.com>

-- 
Thanks.
-- Max