linux-kernel - Re: [PATCH 2/2] futex: remove futex

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Message-ID: <20211026202625.GU7074@brightrain.aerifal.cx>
Date:   Tue, 26 Oct 2021 16:26:27 -0400
From:   Rich Felker <dalias@...c.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Arnd Bergmann <arnd@...db.de>,
        Vineet Gupta <vgupta@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Guo Ren <guoren@...nel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Jeff Dike <jdike@...toit.com>,
        Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Chris Zankel <chris@...kel.net>,
        Max Filippov <jcmvbkbc@...il.com>,
        Darren Hart <dvhart@...radead.org>,
        Davidlohr Bueso <dave@...olabs.net>,
        André Almeida <andrealmeid@...labora.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mike Rapoport <rppt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Anshuman Khandual <anshuman.khandual@....com>,
        linux-snps-arc@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-csky@...r.kernel.org,
        linux-m68k@...ts.linux-m68k.org, linux-riscv@...ts.infradead.org,
        linux-s390@...r.kernel.org, linux-sh@...r.kernel.org,
        linux-um@...ts.infradead.org, linux-xtensa@...ux-xtensa.org
Subject: Re: [PATCH 2/2] futex: remove futex_cmpxchg detection

On Tue, Oct 26, 2021 at 12:03:48PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> Now that all architectures have a working futex implementation
> in any configuration, remove the runtime detection code.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.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(-)

Acked-by: Rich Felker <dalias@...c.org>