linux-kernel - Re: [PATCH 1/5] asm-generic/uaccess.h: remove __strncpy_from_user/__strnlen

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Message-ID: <CAMuHMdXr6gxbJu+otHV=PhoXvM7aoshs_A-SVpTmYw1iDdiqsg@mail.gmail.com>
Date:   Mon, 17 May 2021 09:42:02 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Linux-Arch <linux-arch@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>, Christoph Hellwig <hch@....de>,
        Al Viro <viro@...iv.linux.org.uk>,
        Vineet Gupta <vgupta@...opsys.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Brian Cain <bcain@...eaurora.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Jeff Dike <jdike@...toit.com>,
        Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Sid Manning <sidneym@...eaurora.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mike Rapoport <rppt@...nel.org>,
        arcml <linux-snps-arc@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "moderated list:H8/300 ARCHITECTURE" 
        <uclinux-h8-devel@...ts.sourceforge.jp>,
        "open list:QUALCOMM HEXAGON..." <linux-hexagon@...r.kernel.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        linux-um <linux-um@...ts.infradead.org>
Subject: Re: [PATCH 1/5] asm-generic/uaccess.h: remove __strncpy_from_user/__strnlen_user

On Sat, May 15, 2021 at 12:10 AM Arnd Bergmann <arnd@...nel.org> wrote:
> From: Arnd Bergmann <arnd@...db.de>
>
> This is a preparation for changing over architectures to the
> generic implementation one at a time. As there are no callers
> of either __strncpy_from_user() or __strnlen_user(), fold these
> into the strncpy_from_user() strnlen_user() functions to make

... and ...

> each implementation independent of the others.
>
> Many of these implementations have known bugs, but the intention
> here is to not change behavior at all and stay compatible with
> those bugs for the moment.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds