linux-kernel - Re: [PATCH] tty: Fix TIOCGPTPEER ioctl definition

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Message-ID: <CAK8P3a1uJc0dNoELw1KWKnc9Lme3HDxR2Coj0-snuCmO4n-81A@mail.gmail.com>
Date:   Tue, 11 Jul 2017 09:30:14 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Gleb Fotengauer-Malinovskiy <glebfm@...linux.org>
Cc:     Aleksa Sarai <asarai@...e.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>,
        Christian Brauner <christian.brauner@...ntu.com>,
        Valentin Rothberg <vrothberg@...e.com>,
        "Dmitry V. Levin" <ldv@...linux.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-alpha@...r.kernel.org,
        "open list:RALINK MIPS ARCHITECTURE" <linux-mips@...ux-mips.org>,
        Parisc List <linux-parisc@...r.kernel.org>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        linux-sh@...r.kernel.org, sparclinux <sparclinux@...r.kernel.org>,
        linux-xtensa@...ux-xtensa.org,
        linux-arch <linux-arch@...r.kernel.org>
Subject: Re: [PATCH] tty: Fix TIOCGPTPEER ioctl definition

On Tue, Jul 11, 2017 at 2:12 AM, Gleb Fotengauer-Malinovskiy
<glebfm@...linux.org> wrote:
> This ioctl does nothing to justify an _IOC_READ or _IOC_WRITE flag
> because it doesn't copy anything from/to userspace to access the
> argument.
>
> Fixes: 54ebbfb1 ("tty: add TIOCGPTPEER ioctl")
> Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@...linux.org>

Acked-by: Arnd Bergmann <arnd@...db.de>