From: Andi Kleen <andi@firstfloor.org>
To: Paul Fulghum <paulkf@microgate.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: compat_ioctl question
Date: 27 Apr 2007 02:38:56 +0200 [thread overview]
Message-ID: <p73bqha3b33.fsf@bingen.suse.de> (raw)
In-Reply-To: <1177620717.5060.11.camel@amdx2.microgate.com>
Paul Fulghum <paulkf@microgate.com> writes:
>
> 1. define compat_ioctl() file operation for device and
> implement translation code in individual driver
> 2. add COMPATIBLE_IOCTL entry to include/linux/compat_ioctl.h
> to mark an ioctl code as the same in any environment
> 3. add HANDLE_IOCTL entry to fs/compat_ioctl.c with translation code
> implemented in the same file
>
> There is no way to implement #1 for a tty driver without
> modifying the kernel tty code to allow registration of a
> compat_ioctl() handler.
(1) is really the recommended solution for all new code
I would recommend you modify the tty driver to pass compat_ioctl
through through. Should not do very hard.
-Andi
prev parent reply other threads:[~2007-04-26 23:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-26 20:51 compat_ioctl question Paul Fulghum
2007-04-26 21:37 ` Arnd Bergmann
2007-04-26 22:42 ` Paul Fulghum
2007-04-26 22:08 ` Arnd Bergmann
2007-04-26 23:15 ` Paul Fulghum
2007-05-02 17:52 ` [PATCH] tty add compat_ioctl method Paul Fulghum
2007-05-02 21:55 ` Arnd Bergmann
2007-05-02 23:03 ` Paul Fulghum
2007-05-02 22:28 ` Arnd Bergmann
2007-04-27 0:38 ` Andi Kleen [this message]
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