linux-kernel - Re: [PATCH][RFC] Delete export of tty.h to userspace.

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Message-ID: <Pine.LNX.4.64.0707190715320.25024@localhost.localdomain>
Date:	Thu, 19 Jul 2007 07:17:07 -0400 (EDT)
From:	"Robert P. J. Day" <rpjday@...dspring.com>
To:	Karel Zak <kzak@...hat.com>
cc:	Jiri Slaby <jirislaby@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH][RFC] Delete export of tty.h to userspace.

On Thu, 19 Jul 2007, Karel Zak wrote:

> On Wed, Jul 18, 2007 at 04:33:12PM -0400, Robert P. J. Day wrote:
> > On Wed, 18 Jul 2007, Jiri Slaby wrote:
> >
> > > Robert P. J. Day napsal(a):
> > > >   given that the entire contents of include/linux/tty.h is contained
> > > > within an "#ifdef __KERNEL__", it seems pointless to export it to
> > > > userspace, unless there's some kind of need for that header file to
> > > > exist in userspace, even if it's empty.
> > > >
> > > >   a quick grep shows that nothing under /usr/include references any
> > > > file of the name "tty.h" in any way.  thoughts?
> > >
> > > If we decide to remove the file, I would rather go through
> > > deprecation of the file with filing an entry in
> > > feature-remove-schedule. There still seems to be some users of the
> > > file.
> >
> > i'm curious -- how did you determine that?
>
>  $ grep "tty.h" util-linux/sys-utils/cytune.c
>  #include <linux/tty.h>
>
>  ... I'll fix it in util-linux-ng.

so you're saying you'll drop that include from util-linux, is that it?
but it's still a good plan to generate a warning whenever userspace
includes that file, so i'll submit a quick patch to generate that,
based on jiri's suggestion.

rday
-- 
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

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