linux-kernel - Re: Too verbose compat

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Message-ID: <20070706190456.GC8174@one.firstfloor.org>
Date:	Fri, 6 Jul 2007 21:04:56 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	Andi Kleen <andi@...stfloor.org>, "H. Peter Anvin" <hpa@...or.com>,
	Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>,
	Linux Kernel Development <linux-kernel@...r.kernel.org>,
	Linux/PPC Development <linuxppc-dev@...abs.org>,
	Hiroaki Fuse <Hiroaki_Fuse@...scei.sony.co.jp>
Subject: Re: Too verbose compat_ioctl messages?

On Fri, Jul 06, 2007 at 11:33:43AM -0700, Jeremy Fitzhardinge wrote:
> Andi Kleen wrote:
> >"H. Peter Anvin" <hpa@...or.com> writes:
> >  
> >>For one thing, it looks like we're returning the wrong thing (EINVAL
> >>rather than ENOTTY) across the board.  This was unfortunately a common
> >>misunderstanding with non-tty-related ioctls in the early days of Linux.
> >>    
> >
> >ENOTTY is so excessively misnamed that it is actually surprising
> >anybody ever got that "right" (for very small values of right i guess)
> >  
> 
> But it *isn't* a typewriter. 

Most ioctls are not related to ttys in any way.

-Andi
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