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From: Masatake YAMATO <jet@gyve.org>
To: hpa@zytor.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: [patch] sharing maximum errno symbol used in __syscall_return (i386)
Date: Wed, 21 Jun 2006 15:02:12 +0900 (JST)	[thread overview]
Message-ID: <20060621.150212.138089156.jet@gyve.org> (raw)
In-Reply-To: <4498C95A.3090909@zytor.com>

> > Hi,
> > 
> > __syscall_return in unistd.h is maintained?
> > 
> > In the macro the value returned from system call is
> > compared with the maximum error number defined in a header file 
> > to know the call is successful or not. However, the maximum error number 
> > is hard-coded and is not updated.
> > 
> 
> And it's wrong, anyway.  It has long been agreed that the maximum errno 
> value, for any architecture, is 4095.

So we should do just:


   #define GENERIC_ERRNO_MAX 4095

Here my patch is proved to be useful for maintaining __syscall_return:-P
 
Masatake YAMATO

  reply	other threads:[~2006-06-21  6:02 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-06-20  9:40 Masatake YAMATO
2006-06-21  0:04 ` Randy.Dunlap
2006-06-21  4:21 ` H. Peter Anvin
2006-06-21  6:02   ` Masatake YAMATO [this message]
2006-06-21  6:05     ` H. Peter Anvin

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