From: Russell King <rmk@arm.linux.org.uk>
To: Andrea Arcangeli <andrea@suse.de>
Cc: Peter Chubb <peter@chubb.wattle.id.au>,
Bernardo Innocenti <bernie@develer.com>,
Andrew Morton <akpm@digeo.com>,
linux-kernel@vger.kernel.org,
Linus Torvalds <torvalds@transmeta.com>
Subject: Re: [PATCH] Kill div64.h dupes, parenthesize do_div() macro params
Date: Wed, 2 Jul 2003 08:56:47 +0100 [thread overview]
Message-ID: <20030702085647.B30638@flint.arm.linux.org.uk> (raw)
In-Reply-To: <20030702055759.GJ3040@dualathlon.random>; from andrea@suse.de on Wed, Jul 02, 2003 at 07:57:59AM +0200
On Wed, Jul 02, 2003 at 07:57:59AM +0200, Andrea Arcangeli wrote:
> this doesn't even sounds safe. If it's just for printing not a big deal,
It used to be only used in vsprintf. However, now it features in the
kernels time code, and that rather screws things up if its implemented
as a 32 by 32 operation.
Therefore, if architectures want a stable time subsystem, all
architectures must provide a do_div() which is a 64 by 32 operation.
--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html
next prev parent reply other threads:[~2003-07-02 7:42 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-02 0:32 Bernardo Innocenti
[not found] ` <20030701173612.280d1296.akpm@digeo.com>
2003-07-02 2:24 ` Bernardo Innocenti
2003-07-02 2:32 ` Andrew Morton
2003-07-02 3:15 ` Bernardo Innocenti
2003-07-02 5:12 ` Linus Torvalds
2003-07-02 7:53 ` Russell King
2003-07-02 8:14 ` Ian Molton
2003-07-02 5:09 ` Linus Torvalds
2003-07-02 7:02 ` Bernardo Innocenti
2003-07-02 7:54 ` Matti Aarnio
2003-07-02 3:36 ` Peter Chubb
2003-07-02 4:37 ` Bernardo Innocenti
2003-07-02 5:57 ` Andrea Arcangeli
2003-07-02 6:52 ` Bernardo Innocenti
2003-07-02 7:19 ` Andrea Arcangeli
2003-07-02 7:28 ` Bernardo Innocenti
2003-07-02 8:38 ` Andrea Arcangeli
2003-07-02 16:16 ` Linus Torvalds
2003-07-03 10:43 ` [PATCH] Fix do_div() for all architectures Bernardo Innocenti
2003-07-02 7:56 ` Russell King [this message]
2003-07-02 5:06 ` [PATCH] Kill div64.h dupes, parenthesize do_div() macro params Linus Torvalds
2003-07-02 14:23 ` Geert Uytterhoeven
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