From: David Woodhouse <dwmw2@infradead.org>
To: Abramo Bagnara <abramo@alsa-project.org>
Cc: "David S. Miller" <davem@redhat.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Linux Kernel Development <linux-kernel@vger.kernel.org>
Subject: Re: unsigned long ioremap()?
Date: Thu, 03 May 2001 10:45:28 +0100 [thread overview]
Message-ID: <11718.988883128@redhat.com> (raw)
In-Reply-To: <3AF10E80.63727970@alsa-project.org>
In-Reply-To: <3AF10E80.63727970@alsa-project.org> <Pine.LNX.4.05.10105030852330.9438-100000@callisto.of.borg> <15089.979.650927.634060@pizda.ninka.net>
abramo@alsa-project.org said:
> The problem I see is that with the former solution nothing prevents
> from to do:
> regs->reg2 = 13;
> That's indeed the reason to change ioremap prototype for 2.5.
An alternative is to add an fixed offset to the cookie before returning it,
and subtract it again in {read,write}[bwl].
--
dwmw2
next prev parent reply other threads:[~2001-05-03 9:49 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-03 6:55 unsigned long ioremap()? Geert Uytterhoeven
2001-05-03 7:08 ` David S. Miller
2001-05-03 7:18 ` Jeff Garzik
2001-05-03 7:29 ` C.Praveen
2001-05-03 7:46 ` Jonathan Lundell
2001-05-03 7:57 ` Geert Uytterhoeven
2001-05-03 7:53 ` Abramo Bagnara
2001-05-03 8:08 ` Jeff Garzik
2001-05-03 8:26 ` Geert Uytterhoeven
2001-05-03 8:39 ` Abramo Bagnara
2001-05-03 8:44 ` Jeff Garzik
2001-05-03 8:53 ` Abramo Bagnara
2001-05-03 9:45 ` David Woodhouse [this message]
2001-05-03 9:57 ` Abramo Bagnara
2001-05-04 0:22 ` David S. Miller
2001-05-04 7:15 ` Abramo Bagnara
2001-05-04 7:30 ` David S. Miller
2001-05-04 11:07 ` Abramo Bagnara
2001-05-04 13:53 ` Jonathan Lundell
2001-05-13 14:00 ` Jes Sorensen
2001-05-13 14:38 ` Abramo Bagnara
2001-05-03 10:02 ` David Woodhouse
2001-05-03 7:33 ` Jonathan Lundell
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