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Message-Id: <1183468191.29081.17.camel@shinybook.infradead.org>
Date:	Tue, 03 Jul 2007 09:09:50 -0400
From:	David Woodhouse <dwmw2@...radead.org>
To:	Rodolfo Giometti <giometti@...eenne.com>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] LinuxPPS (with new syscalls API) - new version

On Tue, 2007-07-03 at 11:48 +0200, Rodolfo Giometti wrote:
> On Sun, Jul 01, 2007 at 01:03:11PM +0100, David Woodhouse wrote:
> > 
> > Seems reasonable enough in principle -- but whatever you do, don't use
> > "long" for it. That would definitely need different behaviour for 32-bit
> > vs. 64-bit. Use explicitly sized types such as uint32_t or uint64_t.
> 
> Here the patch to convert LinuxPPS data structs into fixed ones.
> 
> Please, take a look at it and report possible modifications.

Looks relatively sane at first glance; busy this week so haven't looked
very hard yet. Two thing though... you're mixing proper C types
(uint32_t) and the Linux-specific legacy crap types (__u32). Pick one. I
won't recommend _which_ one, because if I do I'll make Andrew unhappy.
But pick one; don't use both at the same time.

Also read Documentation/volatile-considered-harmful.txt and ponder
deeply your use of 'volatile' on certain members of struct pps_s.

-- 
dwmw2

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