linux-kernel - Re: [PATCH 5/5] typesafe: TIMER_INITIALIZER and setup

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Message-Id: <200802051441.53844.rusty@rustcorp.com.au>
Date:	Tue, 5 Feb 2008 14:41:53 +1100
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Al Viro <viro@...iv.linux.org.uk>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Jeff Garzik <jeff@...zik.org>
Subject: Re: [PATCH 5/5] typesafe: TIMER_INITIALIZER and setup_timer

On Tuesday 05 February 2008 01:57:37 Al Viro wrote:
> On Mon, Feb 04, 2008 at 11:19:44PM +1100, Rusty Russell wrote:
> > This patch lets timer callback functions have their natural type
> > (ie. exactly match the data pointer type); it allows the old "unsigned
> > long data" type as well.
> >
> > Downside: if you use the old "unsigned long" callback type, you won't
> > get a warning if your data is not an unsigned long, due to the cast.
>
> No.  There's much saner way to do that and it does not involve any gccisms
> at all.  I'd posted such patches quite a while ago; normal C constructs
> are quite sufficient, TYVM.

If you're referring to your 1 Dec 2006 posting, it was enlightening, but I was 
unable to find any patches.

I'd be interested in seeing what you ended up with; I agree it'd be nice to 
kill that unsigned long.

Thanks,
Rusty.
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