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Date:	Sat, 19 Jan 2008 14:59:49 +1100
From:	Rusty Russell <>
To:	Tejun Heo <>
	Andrew Morton <>,
	Jeff Garzik <>,
	Ash Willis <>,,
Subject: Re: [PATCH 3/3] Makes lguest's irq handler typesafe

On Saturday 19 January 2008 12:44:52 Tejun Heo wrote:
> Tejun Heo wrote:
> > so I think the question is "do we want to change all callbacks to
> > take native pointer type instead of void pointer?".
> Lemme clarity myself a bit.  I'm not saying that we should convert all
> at once or literally every callback should be converted.  What I'm
> saying is whether we're headed that way in general and converting big
> ones - timer for example - and getting the conversion agreed upon should
> be enough to set the norm.

Hi Tejun

    There are three possibilities: (1) force everyone to use void *, (2) force 
everyone to be type-correct, (3) allow both with some tricks.  Currently 
we're on (1).  For kthread, with only dozens of users, I chose (2) (very 
simple, easy to understand).  I think for widespread things like timer and 
interrupt handlers, I think (3) is the right way to go.

    I wanted to get this patch out there and see what the reaction was.  I can 
do timers next, if that's going to add fuel to the discussion.

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