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Date: Sat, 19 Jan 2008 14:59:49 +1100 From: Rusty Russell <rusty@...tcorp.com.au> To: Tejun Heo <htejun@...il.com> Cc: linux-kernel@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>, Jeff Garzik <jgarzik@...ox.com>, Ash Willis <ashwillis@...grammer.net>, linux-pcmcia@...ts.infradead.org, virtualization@...ts.linux-foundation.org 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. Thanks! Rusty. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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