linux-kernel - Re: [PATCH 3/3] Makes lguest's irq handler typesafe

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

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/