netdev - Re: [PATCH v2] netfilter: Xtables: idletimer target implementation

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Date:	Wed, 2 Jun 2010 21:29:10 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...ozas.de>
To:	Luciano Coelho <luciano.coelho@...ia.com>
cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"netfilter-devel@...r.kernel.org" <netfilter-devel@...r.kernel.org>,
	"kaber@...sh.net" <kaber@...sh.net>, Timo Teras <timo.teras@....fi>
Subject: Re: [PATCH v2] netfilter: Xtables: idletimer target implementation


On Wednesday 2010-06-02 21:05, Luciano Coelho wrote:
>> > >+	idletimer_tg_kobj = kobject_create_and_add("idletimer",
>> > >+						   &THIS_MODULE->mkobj.kobj);
>> > 
>> > Isn't this going to oops when you compile this module as =y?
>> 
>> Damn, that's true. :(
>> 
>> I'll investigate how to fix this.
>
>Would it be too hacky to force it to be a module (ie. add "depends on m"
>in Kconfig)?
>
>Besides /sys/module/xt_IDLETIMER and /sys/class/net, which we have
>already discarded, I can't find any other place that would make sense to
>add the idletimer in the kernel object hierarchy...

While THIS_MODULE is NULL in =y mode, /sys/module/<xyz> can still exist 
(cf. /sys/module/printk). I just don't know how to get at the kobj for 
it, but the existence of it must mean it's there somewhere. Might ask 
sysfs authors.
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