linux-kernel - Re: module: sysfs - add 'uevent' file to allow coldplug

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Message-ID: <BANLkTi=v-axftYKJCJ33+9UnfF9NJDAykQ@mail.gmail.com>
Date:	Thu, 23 Jun 2011 13:24:06 +0200
From:	Kay Sievers <kay.sievers@...y.org>
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Greg KH <greg@...ah.com>
Subject: Re: module: sysfs - add 'uevent' file to allow coldplug

On Thu, Jun 23, 2011 at 02:27, Rusty Russell <rusty@...tcorp.com.au> wrote:
> On Wed, 22 Jun 2011 12:17:49 +0200, Kay Sievers <kay.sievers@...y.org> wrote:
>> On Wed, Jun 22, 2011 at 04:00, Rusty Russell <rusty@...tcorp.com.au> wrote:

>> > Now we've got that sorted, is there a reason why you changed all the
>> > signatures rather than just using mod->mkobj in store_uevent()?
>>
>> Because we should be able to use the same 'struct module_attribute'
>> for built-in modules and for loaded modules at the same time. The
>> current 'struct module_attribute' has 'struct module' references, but
>> 'struct module' will never exist for built-in modules.
>>
>> 'Struct module_kobject' has nice back-pointer to 'struct module', so
>> this was the simplest to do, and looks still fine, I thought.
>
> Yes, it's weird.  The only reason it currently works is because we don't
> use the mod parameter in param_attr_show and param_attr_store; it's NULL
> for built-in modules.
>
> I'd prefer that patch first, I think: it's a sensible cleanup.

You want the patch split up in two? You want to remove the mod
parameter somehow?

Thanks,
Kay
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