linux-kernel - Re: linux-next: Tree for August 14 (sysfs/acpi errors)

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Date:	Sat, 16 Aug 2008 04:57:57 +0200
From:	Andi Kleen <ak@...ux.intel.com>
To:	Kay Sievers <kay.sievers@...y.org>
CC:	Randy Dunlap <randy.dunlap@...cle.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	gregkh <greg@...ah.com>, linux-next@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>, linux-acpi@...r.kernel.org,
	rusty@...tcorp.com.au
Subject: Re: linux-next: Tree for August 14 (sysfs/acpi errors)


>> Extract is:
>>
>> XXX adding modparam:'acpi.power_nocheck' 34 (ffffffff806a4cf0)
> ...
>> XXX adding modparam:'acpi.acpica_version' 45 (ffffffff806a4ea8)
> 
> Two different "modules" use the same prefix, which does not work with
> the current logic, they need to live next to each other in the sequence
> of options.

Sequence of options being defined by link order?

> This adds a new option:
>   http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git;a=commitdiff;h=1382827e93799ec07790849e361267993cfe549e
> which specifies MODULE_PARAM_PREFIX="acpi." in:
>   drivers/acpi/power.c
> In the same way as:
>   drivers/acpi/system.c
> 
> Seems, two different modules should not declare parameters in different
> locations, and use the same MODULE_PARAM_PREFIX.

That seems bogus to me. Assuming we have some code in a module and then split
it out into two different modules. Or move an option from one file to another.
Would we need to change the option name then?

I think the generic params code should be fixed to handle this.

-Andi
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