linux-kernel - Re: Tips for module

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Date:	Thu, 15 Oct 2009 12:50:22 -0400
From:	Gregory Haskins <gregory.haskins@...il.com>
To:	Daniel Walker <dwalker@...o99.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Tips for module_init() dependencies

Daniel Walker wrote:
> On Thu, 2009-10-15 at 12:17 -0400, Gregory Haskins wrote:
>> Daniel Walker wrote:
>>> On Thu, 2009-10-15 at 11:58 -0400, Gregory Haskins wrote:
>>>
>>>> Hi Daniel,
>>>>
>>>> Possibly.
>>>>
>>>> A) Any suggestions on how? Can I express this in Kconfig or something
>>>> (i.e. "depends on FOO").  I currently have "select FOO" in the BAR
>>>> object, but this doesn't seem to be sufficient to describe the relationship.
>>>>
>>>> B) Do I have to make the entire chain follow suit? (I have C deps on B,
>>>> B deps on A kind of scenarios)
>>> Yeah, what Randy said .. As far as I know it should be just a build
>>> order issue .. In the make file when you specify your new module along
>>> with all the others where you put it is actually important .. In
>>> fs/Makefile you have this line,
>>>
>>> obj-$(CONFIG_CONFIGFS_FS)       += configfs/
>>>
>>> and I would guess you want yours after that line if your adding to that
>>> makefile.
>> Right, that makes sense.  However, the problem is that these
>> dependencies might not have anything to do with ./fs per se and
>> therefore would not necessarily be in the ./fs Makefile.  But I think
>> the Makefile dependency idea in general is the right approach, so I will
>> experiment with this suggestion.
> 
> I think the order for the core stuff is,
> 
> kernel/ mm/ fs/ ipc/ security/ crypto/ block/
> 
> and that all comes before drivers/ , so your adding to kernel/ or mm/ ?
> 
> Daniel
> 

Its currently in kernel, though I am not married to this location per se.

-Greg



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