linux-kernel - Re: Problems with Kconfig select across directories

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Date:	Sat, 15 Oct 2011 00:45:47 +0200
From:	Michal Marek <mmarek@...e.cz>
To:	Boaz Harrosh <bharrosh@...asas.com>
Cc:	Paul Bolle <pebolle@...cali.nl>,
	Trond Myklebust <Trond.Myklebust@...app.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	NFS list <linux-nfs@...r.kernel.org>
Subject: Re: Problems with Kconfig select across directories

On 15.10.2011 00:27, Boaz Harrosh wrote:
> On 10/15/2011 12:03 AM, Michal Marek wrote:
>> On 14.10.2011 16:35, Boaz Harrosh wrote:
>>> This does not work. The ORE is not compiled and MODPOST complains.
>>> (Given EXOFS_FS is not selected since then it will work)
>>
>> fs/Makefile only visits fs/exofs if CONFIG_EXOFS_FS is set.
> 
> Bingo. Right on the money. With below patch it works. I'll think
> about it some more and submit.
> 
> Thanks
> ---
> exofs/ore: Select fs/exofs/ folder in Makefile also for ORE only compilation
> 
> If any thing from fs/exofs is set the ORE will be selected. So conditionally
> include fs/exofs in fs/Makefile on ORE set and not EXOFS_FS
...
> --- a/fs/Makefile
> +++ b/fs/Makefile
> @@ -120,6 +120,6 @@ obj-$(CONFIG_DEBUG_FS)		+= debugfs/
>  obj-$(CONFIG_OCFS2_FS)		+= ocfs2/
>  obj-$(CONFIG_BTRFS_FS)		+= btrfs/
>  obj-$(CONFIG_GFS2_FS)           += gfs2/
> -obj-$(CONFIG_EXOFS_FS)          += exofs/
> +obj-$(CONFIG_ORE)		+= exofs/

Note that changing it to obj-y is also valid. And perhaps more obvious.

Michal
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