linux-kernel - Re: [PATCH v8 1/5] configfs: Allow dynamic group creation

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Date:	Thu, 22 Oct 2015 10:40:34 +0200
From:	Christoph Hellwig <hch@....de>
To:	Daniel Baluta <daniel.baluta@...el.com>
Cc:	jic23@...nel.org, jlbec@...lplan.org, linux-iio@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, lars@...afoo.de, knaack.h@....de,
	linux-kernel@...r.kernel.org, octavian.purdila@...el.com,
	pebolle@...cali.nl, patrick.porlan@...el.com,
	adriana.reus@...el.com, constantin.musca@...el.com,
	marten@...uitiveaerial.com, cristina.opriceana@...il.com,
	pmeerw@...erw.net, hch@....de, viro@...iv.linux.org.uk,
	akpm@...ux-foundation.org
Subject: Re: [PATCH v8 1/5] configfs: Allow dynamic group creation

On Tue, Oct 20, 2015 at 01:53:42PM +0300, Daniel Baluta wrote:
> We don't want to hardcode default groups at subsystem
> creation time. We export:
> 	* configfs_register_group
> 	* configfs_unregister_group
> to allow drivers to programatically create/destroy groups
> later, after module init time.
> 
> This is needed for IIO configfs support.

This looks like a good start, and maybe we should merge it as is given
that merge window is about to end.  But I have two requests, one trivial
and one not so:

 a) please provide kerneldoc comments for the new functions
 b) just pass the name and item type and dynamically allocate the
    actua group. With that we can avoid a lot of boilerplate code and
    could also replace the horrible static sized defaults_groups array
    in current users with your new function.

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