linux-kernel - Re: [PATCH] flex_array: add helpers to get and put to make pointers easy to use

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Date:	Tue, 3 Aug 2010 13:55:57 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Eric Paris <eparis@...hat.com>
cc:	linux-kernel@...r.kernel.org, selinux@...ho.nsa.gov,
	dave@...ux.vnet.ibm.com, Andrew Morton <akpm@...ux-foundation.org>,
	jmorris@...ei.org, sds@...ho.nsa.gov
Subject: Re: [PATCH] flex_array: add helpers to get and put to make pointers
 easy to use

On Tue, 3 Aug 2010, Eric Paris wrote:

> Getting and putting arrays of pointers with flex arrays is a PITA.  You
> have to remember to pass &ptr to the _put and you have to do weird and
> wacky casting to get the ptr back from the _get.  Add two functions
> flex_array_get_ptr() and flex_array_put_ptr() to handle all of the magic.
> 

There's no code currently in the tree that uses the flex array interface, 
so is this something that you've encountered in practice or only by 
inspection?  If it's the former, is that code on its way for 2.6.36?

I'm hoping distros aren't creating internal dependencies on this interface 
that could practically be removed from upstream at any time given its lack 
of popularity.
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