linux-kernel - Re: Typedef removal tool

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Message-ID: <43e72e890908120045s6e94bd5es480bb4ef1a66597c@mail.gmail.com>
Date:	Wed, 12 Aug 2009 00:45:35 -0700
From:	"Luis R. Rodriguez" <mcgrof@...il.com>
To:	Julia Lawall <julia@...u.dk>
Cc:	devel@...uxdriverproject.org, linux-kernel@...r.kernel.org,
	Nicolas Palix <npalix@...u.dk>
Subject: Re: Typedef removal tool

On Tue, Aug 11, 2009 at 10:01 PM, Julia Lawall<julia@...u.dk> wrote:
> On Tue, 11 Aug 2009, Luis R. Rodriguez wrote:
>
>> Anyone know if there is a typedef removal tool? When porting drivers
>> this needs to be done quite often.
>>
>> FWIW I've started porting some driver and have come across some tools,
>> or written my own scripts, which have helped. Using spatch to port a
>> driver was such a tool I explored. I think I'll try to put together
>> some info on the driver project wiki for this. typdef removal tool
>> would still be neat.
>
> Nicolas Palix (in CC) did a bit of work on this recently using Coccinelle,
> but the problem is that simply removing the typedef is not enough, one has
> to come up with a name that is within the spirit of the names used in
> Linux, or perhaps recognize that the structure in question already exists
> in a more general form in the kernel an thus the declaration should be
> removed completely.
>
> Someone else made a dedicated tool using a dictionary of the old and new
> names that at least partially addresses these problems.  Nicolas knows who
> that person is.

Sounds like a very proper way to do this.

I wrote something not-so-proper and simple based on Joe's work that
just replaces a specified typedef name with one the user specifies.
Should do it for simple porting where you do not have to prove
correctness and avoid namespace collisions.

  Luis
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