linux-kernel - Re: [RFC/PATCH 00/13] wl12xx re-factor

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Message-ID: <1305809345.12586.1579.camel@cumari>
Date:	Thu, 19 May 2011 15:49:05 +0300
From:	Luciano Coelho <coelho@...com>
To:	Felipe Balbi <balbi@...com>
Cc:	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC/PATCH 00/13] wl12xx re-factor

On Sat, 2011-05-14 at 00:26 +0300, Felipe Balbi wrote:
> Hi Luca,

Hi Felipe,

> this is the re-factor I was talking to you
> about. Please have a look and give your
> comments.
> 
> It probably won't work as is, I compile
> tested only, but it shows the idea.

This looks very good! I think we should do something like this to avoid
the code that is duplicated in the bus modules.

But, as I already mentioned briefly on IRC, there is a problem with the
way you changed the platform data structure, because it will break
compat-wireless.  The actual memory and data that is used by the
platform data is in the board components and not part of the wireless
subsystem.  With compat-wireless, we need to make sure that new stuff
works with older kernels.  In your patches you modify the platform data
structure, so when we run an old kernel with new compat-wireless, things
will break.

We already found a similar bug due to a previous change in the platform
data structure, so I don't want this to happen again.  So for now, I'll
keep these patches aside, but as soon as we find a good solution, I'll
definitely use your ideas here (or ask you to rebase :P).

I'll probably apply some of the patches that are not related to the
platform data change.  I'll respond to those specific patches
separately.

-- 
Cheers,
Luca.

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