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Date:	Tue, 27 Oct 2009 13:44:45 -0700
From:	Greg KH <>
To:	Pavel Machek <>
Cc:	Arve Hj?nnev?g <>,
	kernel list <>,
	linux-arm-kernel <>,
	Brian Swetland <>
Subject: Re: staging/dream: add gpio and pmem support

On Tue, Oct 27, 2009 at 08:33:30PM +0100, Pavel Machek wrote:
> Hi!
> > > Could we perhaps use -I to let it build before I find time to do
> > > search&replace of 100 #includes? Yes, I'm working on that, but no, it
> > > obviously does not progress as fast as I expected...
> > > 
> > > Add missing files/includes neccessary for Dream compilation.
> > >     
> > > Signed-off-by: Pavel Machek <>
> > 
> > Ick, no.  I'm not going to take the wakelock and other header files that
> > are "generic" to android into the dream subdir.  That's not ok.
> What is so wrong with wakelocks? They are just nops in this case.

Are they really?  Then why is the whole large file needed?

> > If this code requires this mess to build, I think we should just delete
> > the whole thing and start over with patches that add code that can
> > actually build properly.
> Well, crap is easier to clean up when it compiles (and is in tree --
> that's point of staging -- right?), and it is not particulary bad crap
> in this case.
> > Any objection to that?
> Yes; dropping the code now will not help anything. Merging it to this
> point was not easy, and forcing me to redo it will just delay me from
> cleaning it up.
> Merging crappy Windows driver to staging is easy:
> 1) you verify it is GPL
> 2) you submit it

Wait, it has to BUILD!  This code has never been able to be built.  Only
after I disabled it from the CONFIG_ANDROID have I noticed this, which
is my fault.  But it needs to get fixed, and taking a bunch of code in
addition to the mess we have now, seems like the wrong way to do it.

> [and then, clean it in tree].
> I tried same process with dream support:
> 1) driver was GPLed
> 2) I tried submitting

It did not BUILD!!!

> 3) I was told to split it according to authors. In Windows driver
> world, that would be show-stopper. Thanks to Google support, I figured
> authors.
> 4) I'm told that -I is not acceptable, not even inside
> staging. Windows drivers regulary have way worse build system
> abuses. (Of course, those need to be fixed before merging into kernel
> proper; fortunately they are easy to do incrementally).

I have never taken a driver in staging that was not self-contained or
needed any -I funkyness.

> Now, I see that wakelocks are show-stopper for merging into kernel
> proper, but what is the problem for staging? We merged drivers with
> OS_MEMORY_ALLOCATE(); wakelocks are just nops in this case.
> Could we please clean this driver in-tree? (Wakelocks are already nops
> due to #ifdef magic, cleaning them incrementally is easy.)

With this patch, will it build properly?

> (Plus, of course I'd like some help, but google people seem very
> silent :-( ).

Google has abandonded upstream Android development, which is a very sad
state of being :(


greg k-h
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