linux-kernel - Re: [patch, -git] drivers/media build fix for modular builds

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Message-ID: <20080430095557.GA31986@uranus.ravnborg.org>
Date:	Wed, 30 Apr 2008 11:55:57 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	David Miller <davem@...emloft.net>, mchehab@...radead.org,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	linux-dvb-maintainer@...uxtv.org, video4linux-list@...hat.com,
	linux-kernel@...r.kernel.org, sfr@...b.auug.org.au
Subject: Re: [patch, -git] drivers/media build fix for modular builds

On Wed, Apr 30, 2008 at 11:37:28AM +0200, Ingo Molnar wrote:
> 
> * Sam Ravnborg <sam@...nborg.org> wrote:
> 
> > drivers/media is special because it does not contain any files. Kbuild 
> > will generate a built-in.o file only if there is a chance for a .o 
> > file in the directory.
> > 
> > When all media is modules kbuild does not know enough to say that a 
> > built-in.o is needed in drivers/media/ and the workaround to do a 
> > obj-y := common/ is the best way to do so.
> 
> ok, good. Should be an exceedingly rare situation, we dont have _that_ 
> many driver sub-trees.
> 
> Can we take this as a:
> 
>   Acked-by: Sam Ravnborg <sam@...nborg.org>
Yes.

	Sam
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