linux-kernel - Re: [PATCH] introduce __init

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Message-ID: <s5hodibukle.wl%tiwai@suse.de>
Date:	Tue, 17 Jul 2007 17:16:13 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	Domen Puncer <domen.puncer@...argo.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] introduce __init_exit function annotation

At Tue, 17 Jul 2007 17:14:32 +0200,
Sam Ravnborg wrote:
> 
> On Tue, Jul 17, 2007 at 04:52:12PM +0200, Takashi Iwai wrote:
> > At Tue, 17 Jul 2007 15:02:30 +0200,
> > Sam Ravnborg wrote:
> > > 
> > > On Tue, Jul 17, 2007 at 10:02:48AM +0200, Domen Puncer wrote:
> > > > Introduce __init_exit, which is useful ie. for drivers that call
> > > > cleanup functions when they fail in __init functions.
> > > 
> > > This is wrong.
> > > On arm (just one example of several) the __exit section are discarded
> > > at buildtime so any reference from __init to __exit will cause the
> > > linker to error out.
> > 
> > Hmm, from what I see, it adds __init to the function.  There is no
> > reference to __exit.
> 
> The cleanup functions are marked __exit in the referenced case.

My understanding is that it's the very purpose of this patch --
change the mark from __exit to __init_exit for such clean-up
functions.


Takashi
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