linux-kernel - Re: [WARNING] mxc_w1_probe should not be _

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Message-ID: <20100212110100.GA18221@pengutronix.de>
Date:	Fri, 12 Feb 2010 12:01:00 +0100
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Alberto Panizzo <maramaopercheseimorto@...il.com>
Cc:	Sascha Hauer <s.hauer@...gutronix.de>,
	Evgeniy Polyakov <johnpol@....mipt.ru>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [WARNING] mxc_w1_probe should not be __init modified

Hello,

On Fri, Feb 12, 2010 at 11:42:28AM +0100, Alberto Panizzo wrote:
> Today linux-next build, report this:
> 
> WARNING: drivers/w1/masters/built-in.o(.data+0x0): Section mismatch in reference from the variable mxc_w1_driver to the function .init.text:mxc_w1_probe()
> The variable mxc_w1_driver references
> the function __init mxc_w1_probe()
> If the reference is valid then annotate the
> variable with __init* or __refdata (see linux/init.h) or name the variable:
> *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, 
> 
> 
> I don't know if should be modified with __devinit instead or nothing at all.
Yes it should use __devinit.  If you need a reason, try

	cd /sys/bus/platform/drivers/mxc_w1
	echo -n mxc_w1.0 > unbind
	echo -n mxc_w1.0 > bind

While at it, mxc_w1_remove can be moved to devexit.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
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