linux-kernel - Re: [PATCH] Switch atmel_serial to dev_pm

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Date:	Mon, 3 Aug 2009 17:50:49 +0200
From:	Albin Tonnerre <albin.tonnerre@...e-electrons.com>
To:	Haavard Skinnemoen <haavard.skinnemoen@...el.com>
Cc:	nicolas.ferre@...el.com, linux@...im.org.za,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Switch atmel_serial to dev_pm_ops

On Mon, Aug 03, 2009 at 05:09:47PM +0200, Haavard Skinnemoen wrote :
> Albin Tonnerre wrote:
> > +static struct dev_pm_ops atmel_serial_pm_ops = {
> > +	.suspend = atmel_serial_suspend,
> > +	.resume = atmel_serial_resume,
> > +};
> >  #else
> > -#define atmel_serial_suspend NULL
> > -#define atmel_serial_resume NULL
> > +static struct dev_pm_ops atmel_serial_pm_ops;

> Why not

> #define atmel_serial_pm_ops	NULL

Because the .pm field is set to the address of atmel_serial_pm_ops, and iirc
taking the address of NULL is not allowed.

> >  #endif

> >  static int __devinit atmel_serial_probe(struct platform_device *pdev)
> > @@ -1603,11 +1607,10 @@ static int __devexit atmel_serial_remove(struct platform_device *pdev)
> >  static struct platform_driver atmel_serial_driver = {
> >  	.probe		= atmel_serial_probe,
> >  	.remove		= __devexit_p(atmel_serial_remove),
> > -	.suspend	= atmel_serial_suspend,
> > -	.resume		= atmel_serial_resume,
> >  	.driver		= {
> >  		.name	= "atmel_usart",
> >  		.owner	= THIS_MODULE,
> > +		.pm = &atmel_serial_pm_ops,

> Please use a TAB instead of space to make everything nice and
> consistent.

That's weird, because my editor does show a TAB there, and applying the patch
with git am results in a TAB.

Regards,
-- 
Albin Tonnerre, Free Electrons
Kernel, drivers and embedded Linux development,
consulting, training and support.
http://free-electrons.com
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