linux-kernel - Re: [PATCH] PM: Add pm_ops

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Message-ID: <20130503092311.GA13832@amd.pavel.ucw.cz>
Date:	Fri, 3 May 2013 11:23:11 +0200
From:	Pavel Machek <pavel@....cz>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Jingoo Han <jg1.han@...sung.com>, linux-pm@...r.kernel.org,
	'Len Brown' <len.brown@...el.com>,
	'Andrew Morton' <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Wolfram Sang <wsa@...-dreams.de>,
	linux-i2c@...r.kernel.org
Subject: Re: [PATCH] PM: Add pm_ops_ptr() macro

Hi!

> > Add pm_ops_ptr() macro that allows the .pm entry in the driver structures
> > to be assigned without having an #define xxx NULL for the case that PM is
> > not enabled.
> > 
> > Signed-off-by: Jingoo Han <jg1.han@...sung.com>
> 
> I've queued this up as v3.11 material.

> > --- a/drivers/i2c/busses/i2c-s3c2410.c
> > +++ b/drivers/i2c/busses/i2c-s3c2410.c
> > @@ -1218,7 +1218,6 @@ static int s3c24xx_i2c_resume(struct device *dev)
> >  }
> >  #endif
> >  
> > -#ifdef CONFIG_PM
> >  static const struct dev_pm_ops s3c24xx_i2c_dev_pm_ops = {
> >  #ifdef CONFIG_PM_SLEEP
> >  	.suspend_noirq = s3c24xx_i2c_suspend_noirq,
> > @@ -1226,11 +1225,6 @@ static const struct dev_pm_ops s3c24xx_i2c_dev_pm_ops = {
> >  #endif
> >  };
> >  
> > -#define S3C24XX_DEV_PM_OPS (&s3c24xx_i2c_dev_pm_ops)
> > -#else
> > -#define S3C24XX_DEV_PM_OPS NULL
> > -#endif
> > -
> >  /* device driver for platform bus bits */

Will not this enlarge .data by sizeof(struct dev_pm_ops)?

									Pavel
-- 
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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