linux-kernel - Re: [PATCH v2 1/8] thermal: Provide stub for thermal_of_cooling_device

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Message-ID: <20150102190339.GA22356@developer>
Date:	Fri, 2 Jan 2015 15:03:41 -0400
From:	Eduardo Valentin <edubezval@...il.com>
To:	Lukasz Majewski <l.majewski@...sung.com>
Cc:	Kamil Debski <k.debski@...sung.com>,
	Jean Delvare <jdelvare@...e.de>,
	Guenter Roeck <linux@...ck-us.net>, lm-sensors@...sensors.org,
	Linux PM list <linux-pm@...r.kernel.org>,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>, devicetree@...r.kernel.org,
	Lukasz Majewski <l.majewski@...ess.pl>,
	Kukjin Kim <kgene.kim@...sung.com>,
	linux-kernel@...r.kernel.org,
	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Abhilash Kesavan <kesavan.abhilash@...il.com>,
	Abhilash Kesavan <a.kesavan@...sung.com>
Subject: Re: [PATCH v2 1/8] thermal: Provide stub for
 thermal_of_cooling_device_register() function

On Fri, Jan 02, 2015 at 02:54:28PM -0400, Eduardo Valentin wrote:
> On Mon, Dec 22, 2014 at 05:27:41PM +0100, Lukasz Majewski wrote:
> > Odroid U3 fan can work without being registered as OF cooling device
> > (with CONFIG_THERMAL_OF disabled).
> > In this situation it can be controlled via PWM entry at
> > /sys/class/hwmon/hwmon0/pwm1.
> > 
> > Therefore, the thermal_of_cooling_device_register() function needs a stub
> > to allow clean compilation.
> > 
> > Signed-off-by: Lukasz Majewski <l.majewski@...sung.com>
> 
> Acked-by: Eduardo Valentin <edubezval@...il.com>

Sorry, too fast,

This is actually
Nacked-by: Eduardo Valentin <edubezval@...il.com>

:-)

I get this error:
drivers/thermal/thermal_core.c:1210:1: error: redefinition of
‘thermal_of_cooling_device_register’
 thermal_of_cooling_device_register(struct device_node *np,
  ^
  In file included from drivers/thermal/thermal_core.c:34:0:
  include/linux/thermal.h:321:1: note: previous definition of
  ‘thermal_of_cooling_device_register’ was here
   thermal_of_cooling_device_register(struct device_node *np,
    ^


We provide the function in thermal core even if CONFIG_THERMAL_OF is not
set.
> 
> > ---
> > Changes for v2:
> > - None
> > ---
> >  include/linux/thermal.h | 14 +++++++++++---
> >  1 file changed, 11 insertions(+), 3 deletions(-)
> > 
> > diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> > index 2de3d9e..871123c 100644
> > --- a/include/linux/thermal.h
> > +++ b/include/linux/thermal.h
> > @@ -328,6 +328,10 @@ thermal_zone_of_sensor_register(struct device *dev, int id, void *data,
> >  				const struct thermal_zone_of_device_ops *ops);
> >  void thermal_zone_of_sensor_unregister(struct device *dev,
> >  				       struct thermal_zone_device *tz);
> > +struct thermal_cooling_device *
> > +thermal_of_cooling_device_register(struct device_node *np,
> > +				   char *type, void *devdata,
> > +				   const struct thermal_cooling_device_ops *);
> >  #else
> >  static inline struct thermal_zone_device *
> >  thermal_zone_of_sensor_register(struct device *dev, int id, void *data,
> > @@ -342,6 +346,13 @@ void thermal_zone_of_sensor_unregister(struct device *dev,
> >  {
> >  }
> >  
> > +static inline struct thermal_cooling_device *
> > +thermal_of_cooling_device_register(struct device_node *np,
> > +				   char *type, void *devdata,
> > +				   const struct thermal_cooling_device_ops *ops)
> > +{
> > +	return NULL;
> > +}
> >  #endif
> >  struct thermal_zone_device *thermal_zone_device_register(const char *, int, int,
> >  		void *, struct thermal_zone_device_ops *,
> > @@ -357,9 +368,6 @@ void thermal_zone_device_update(struct thermal_zone_device *);
> >  
> >  struct thermal_cooling_device *thermal_cooling_device_register(char *, void *,
> >  		const struct thermal_cooling_device_ops *);
> > -struct thermal_cooling_device *
> > -thermal_of_cooling_device_register(struct device_node *np, char *, void *,
> > -				   const struct thermal_cooling_device_ops *);
> >  void thermal_cooling_device_unregister(struct thermal_cooling_device *);
> >  struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name);
> >  int thermal_zone_get_temp(struct thermal_zone_device *tz, unsigned long *temp);
> > -- 
> > 2.0.0.rc2
> > 



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