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Date:	Thu, 25 Jun 2015 00:20:31 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Alexander Sverdlin <alexander.sverdlin@...il.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Bryan Wu <cooloney@...il.com>,
	Richard Purdie <rpurdie@...ys.net>,
	Jacek Anaszewski <j.anaszewski@...sung.com>,
	Robert Moore <robert.moore@...el.com>,
	Lv Zheng <lv.zheng@...el.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Len Brown <lenb@...nel.org>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>, linux-kernel@...r.kernel.org,
	linux-gpio@...r.kernel.org, linux-leds@...r.kernel.org,
	linux-acpi@...r.kernel.org, devicetree@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH] of: acpi: Rename of_node() and acpi_node() to to_of_node() and to_acpi_node()

On Tuesday, June 23, 2015 01:45:00 AM Rafael J. Wysocki wrote:
> On Monday, June 22, 2015 10:38:53 PM Alexander Sverdlin wrote:
> > Commit 8a0662d9 introduced of_node and acpi_node symbols in global namespace
> > but there were already ~63 of_node local variables or function parameters
> > (no single acpi_node though, but anyway).
> > 
> > After debugging undefined but used of_node local varible (which turned out
> > to reference static function of_node() instead) it became clear that the names
> > for the functions are too short and too generic for global scope.
> > 
> > Signed-off-by: Alexander Sverdlin <alexander.sverdlin@...il.com>
> 
> Putting the whole world into the To: field of your messages is not a good idea
> in general.
> 
> I'm fine with this change, personally.
> 
> Does anyone in the CC list have any objections?

No objections apparently.

OK, I've queued this one up for the next PM+ACPI pull request, thanks!

> 
> 
> > ---
> > 
> > Compile-tested on x86_64 with ACPI and ARM with OF.
> > 
> >  drivers/base/property.c  | 26 +++++++++++++-------------
> >  drivers/gpio/gpiolib.c   |  4 ++--
> >  drivers/leds/leds-gpio.c |  2 +-
> >  include/acpi/acpi_bus.h  |  2 +-
> >  include/linux/acpi.h     |  4 ++--
> >  include/linux/of.h       |  4 ++--
> >  6 files changed, 21 insertions(+), 21 deletions(-)
> > 
> > diff --git a/drivers/base/property.c b/drivers/base/property.c
> > index 1d0b116..dfd4de6 100644
> > --- a/drivers/base/property.c
> > +++ b/drivers/base/property.c
> > @@ -128,9 +128,9 @@ EXPORT_SYMBOL_GPL(device_property_present);
> >  bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname)
> >  {
> >  	if (is_of_node(fwnode))
> > -		return of_property_read_bool(of_node(fwnode), propname);
> > +		return of_property_read_bool(to_of_node(fwnode), propname);
> >  	else if (is_acpi_node(fwnode))
> > -		return !acpi_dev_prop_get(acpi_node(fwnode), propname, NULL);
> > +		return !acpi_dev_prop_get(to_acpi_node(fwnode), propname, NULL);
> > 
> >  	return !!pset_prop_get(to_pset(fwnode), propname);
> >  }
> > @@ -285,10 +285,10 @@ EXPORT_SYMBOL_GPL(device_property_read_string);
> >  ({ \
> >  	int _ret_; \
> >  	if (is_of_node(_fwnode_)) \
> > -		_ret_ = OF_DEV_PROP_READ_ARRAY(of_node(_fwnode_), _propname_, \
> > +		_ret_ = OF_DEV_PROP_READ_ARRAY(to_of_node(_fwnode_), _propname_, \
> >  					       _type_, _val_, _nval_); \
> >  	else if (is_acpi_node(_fwnode_)) \
> > -		_ret_ = acpi_dev_prop_read(acpi_node(_fwnode_), _propname_, \
> > +		_ret_ = acpi_dev_prop_read(to_acpi_node(_fwnode_), _propname_, \
> >  					   _proptype_, _val_, _nval_); \
> >  	else \
> >  		_ret_ = pset_prop_read_array(to_pset(_fwnode_), _propname_, \
> > @@ -424,11 +424,11 @@ int fwnode_property_read_string_array(struct fwnode_handle *fwnode,
> >  {
> >  	if (is_of_node(fwnode))
> >  		return val ?
> > -			of_property_read_string_array(of_node(fwnode), propname,
> > -						      val, nval) :
> > -			of_property_count_strings(of_node(fwnode), propname);
> > +			of_property_read_string_array(to_of_node(fwnode),
> > +						      propname, val, nval) :
> > +			of_property_count_strings(to_of_node(fwnode), propname);
> >  	else if (is_acpi_node(fwnode))
> > -		return acpi_dev_prop_read(acpi_node(fwnode), propname,
> > +		return acpi_dev_prop_read(to_acpi_node(fwnode), propname,
> >  					  DEV_PROP_STRING, val, nval);
> > 
> >  	return pset_prop_read_array(to_pset(fwnode), propname,
> > @@ -455,9 +455,9 @@ int fwnode_property_read_string(struct fwnode_handle *fwnode,
> >  				const char *propname, const char **val)
> >  {
> >  	if (is_of_node(fwnode))
> > -		return of_property_read_string(of_node(fwnode), propname, val);
> > +		return of_property_read_string(to_of_node(fwnode), propname, val);
> >  	else if (is_acpi_node(fwnode))
> > -		return acpi_dev_prop_read(acpi_node(fwnode), propname,
> > +		return acpi_dev_prop_read(to_acpi_node(fwnode), propname,
> >  					  DEV_PROP_STRING, val, 1);
> > 
> >  	return -ENXIO;
> > @@ -475,13 +475,13 @@ struct fwnode_handle *device_get_next_child_node(struct device *dev,
> >  	if (IS_ENABLED(CONFIG_OF) && dev->of_node) {
> >  		struct device_node *node;
> > 
> > -		node = of_get_next_available_child(dev->of_node, of_node(child));
> > +		node = of_get_next_available_child(dev->of_node, to_of_node(child));
> >  		if (node)
> >  			return &node->fwnode;
> >  	} else if (IS_ENABLED(CONFIG_ACPI)) {
> >  		struct acpi_device *node;
> > 
> > -		node = acpi_get_next_child(dev, acpi_node(child));
> > +		node = acpi_get_next_child(dev, to_acpi_node(child));
> >  		if (node)
> >  			return acpi_fwnode_handle(node);
> >  	}
> > @@ -500,7 +500,7 @@ EXPORT_SYMBOL_GPL(device_get_next_child_node);
> >  void fwnode_handle_put(struct fwnode_handle *fwnode)
> >  {
> >  	if (is_of_node(fwnode))
> > -		of_node_put(of_node(fwnode));
> > +		of_node_put(to_of_node(fwnode));
> >  }
> >  EXPORT_SYMBOL_GPL(fwnode_handle_put);
> > 
> > diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
> > index 6bc612b..5d8b2b3 100644
> > --- a/drivers/gpio/gpiolib.c
> > +++ b/drivers/gpio/gpiolib.c
> > @@ -2040,14 +2040,14 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
> >  	if (is_of_node(fwnode)) {
> >  		enum of_gpio_flags flags;
> > 
> > -		desc = of_get_named_gpiod_flags(of_node(fwnode), propname, 0,
> > +		desc = of_get_named_gpiod_flags(to_of_node(fwnode), propname, 0,
> >  						&flags);
> >  		if (!IS_ERR(desc))
> >  			active_low = flags & OF_GPIO_ACTIVE_LOW;
> >  	} else if (is_acpi_node(fwnode)) {
> >  		struct acpi_gpio_info info;
> > 
> > -		desc = acpi_get_gpiod_by_index(acpi_node(fwnode), propname, 0,
> > +		desc = acpi_get_gpiod_by_index(to_acpi_node(fwnode), propname, 0,
> >  					       &info);
> >  		if (!IS_ERR(desc))
> >  			active_low = info.active_low;
> > diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
> > index 15eb3f8..d2d54d6 100644
> > --- a/drivers/leds/leds-gpio.c
> > +++ b/drivers/leds/leds-gpio.c
> > @@ -191,7 +191,7 @@ static struct gpio_leds_priv *gpio_leds_create(struct platform_device *pdev)
> >  			goto err;
> >  		}
> > 
> > -		np = of_node(child);
> > +		np = to_of_node(child);
> > 
> >  		if (fwnode_property_present(child, "label")) {
> >  			fwnode_property_read_string(child, "label", &led.name);
> > diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
> > index 8de4fa9..1224be8 100644
> > --- a/include/acpi/acpi_bus.h
> > +++ b/include/acpi/acpi_bus.h
> > @@ -385,7 +385,7 @@ static inline bool is_acpi_node(struct fwnode_handle *fwnode)
> >  	return fwnode && fwnode->type == FWNODE_ACPI;
> >  }
> > 
> > -static inline struct acpi_device *acpi_node(struct fwnode_handle *fwnode)
> > +static inline struct acpi_device *to_acpi_node(struct fwnode_handle *fwnode)
> >  {
> >  	return is_acpi_node(fwnode) ?
> >  		container_of(fwnode, struct acpi_device, fwnode) : NULL;
> > diff --git a/include/linux/acpi.h b/include/linux/acpi.h
> > index e4da5e3..ec3c98e 100644
> > --- a/include/linux/acpi.h
> > +++ b/include/linux/acpi.h
> > @@ -53,7 +53,7 @@ static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
> >  	return adev ? adev->handle : NULL;
> >  }
> > 
> > -#define ACPI_COMPANION(dev)		acpi_node((dev)->fwnode)
> > +#define ACPI_COMPANION(dev)		to_acpi_node((dev)->fwnode)
> >  #define ACPI_COMPANION_SET(dev, adev)	set_primary_fwnode(dev, (adev) ? \
> >  	acpi_fwnode_handle(adev) : NULL)
> >  #define ACPI_HANDLE(dev)		acpi_device_handle(ACPI_COMPANION(dev))
> > @@ -473,7 +473,7 @@ static inline bool is_acpi_node(struct fwnode_handle *fwnode)
> >  	return false;
> >  }
> > 
> > -static inline struct acpi_device *acpi_node(struct fwnode_handle *fwnode)
> > +static inline struct acpi_device *to_acpi_node(struct fwnode_handle *fwnode)
> >  {
> >  	return NULL;
> >  }
> > diff --git a/include/linux/of.h b/include/linux/of.h
> > index b871ff9..f05fdce 100644
> > --- a/include/linux/of.h
> > +++ b/include/linux/of.h
> > @@ -128,7 +128,7 @@ static inline bool is_of_node(struct fwnode_handle *fwnode)
> >  	return fwnode && fwnode->type == FWNODE_OF;
> >  }
> > 
> > -static inline struct device_node *of_node(struct fwnode_handle *fwnode)
> > +static inline struct device_node *to_of_node(struct fwnode_handle *fwnode)
> >  {
> >  	return fwnode ? container_of(fwnode, struct device_node, fwnode) : NULL;
> >  }
> > @@ -387,7 +387,7 @@ static inline bool is_of_node(struct fwnode_handle *fwnode)
> >  	return false;
> >  }
> > 
> > -static inline struct device_node *of_node(struct fwnode_handle *fwnode)
> > +static inline struct device_node *to_of_node(struct fwnode_handle *fwnode)
> >  {
> >  	return NULL;
> >  }
> > --

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