Re: [PATCH 1/3] acpi: video: trivial costmetic cleanups

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On 08/02/2013 07:43 AM, Felipe Contreras wrote:
> Signed-off-by: Felipe Contreras <felipe.contreras@xxxxxxxxx>

Please add change log explaining what you have changed.
It seems that the patch modify comment style only, some add a space and
some change spaces to tab, is it the case?

Thanks,
Aaron

> ---
>  drivers/acpi/video.c | 114 +++++++++++++++++++++++++++------------------------
>  1 file changed, 61 insertions(+), 53 deletions(-)
> 
> diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
> index 0ec434d..f021bf4 100644
> --- a/drivers/acpi/video.c
> +++ b/drivers/acpi/video.c
> @@ -1,5 +1,5 @@
>  /*
> - *  video.c - ACPI Video Driver ($Revision:$)
> + *  video.c - ACPI Video Driver
>   *
>   *  Copyright (C) 2004 Luming Yu <luming.yu@xxxxxxxxx>
>   *  Copyright (C) 2004 Bruno Ducrot <ducrot@xxxxxxxxxxxx>
> @@ -118,26 +118,26 @@ struct acpi_video_bus_flags {
>  };
>  
>  struct acpi_video_bus_cap {
> -	u8 _DOS:1;		/*Enable/Disable output switching */
> -	u8 _DOD:1;		/*Enumerate all devices attached to display adapter */
> -	u8 _ROM:1;		/*Get ROM Data */
> -	u8 _GPD:1;		/*Get POST Device */
> -	u8 _SPD:1;		/*Set POST Device */
> -	u8 _VPO:1;		/*Video POST Options */
> +	u8 _DOS:1;		/* Enable/Disable output switching */
> +	u8 _DOD:1;		/* Enumerate all devices attached to display adapter */
> +	u8 _ROM:1;		/* Get ROM Data */
> +	u8 _GPD:1;		/* Get POST Device */
> +	u8 _SPD:1;		/* Set POST Device */
> +	u8 _VPO:1;		/* Video POST Options */
>  	u8 reserved:2;
>  };
>  
>  struct acpi_video_device_attrib {
>  	u32 display_index:4;	/* A zero-based instance of the Display */
> -	u32 display_port_attachment:4;	/*This field differentiates the display type */
> -	u32 display_type:4;	/*Describe the specific type in use */
> -	u32 vendor_specific:4;	/*Chipset Vendor Specific */
> -	u32 bios_can_detect:1;	/*BIOS can detect the device */
> -	u32 depend_on_vga:1;	/*Non-VGA output device whose power is related to 
> +	u32 display_port_attachment:4;	/* This field differentiates the display type */
> +	u32 display_type:4;	/* Describe the specific type in use */
> +	u32 vendor_specific:4;	/* Chipset Vendor Specific */
> +	u32 bios_can_detect:1;	/* BIOS can detect the device */
> +	u32 depend_on_vga:1;	/* Non-VGA output device whose power is related to
>  				   the VGA device. */
> -	u32 pipe_id:3;		/*For VGA multiple-head devices. */
> -	u32 reserved:10;	/*Must be 0 */
> -	u32 device_id_scheme:1;	/*Device ID Scheme */
> +	u32 pipe_id:3;		/* For VGA multiple-head devices. */
> +	u32 reserved:10;	/* Must be 0 */
> +	u32 device_id_scheme:1;	/* Device ID Scheme */
>  };
>  
>  struct acpi_video_enumerated_device {
> @@ -174,17 +174,17 @@ struct acpi_video_device_flags {
>  };
>  
>  struct acpi_video_device_cap {
> -	u8 _ADR:1;		/*Return the unique ID */
> -	u8 _BCL:1;		/*Query list of brightness control levels supported */
> -	u8 _BCM:1;		/*Set the brightness level */
> +	u8 _ADR:1;		/* Return the unique ID */
> +	u8 _BCL:1;		/* Query list of brightness control levels supported */
> +	u8 _BCM:1;		/* Set the brightness level */
>  	u8 _BQC:1;		/* Get current brightness level */
>  	u8 _BCQ:1;		/* Some buggy BIOS uses _BCQ instead of _BQC */
> -	u8 _DDC:1;		/*Return the EDID for this device */
> +	u8 _DDC:1;		/* Return the EDID for this device */
>  };
>  
>  struct acpi_video_brightness_flags {
>  	u8 _BCL_no_ac_battery_levels:1;	/* no AC/Battery levels in _BCL */
> -	u8 _BCL_reversed:1;		/* _BCL package is in a reversed order*/
> +	u8 _BCL_reversed:1;		/* _BCL package is in a reversed order */
>  	u8 _BCL_use_index:1;		/* levels in _BCL are index values */
>  	u8 _BCM_use_index:1;		/* input of _BCM is an index value */
>  	u8 _BQC_use_index:1;		/* _BQC returns an index value */
> @@ -231,7 +231,7 @@ static int acpi_video_get_next_level(struct acpi_video_device *device,
>  static int acpi_video_switch_brightness(struct acpi_video_device *device,
>  					 int event);
>  
> -/*backlight device sysfs support*/
> +/* backlight device sysfs support */
>  static int acpi_video_get_brightness(struct backlight_device *bd)
>  {
>  	unsigned long long cur_level;
> @@ -243,8 +243,10 @@ static int acpi_video_get_brightness(struct backlight_device *bd)
>  		return -EINVAL;
>  	for (i = 2; i < vd->brightness->count; i++) {
>  		if (vd->brightness->levels[i] == cur_level)
> -			/* The first two entries are special - see page 575
> -			   of the ACPI spec 3.0 */
> +			/*
> +			 * The first two entries are special - see page 575
> +			 * of the ACPI spec 3.0
> +			 */
>  			return i-2;
>  	}
>  	return 0;
> @@ -316,9 +318,11 @@ static const struct thermal_cooling_device_ops video_cooling_ops = {
>  	.set_cur_state = video_set_cur_state,
>  };
>  
> -/* --------------------------------------------------------------------------
> -                               Video Management
> -   -------------------------------------------------------------------------- */
> +/*
> + * --------------------------------------------------------------------------
> + *                             Video Management
> + * --------------------------------------------------------------------------
> + */
>  
>  static int
>  acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
> @@ -556,7 +560,8 @@ acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
>  				      buf));
>  			device->cap._BQC = device->cap._BCQ = 0;
>  		} else {
> -			/* Fixme:
> +			/*
> +			 * Fixme:
>  			 * should we return an error or ignore this failure?
>  			 * dev->brightness->curr is a cached value which stores
>  			 * the correct current backlight level in most cases.
> @@ -615,8 +620,8 @@ acpi_video_device_EDID(struct acpi_video_device *device,
>  
>  /*
>   *  Arg:
> - *  	video		: video bus device pointer
> - *	bios_flag	: 
> + *	video		: video bus device pointer
> + *	bios_flag	:
>   *		0.	The system BIOS should NOT automatically switch(toggle)
>   *			the active display output.
>   *		1.	The system BIOS should automatically switch (toggle) the
> @@ -628,9 +633,9 @@ acpi_video_device_EDID(struct acpi_video_device *device,
>   *	lcd_flag	:
>   *		0.	The system BIOS should automatically control the brightness level
>   *			of the LCD when the power changes from AC to DC
> - *		1. 	The system BIOS should NOT automatically control the brightness 
> + *		1.	The system BIOS should NOT automatically control the brightness
>   *			level of the LCD when the power changes from AC to DC.
> - * Return Value:
> + *  Return Value:
>   *		-EINVAL	wrong arg.
>   */
>  
> @@ -717,8 +722,8 @@ static int acpi_video_bqc_quirk(struct acpi_video_device *device,
>  
>  
>  /*
> - *  Arg:	
> - *  	device	: video output device (LCD, CRT, ..)
> + *  Arg:
> + *	device	: video output device (LCD, CRT, ..)
>   *
>   *  Return Value:
>   *	Maximum brightness level
> @@ -877,7 +882,7 @@ out:
>   *	device	: video output device (LCD, CRT, ..)
>   *
>   *  Return Value:
> - *  	None
> + *	None
>   *
>   *  Find out all required AML methods defined under the output
>   *  device.
> @@ -988,11 +993,11 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
>  }
>  
>  /*
> - *  Arg:	
> - *  	device	: video output device (VGA)
> + *  Arg:
> + *	device	: video output device (VGA)
>   *
>   *  Return Value:
> - *  	None
> + *	None
>   *
>   *  Find out all required AML methods defined under the video bus device.
>   */
> @@ -1039,7 +1044,8 @@ static int acpi_video_bus_check(struct acpi_video_bus *video)
>  		return -ENODEV;
>  	pci_dev_put(dev);
>  
> -	/* Since there is no HID, CID and so on for VGA driver, we have
> +	/*
> +	 * Since there is no HID, CID and so on for VGA driver, we have
>  	 * to check well known required nodes.
>  	 */
>  
> @@ -1069,9 +1075,11 @@ static int acpi_video_bus_check(struct acpi_video_bus *video)
>  	return status;
>  }
>  
> -/* --------------------------------------------------------------------------
> -                                 Driver Interface
> -   -------------------------------------------------------------------------- */
> +/*
> + * --------------------------------------------------------------------------
> + *                               Driver Interface
> + * --------------------------------------------------------------------------
> + */
>  
>  /* device interface */
>  static struct acpi_video_device_attrib*
> @@ -1192,12 +1200,12 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
>  
>  /*
>   *  Arg:
> - *  	video	: video bus device 
> + *	video	: video bus device
>   *
>   *  Return:
> - *  	none
> - *  
> - *  Enumerate the video device list of the video bus, 
> + *	none
> + *
> + *  Enumerate the video device list of the video bus,
>   *  bind the ids with the corresponding video devices
>   *  under the video bus.
>   */
> @@ -1216,13 +1224,13 @@ static void acpi_video_device_rebind(struct acpi_video_bus *video)
>  
>  /*
>   *  Arg:
> - *  	video	: video bus device 
> - *  	device	: video output device under the video 
> - *  		bus
> + *	video	: video bus device
> + *	device	: video output device under the video
> + *		bus
>   *
>   *  Return:
> - *  	none
> - *  
> + *	none
> + *
>   *  Bind the ids with the corresponding video devices
>   *  under the video bus.
>   */
> @@ -1245,11 +1253,11 @@ acpi_video_device_bind(struct acpi_video_bus *video,
>  
>  /*
>   *  Arg:
> - *  	video	: video bus device 
> + *	video	: video bus device
>   *
>   *  Return:
> - *  	< 0	: error
> - *  
> + *	< 0	: error
> + *
>   *  Call _DOD to enumerate all devices attached to display adapter
>   *
>   */
> 

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