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Groups > linux.kernel > #1705296 > unrolled thread

[PATCH v2] hwmon: adt7475: constify attribute_group structures

Started byArvind Yadav <arvind.yadav.cs@gmail.com>
First post2017-08-07 11:40 +0200
Last post2017-08-09 06:20 +0200
Articles 3 — 2 participants

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  [PATCH v2] hwmon: adt7475: constify attribute_group structures Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-08-07 11:40 +0200
    Re: [v2] hwmon: adt7475: constify attribute_group structures Guenter Roeck <linux@roeck-us.net> - 2017-08-09 04:10 +0200
      Re: [v2] hwmon: adt7475: constify attribute_group structures Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-08-09 06:20 +0200

#1705296 — [PATCH v2] hwmon: adt7475: constify attribute_group structures

FromArvind Yadav <arvind.yadav.cs@gmail.com>
Date2017-08-07 11:40 +0200
Subject[PATCH v2] hwmon: adt7475: constify attribute_group structures
Message-ID<ubMFX-6qF-5@gated-at.bofh.it>
attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work with
const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
change in v2:
            subject was not correct. Removed 'wusbhc' and '.'.

 drivers/hwmon/adt7475.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c
index 1baa213..9ef8499 100644
--- a/drivers/hwmon/adt7475.c
+++ b/drivers/hwmon/adt7475.c
@@ -1319,14 +1319,14 @@ static SENSOR_DEVICE_ATTR_2(pwm3_stall_disable, S_IRUGO | S_IWUSR,
 	NULL
 };
 
-static struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
-static struct attribute_group fan4_attr_group = { .attrs = fan4_attrs };
-static struct attribute_group pwm2_attr_group = { .attrs = pwm2_attrs };
-static struct attribute_group in0_attr_group = { .attrs = in0_attrs };
-static struct attribute_group in3_attr_group = { .attrs = in3_attrs };
-static struct attribute_group in4_attr_group = { .attrs = in4_attrs };
-static struct attribute_group in5_attr_group = { .attrs = in5_attrs };
-static struct attribute_group vid_attr_group = { .attrs = vid_attrs };
+static const struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
+static const struct attribute_group fan4_attr_group = { .attrs = fan4_attrs };
+static const struct attribute_group pwm2_attr_group = { .attrs = pwm2_attrs };
+static const struct attribute_group in0_attr_group = { .attrs = in0_attrs };
+static const struct attribute_group in3_attr_group = { .attrs = in3_attrs };
+static const struct attribute_group in4_attr_group = { .attrs = in4_attrs };
+static const struct attribute_group in5_attr_group = { .attrs = in5_attrs };
+static const struct attribute_group vid_attr_group = { .attrs = vid_attrs };
 
 static int adt7475_detect(struct i2c_client *client,
 			  struct i2c_board_info *info)
-- 
1.9.1

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#1707005 — Re: [v2] hwmon: adt7475: constify attribute_group structures

FromGuenter Roeck <linux@roeck-us.net>
Date2017-08-09 04:10 +0200
SubjectRe: [v2] hwmon: adt7475: constify attribute_group structures
Message-ID<ucoBB-kV-7@gated-at.bofh.it>
In reply to#1705296
On Mon, Aug 07, 2017 at 03:06:29PM +0530, Arvind Yadav wrote:
> attribute_group are not supposed to change at runtime. All functions
> working with attribute_group provided by <linux/sysfs.h> work with
> const attribute_group. So mark the non-const structs as const.
> 
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>

Kind of confused by this one. I applied a similar patch from you
back in July ??

Guenter

> ---
> change in v2:
>             subject was not correct. Removed 'wusbhc' and '.'.
> 
>  drivers/hwmon/adt7475.c | 16 ++++++++--------
>  1 file changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c
> index 1baa213..9ef8499 100644
> --- a/drivers/hwmon/adt7475.c
> +++ b/drivers/hwmon/adt7475.c
> @@ -1319,14 +1319,14 @@ static SENSOR_DEVICE_ATTR_2(pwm3_stall_disable, S_IRUGO | S_IWUSR,
>  	NULL
>  };
>  
> -static struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
> -static struct attribute_group fan4_attr_group = { .attrs = fan4_attrs };
> -static struct attribute_group pwm2_attr_group = { .attrs = pwm2_attrs };
> -static struct attribute_group in0_attr_group = { .attrs = in0_attrs };
> -static struct attribute_group in3_attr_group = { .attrs = in3_attrs };
> -static struct attribute_group in4_attr_group = { .attrs = in4_attrs };
> -static struct attribute_group in5_attr_group = { .attrs = in5_attrs };
> -static struct attribute_group vid_attr_group = { .attrs = vid_attrs };
> +static const struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
> +static const struct attribute_group fan4_attr_group = { .attrs = fan4_attrs };
> +static const struct attribute_group pwm2_attr_group = { .attrs = pwm2_attrs };
> +static const struct attribute_group in0_attr_group = { .attrs = in0_attrs };
> +static const struct attribute_group in3_attr_group = { .attrs = in3_attrs };
> +static const struct attribute_group in4_attr_group = { .attrs = in4_attrs };
> +static const struct attribute_group in5_attr_group = { .attrs = in5_attrs };
> +static const struct attribute_group vid_attr_group = { .attrs = vid_attrs };
>  
>  static int adt7475_detect(struct i2c_client *client,
>  			  struct i2c_board_info *info)

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#1707047 — Re: [v2] hwmon: adt7475: constify attribute_group structures

FromArvind Yadav <arvind.yadav.cs@gmail.com>
Date2017-08-09 06:20 +0200
SubjectRe: [v2] hwmon: adt7475: constify attribute_group structures
Message-ID<ucqDn-1IM-1@gated-at.bofh.it>
In reply to#1707005
yes, Sorry for noise. After rebase, it' was showing unchanged.


On Wednesday 09 August 2017 07:35 AM, Guenter Roeck wrote:
> On Mon, Aug 07, 2017 at 03:06:29PM +0530, Arvind Yadav wrote:
>> attribute_group are not supposed to change at runtime. All functions
>> working with attribute_group provided by <linux/sysfs.h> work with
>> const attribute_group. So mark the non-const structs as const.
>>
>> Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
> Kind of confused by this one. I applied a similar patch from you
> back in July ??
>
> Guenter
>
>> ---
>> change in v2:
>>              subject was not correct. Removed 'wusbhc' and '.'.
>>
>>   drivers/hwmon/adt7475.c | 16 ++++++++--------
>>   1 file changed, 8 insertions(+), 8 deletions(-)
>>
>> diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c
>> index 1baa213..9ef8499 100644
>> --- a/drivers/hwmon/adt7475.c
>> +++ b/drivers/hwmon/adt7475.c
>> @@ -1319,14 +1319,14 @@ static SENSOR_DEVICE_ATTR_2(pwm3_stall_disable, S_IRUGO | S_IWUSR,
>>   	NULL
>>   };
>>   
>> -static struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
>> -static struct attribute_group fan4_attr_group = { .attrs = fan4_attrs };
>> -static struct attribute_group pwm2_attr_group = { .attrs = pwm2_attrs };
>> -static struct attribute_group in0_attr_group = { .attrs = in0_attrs };
>> -static struct attribute_group in3_attr_group = { .attrs = in3_attrs };
>> -static struct attribute_group in4_attr_group = { .attrs = in4_attrs };
>> -static struct attribute_group in5_attr_group = { .attrs = in5_attrs };
>> -static struct attribute_group vid_attr_group = { .attrs = vid_attrs };
>> +static const struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
>> +static const struct attribute_group fan4_attr_group = { .attrs = fan4_attrs };
>> +static const struct attribute_group pwm2_attr_group = { .attrs = pwm2_attrs };
>> +static const struct attribute_group in0_attr_group = { .attrs = in0_attrs };
>> +static const struct attribute_group in3_attr_group = { .attrs = in3_attrs };
>> +static const struct attribute_group in4_attr_group = { .attrs = in4_attrs };
>> +static const struct attribute_group in5_attr_group = { .attrs = in5_attrs };
>> +static const struct attribute_group vid_attr_group = { .attrs = vid_attrs };
>>   
>>   static int adt7475_detect(struct i2c_client *client,
>>   			  struct i2c_board_info *info)
~arvind

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