linux-kernel - Re: [PATCH v2] Staging: iio: adc: fix sysfs files modes in ad7192.c

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Date:   Fri, 25 Nov 2016 21:53:21 -0800
From:   Boyan Vladinov <nayobix@...obix.org>
To:     gregkh@...uxfoundation.org, lars@...afoo.de,
        Michael.Hennerich@...log.com
Cc:     linux-iio@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] Staging: iio: adc: fix sysfs files modes in ad7192.c

Ignore patch version...comments below

Will resend it

On 24.11.2016 19:38, Boyan Vladinov wrote:
> Fixes sysfs entries user/group modes and coding style warnings
> found by checkpatch.pl tool. Also use the IIO_DEVICE_ATTR_[RO|RW] and
> macros to create device attributes
>
> Signed-off-by: Boyan Vladinov <nayobix@...obix.org>
> ---
>  drivers/staging/iio/adc/ad7192.c | 45 +++++++++++++++++++++++-----------------
>  1 file changed, 26 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
> index 1fb68c01abd5..630b04d8128f 100644
> --- a/drivers/staging/iio/adc/ad7192.c
> +++ b/drivers/staging/iio/adc/ad7192.c
> @@ -324,8 +324,8 @@ static int ad7192_setup(struct ad7192_state *st,
>  }
>
>  static ssize_t
> -ad7192_show_scale_available(struct device *dev,
> -			    struct device_attribute *attr, char *buf)
> +in_v_m_v_scale_available_show(struct device *dev, struct device_attribute *attr,
> +			      char *buf)
>  {
>  	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
>  	struct ad7192_state *st = iio_priv(indio_dev);
> @@ -340,15 +340,19 @@ ad7192_show_scale_available(struct device *dev,
>  	return len;
>  }
>
> -static IIO_DEVICE_ATTR_NAMED(in_v_m_v_scale_available,
> -			     in_voltage-voltage_scale_available,
behavior changed after removed `in_voltage-voltage_scale_available`
> -			     S_IRUGO, ad7192_show_scale_available, NULL, 0);
> +static ssize_t
> +in_voltage_scale_available_show(struct device *dev,
> +				struct device_attribute *attr, char *buf)
> +{
> +	return in_v_m_v_scale_available_show(dev, attr, buf);
> +}
> +
> +static IIO_DEVICE_ATTR_RO(in_v_m_v_scale_available, 0);
>
> -static IIO_DEVICE_ATTR(in_voltage_scale_available, S_IRUGO,
> -		       ad7192_show_scale_available, NULL, 0);
> +static IIO_DEVICE_ATTR_RO(in_voltage_scale_available, 0);
>
> -static ssize_t ad7192_show_ac_excitation(struct device *dev,
> -					 struct device_attribute *attr,
> +static ssize_t ac_excitation_en_show(struct device *dev,
> +				     struct device_attribute *attr,
>  					 char *buf)
>  {
>  	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
> @@ -357,8 +361,8 @@ static ssize_t ad7192_show_ac_excitation(struct device *dev,
>  	return sprintf(buf, "%d\n", !!(st->mode & AD7192_MODE_ACX));
>  }
>
> -static ssize_t ad7192_show_bridge_switch(struct device *dev,
> -					 struct device_attribute *attr,
> +static ssize_t bridge_switch_en_show(struct device *dev,
> +				     struct device_attribute *attr,
>  					 char *buf)
>  {
>  	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
> @@ -367,8 +371,8 @@ static ssize_t ad7192_show_bridge_switch(struct device *dev,
>  	return sprintf(buf, "%d\n", !!(st->gpocon & AD7192_GPOCON_BPDSW));
>  }
>
> -static ssize_t ad7192_set(struct device *dev,
> -			  struct device_attribute *attr,
> +static ssize_t bridge_switch_en_store(struct device *dev,
> +				      struct device_attribute *attr,
>  			  const char *buf,
>  			  size_t len)
>  {
> @@ -412,13 +416,16 @@ static ssize_t ad7192_set(struct device *dev,
>  	return ret ? ret : len;
>  }
>
> -static IIO_DEVICE_ATTR(bridge_switch_en, S_IRUGO | S_IWUSR,
> -		       ad7192_show_bridge_switch, ad7192_set,
> -		       AD7192_REG_GPOCON);
> +static ssize_t ac_excitation_en_store(struct device *dev,
> +				      struct device_attribute *attr,
> +					 const char *buf, size_t len)
> +{
> +	return bridge_switch_en_store(dev, attr, buf, len);
> +}
> +
> +static IIO_DEVICE_ATTR_RW(bridge_switch_en, AD7192_REG_GPOCON);
>
> -static IIO_DEVICE_ATTR(ac_excitation_en, S_IRUGO | S_IWUSR,
> -		       ad7192_show_ac_excitation, ad7192_set,
> -		       AD7192_REG_MODE);
> +static IIO_DEVICE_ATTR_RW(ac_excitation_en, AD7192_REG_MODE);
>
>  static struct attribute *ad7192_attributes[] = {
>  	&iio_dev_attr_in_v_m_v_scale_available.dev_attr.attr,
>