[PATCH] iio: bmi160: use variable names for sizeof() operator

[PATCH] iio: bmi160: use variable names for sizeof() operator

[Alison Schofield]

Replace the types with the actual variable names when using the
sizeof() operator.  This is kernel preferred style as it protects
against future changes to variable type.

Signed-off-by: Alison Schofield <amsfield22@gmail.com>
---
 drivers/iio/imu/bmi160/bmi160_core.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/imu/bmi160/bmi160_core.c b/drivers/iio/imu/bmi160/bmi160_core.c
index 5355507..1e7c88b 100644
--- a/drivers/iio/imu/bmi160/bmi160_core.c
+++ b/drivers/iio/imu/bmi160/bmi160_core.c
@@ -338,9 +338,9 @@ static int bmi160_get_data(struct bmi160_data *data, int chan_type,
 	__le16 sample;
 	enum bmi160_sensor_type t = bmi160_to_sensor(chan_type);
 
-	reg = bmi160_regs[t].data + (axis - IIO_MOD_X) * sizeof(__le16);
+	reg = bmi160_regs[t].data + (axis - IIO_MOD_X) * sizeof(sample);
 
-	ret = regmap_bulk_read(data->regmap, reg, &sample, sizeof(__le16));
+	ret = regmap_bulk_read(data->regmap, reg, &sample, sizeof(sample));
 	if (ret < 0)
 		return ret;
 
@@ -405,8 +405,8 @@ static irqreturn_t bmi160_trigger_handler(int irq, void *p)
 
 	for_each_set_bit(i, indio_dev->active_scan_mask,
 			 indio_dev->masklength) {
-		ret = regmap_bulk_read(data->regmap, base + i * sizeof(__le16),
-				       &sample, sizeof(__le16));
+		ret = regmap_bulk_read(data->regmap, base + i * sizeof(sample),
+				       &sample, sizeof(sample));
 		if (ret < 0)
 			goto done;
 		buf[j++] = sample;
-- 
2.1.4

Re: [PATCH] iio: bmi160: use variable names for sizeof() operator

[Jonathan Cameron]

On 16/01/17 05:01, Alison Schofield wrote:
> Replace the types with the actual variable names when using the
> sizeof() operator.  This is kernel preferred style as it protects
> against future changes to variable type.
> 
> Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Sensible change from an obviously correct stand point.
Future changes to the type are a non starter here given this is a feature of
the hardware!  I've dropped that bit of the commit message and added
something about readability.

Jonathan
> ---
>  drivers/iio/imu/bmi160/bmi160_core.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/iio/imu/bmi160/bmi160_core.c b/drivers/iio/imu/bmi160/bmi160_core.c
> index 5355507..1e7c88b 100644
> --- a/drivers/iio/imu/bmi160/bmi160_core.c
> +++ b/drivers/iio/imu/bmi160/bmi160_core.c
> @@ -338,9 +338,9 @@ static int bmi160_get_data(struct bmi160_data *data, int chan_type,
>  	__le16 sample;
>  	enum bmi160_sensor_type t = bmi160_to_sensor(chan_type);
>  
> -	reg = bmi160_regs[t].data + (axis - IIO_MOD_X) * sizeof(__le16);
> +	reg = bmi160_regs[t].data + (axis - IIO_MOD_X) * sizeof(sample);
>  
> -	ret = regmap_bulk_read(data->regmap, reg, &sample, sizeof(__le16));
> +	ret = regmap_bulk_read(data->regmap, reg, &sample, sizeof(sample));
>  	if (ret < 0)
>  		return ret;
>  
> @@ -405,8 +405,8 @@ static irqreturn_t bmi160_trigger_handler(int irq, void *p)
>  
>  	for_each_set_bit(i, indio_dev->active_scan_mask,
>  			 indio_dev->masklength) {
> -		ret = regmap_bulk_read(data->regmap, base + i * sizeof(__le16),
> -				       &sample, sizeof(__le16));
> +		ret = regmap_bulk_read(data->regmap, base + i * sizeof(sample),
> +				       &sample, sizeof(sample));
>  		if (ret < 0)
>  			goto done;
>  		buf[j++] = sample;
>