Re: [PATCH 06/11] staging: iio: tsl2x7x: make logging consistent and correct newlines

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On Wed, 21 Mar 2018 06:29:07 -0400
Brian Masney <masneyb@xxxxxxxxxxxxx> wrote:

> This patch updates all of the logging commands so that they are
> consistent with the other messages, includes __func__ in the message,
> and all of the messages include newlines. This patch also removes some
> debug log messages.
> 
> Signed-off-by: Brian Masney <masneyb@xxxxxxxxxxxxx>
Hmm. This is definitely an improvement, but at somepoint we may want
to drop all of the __func__ usage as the dynamic debug system can
provide back traces which obviously include this info.

So might need a follow up, though perhaps not pre moving out of staging
as this really isn't important.

Hence, applied.

Thanks,

Jonathan

> ---
> Changes since v1:
> - Remove some debug messages and every log message doesn't have to have
>   the function name.
> - Earlier patches in this current series dropped some of the debug
>   messages that were in v1.
> 
>  drivers/staging/iio/light/tsl2x7x.c | 42 ++++++++++++++-----------------------
>  1 file changed, 16 insertions(+), 26 deletions(-)
> 
> diff --git a/drivers/staging/iio/light/tsl2x7x.c b/drivers/staging/iio/light/tsl2x7x.c
> index f7e7fcc17059..07ce3076a05d 100644
> --- a/drivers/staging/iio/light/tsl2x7x.c
> +++ b/drivers/staging/iio/light/tsl2x7x.c
> @@ -374,7 +374,8 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
>  		ret = i2c_smbus_read_byte_data(chip->client, reg);
>  		if (ret < 0) {
>  			dev_err(&chip->client->dev,
> -				"failed to read. err=%x\n", ret);
> +				"%s: failed to read from register %x: %d\n",
> +				__func__, reg, ret);
>  			goto out_unlock;
>  		}
>  
> @@ -416,7 +417,9 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
>  
>  	/* note: lux is 31 bit max at this point */
>  	if (ch1lux > ch0lux) {
> -		dev_dbg(&chip->client->dev, "ch1lux > ch0lux-return last value\n");
> +		dev_dbg(&chip->client->dev,
> +			"%s: ch1lux > ch0lux; returning last value\n",
> +			__func__);
>  		ret = chip->als_cur_info.lux;
>  		goto out_unlock;
>  	}
> @@ -591,8 +594,6 @@ static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev)
>  		return -ERANGE;
>  
>  	chip->settings.als_gain_trim = ret;
> -	dev_info(&chip->client->dev,
> -		 "%s als_calibrate completed\n", chip->client->name);
>  
>  	return ret;
>  }
> @@ -674,12 +675,14 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
>  	 */
>  	for (i = 0, dev_reg = chip->tsl2x7x_config;
>  			i < TSL2X7X_MAX_CONFIG_REG; i++) {
> -		ret = i2c_smbus_write_byte_data(chip->client,
> -						TSL2X7X_CMD_REG + i,
> +		int reg = TSL2X7X_CMD_REG + i;
> +
> +		ret = i2c_smbus_write_byte_data(chip->client, reg,
>  						*dev_reg++);
>  		if (ret < 0) {
>  			dev_err(&chip->client->dev,
> -				"failed on write to reg %d.\n", i);
> +				"%s: failed to write to register %x: %d\n",
> +				__func__, reg, ret);
>  			return ret;
>  		}
>  	}
> @@ -907,15 +910,11 @@ static ssize_t in_illuminance0_lux_table_store(struct device *dev,
>  	 */
>  	n = value[0];
>  	if ((n % 3) || n < 6 ||
> -	    n > ((ARRAY_SIZE(chip->tsl2x7x_device_lux) - 1) * 3)) {
> -		dev_info(dev, "LUX TABLE INPUT ERROR 1 Value[0]=%d\n", n);
> +	    n > ((ARRAY_SIZE(chip->tsl2x7x_device_lux) - 1) * 3))
>  		return -EINVAL;
> -	}
>  
> -	if ((value[(n - 2)] | value[(n - 1)] | value[n]) != 0) {
> -		dev_info(dev, "LUX TABLE INPUT ERROR 2 Value[0]=%d\n", n);
> +	if ((value[(n - 2)] | value[(n - 1)] | value[n]) != 0)
>  		return -EINVAL;
> -	}
>  
>  	if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING) {
>  		ret = tsl2x7x_chip_off(indio_dev);
> @@ -1048,15 +1047,10 @@ static int tsl2x7x_write_event_value(struct iio_dev *indio_dev,
>  			chip->settings.persistence &= 0xF0;
>  			chip->settings.persistence |=
>  				(filter_delay & 0x0F);
> -			dev_info(&chip->client->dev, "%s: ALS persistence = %d",
> -				 __func__, filter_delay);
>  		} else {
>  			chip->settings.persistence &= 0x0F;
>  			chip->settings.persistence |=
>  				((filter_delay << 4) & 0xF0);
> -			dev_info(&chip->client->dev,
> -				 "%s: Proximity persistence = %d",
> -				 __func__, filter_delay);
>  		}
>  		ret = 0;
>  		break;
> @@ -1269,9 +1263,6 @@ static int tsl2x7x_write_raw(struct iio_dev *indio_dev,
>  	case IIO_CHAN_INFO_INT_TIME:
>  		chip->settings.als_time =
>  			TSL2X7X_MAX_TIMER_CNT - (val2 / TSL2X7X_MIN_ITIME);
> -
> -		dev_info(&chip->client->dev, "%s: als time = %d",
> -			 __func__, chip->settings.als_time);
>  		break;
>  	default:
>  		return -EINVAL;
> @@ -1633,8 +1624,9 @@ static int tsl2x7x_probe(struct i2c_client *clientp,
>  
>  	ret = i2c_smbus_write_byte(clientp, TSL2X7X_CMD_REG | TSL2X7X_CNTRL);
>  	if (ret < 0) {
> -		dev_err(&clientp->dev, "write to cmd reg failed. err = %d\n",
> -			ret);
> +		dev_err(&clientp->dev,
> +			"%s: Failed to write to CMD register: %d\n",
> +			__func__, ret);
>  		return ret;
>  	}
>  
> @@ -1664,7 +1656,7 @@ static int tsl2x7x_probe(struct i2c_client *clientp,
>  						indio_dev);
>  		if (ret) {
>  			dev_err(&clientp->dev,
> -				"%s: irq request failed", __func__);
> +				"%s: irq request failed\n", __func__);
>  			return ret;
>  		}
>  	}
> @@ -1681,8 +1673,6 @@ static int tsl2x7x_probe(struct i2c_client *clientp,
>  		return ret;
>  	}
>  
> -	dev_info(&clientp->dev, "%s Light sensor found.\n", id->name);
> -
>  	return 0;
>  }
>  

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