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From: Nathan Chancellor <nathan@kernel.org>
To: Jonathan Cameron <jic23@kernel.org>
Cc: linux-iio@vger.kernel.org, "Arnd Bergmann" <arnd@kernel.org>,
	"Andy Shevchenko" <andy.shevchenko@gmail.com>,
	"Joe Perches" <joe@perches.com>,
	"Jonathan Cameron" <Jonathan.Cameron@huawei.com>,
	"Maxime Roussin-Bélanger" <maxime.roussinbelanger@gmail.com>
Subject: Re: [PATCH v2 2/4] iio: light: si1133: Drop remaining uses of %hhx format string.
Date: Wed, 9 Jun 2021 08:27:54 -0700	[thread overview]
Message-ID: <YMDd+o8joxdJonLU@Ryzen-9-3900X> (raw)
In-Reply-To: <20210603180612.3635250-3-jic23@kernel.org>

On Thu, Jun 03, 2021 at 07:06:10PM +0100, Jonathan Cameron wrote:
> From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> 
> Since:
> commit cbacb5ab0aa0 ("docs: printk-formats: Stop encouraging use of
> unnecessary %h[xudi] and %hh[xudi]")
> use of these format strings has been discouraged.
> 
> Use the 0x02x form as the length specifier when used with # includes
> the 0x prefix and is very unlikely to be what was intended by the author.
> 
> As there are not that many in IIO, this is part of an effort to clear
> them out so we don't have any instances that might get copied into
> new drivers.
> 
> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> Cc: Maxime Roussin-Bélanger <maxime.roussinbelanger@gmail.com>
> Cc: Nathan Chancellor <nathan@kernel.org>

Reviewed-by: Nathan Chancellor <nathan@kernel.org>

> ---
>  drivers/iio/light/si1133.c | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/iio/light/si1133.c b/drivers/iio/light/si1133.c
> index 0accea7090ee..f8c9b2cc322e 100644
> --- a/drivers/iio/light/si1133.c
> +++ b/drivers/iio/light/si1133.c
> @@ -352,22 +352,22 @@ static int si1133_parse_response_err(struct device *dev, u32 resp, u8 cmd)
>  
>  	switch (resp) {
>  	case SI1133_ERR_OUTPUT_BUFFER_OVERFLOW:
> -		dev_warn(dev, "Output buffer overflow: %#02hhx\n", cmd);
> +		dev_warn(dev, "Output buffer overflow: 0x%02x\n", cmd);
>  		return -EOVERFLOW;
>  	case SI1133_ERR_SATURATION_ADC_OR_OVERFLOW_ACCUMULATION:
> -		dev_warn(dev, "Saturation of the ADC or overflow of accumulation: %#02hhx\n",
> +		dev_warn(dev, "Saturation of the ADC or overflow of accumulation: 0x%02x\n",
>  			 cmd);
>  		return -EOVERFLOW;
>  	case SI1133_ERR_INVALID_LOCATION_CMD:
>  		dev_warn(dev,
> -			 "Parameter access to an invalid location: %#02hhx\n",
> +			 "Parameter access to an invalid location: 0x%02x\n",
>  			 cmd);
>  		return -EINVAL;
>  	case SI1133_ERR_INVALID_CMD:
> -		dev_warn(dev, "Invalid command %#02hhx\n", cmd);
> +		dev_warn(dev, "Invalid command 0x%02x\n", cmd);
>  		return -EINVAL;
>  	default:
> -		dev_warn(dev, "Unknown error %#02hhx\n", cmd);
> +		dev_warn(dev, "Unknown error 0x%02x\n", cmd);
>  		return -EINVAL;
>  	}
>  }
> @@ -400,7 +400,7 @@ static int si1133_command(struct si1133_data *data, u8 cmd)
>  
>  	err = regmap_write(data->regmap, SI1133_REG_COMMAND, cmd);
>  	if (err) {
> -		dev_warn(dev, "Failed to write command %#02hhx, ret=%d\n", cmd,
> +		dev_warn(dev, "Failed to write command 0x%02x, ret=%d\n", cmd,
>  			 err);
>  		goto out;
>  	}
> @@ -425,7 +425,7 @@ static int si1133_command(struct si1133_data *data, u8 cmd)
>  					       SI1133_CMD_TIMEOUT_MS * 1000);
>  		if (err) {
>  			dev_warn(dev,
> -				 "Failed to read command %#02hhx, ret=%d\n",
> +				 "Failed to read command 0x%02x, ret=%d\n",
>  				 cmd, err);
>  			goto out;
>  		}
> -- 
> 2.31.1

  reply	other threads:[~2021-06-09 15:27 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-03 18:06 [PATCH v2 0/4] iio: Drop use of %hhx and %hx format strings Jonathan Cameron
2021-06-03 18:06 ` [PATCH v2 1/4] iio: si1133: fix format string warnings Jonathan Cameron
2021-06-09 15:27   ` Nathan Chancellor
2021-06-03 18:06 ` [PATCH v2 2/4] iio: light: si1133: Drop remaining uses of %hhx format string Jonathan Cameron
2021-06-09 15:27   ` Nathan Chancellor [this message]
2021-06-03 18:06 ` [PATCH v2 3/4] iio: imu: inv_mpu6050: Drop use " Jonathan Cameron
2021-06-09 15:28   ` Nathan Chancellor
2021-06-03 18:06 ` [PATCH v2 4/4] iio: light: si1145: Drop use of %hhx format specifier Jonathan Cameron
2021-06-09 15:29   ` Nathan Chancellor
2021-06-03 18:58 ` General kernel misuse of vsnprintf SPECIAL %#<foo> (was: Re: [PATCH v2 0/4] iio: Drop use of %hhx and %hx format strings) Joe Perches
2021-06-03 19:25   ` Jonathan Cameron
2021-06-03 19:34     ` Joe Perches
2021-06-04  8:27       ` Jonathan Cameron
2021-06-09 13:09 ` [PATCH v2 0/4] iio: Drop use of %hhx and %hx format strings Jonathan Cameron
2021-06-09 17:32   ` Jonathan Cameron

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