linux-kernel - Re: [PATCH 1/8] iio: accel: adxl313: simplify with spi_get_device_match

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Date: Fri, 7 Jun 2024 11:18:54 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Nuno Sá <noname.nuno@...il.com>,
 Lucas Stankus <lucas.p.stankus@...il.com>,
 Lars-Peter Clausen <lars@...afoo.de>,
 Michael Hennerich <Michael.Hennerich@...log.com>,
 Jonathan Cameron <jic23@...nel.org>, Puranjay Mohan <puranjay@...nel.org>,
 Ramona Bolboaca <ramona.bolboaca@...log.com>,
 Oleksij Rempel <o.rempel@...gutronix.de>, kernel@...gutronix.de,
 Cosmin Tanislav <cosmin.tanislav@...log.com>,
 Marius Cristea <marius.cristea@...rochip.com>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/8] iio: accel: adxl313: simplify with
 spi_get_device_match_data()

On 07/06/2024 10:57, Nuno Sá wrote:
> On Thu, 2024-06-06 at 16:26 +0200, Krzysztof Kozlowski wrote:
>> Use spi_get_device_match_data() helper to simplify a bit the driver.
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
>> ---
>>  drivers/iio/accel/adxl313_spi.c | 8 +-------
>>  1 file changed, 1 insertion(+), 7 deletions(-)
>>
>> diff --git a/drivers/iio/accel/adxl313_spi.c b/drivers/iio/accel/adxl313_spi.c
>> index b7cc15678a2b..6f8d73f6e5a9 100644
>> --- a/drivers/iio/accel/adxl313_spi.c
>> +++ b/drivers/iio/accel/adxl313_spi.c
>> @@ -72,13 +72,7 @@ static int adxl313_spi_probe(struct spi_device *spi)
>>  	if (ret)
>>  		return ret;
>>  
>> -	/*
>> -	 * Retrieves device specific data as a pointer to a
>> -	 * adxl313_chip_info structure
>> -	 */
>> -	chip_data = device_get_match_data(&spi->dev);
>> -	if (!chip_data)
>> -		chip_data = (const struct adxl313_chip_info
>> *)spi_get_device_id(spi)->driver_data;
>> +	chip_data = spi_get_device_match_data(spi);
>>  
> 
> I understand you're sticking with the original code but since you're doing this,
> could we maybe add proper error checking for the call? Maybe Jonathan can even
> tweak that while applying...
> 
> (same comment for patch 3)

I consider that a separate patch/work, because it would have functional
impact.

Best regards,
Krzysztof