linux-kernel - Re: [PATCH v2] iio: bme680

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Message-ID: <20210508165119.69ca980c@jic23-huawei>
Date:   Sat, 8 May 2021 16:51:19 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel test robot <lkp@...el.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Hans de Goede <hdegoede@...hat.com>
Subject: Re: [PATCH v2] iio: bme680_i2c: Remove ACPI support

On Wed,  5 May 2021 20:43:32 -0700
Guenter Roeck <linux@...ck-us.net> wrote:

> With CONFIG_ACPI=n and -Werror, 0-day reports:
> 
> drivers/iio/chemical/bme680_i2c.c:46:36: error:
> 	'bme680_acpi_match' defined but not used
> 
> Apparently BME0680 is not a valid ACPI ID. Remove it and with it
> ACPI support from the bme680_i2c driver.
> 
> Reported-by: kernel test robot <lkp@...el.com>
> Cc: Andy Shevchenko <andy.shevchenko@...il.com>
> Cc: Hans de Goede <hdegoede@...hat.com>
> Signed-off-by: Guenter Roeck <linux@...ck-us.net>
Message tweaked to reflect PRP0001 route which should work just fine
with ACPI and this driver.

Jonathan

> ---
> v2: Instead of making bme680_acpi_match conditional,
>     remove ACPI support entirely since the ACPI ID is
>     not valid.
> 
>  drivers/iio/chemical/bme680_i2c.c | 8 --------
>  1 file changed, 8 deletions(-)
> 
> diff --git a/drivers/iio/chemical/bme680_i2c.c b/drivers/iio/chemical/bme680_i2c.c
> index 29c0dfa4702b..74cf89c82c0a 100644
> --- a/drivers/iio/chemical/bme680_i2c.c
> +++ b/drivers/iio/chemical/bme680_i2c.c
> @@ -11,7 +11,6 @@
>   * Note: SDO pin cannot be left floating otherwise I2C address
>   *	 will be undefined.
>   */
> -#include <linux/acpi.h>
>  #include <linux/i2c.h>
>  #include <linux/module.h>
>  #include <linux/regmap.h>
> @@ -42,12 +41,6 @@ static const struct i2c_device_id bme680_i2c_id[] = {
>  };
>  MODULE_DEVICE_TABLE(i2c, bme680_i2c_id);
>  
> -static const struct acpi_device_id bme680_acpi_match[] = {
> -	{"BME0680", 0},
> -	{},
> -};
> -MODULE_DEVICE_TABLE(acpi, bme680_acpi_match);
> -
>  static const struct of_device_id bme680_of_i2c_match[] = {
>  	{ .compatible = "bosch,bme680", },
>  	{},
> @@ -57,7 +50,6 @@ MODULE_DEVICE_TABLE(of, bme680_of_i2c_match);
>  static struct i2c_driver bme680_i2c_driver = {
>  	.driver = {
>  		.name			= "bme680_i2c",
> -		.acpi_match_table       = ACPI_PTR(bme680_acpi_match),
>  		.of_match_table		= bme680_of_i2c_match,
>  	},
>  	.probe = bme680_i2c_probe,