Re: [PATCH] iio: accel: adxl313: add missing buffer selections in Kconfig

["Nuno Sá" <nuno.sa@analog.com>]

On Tue, Oct 06, 2026 at 07:08:58PM -0500, Alexis Bouzigues via B4 Relay wrote:
> From: Alexis Bouzigues <BouziguesAlexis@JohnDeere.com>
> 
> The FIFO support added to the ADXL313 core uses
> devm_iio_kfifo_buffer_setup() and iio_push_to_buffers(), but its Kconfig
> entry does not select the required buffer support. Enabling either
> frontend without IIO_BUFFER or IIO_KFIFO_BUF causes undefined references
> to devm_iio_kfifo_buffer_setup_ext() and iio_push_to_buffers().
> 
> Select IIO_BUFFER and IIO_KFIFO_BUF from the shared ADXL313 core symbol
> so both the I2C and SPI frontends have the required dependencies.
> 
> Fixes: ff8093fa6ba4 ("iio: accel: adxl313: add buffered FIFO watermark with interrupt handling")
> Cc: stable@vger.kernel.org
> Assisted-by: LLM
> Signed-off-by: Alexis Bouzigues <BouziguesAlexis@JohnDeere.com>
> ---
> Add the buffer selections required by the ADXL313 FIFO support.
> The shared core symbol covers both I2C and SPI frontends.
> ---

Reviewed-by: Nuno Sá <nuno.sa@analog.com>

>  drivers/iio/accel/Kconfig | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
> index 4094299e2ed8..7b5c1ce66e95 100644
> --- a/drivers/iio/accel/Kconfig
> +++ b/drivers/iio/accel/Kconfig
> @@ -32,6 +32,8 @@ config ADIS16209
>  
>  config ADXL313
>  	tristate
> +	select IIO_BUFFER
> +	select IIO_KFIFO_BUF
>  
>  config ADXL313_I2C
>  	tristate "Analog Devices ADXL313 3-Axis Digital Accelerometer I2C Driver"
> 
> ---
> base-commit: 69f80fef3153299d9c72c53d1d71eef6354b6926
> change-id: 20261006-fix-adxl313-buffer-deps-review-73bb575e1e39
> 
> Best regards,
> -- 
> Alexis Bouzigues <BouziguesAlexis@JohnDeere.com>
> 
>