From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> The dln2-adc driver uses interface(s) that are controlled by the IIO_TRIGGERED_BUFFER Kconfig symbol, so the driver needs to select that symbol to prevent the build error. drivers/iio/adc/dln2-adc.o: In function `dln2_adc_probe': dln2-adc.c:(.text+0x528): undefined reference to `devm_iio_triggered_buffer_setup' Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Reported-by: kbuild test robot <fengguang.wu@xxxxxxxxx> Cc: Jonathan Cameron <jic23@xxxxxxxxxx> Cc: linux-iio@xxxxxxxxxxxxxxx Cc: Jack Andersen <jackoalan@xxxxxxxxx> --- drivers/iio/adc/Kconfig | 2 ++ 1 file changed, 2 insertions(+) --- lnx-414-rc3.orig/drivers/iio/adc/Kconfig +++ lnx-414-rc3/drivers/iio/adc/Kconfig @@ -243,6 +243,8 @@ config DA9150_GPADC config DLN2_ADC tristate "Diolan DLN-2 ADC driver support" depends on MFD_DLN2 + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER help Say yes here to build support for Diolan DLN-2 ADC. -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html