Commit 9d5e9fdf turned the code to use adis library, so it depends on adis lib. But it forgot to select it at Kconfig file. Thus if adis is not enabled, it will produce following build errros(catched by Fengguang's 0-DAY kernel build testing system): ERROR: "adis_initial_startup" [drivers/staging/iio/gyro/adis16260.ko] undefined! ERROR: "adis_init" [drivers/staging/iio/gyro/adis16260.ko] undefined! ERROR: "adis_write_reg" [drivers/staging/iio/gyro/adis16260.ko] undefined! ERROR: "adis_read_reg" [drivers/staging/iio/gyro/adis16260.ko] undefined! ERROR: "adis_single_conversion" [drivers/staging/iio/gyro/adis16260.ko] undefined! Selecting IIO_ADIS_LIB at Kconfig file fixes this issue. Reported-by: Fengguang Wu <fengguang.wu@xxxxxxxxx> Cc: Lars-Peter Clausen <lars@xxxxxxxxxx> Cc: Jonathan Cameron <jic23@xxxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Yuanhan Liu <yuanhan.liu@xxxxxxxxxxxxxxx> --- drivers/staging/iio/gyro/Kconfig | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/staging/iio/gyro/Kconfig b/drivers/staging/iio/gyro/Kconfig index ea295b2..476207a 100644 --- a/drivers/staging/iio/gyro/Kconfig +++ b/drivers/staging/iio/gyro/Kconfig @@ -27,6 +27,7 @@ config ADIS16130 config ADIS16260 tristate "Analog Devices ADIS16260 Digital Gyroscope Sensor SPI driver" depends on SPI + select IIO_ADIS_LIB select IIO_TRIGGER if IIO_BUFFER select IIO_SW_RING if IIO_BUFFER help -- 1.7.7.6 -- 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