On 04/20/2016 09:17 PM, kbuild test robot wrote: > Hi, > > [auto build test ERROR on iio/togreg] > [also build test ERROR on v4.6-rc4 next-20160420] > [if your patch is applied to the wrong git tree, please drop us a note to > help improving the system] > > url: > https://github.com/0day-ci/linux/commits/Crestez-Dan-Leonard/iio-inv_mpu6050-Add-support-for-auxiliary-I2C-master/20160421-012042 > base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg > config: i386-randconfig-i1-201616 (attached as .config) > reproduce: > # save the attached .config to linux build tree > make ARCH=i386 > > All errors (new ones prefixed by >>): > > drivers/iio/imu/inv_mpu6050/inv_mpu_core.c: In function > 'inv_mpu_core_probe': >>> drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:966:11: error: implicit >>> declaration of function 'i2c_add_adapter' >>> [-Werror=implicit-function-declaration] > result = i2c_add_adapter(&st->aux_master_adapter); > ^ >>> drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:983:2: error: implicit >>> declaration of function 'i2c_del_adapter' >>> [-Werror=implicit-function-declaration] > i2c_del_adapter(&st->aux_master_adapter); > ^ > cc1: some warnings being treated as errors
This error happens if you disable CONFIG_I2C and only compile with SPI support. I will add a bunch of #ifdef CONFIG_I2C in the next version.
