On 03/23/15 01:34, Stephen Rothwell wrote: > Hi all, > > Changes since 20150320: > on x86_64: ../sound/soc/codecs/rt5645.c:2858:1: warning: data definition has no type or storage class [enabled by default] module_i2c_driver(rt5645_i2c_driver); ^ ../sound/soc/codecs/rt5645.c:2858:1: error: type defaults to 'int' in declaration of 'module_i2c_driver' [-Werror=implicit-int] ../sound/soc/codecs/rt5645.c:2858:1: warning: parameter names (without types) in function declaration [enabled by default] ../sound/soc/codecs/rt5645.c:2849:26: warning: 'rt5645_i2c_driver' defined but not used [-Wunused-variable] static struct i2c_driver rt5645_i2c_driver = { ^ when CONFIG_I2C is not enabled. Full randconfig file is attached. -- ~Randy