On Tue, Dec 06, 2011 at 08:43:24PM +0800, Axel Lin wrote:

I got below build error if CONFIG_I2C=m && CONFIG_SND_SOC=y.

LD vmlinux sound/built-in.o: In function `snd_soc_codec_set_cache_io': last.c:(.text+0x2a0a8): undefined reference to `regmap_init_i2c' make: *** [vmlinux] Error 1

( I test the build on linux-next 20111206 )

If someone wants to do the Kconfig or whatever to handle that they're welcome to but it's frankly unrealistic so...