some files are not compiling while building 2.6.30 android kernel.

Hi All,

I am trying to build the 2.6.30 android kernel using
omap3_beagle_android_defconfig configuration file. but i am not able
to build the switch_class.o object file in /drivers/switch/ folder. I
can see CONFIG_SWITCH flag enabled in configuration file.

can anybody help me resolving this issue.