kernelconfig_penguin
default or selected kernelversion does not have config value CONFIG_ATH6KL_ENABLE_HOST_DEBUG.
Result is shown for kernelversion 3.1.9

Host Debug support

configname: CONFIG_ATH6KL_ENABLE_HOST_DEBUG

Linux Kernel Configuration
└─> Device Drivers
└─> Staging drivers
└─> Host Debug support

Enables debug support in the driver