CONFIG_SAMSUNG_WAKEMASK is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_SAMSUNG_WAKEMASK (not configurable)

modulename: wakeup-mask.ko

configname: CONFIG_SAMSUNG_WAKEMASK

Linux Kernel Configuration
└─>Samsung Common options
└─>SAMSUNG_WAKEMASK
In linux kernel since version 2.6.35 (release Date: 2010-08-01)  
Compile support for wakeup-mask controls found on the S3C6400
and above. This code allows a set of interrupt to wakeup-mask
mappings. See <plat/wakeup-mask.h>

source code: