CONFIG_MACH_SMDKV310 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

SMDKV310

modulename: mach-smdkv310.ko

configname: CONFIG_MACH_SMDKV310

Linux Kernel Configuration
└─>EXYNOS4 Machines
└─>SMDKV310
In linux kernel since version 2.6.36 (release Date: 2010-10-20)  
Machine support for Samsung SMDKV310

source code:
arch/arm/mach-exynos4/mach-smdkv310.c