CONFIG_CPU_NEED_TLBSYNC is not available for thedefaultarchitecture x86.
Result is shown for architecture csky

CONFIG_CPU_NEED_TLBSYNC (not configurable)

configname: CONFIG_CPU_NEED_TLBSYNC

Linux Kernel Configuration
└─>CPU_NEED_TLBSYNC
In linux kernel since version 4.2 (release Date: 2015-08-30)