CONFIG_HAVE_COPY_THREAD_TLS (not configurable)

configname: CONFIG_HAVE_COPY_THREAD_TLS

Linux Kernel Configuration
└─>HAVE_COPY_THREAD_TLS
In linux kernel since version 4.1 (release Date: 2015-06-21)  
Architecture provides copy_thread_tls to accept tls argument via
normal C parameter passing, rather than extracting the syscall
argument from pt_regs.