CONFIG_GENERIC_LIB_MULDI3 (not configurable)

modulename: muldi3.ko

configname: CONFIG_GENERIC_LIB_MULDI3

Linux Kernel Configuration
└─>GENERIC_LIB_MULDI3
In linux kernel since version 4.2 (release Date: 2015-08-30)  
source code:
lib/muldi3.c