mem_to_shadow
kasan_populate_early_shadow(mem_to_shadow((void *)VMALLOC_START),
mem_to_shadow((void *)KFENCE_AREA_END));
kasan_map_populate((unsigned long)mem_to_shadow(start),
(unsigned long)mem_to_shadow(end), NUMA_NO_NODE);
kasan_map_populate((unsigned long)mem_to_shadow((void *)MODULES_VADDR),
(unsigned long)mem_to_shadow((void *)MODULES_END), NUMA_NO_NODE);
return mem_to_shadow(addr);