set_root_pointer 123 arch/x86/include/asm/acpi.h x86_init.acpi.set_root_pointer(addr); set_root_pointer 144 arch/x86/include/asm/x86_init.h void (*set_root_pointer)(u64 addr); set_root_pointer 99 arch/x86/kernel/x86_init.c .set_root_pointer = x86_default_set_root_pointer,