main.c

static void __init do_initcall_level(int level)
{
	extern const struct kernel_param __start___param[], __stop___param[];
	initcall_t *fn;

	strcpy(static_command_line, saved_command_line);
	parse_args(initcall_level_names[level],
		   static_command_line, __start___param,
		   __stop___param - __start___param,
		   level, level,
		   repair_env_string);

	for (fn = initcall_levels[level]; fn < initcall_levels[level+1]; fn++)
		do_one_initcall(*fn);
}