编译内核模块No rule to make target `kernel/bounds.c

#include <linux/module.h> /* Needed by all modules */
#include <linux/kernel.h> /* Needed for KERN_INFO */

int init_module(void)
{
 printk(KERN_INFO "Hello world 1.\n");

 /*
 * A non 0 return means init_module failed; module can't be loaded.
 */
 return 0;
}

void cleanup_module(void)
{
 printk(KERN_INFO "Goodbye world 1.\n");
}