Other printk() macros


 #define err(fmt, arg...)
      printk(KERN_ERR "%s: " fmt "\n" , MY_NAME , ## arg)

 #define info(fmt, arg...)
      printk(KERN_INFO "%s: " fmt "\n" , MY_NAME , ## arg)

 #define warn(fmt, arg...)
      printk(KERN_WARNING "%s: " fmt "\n" , MY_NAME , ## arg)