static int probe_index = 0;
 
-int s3c24xx_serial_probe(struct device *_dev,
-                        struct s3c24xx_uart_info *info)
+static int s3c24xx_serial_probe(struct device *_dev,
+                               struct s3c24xx_uart_info *info)
 {
        struct s3c24xx_uart_port *ourport;
        struct platform_device *dev = to_platform_device(_dev);
        return ret;
 }
 
-int s3c24xx_serial_remove(struct device *_dev)
+static int s3c24xx_serial_remove(struct device *_dev)
 {
        struct uart_port *port = s3c24xx_dev_to_port(_dev);
 
 
 #ifdef CONFIG_PM
 
-int s3c24xx_serial_suspend(struct device *dev, pm_message_t state, u32 level)
+static int s3c24xx_serial_suspend(struct device *dev, pm_message_t state,
+                                 u32 level)
 {
        struct uart_port *port = s3c24xx_dev_to_port(dev);
 
        return 0;
 }
 
-int s3c24xx_serial_resume(struct device *dev, u32 level)
+static int s3c24xx_serial_resume(struct device *dev, u32 level)
 {
        struct uart_port *port = s3c24xx_dev_to_port(dev);
        struct s3c24xx_uart_port *ourport = to_ourport(port);
 #define s3c24xx_serial_resume  NULL
 #endif
 
-int s3c24xx_serial_init(struct device_driver *drv,
-                       struct s3c24xx_uart_info *info)
+static int s3c24xx_serial_init(struct device_driver *drv,
+                              struct s3c24xx_uart_info *info)
 {
        dbg("s3c24xx_serial_init(%p,%p)\n", drv, info);
        return driver_register(drv);