static int ssl_config(char *str)
 {
-       return line_config(serial_lines,
-                          sizeof(serial_lines)/sizeof(serial_lines[0]), str);
+       return line_config(serial_lines, ARRAY_SIZE(serial_lines), str);
 }
 
 static int ssl_get_config(char *dev, char *str, int size, char **error_out)
 {
-       return line_get_config(dev, serial_lines,
-                              sizeof(serial_lines)/sizeof(serial_lines[0]),
-                              str, size, error_out);
+       return line_get_config(dev, serial_lines, ARRAY_SIZE(serial_lines), str,
+                              size, error_out);
 }
 
 static int ssl_remove(int n)
 {
-       return line_remove(serial_lines,
-                          sizeof(serial_lines)/sizeof(serial_lines[0]), n);
+       return line_remove(serial_lines, ARRAY_SIZE(serial_lines), n);
 }
 
 int ssl_open(struct tty_struct *tty, struct file *filp)
                                         serial_lines,
                                         ARRAY_SIZE(serial_lines));
 
-       lines_init(serial_lines, sizeof(serial_lines)/sizeof(serial_lines[0]));
+       lines_init(serial_lines, ARRAY_SIZE(serial_lines));
 
        new_title = add_xterm_umid(opts.xterm_title);
        if (new_title != NULL)
 {
        if (!ssl_init_done)
                return;
-       close_lines(serial_lines,
-                   sizeof(serial_lines)/sizeof(serial_lines[0]));
+       close_lines(serial_lines, ARRAY_SIZE(serial_lines));
 }
 __uml_exitcall(ssl_exit);
 
 static int ssl_chan_setup(char *str)
 {
-       return line_setup(serial_lines,
-                         sizeof(serial_lines)/sizeof(serial_lines[0]),
-                         str, 1);
+       return line_setup(serial_lines, ARRAY_SIZE(serial_lines), str, 1);
 }
 
 __setup("ssl", ssl_chan_setup);
 
 
 static int con_config(char *str)
 {
-       return line_config(vts, sizeof(vts)/sizeof(vts[0]), str);
+       return line_config(vts, ARRAY_SIZE(vts), str);
 }
 
 static int con_get_config(char *dev, char *str, int size, char **error_out)
 {
-       return line_get_config(dev, vts, sizeof(vts)/sizeof(vts[0]), str,
-                              size, error_out);
+       return line_get_config(dev, vts, ARRAY_SIZE(vts), str, size, error_out);
 }
 
 static int con_remove(int n)
 {
-       return line_remove(vts, sizeof(vts)/sizeof(vts[0]), n);
+       return line_remove(vts, ARRAY_SIZE(vts), n);
 }
 
 static int con_open(struct tty_struct *tty, struct file *filp)
                return -1;
        printk(KERN_INFO "Initialized stdio console driver\n");
 
-       lines_init(vts, sizeof(vts)/sizeof(vts[0]));
+       lines_init(vts, ARRAY_SIZE(vts));
 
        new_title = add_xterm_umid(opts.xterm_title);
        if(new_title != NULL)
 {
        if (!con_init_done)
                return;
-       close_lines(vts, sizeof(vts)/sizeof(vts[0]));
+       close_lines(vts, ARRAY_SIZE(vts));
 }
 __uml_exitcall(console_exit);
 
 static int console_chan_setup(char *str)
 {
-       return line_setup(vts, sizeof(vts)/sizeof(vts[0]), str, 1);
+       return line_setup(vts, ARRAY_SIZE(vts), str, 1);
 }
 __setup("con", console_chan_setup);
 __channel_help(console_chan_setup, "con");