tty/serial: make port of serial8250_register_8250_port const
authorJiri Slaby <jslaby@suse.cz>
Wed, 19 May 2021 07:21:51 +0000 (09:21 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 20 May 2021 14:59:14 +0000 (16:59 +0200)
After the previous patch, we can make port passed to
serial8250_find_match_or_unused const. And then we can make const also
port of serial8250_register_8250_port.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210519072153.3859-2-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/8250/8250_core.c
include/linux/serial_8250.h

index 1082e76..1ce193d 100644 (file)
@@ -906,7 +906,7 @@ static struct platform_device *serial8250_isa_devs;
  */
 static DEFINE_MUTEX(serial_mutex);
 
-static struct uart_8250_port *serial8250_find_match_or_unused(struct uart_port *port)
+static struct uart_8250_port *serial8250_find_match_or_unused(const struct uart_port *port)
 {
        int i;
 
@@ -971,7 +971,7 @@ static void serial_8250_overrun_backoff_work(struct work_struct *work)
  *
  *     On success the port is ready to use and the line number is returned.
  */
-int serial8250_register_8250_port(struct uart_8250_port *up)
+int serial8250_register_8250_port(const struct uart_8250_port *up)
 {
        struct uart_8250_port *uart;
        int ret = -ENOSPC;
index 9e65505..5db211f 100644 (file)
@@ -146,7 +146,7 @@ static inline struct uart_8250_port *up_to_u8250p(struct uart_port *up)
        return container_of(up, struct uart_8250_port, port);
 }
 
-int serial8250_register_8250_port(struct uart_8250_port *);
+int serial8250_register_8250_port(const struct uart_8250_port *);
 void serial8250_unregister_port(int line);
 void serial8250_suspend_port(int line);
 void serial8250_resume_port(int line);