Commit cd256b06 authored by Jiri Slaby's avatar Jiri Slaby Committed by Greg Kroah-Hartman
Browse files

tty/serial: make port of serial8250_register_8250_port const 



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: default avatarJiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210519072153.3859-2-jslaby@suse.cz


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b8be5db5

drivers/tty/serial/8250/8250_core.c

+2 −2
Original line number Diff line number Diff line
@@ -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;

include/linux/serial_8250.h

+1 −1
Original line number Diff line number Diff line
@@ -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);