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-rw-r--r--drivers/tty/serial/serial_core.c16
-rw-r--r--include/linux/serial_core.h3
2 files changed, 11 insertions, 8 deletions
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 2793b1cf2d24..b5beb215f062 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -3027,26 +3027,28 @@ out:
/*
* Are the two ports equivalent?
*/
-int uart_match_port(struct uart_port *port1, struct uart_port *port2)
+bool uart_match_port(const struct uart_port *port1,
+ const struct uart_port *port2)
{
if (port1->iotype != port2->iotype)
- return 0;
+ return false;
switch (port1->iotype) {
case UPIO_PORT:
- return (port1->iobase == port2->iobase);
+ return port1->iobase == port2->iobase;
case UPIO_HUB6:
- return (port1->iobase == port2->iobase) &&
- (port1->hub6 == port2->hub6);
+ return port1->iobase == port2->iobase &&
+ port1->hub6 == port2->hub6;
case UPIO_MEM:
case UPIO_MEM16:
case UPIO_MEM32:
case UPIO_MEM32BE:
case UPIO_AU:
case UPIO_TSI:
- return (port1->mapbase == port2->mapbase);
+ return port1->mapbase == port2->mapbase;
}
- return 0;
+
+ return false;
}
EXPORT_SYMBOL(uart_match_port);
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 7445c8fd88c0..52d7fb92a69d 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -408,7 +408,8 @@ int uart_register_driver(struct uart_driver *uart);
void uart_unregister_driver(struct uart_driver *uart);
int uart_add_one_port(struct uart_driver *reg, struct uart_port *port);
int uart_remove_one_port(struct uart_driver *reg, struct uart_port *port);
-int uart_match_port(struct uart_port *port1, struct uart_port *port2);
+bool uart_match_port(const struct uart_port *port1,
+ const struct uart_port *port2);
/*
* Power Management