tty: ar933x_uart: use container_of to resolve ar933x_uart_port from uart_port
Use container_of instead of casting first structure member.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/ar933x_uart.c b/drivers/tty/serial/ar933x_uart.c
index 0be1c45..2739361 100644
--- a/drivers/tty/serial/ar933x_uart.c
+++ b/drivers/tty/serial/ar933x_uart.c
@@ -119,7 +119,8 @@
static unsigned int ar933x_uart_tx_empty(struct uart_port *port)
{
- struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
+ struct ar933x_uart_port *up =
+ container_of(port, struct ar933x_uart_port, port);
unsigned long flags;
unsigned int rdata;
@@ -141,21 +142,24 @@
static void ar933x_uart_start_tx(struct uart_port *port)
{
- struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
+ struct ar933x_uart_port *up =
+ container_of(port, struct ar933x_uart_port, port);
ar933x_uart_start_tx_interrupt(up);
}
static void ar933x_uart_stop_tx(struct uart_port *port)
{
- struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
+ struct ar933x_uart_port *up =
+ container_of(port, struct ar933x_uart_port, port);
ar933x_uart_stop_tx_interrupt(up);
}
static void ar933x_uart_stop_rx(struct uart_port *port)
{
- struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
+ struct ar933x_uart_port *up =
+ container_of(port, struct ar933x_uart_port, port);
up->ier &= ~AR933X_UART_INT_RX_VALID;
ar933x_uart_write(up, AR933X_UART_INT_EN_REG, up->ier);
@@ -163,7 +167,8 @@
static void ar933x_uart_break_ctl(struct uart_port *port, int break_state)
{
- struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
+ struct ar933x_uart_port *up =
+ container_of(port, struct ar933x_uart_port, port);
unsigned long flags;
spin_lock_irqsave(&up->port.lock, flags);
@@ -231,7 +236,8 @@
struct ktermios *new,
struct ktermios *old)
{
- struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
+ struct ar933x_uart_port *up =
+ container_of(port, struct ar933x_uart_port, port);
unsigned int cs;
unsigned long flags;
unsigned int baud, scale, step;
@@ -404,7 +410,8 @@
static int ar933x_uart_startup(struct uart_port *port)
{
- struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
+ struct ar933x_uart_port *up =
+ container_of(port, struct ar933x_uart_port, port);
unsigned long flags;
int ret;
@@ -430,7 +437,8 @@
static void ar933x_uart_shutdown(struct uart_port *port)
{
- struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
+ struct ar933x_uart_port *up =
+ container_of(port, struct ar933x_uart_port, port);
/* Disable all interrupts */
up->ier = 0;
@@ -468,7 +476,8 @@
static int ar933x_uart_verify_port(struct uart_port *port,
struct serial_struct *ser)
{
- struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
+ struct ar933x_uart_port *up =
+ container_of(port, struct ar933x_uart_port, port);
if (ser->type != PORT_UNKNOWN &&
ser->type != PORT_AR933X)
@@ -521,7 +530,8 @@
static void ar933x_uart_console_putchar(struct uart_port *port, int ch)
{
- struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
+ struct ar933x_uart_port *up =
+ container_of(port, struct ar933x_uart_port, port);
ar933x_uart_wait_xmitr(up);
ar933x_uart_putc(up, ch);