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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>
This commit is contained in:
Fabian Frederick 2014-10-05 19:19:49 +02:00 коммит произвёл Greg Kroah-Hartman
Родитель 6f414130e8
Коммит f9c1b28e89
1 изменённых файлов: 20 добавлений и 10 удалений
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30
drivers/tty/serial/ar933x_uart.c
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@ -119,7 +119,8 @@ static inline void ar933x_uart_putc(struct ar933x_uart_port *up, int ch)
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_set_mctrl(struct uart_port *port, unsigned int mctrl)
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_stop_rx(struct uart_port *port)
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 @@ static void ar933x_uart_set_termios(struct uart_port *port,
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 irqreturn_t ar933x_uart_interrupt(int irq, void *dev_id)
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 int ar933x_uart_startup(struct uart_port *port)
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 void ar933x_uart_config_port(struct uart_port *port, int flags)
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_wait_xmitr(struct ar933x_uart_port *up)
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);