Use container_of instead of casting first structure member.
Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx>
---
drivers/tty/serial/sunzilog.c | 24 ++++++++++++++++--------
1 file changed, 16 insertions(+), 8 deletions(-)
diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c
index 02df394..844aae7 100644
--- a/drivers/tty/serial/sunzilog.c
+++ b/drivers/tty/serial/sunzilog.c
@@ -644,7 +644,8 @@ static unsigned int sunzilog_get_mctrl(struct uart_port *port)
/* The port lock is held and interrupts are disabled. */
static void sunzilog_set_mctrl(struct uart_port *port, unsigned int mctrl)
{
- struct uart_sunzilog_port *up = (struct uart_sunzilog_port *) port;
+ struct uart_sunzilog_port *up =
+ container_of(port, struct uart_sunzilog_port, port);
struct zilog_channel __iomem *channel = ZILOG_CHANNEL_FROM_PORT(port);
unsigned char set_bits, clear_bits;
@@ -668,7 +669,8 @@ static void sunzilog_set_mctrl(struct uart_port *port, unsigned int mctrl)
/* The port lock is held and interrupts are disabled. */
static void sunzilog_stop_tx(struct uart_port *port)
{
- struct uart_sunzilog_port *up = (struct uart_sunzilog_port *) port;
+ struct uart_sunzilog_port *up =
+ container_of(port, struct uart_sunzilog_port, port);
up->flags |= SUNZILOG_FLAG_TX_STOPPED;
}
@@ -676,7 +678,8 @@ static void sunzilog_stop_tx(struct uart_port *port)
/* The port lock is held and interrupts are disabled. */
static void sunzilog_start_tx(struct uart_port *port)
{
- struct uart_sunzilog_port *up = (struct uart_sunzilog_port *) port;
+ struct uart_sunzilog_port *up =
+ container_of(port, struct uart_sunzilog_port, port);
struct zilog_channel __iomem *channel = ZILOG_CHANNEL_FROM_PORT(port);
unsigned char status;
@@ -736,7 +739,8 @@ static void sunzilog_stop_rx(struct uart_port *port)
/* The port lock is held. */
static void sunzilog_enable_ms(struct uart_port *port)
{
- struct uart_sunzilog_port *up = (struct uart_sunzilog_port *) port;
+ struct uart_sunzilog_port *up =
+ container_of(port, struct uart_sunzilog_port, port);
struct zilog_channel __iomem *channel = ZILOG_CHANNEL_FROM_PORT(port);
unsigned char new_reg;
@@ -752,7 +756,8 @@ static void sunzilog_enable_ms(struct uart_port *port)
/* The port lock is not held. */
static void sunzilog_break_ctl(struct uart_port *port, int break_state)
{
- struct uart_sunzilog_port *up = (struct uart_sunzilog_port *) port;
+ struct uart_sunzilog_port *up =
+ container_of(port, struct uart_sunzilog_port, port);
struct zilog_channel __iomem *channel = ZILOG_CHANNEL_FROM_PORT(port);
unsigned char set_bits, clear_bits, new_reg;
unsigned long flags;
@@ -938,7 +943,8 @@ static void
sunzilog_set_termios(struct uart_port *port, struct ktermios *termios,
struct ktermios *old)
{
- struct uart_sunzilog_port *up = (struct uart_sunzilog_port *) port;
+ struct uart_sunzilog_port *up =
+ container_of(port, struct uart_sunzilog_port, port);
unsigned long flags;
int baud, brg;
@@ -998,7 +1004,8 @@ static int sunzilog_verify_port(struct uart_port *port, struct serial_struct *se
static int sunzilog_get_poll_char(struct uart_port *port)
{
unsigned char ch, r1;
- struct uart_sunzilog_port *up = (struct uart_sunzilog_port *) port;
+ struct uart_sunzilog_port *up =
+ container_of(port, struct uart_sunzilog_port, port);
struct zilog_channel __iomem *channel
= ZILOG_CHANNEL_FROM_PORT(&up->port);
@@ -1032,7 +1039,8 @@ static int sunzilog_get_poll_char(struct uart_port *port)
static void sunzilog_put_poll_char(struct uart_port *port,
unsigned char ch)
{
- struct uart_sunzilog_port *up = (struct uart_sunzilog_port *)port;
+ struct uart_sunzilog_port *up =
+ container_of(port, struct uart_sunzilog_port, port);
sunzilog_putchar(&up->port, ch);
}
--
1.9.1
--
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