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serial/8250: Remove obsolete handling of rs485 ioctls

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There is no more users for this functions. All the 8250 drivers are
using the rs485 handler on serial_core instead.

Reviewed-by: Alan Cox <alan@linux.intel.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@hitachi.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ricardo Ribalda Delgado 2014-11-06 09:22:53 +01:00 committed by Greg Kroah-Hartman
parent 41e69093fd
commit 039ec1f010
2 changed files with 0 additions and 42 deletions
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39
drivers/tty/serial/8250/8250_core.c
View file

@ -3005,42 +3005,6 @@ serial8250_verify_port(struct uart_port *port, struct serial_struct *ser)
return 0;
}
static int serial8250_ioctl(struct uart_port *port, unsigned int cmd,
unsigned long arg)
{
struct uart_8250_port *up =
container_of(port, struct uart_8250_port, port);
int ret;
struct serial_rs485 rs485_config;
if (!up->rs485_config)
return -ENOIOCTLCMD;
switch (cmd) {
case TIOCSRS485:
if (copy_from_user(&rs485_config, (void __user *)arg,
sizeof(rs485_config)))
return -EFAULT;
ret = up->rs485_config(up, &rs485_config);
if (ret)
return ret;
memcpy(&up->rs485, &rs485_config, sizeof(rs485_config));
return 0;
case TIOCGRS485:
if (copy_to_user((void __user *)arg, &up->rs485,
sizeof(up->rs485)))
return -EFAULT;
return 0;
default:
break;
}
return -ENOIOCTLCMD;
}
static const char *
serial8250_type(struct uart_port *port)
{
@ -3072,7 +3036,6 @@ static struct uart_ops serial8250_pops = {
.request_port = serial8250_request_port,
.config_port = serial8250_config_port,
.verify_port = serial8250_verify_port,
.ioctl = serial8250_ioctl,
#ifdef CONFIG_CONSOLE_POLL
.poll_get_char = serial8250_get_poll_char,
.poll_put_char = serial8250_put_poll_char,
@ -3615,8 +3578,6 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
uart->port.fifosize = up->port.fifosize;
uart->tx_loadsz = up->tx_loadsz;
uart->capabilities = up->capabilities;
uart->rs485_config = up->rs485_config;
uart->rs485 = up->rs485;
uart->port.throttle = up->port.throttle;
uart->port.unthrottle = up->port.unthrottle;
uart->port.rs485_config = up->port.rs485_config;

3
include/linux/serial_8250.h
View file

@ -97,13 +97,10 @@ struct uart_8250_port {
unsigned char msr_saved_flags;
struct uart_8250_dma *dma;
struct serial_rs485 rs485;
/* 8250 specific callbacks */
int (*dl_read)(struct uart_8250_port *);
void (*dl_write)(struct uart_8250_port *, int);
int (*rs485_config)(struct uart_8250_port *,
struct serial_rs485 *rs485);
};
static inline struct uart_8250_port *up_to_u8250p(struct uart_port *up)