diff options
| -rw-r--r-- | drivers/s390/char/con3215.c | 12 | ||||
| -rw-r--r-- | drivers/tty/serial/serial_core.c | 8 | ||||
| -rw-r--r-- | include/linux/tty.h | 13 |
3 files changed, 23 insertions, 10 deletions
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index e7e078b3c7e6..114fe2845270 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -289,7 +289,7 @@ static void raw3215_timeout(unsigned long __data) spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); raw->flags &= ~RAW3215_TIMER_RUNS; - if (!(raw->port.flags & ASYNC_SUSPENDED)) { + if (!tty_port_suspended(&raw->port)) { raw3215_mk_write_req(raw); raw3215_start_io(raw); if ((raw->queued_read || raw->queued_write) && @@ -312,7 +312,7 @@ static void raw3215_timeout(unsigned long __data) static inline void raw3215_try_io(struct raw3215_info *raw) { if (!(raw->port.flags & ASYNC_INITIALIZED) || - (raw->port.flags & ASYNC_SUSPENDED)) + tty_port_suspended(&raw->port)) return; if (raw->queued_read != NULL) raw3215_start_io(raw); @@ -494,7 +494,7 @@ static void raw3215_make_room(struct raw3215_info *raw, unsigned int length) /* While console is frozen for suspend we have no other * choice but to drop message from the buffer to make * room for even more messages. */ - if (raw->port.flags & ASYNC_SUSPENDED) { + if (tty_port_suspended(&raw->port)) { raw3215_drop_line(raw); continue; } @@ -773,7 +773,7 @@ static int raw3215_pm_stop(struct ccw_device *cdev) raw = dev_get_drvdata(&cdev->dev); spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); raw3215_make_room(raw, RAW3215_BUFFER_SIZE); - raw->port.flags |= ASYNC_SUSPENDED; + tty_port_set_suspended(&raw->port, 1); spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); return 0; } @@ -786,7 +786,7 @@ static int raw3215_pm_start(struct ccw_device *cdev) /* Allow I/O again and flush output buffer. */ raw = dev_get_drvdata(&cdev->dev); spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); - raw->port.flags &= ~ASYNC_SUSPENDED; + tty_port_set_suspended(&raw->port, 0); raw->flags |= RAW3215_FLUSHING; raw3215_try_io(raw); raw->flags &= ~RAW3215_FLUSHING; @@ -859,7 +859,7 @@ static void con3215_flush(void) unsigned long flags; raw = raw3215[0]; /* console 3215 is the first one */ - if (raw->port.flags & ASYNC_SUSPENDED) + if (tty_port_suspended(&raw->port)) /* The console is still frozen for suspend. */ if (ccw_device_force_console(raw->cdev)) /* Forcing didn't work, no panic message .. */ diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 2471380fb92e..933606777f45 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -249,7 +249,7 @@ static void uart_shutdown(struct tty_struct *tty, struct uart_state *state) * a DCD drop (hangup) at just the right time. Clear suspended bit so * we don't try to resume a port that has been shutdown. */ - clear_bit(ASYNCB_SUSPENDED, &port->flags); + tty_port_set_suspended(port, 0); /* * Free the transmit buffer page. @@ -2007,7 +2007,7 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *uport) const struct uart_ops *ops = uport->ops; int tries; - set_bit(ASYNCB_SUSPENDED, &port->flags); + tty_port_set_suspended(port, 1); clear_bit(ASYNCB_INITIALIZED, &port->flags); spin_lock_irq(&uport->lock); @@ -2088,7 +2088,7 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *uport) console_start(uport->cons); } - if (port->flags & ASYNC_SUSPENDED) { + if (tty_port_suspended(port)) { const struct uart_ops *ops = uport->ops; int ret; @@ -2118,7 +2118,7 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *uport) } } - clear_bit(ASYNCB_SUSPENDED, &port->flags); + tty_port_set_suspended(port, 0); } mutex_unlock(&port->mutex); diff --git a/include/linux/tty.h b/include/linux/tty.h index 4254dfb12fb1..7ac5add66c00 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -597,6 +597,19 @@ static inline void tty_port_set_check_carrier(struct tty_port *port, bool val) clear_bit(TTY_PORT_CHECK_CD, &port->iflags); } +static inline bool tty_port_suspended(struct tty_port *port) +{ + return test_bit(TTY_PORT_SUSPENDED, &port->iflags); +} + +static inline void tty_port_set_suspended(struct tty_port *port, bool val) +{ + if (val) + set_bit(TTY_PORT_SUSPENDED, &port->iflags); + else + clear_bit(TTY_PORT_SUSPENDED, &port->iflags); +} + extern struct tty_struct *tty_port_tty_get(struct tty_port *port); extern void tty_port_tty_set(struct tty_port *port, struct tty_struct *tty); extern int tty_port_carrier_raised(struct tty_port *port); |