diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2016-04-09 17:53:24 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-30 09:26:55 -0700 |
| commit | 80f02d5424301bf4df195d09b1a664f394435851 (patch) | |
| tree | 8bfff4fbf3685f767fa776dbd7ae58a63420acd3 /drivers/s390 | |
| parent | 2d68655d15bc99981394f7caa769a14b03cac131 (diff) | |
| download | linux-80f02d5424301bf4df195d09b1a664f394435851.tar.bz2 | |
tty: Replace ASYNC_SUSPENDED bit and update atomically
Replace ASYNC_SUSPENDED bit in the tty_port::flags field with
TTY_PORT_SUSPENDED bit in the tty_port::iflags field. Introduce helpers
tty_port_set_suspended() and tty_port_suspended() to abstract
atomic bit ops.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/char/con3215.c | 12 |
1 files changed, 6 insertions, 6 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 .. */ |