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| author | Jiri Slaby <jslaby@suse.cz> | 2013-01-03 15:53:01 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-15 22:17:28 -0800 |
| commit | 227434f8986c3827a1faedd1feb437acd6285315 (patch) | |
| tree | e96f6c6a800b81d096be73c1b7943c7aa24aa632 /arch | |
| parent | ea28fd56fcde69af768135e428093f94c5ca6a88 (diff) | |
| download | linux-227434f8986c3827a1faedd1feb437acd6285315.tar.gz linux-227434f8986c3827a1faedd1feb437acd6285315.tar.bz2 linux-227434f8986c3827a1faedd1feb437acd6285315.zip | |
TTY: switch tty_buffer_request_room to tty_port
Now, we start converting tty buffer functions to actually use
tty_port. This will allow us to get rid of the need of tty pointer in
many call sites. Only tty_port will be needed and hence no more
tty_port_tty_get calls in those paths.
Here we start with tty_buffer_request_room.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mn10300/kernel/mn10300-serial.c | 5 | ||||
| -rw-r--r-- | arch/um/drivers/chan_kern.c | 3 |
2 files changed, 5 insertions, 3 deletions
diff --git a/arch/mn10300/kernel/mn10300-serial.c b/arch/mn10300/kernel/mn10300-serial.c index 81d5cb9b6569..9b2232a78ff9 100644 --- a/arch/mn10300/kernel/mn10300-serial.c +++ b/arch/mn10300/kernel/mn10300-serial.c @@ -524,7 +524,8 @@ static int mask_test_and_clear(volatile u8 *ptr, u8 mask) static void mn10300_serial_receive_interrupt(struct mn10300_serial_port *port) { struct uart_icount *icount = &port->uart.icount; - struct tty_struct *tty = port->uart.state->port.tty; + struct tty_port *port = &port->uart.state->port; + struct tty_struct *tty = port->tty; unsigned ix; int count; u8 st, ch, push, status, overrun; @@ -534,7 +535,7 @@ static void mn10300_serial_receive_interrupt(struct mn10300_serial_port *port) push = 0; count = CIRC_CNT(port->rx_inp, port->rx_outp, MNSC_BUFFER_SIZE); - count = tty_buffer_request_room(tty, count); + count = tty_buffer_request_room(port, count); if (count == 0) { if (!tty->low_latency) tty_flip_buffer_push(tty); diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c index e9a0abc6a32f..4ff2503a1bb8 100644 --- a/arch/um/drivers/chan_kern.c +++ b/arch/um/drivers/chan_kern.c @@ -554,6 +554,7 @@ int parse_chan_pair(char *str, struct line *line, int device, void chan_interrupt(struct line *line, struct tty_struct *tty, int irq) { + struct tty_port *port = &line->port; struct chan *chan = line->chan_in; int err; char c; @@ -562,7 +563,7 @@ void chan_interrupt(struct line *line, struct tty_struct *tty, int irq) goto out; do { - if (tty && !tty_buffer_request_room(tty, 1)) { + if (!tty_buffer_request_room(port, 1)) { schedule_delayed_work(&line->task, 1); goto out; } |