diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2013-01-03 15:53:06 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-16 07:30:15 +0100 |
| commit | 2e124b4a390ca85325fae75764bef92f0547fa25 (patch) | |
| tree | 5519fbcdbe954e79b271ea6d31ac5a4dc754c4f5 /arch/ia64 | |
| parent | TTY: move low_latency to tty_port (diff) | |
| download | linux-2e124b4a390ca85325fae75764bef92f0547fa25.tar.xz linux-2e124b4a390ca85325fae75764bef92f0547fa25.zip | |
TTY: switch tty_flip_buffer_push
Now, we start converting tty buffer functions to actually use
tty_port. This will allow us to get rid of the need of tty in many
call sites. Only tty_port will needed and hence no more
tty_port_tty_get in those paths.
Now, the one where most of tty_port_tty_get gets removed:
tty_flip_buffer_push.
IOW we also closed all the races in drivers not using tty_port_tty_get
at all yet.
Also we move tty_flip_buffer_push declaration from include/linux/tty.h
to include/linux/tty_flip.h to all others while we are changing it
anyway.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/hp/sim/simserial.c | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c index 942022a5bc86..da2f319fb71d 100644 --- a/arch/ia64/hp/sim/simserial.c +++ b/arch/ia64/hp/sim/simserial.c @@ -53,9 +53,8 @@ struct tty_driver *hp_simserial_driver; static struct console *console; -static void receive_chars(struct tty_struct *tty) +static void receive_chars(struct tty_port *port) { - struct tty_port *port = tty->port; unsigned char ch; static unsigned char seen_esc = 0; @@ -85,7 +84,7 @@ static void receive_chars(struct tty_struct *tty) if (tty_insert_flip_char(port, ch, TTY_NORMAL) == 0) break; } - tty_flip_buffer_push(tty); + tty_flip_buffer_push(port); } /* @@ -94,18 +93,9 @@ static void receive_chars(struct tty_struct *tty) static irqreturn_t rs_interrupt_single(int irq, void *dev_id) { struct serial_state *info = dev_id; - struct tty_struct *tty = tty_port_tty_get(&info->port); - if (!tty) { - printk(KERN_INFO "%s: tty=0 problem\n", __func__); - return IRQ_NONE; - } - /* - * pretty simple in our case, because we only get interrupts - * on inbound traffic - */ - receive_chars(tty); - tty_kref_put(tty); + receive_chars(&info->port); + return IRQ_HANDLED; } |