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authorJiri Slaby <jslaby@suse.cz>2013-03-07 13:12:34 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-19 00:24:30 +0100
commitee7970690568b0c875467f475d9c957ec0d9e099 (patch)
treecc24352913013c5e574d055d3c52a8f778150194 /drivers/tty/serial/crisv10.c
parentTTY: serial/msm_serial_hs, remove unused tty (diff)
downloadlinux-ee7970690568b0c875467f475d9c957ec0d9e099.tar.xz
linux-ee7970690568b0c875467f475d9c957ec0d9e099.zip
TTY: cleanup tty->hw_stopped uses
tty->hw_stopped is set only by drivers to remember HW state. If it is never set to 1 in a particular driver, there is no need to check it in the driver at all. Remove such checks. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/crisv10.c')
-rw-r--r--drivers/tty/serial/crisv10.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/drivers/tty/serial/crisv10.c b/drivers/tty/serial/crisv10.c
index 5f37c31e32bc..50f56f39d436 100644
--- a/drivers/tty/serial/crisv10.c
+++ b/drivers/tty/serial/crisv10.c
@@ -2534,8 +2534,7 @@ static void handle_ser_tx_interrupt(struct e100_serial *info)
}
/* Normal char-by-char interrupt */
if (info->xmit.head == info->xmit.tail
- || info->port.tty->stopped
- || info->port.tty->hw_stopped) {
+ || info->port.tty->stopped) {
DFLOW(DEBUG_LOG(info->line, "tx_int: stopped %i\n",
info->port.tty->stopped));
e100_disable_serial_tx_ready_irq(info);
@@ -3098,7 +3097,6 @@ rs_flush_chars(struct tty_struct *tty)
if (info->tr_running ||
info->xmit.head == info->xmit.tail ||
tty->stopped ||
- tty->hw_stopped ||
!info->xmit.buf)
return;
@@ -3176,7 +3174,6 @@ static int rs_raw_write(struct tty_struct *tty,
if (info->xmit.head != info->xmit.tail &&
!tty->stopped &&
- !tty->hw_stopped &&
!info->tr_running) {
start_transmit(info);
}
@@ -3733,10 +3730,8 @@ rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
/* Handle turning off CRTSCTS */
if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios.c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
+ !(tty->termios.c_cflag & CRTSCTS))
rs_start(tty);
- }
}
@@ -4256,9 +4251,6 @@ static void seq_line_info(struct seq_file *m, struct e100_serial *info)
if (info->port.tty->stopped)
seq_printf(m, " stopped:%i",
(int)info->port.tty->stopped);
- if (info->port.tty->hw_stopped)
- seq_printf(m, " hw_stopped:%i",
- (int)info->port.tty->hw_stopped);
}
{