diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2013-03-07 13:12:34 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-18 16:24:30 -0700 |
| commit | ee7970690568b0c875467f475d9c957ec0d9e099 (patch) | |
| tree | cc24352913013c5e574d055d3c52a8f778150194 /drivers/tty/rocket.c | |
| parent | 4d29994ddb4cc97e19a533834df2e0fdb1c1d8a8 (diff) | |
| download | linux-ee7970690568b0c875467f475d9c957ec0d9e099.tar.bz2 | |
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/rocket.c')
| -rw-r--r-- | drivers/tty/rocket.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c index bbffd7a431e9..f5abc2888821 100644 --- a/drivers/tty/rocket.c +++ b/drivers/tty/rocket.c @@ -449,7 +449,7 @@ static void rp_do_transmit(struct r_port *info) /* Loop sending data to FIFO until done or FIFO full */ while (1) { - if (tty->stopped || tty->hw_stopped) + if (tty->stopped) break; c = min(info->xmit_fifo_room, info->xmit_cnt); c = min(c, XMIT_BUF_SIZE - info->xmit_tail); @@ -1106,15 +1106,12 @@ static void rp_set_termios(struct tty_struct *tty, /* Handle transition away from B0 status */ if (!(old_termios->c_cflag & CBAUD) && (tty->termios.c_cflag & CBAUD)) { - if (!tty->hw_stopped || !(tty->termios.c_cflag & CRTSCTS)) - sSetRTS(cp); + sSetRTS(cp); sSetDTR(cp); } - if ((old_termios->c_cflag & CRTSCTS) && !(tty->termios.c_cflag & CRTSCTS)) { - tty->hw_stopped = 0; + if ((old_termios->c_cflag & CRTSCTS) && !(tty->termios.c_cflag & CRTSCTS)) rp_start(tty); - } } static int rp_break(struct tty_struct *tty, int break_state) @@ -1570,10 +1567,10 @@ static int rp_put_char(struct tty_struct *tty, unsigned char ch) spin_lock_irqsave(&info->slock, flags); cp = &info->channel; - if (!tty->stopped && !tty->hw_stopped && info->xmit_fifo_room == 0) + if (!tty->stopped && info->xmit_fifo_room == 0) info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp); - if (tty->stopped || tty->hw_stopped || info->xmit_fifo_room == 0 || info->xmit_cnt != 0) { + if (tty->stopped || info->xmit_fifo_room == 0 || info->xmit_cnt != 0) { info->xmit_buf[info->xmit_head++] = ch; info->xmit_head &= XMIT_BUF_SIZE - 1; info->xmit_cnt++; @@ -1614,14 +1611,14 @@ static int rp_write(struct tty_struct *tty, #endif cp = &info->channel; - if (!tty->stopped && !tty->hw_stopped && info->xmit_fifo_room < count) + if (!tty->stopped && info->xmit_fifo_room < count) info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp); /* * If the write queue for the port is empty, and there is FIFO space, stuff bytes * into FIFO. Use the write queue for temp storage. */ - if (!tty->stopped && !tty->hw_stopped && info->xmit_cnt == 0 && info->xmit_fifo_room > 0) { + if (!tty->stopped && info->xmit_cnt == 0 && info->xmit_fifo_room > 0) { c = min(count, info->xmit_fifo_room); b = buf; @@ -1669,7 +1666,7 @@ static int rp_write(struct tty_struct *tty, retval += c; } - if ((retval > 0) && !tty->stopped && !tty->hw_stopped) + if ((retval > 0) && !tty->stopped) set_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]); end: |