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| author | Jiri Slaby <jirislaby@gmail.com> | 2007-02-10 01:45:15 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-11 10:51:28 -0800 |
| commit | 47c85c0db159bb0e5f8f5cb4ae7cc19a5c3359de (patch) | |
| tree | 78ab2ca0ac8552a6d80bba5f7f8d1e71e9690e61 | |
| parent | 98c47ea28a7d1b4a3fb003a805c312d5c977b1d2 (diff) | |
| download | linux-stable-47c85c0db159bb0e5f8f5cb4ae7cc19a5c3359de.tar.gz linux-stable-47c85c0db159bb0e5f8f5cb4ae7cc19a5c3359de.tar.bz2 linux-stable-47c85c0db159bb0e5f8f5cb4ae7cc19a5c3359de.zip | |
[PATCH] Char: mxser_new, remove tty_wakeup bottomhalf
It's safe to call tty_wakeup from irq context. Do not schedule it for later
calling.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/char/mxser_new.c | 26 |
1 files changed, 6 insertions, 20 deletions
diff --git a/drivers/char/mxser_new.c b/drivers/char/mxser_new.c index 4d4721e5c6ae..420d23f50206 100644 --- a/drivers/char/mxser_new.c +++ b/drivers/char/mxser_new.c @@ -269,7 +269,6 @@ struct mxser_port { struct mxser_mon mon_data; spinlock_t slock; - struct work_struct tqueue; wait_queue_head_t open_wait; wait_queue_head_t delta_msr_wait; }; @@ -355,15 +354,6 @@ static void process_txrx_fifo(struct mxser_port *info) } } -static void mxser_do_softint(struct work_struct *work) -{ - struct mxser_port *info = container_of(work, struct mxser_port, tqueue); - struct tty_struct *tty = info->tty; - - if (test_and_clear_bit(MXSER_EVENT_TXLOW, &info->event)) - tty_wakeup(tty); -} - static unsigned char mxser_get_msr(int baseaddr, int mode, int port) { unsigned char status = 0; @@ -607,8 +597,8 @@ static int mxser_change_speed(struct mxser_port *info, outb(info->IER, info->ioaddr + UART_IER); } - set_bit(MXSER_EVENT_TXLOW, &info->event); - schedule_work(&info->tqueue); } + tty_wakeup(info->tty); + } } else { if (!(status & UART_MSR_CTS)) { info->tty->hw_stopped = 1; @@ -703,7 +693,6 @@ static void mxser_check_modem_status(struct mxser_port *port, int status) if ((port->flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) { if (status & UART_MSR_DCD) wake_up_interruptible(&port->open_wait); - schedule_work(&port->tqueue); } if (port->flags & ASYNC_CTS_FLOW) { @@ -719,8 +708,7 @@ static void mxser_check_modem_status(struct mxser_port *port, int status) outb(port->IER, port->ioaddr + UART_IER); } - set_bit(MXSER_EVENT_TXLOW, &port->event); - schedule_work(&port->tqueue); + tty_wakeup(port->tty); } } else { if (!(status & UART_MSR_CTS)) { @@ -2220,10 +2208,9 @@ static void mxser_transmit_chars(struct mxser_port *port) port->mon_data.up_txcnt += (cnt - port->xmit_cnt); port->icount.tx += (cnt - port->xmit_cnt); - if (port->xmit_cnt < WAKEUP_CHARS) { - set_bit(MXSER_EVENT_TXLOW, &port->event); - schedule_work(&port->tqueue); - } + if (port->xmit_cnt < WAKEUP_CHARS) + tty_wakeup(port->tty); + if (port->xmit_cnt <= 0) { port->IER &= ~UART_IER_THRI; outb(port->IER, port->ioaddr + UART_IER); @@ -2400,7 +2387,6 @@ static int __devinit mxser_initbrd(struct mxser_board *brd, info->custom_divisor = info->baud_base * 16; info->close_delay = 5 * HZ / 10; info->closing_wait = 30 * HZ; - INIT_WORK(&info->tqueue, mxser_do_softint); info->normal_termios = mxvar_sdriver->init_termios; init_waitqueue_head(&info->open_wait); init_waitqueue_head(&info->delta_msr_wait); |