From d852256389f1bcf506710ea5de77debde40013b9 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 5 Mar 2012 14:52:16 +0100 Subject: [PATCH] TTY: simserial/amiserial, use one instance of other members This means: * close_delay * closing_wait * line * port * xmit_fifo_size This actually fixes a bug in amiserial. It initializes one and uses the other of the close delays. Yes, duplicating structure members is evil. Signed-off-by: Jiri Slaby Cc: Geert Uytterhoeven Cc: Tony Luck Cc: Fenghua Yu Signed-off-by: Greg Kroah-Hartman --- arch/ia64/hp/sim/simserial.c | 9 +++------ drivers/tty/amiserial.c | 19 ++++++++----------- include/linux/serialP.h | 5 ----- 3 files changed, 11 insertions(+), 22 deletions(-) diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c index a08a53f033b..d32b759b23f 100644 --- a/arch/ia64/hp/sim/simserial.c +++ b/arch/ia64/hp/sim/simserial.c @@ -553,7 +553,7 @@ static void rs_close(struct tty_struct *tty, struct file * filp) } if (--state->count < 0) { printk(KERN_ERR "rs_close: bad serial port count for ttys%d: %d\n", - info->line, state->count); + state->line, state->count); state->count = 0; } if (state->count) { @@ -572,8 +572,8 @@ static void rs_close(struct tty_struct *tty, struct file * filp) tty_ldisc_flush(tty); info->tty = NULL; if (info->blocked_open) { - if (info->close_delay) - schedule_timeout_interruptible(info->close_delay); + if (state->close_delay) + schedule_timeout_interruptible(state->close_delay); wake_up_interruptible(&info->open_wait); } state->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); @@ -630,9 +630,6 @@ static int get_async_struct(int line, struct async_struct **ret_info) } init_waitqueue_head(&info->open_wait); init_waitqueue_head(&info->close_wait); - info->port = sstate->port; - info->xmit_fifo_size = sstate->xmit_fifo_size; - info->line = line; info->state = sstate; if (sstate->info) { kfree(info); diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index 8556ca022db..5540216e64f 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -723,7 +723,7 @@ static void change_speed(struct async_struct *info, if (!quot) quot = baud_base / 9600; info->quot = quot; - info->timeout = ((info->xmit_fifo_size*HZ*bits*quot) / baud_base); + info->timeout = ((info->state->xmit_fifo_size*HZ*bits*quot) / baud_base); info->timeout += HZ/50; /* Add .02 seconds of slop */ /* CTS flow control flag and modem status interrupts */ @@ -1425,7 +1425,7 @@ static void rs_close(struct tty_struct *tty, struct file * filp) } if (--state->count < 0) { printk("rs_close: bad serial port count for ttys%d: %d\n", - info->line, state->count); + state->line, state->count); state->count = 0; } if (state->count) { @@ -1439,8 +1439,8 @@ static void rs_close(struct tty_struct *tty, struct file * filp) * the line discipline to only process XON/XOFF characters. */ tty->closing = 1; - if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE) - tty_wait_until_sent(tty, info->closing_wait); + if (state->closing_wait != ASYNC_CLOSING_WAIT_NONE) + tty_wait_until_sent(tty, state->closing_wait); /* * At this point we stop accepting input. To do this, we * disable the receive line status interrupts, and tell the @@ -1470,8 +1470,8 @@ static void rs_close(struct tty_struct *tty, struct file * filp) tty->closing = 0; info->tty = NULL; if (info->blocked_open) { - if (info->close_delay) { - msleep_interruptible(jiffies_to_msecs(info->close_delay)); + if (state->close_delay) { + msleep_interruptible(jiffies_to_msecs(state->close_delay)); } wake_up_interruptible(&info->open_wait); } @@ -1492,7 +1492,7 @@ static void rs_wait_until_sent(struct tty_struct *tty, int timeout) if (serial_paranoia_check(info, tty->name, "rs_wait_until_sent")) return; - if (info->xmit_fifo_size == 0) + if (info->state->xmit_fifo_size == 0) return; /* Just in case.... */ orig_jiffies = jiffies; @@ -1505,7 +1505,7 @@ static void rs_wait_until_sent(struct tty_struct *tty, int timeout) * Note: we have to use pretty tight timings here to satisfy * the NIST-PCTS. */ - char_time = (info->timeout - HZ/50) / info->xmit_fifo_size; + char_time = (info->timeout - HZ/50) / info->state->xmit_fifo_size; char_time = char_time / 5; if (char_time == 0) char_time = 1; @@ -1700,9 +1700,6 @@ static int get_async_struct(int line, struct async_struct **ret_info) init_waitqueue_head(&info->close_wait); init_waitqueue_head(&info->delta_msr_wait); #endif - info->port = sstate->port; - info->xmit_fifo_size = sstate->xmit_fifo_size; - info->line = line; info->state = sstate; if (sstate->info) { kfree(info); diff --git a/include/linux/serialP.h b/include/linux/serialP.h index 6741f57cc2a..6ce488c4658 100644 --- a/include/linux/serialP.h +++ b/include/linux/serialP.h @@ -42,8 +42,6 @@ struct serial_state { }; struct async_struct { - unsigned long port; - int xmit_fifo_size; struct serial_state *state; struct tty_struct *tty; int read_status_mask; @@ -51,11 +49,8 @@ struct async_struct { int timeout; int quot; int x_char; /* xon/xoff character */ - int close_delay; - unsigned short closing_wait; int IER; /* Interrupt Enable Register */ int MCR; /* Modem control register */ - int line; int blocked_open; /* # of blocked opens */ struct circ_buf xmit; wait_queue_head_t open_wait; -- 2.41.0