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staging: dgnc: Fix lines longer than 80 characters 

For two cases (beginning and end of the patch) I opted to create small
functions instead of breaking the the lines in a weird way.

The other changes are simple ones: either by breaking the line when
appropriate or by turning a comment into a multi-line one.

Signed-off-by: Fernando Apesteguia <fernando.apesteguia@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Fernando Apesteguia 2016-12-06 18:07:35 +01:00 committed by Greg Kroah-Hartman
parent 1100a3b0ac
commit 9b33f918c0
1 changed files with 38 additions and 24 deletions
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62
drivers/staging/dgnc/dgnc_tty.c
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@ -102,6 +102,8 @@ static int dgnc_tty_write(struct tty_struct *tty, const unsigned char *buf,
static void dgnc_tty_set_termios(struct tty_struct *tty,
struct ktermios *old_termios);
static void dgnc_tty_send_xchar(struct tty_struct *tty, char ch);
static void dgnc_set_signal_low(struct channel_t *ch, const unsigned char line);
static void dgnc_wake_up_unit(struct un_t *unit);
static const struct tty_operations dgnc_tty_ops = {
.open = dgnc_tty_open,
@ -784,6 +786,12 @@ void dgnc_check_queue_flow_control(struct channel_t *ch)
}
}
static void dgnc_set_signal_low(struct channel_t *ch, const unsigned char sig)
{
ch->ch_mostat &= ~(sig);
ch->ch_bd->bd_ops->assert_modem_signals(ch);
}
void dgnc_wakeup_writes(struct channel_t *ch)
{
int qlen = 0;
@ -821,19 +829,15 @@ void dgnc_wakeup_writes(struct channel_t *ch)
* If RTS Toggle mode is on, whenever
* the queue and UART is empty, keep RTS low.
*/
if (ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE) {
ch->ch_mostat &= ~(UART_MCR_RTS);
ch->ch_bd->bd_ops->assert_modem_signals(ch);
}
if (ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE)
dgnc_set_signal_low(ch, UART_MCR_RTS);
/*
* If DTR Toggle mode is on, whenever
* the queue and UART is empty, keep DTR low.
*/
if (ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE) {
ch->ch_mostat &= ~(UART_MCR_DTR);
ch->ch_bd->bd_ops->assert_modem_signals(ch);
}
if (ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE)
dgnc_set_signal_low(ch, UART_MCR_DTR);
}
}
@ -967,8 +971,9 @@ static int dgnc_tty_open(struct tty_struct *tty, struct file *file)
* touched safely, the close routine will signal the
* ch_flags_wait to wake us back up.
*/
rc = wait_event_interruptible(ch->ch_flags_wait, (((ch->ch_tun.un_flags |
ch->ch_pun.un_flags) & UN_CLOSING) == 0));
rc = wait_event_interruptible(ch->ch_flags_wait,
(((ch->ch_tun.un_flags |
ch->ch_pun.un_flags) & UN_CLOSING) == 0));
/* If ret is non-zero, user ctrl-c'ed us */
if (rc)
@ -1184,11 +1189,12 @@ static int dgnc_block_til_ready(struct tty_struct *tty,
*/
if (sleep_on_un_flags)
retval = wait_event_interruptible
(un->un_flags_wait, (old_flags != (ch->ch_tun.un_flags |
ch->ch_pun.un_flags)));
(un->un_flags_wait,
(old_flags != (ch->ch_tun.un_flags |
ch->ch_pun.un_flags)));
else
retval = wait_event_interruptible(ch->ch_flags_wait,
(old_flags != ch->ch_flags));
(old_flags != ch->ch_flags));
/*
* We got woken up for some reason.
@ -2320,6 +2326,17 @@ static void dgnc_tty_flush_buffer(struct tty_struct *tty)
spin_unlock_irqrestore(&ch->ch_lock, flags);
}
/*
* dgnc_wake_up_unit()
*
* Wakes up processes waiting in the unit's (teminal/printer) wait queue
*/
static void dgnc_wake_up_unit(struct un_t *unit)
{
unit->un_flags &= ~(UN_LOW | UN_EMPTY);
wake_up_interruptible(&unit->un_flags_wait);
}
/* The IOCTL function and all of its helpers */
/*
@ -2502,17 +2519,11 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
ch->ch_w_head = ch->ch_w_tail;
ch_bd_ops->flush_uart_write(ch);
if (ch->ch_tun.un_flags & (UN_LOW | UN_EMPTY)) {
ch->ch_tun.un_flags &=
~(UN_LOW | UN_EMPTY);
wake_up_interruptible(&ch->ch_tun.un_flags_wait);
}
if (ch->ch_tun.un_flags & (UN_LOW | UN_EMPTY))
dgnc_wake_up_unit(&ch->ch_tun);
if (ch->ch_pun.un_flags & (UN_LOW | UN_EMPTY)) {
ch->ch_pun.un_flags &=
~(UN_LOW | UN_EMPTY);
wake_up_interruptible(&ch->ch_pun.un_flags_wait);
}
if (ch->ch_pun.un_flags & (UN_LOW | UN_EMPTY))
dgnc_wake_up_unit(&ch->ch_pun);
}
}
@ -2731,7 +2742,10 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
buf.rxbuf = (ch->ch_r_head - ch->ch_r_tail) & RQUEUEMASK;
buf.txbuf = (ch->ch_w_head - ch->ch_w_tail) & WQUEUEMASK;
/* Is the UART empty? Add that value to whats in our TX queue. */
/*
* Is the UART empty?
* Add that value to whats in our TX queue.
*/
count = buf.txbuf + ch_bd_ops->get_uart_bytes_left(ch);