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n_tty: Move n_tty_write_wakeup() to avoid forward declaration

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Prepare to special case pty flow control; avoid forward declaration.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley 2013-06-15 09:14:34 -04:00 committed by Greg Kroah-Hartman
parent 6367ca72f1
commit ee0bab83ce
1 changed files with 15 additions and 16 deletions
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31
drivers/tty/n_tty.c
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@ -214,6 +214,21 @@ static ssize_t chars_in_buffer(struct tty_struct *tty)
return n; return n;
} }
/**
* n_tty_write_wakeup - asynchronous I/O notifier
* @tty: tty device
*
* Required for the ptys, serial driver etc. since processes
* that attach themselves to the master and rely on ASYNC
* IO must be woken up
*/
static void n_tty_write_wakeup(struct tty_struct *tty)
{
if (tty->fasync && test_and_clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags))
kill_fasync(&tty->fasync, SIGIO, POLL_OUT);
}
static inline void n_tty_check_throttle(struct tty_struct *tty) static inline void n_tty_check_throttle(struct tty_struct *tty)
{ {
/* /*
@ -1458,22 +1473,6 @@ static inline void n_tty_receive_char(struct tty_struct *tty, unsigned char c)
put_tty_queue(c, ldata); put_tty_queue(c, ldata);
} }
/**
* n_tty_write_wakeup - asynchronous I/O notifier
* @tty: tty device
*
* Required for the ptys, serial driver etc. since processes
* that attach themselves to the master and rely on ASYNC
* IO must be woken up
*/
static void n_tty_write_wakeup(struct tty_struct *tty)
{
if (tty->fasync && test_and_clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags))
kill_fasync(&tty->fasync, SIGIO, POLL_OUT);
}
/** /**
* n_tty_receive_buf - data receive * n_tty_receive_buf - data receive
* @tty: terminal device * @tty: terminal device