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tty: Eliminate global symbol tty_ldisc_N_TTY

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Reduce global tty symbols; move and rename tty_ldisc_begin() as
n_tty_init() and redefine the N_TTY ldisc ops as file scope.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley
2016-01-09 21:35:19 -08:00
committed by Greg Kroah-Hartman
parent d1d027eff5
commit 27228732aa
4 changed files with 10 additions and 13 deletions
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12
drivers/tty/n_tty.c
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@@ -2497,7 +2497,7 @@ static void n_tty_fasync(struct tty_struct *tty, int on)
}
}
struct tty_ldisc_ops tty_ldisc_N_TTY = {
static struct tty_ldisc_ops n_tty_ops = {
.magic = TTY_LDISC_MAGIC,
.name = "n_tty",
.open = n_tty_open,
@@ -2518,14 +2518,18 @@ struct tty_ldisc_ops tty_ldisc_N_TTY = {
* n_tty_inherit_ops - inherit N_TTY methods
* @ops: struct tty_ldisc_ops where to save N_TTY methods
*
* Enables a 'subclass' line discipline to 'inherit' N_TTY
* methods.
* Enables a 'subclass' line discipline to 'inherit' N_TTY methods.
*/
void n_tty_inherit_ops(struct tty_ldisc_ops *ops)
{
*ops = tty_ldisc_N_TTY;
*ops = n_tty_ops;
ops->owner = NULL;
ops->refcount = ops->flags = 0;
}
EXPORT_SYMBOL_GPL(n_tty_inherit_ops);
void __init n_tty_init(void)
{
tty_register_ldisc(N_TTY, &n_tty_ops);
}