diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2016-01-10 06:35:19 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-01-28 00:13:28 +0100 |
| commit | 27228732aa94f3883433fab2f43eee373c638f2f (patch) | |
| tree | c6a9caea28f88c0f59da4071579ea7b4fbf4a7eb | |
| parent | tty: Unexport system-wide tty_mutex (diff) | |
| download | linux-27228732aa94f3883433fab2f43eee373c638f2f.tar.xz linux-27228732aa94f3883433fab2f43eee373c638f2f.zip | |
tty: Eliminate global symbol tty_ldisc_N_TTY
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>
| -rw-r--r-- | drivers/tty/n_tty.c | 12 | ||||
| -rw-r--r-- | drivers/tty/tty_io.c | 2 | ||||
| -rw-r--r-- | drivers/tty/tty_ldisc.c | 6 | ||||
| -rw-r--r-- | include/linux/tty.h | 3 |
4 files changed, 10 insertions, 13 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 90eca2605fbf..dae628f19912 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -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); +} diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index cb0a0c82279b..798acb690092 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -3576,7 +3576,7 @@ void __init console_init(void) initcall_t *call; /* Setup the default TTY line discipline. */ - tty_ldisc_begin(); + n_tty_init(); /* * set up the console device so that later boot sequences can diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c index 4cb5e572c7b8..68947f6de5ad 100644 --- a/drivers/tty/tty_ldisc.c +++ b/drivers/tty/tty_ldisc.c @@ -824,9 +824,3 @@ void tty_ldisc_deinit(struct tty_struct *tty) tty_ldisc_put(tty->ldisc); tty->ldisc = NULL; } - -void tty_ldisc_begin(void) -{ - /* Setup the default TTY line discipline. */ - (void) tty_register_ldisc(N_TTY, &tty_ldisc_N_TTY); -} diff --git a/include/linux/tty.h b/include/linux/tty.h index 95e52c6b9696..f6c07fd12ef4 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -576,7 +576,6 @@ extern int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty); extern void tty_ldisc_release(struct tty_struct *tty); extern void tty_ldisc_init(struct tty_struct *tty); extern void tty_ldisc_deinit(struct tty_struct *tty); -extern void tty_ldisc_begin(void); static inline int tty_ldisc_receive_buf(struct tty_ldisc *ld, unsigned char *p, char *f, int count) @@ -593,8 +592,8 @@ static inline int tty_ldisc_receive_buf(struct tty_ldisc *ld, unsigned char *p, /* n_tty.c */ -extern struct tty_ldisc_ops tty_ldisc_N_TTY; extern void n_tty_inherit_ops(struct tty_ldisc_ops *ops); +extern void __init n_tty_init(void); /* tty_audit.c */ #ifdef CONFIG_AUDIT |