diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2015-01-25 22:44:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-02-02 21:11:28 +0300 |
| commit | 632f32e2107d37598e3f6816dcf00c7cab4081ca (patch) | |
| tree | b706ec2b89cc27832f19caff0c50bc500cab252e | |
| parent | 348f9bb31c56909f9098a598b6ecdc94a560816e (diff) | |
| download | linux-632f32e2107d37598e3f6816dcf00c7cab4081ca.tar.xz | |
tty: Remove external interface for tty_set_termios()
tty_set_termios() is an internal helper intended for file scope use.
UART drivers which are capable of driving the RTS pin must
properly handle the tiocmset() method, regardless of termios settings.
A failure to do so is a UART driver bug and should be fixed there.
Do not use this interface to workaround UART driver bugs.
Cc: Johan Hedberg <johan.hedberg@gmail.com>
Cc: <linux-bluetooth@vger.kernel.org>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/bluetooth/hci_ath.c | 15 | ||||
| -rw-r--r-- | drivers/tty/tty_ioctl.c | 3 | ||||
| -rw-r--r-- | include/linux/tty.h | 1 |
3 files changed, 3 insertions, 16 deletions
diff --git a/drivers/bluetooth/hci_ath.c b/drivers/bluetooth/hci_ath.c index 2ff6dfd2d3f0..9c4dcf4c62ea 100644 --- a/drivers/bluetooth/hci_ath.c +++ b/drivers/bluetooth/hci_ath.c @@ -51,33 +51,22 @@ struct ath_struct { static int ath_wakeup_ar3k(struct tty_struct *tty) { - struct ktermios ktermios; int status = tty->driver->ops->tiocmget(tty); if (status & TIOCM_CTS) return status; - /* Disable Automatic RTSCTS */ - ktermios = tty->termios; - ktermios.c_cflag &= ~CRTSCTS; - tty_set_termios(tty, &ktermios); - /* Clear RTS first */ - status = tty->driver->ops->tiocmget(tty); + tty->driver->ops->tiocmget(tty); tty->driver->ops->tiocmset(tty, 0x00, TIOCM_RTS); mdelay(20); /* Set RTS, wake up board */ - status = tty->driver->ops->tiocmget(tty); + tty->driver->ops->tiocmget(tty); tty->driver->ops->tiocmset(tty, TIOCM_RTS, 0x00); mdelay(20); status = tty->driver->ops->tiocmget(tty); - - /* Enable Automatic RTSCTS */ - ktermios.c_cflag |= CRTSCTS; - status = tty_set_termios(tty, &ktermios); - return status; } diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c index 1787fa4d9448..a5cf253b2544 100644 --- a/drivers/tty/tty_ioctl.c +++ b/drivers/tty/tty_ioctl.c @@ -530,7 +530,7 @@ EXPORT_SYMBOL(tty_termios_hw_change); * Locking: termios_rwsem */ -int tty_set_termios(struct tty_struct *tty, struct ktermios *new_termios) +static int tty_set_termios(struct tty_struct *tty, struct ktermios *new_termios) { struct ktermios old_termios; struct tty_ldisc *ld; @@ -563,7 +563,6 @@ int tty_set_termios(struct tty_struct *tty, struct ktermios *new_termios) up_write(&tty->termios_rwsem); return 0; } -EXPORT_SYMBOL_GPL(tty_set_termios); /** * set_termios - set termios values for a tty diff --git a/include/linux/tty.h b/include/linux/tty.h index fe5623c9af71..358a337af598 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -491,7 +491,6 @@ static inline speed_t tty_get_baud_rate(struct tty_struct *tty) extern void tty_termios_copy_hw(struct ktermios *new, struct ktermios *old); extern int tty_termios_hw_change(struct ktermios *a, struct ktermios *b); -extern int tty_set_termios(struct tty_struct *tty, struct ktermios *kt); extern struct tty_ldisc *tty_ldisc_ref(struct tty_struct *); extern void tty_ldisc_deref(struct tty_ldisc *); |