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| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2008-04-30 00:54:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-30 08:29:47 -0700 |
| commit | f34d7a5b7010b82fe97da95496b9971435530062 (patch) | |
| tree | 87e2abec1e33ed4fe5e63ee2fd000bc2ad745e57 /drivers/bluetooth/hci_ldisc.c | |
| parent | 251b8dd7eee30fda089a1dc088abf4fc9a0dee9c (diff) | |
| download | linux-3.10-f34d7a5b7010b82fe97da95496b9971435530062.tar.gz linux-3.10-f34d7a5b7010b82fe97da95496b9971435530062.tar.bz2 linux-3.10-f34d7a5b7010b82fe97da95496b9971435530062.zip | |
tty: The big operations rework
- Operations are now a shared const function block as with most other Linux
objects
- Introduce wrappers for some optional functions to get consistent behaviour
- Wrap put_char which used to be patched by the tty layer
- Document which functions are needed/optional
- Make put_char report success/fail
- Cache the driver->ops pointer in the tty as tty->ops
- Remove various surplus lock calls we no longer need
- Remove proc_write method as noted by Alexey Dobriyan
- Introduce some missing sanity checks where certain driver/ldisc
combinations would oops as they didn't check needed methods were present
[akpm@linux-foundation.org: fix fs/compat_ioctl.c build]
[akpm@linux-foundation.org: fix isicom]
[akpm@linux-foundation.org: fix arch/ia64/hp/sim/simserial.c build]
[akpm@linux-foundation.org: fix kgdb]
Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/bluetooth/hci_ldisc.c')
| -rw-r--r-- | drivers/bluetooth/hci_ldisc.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c index 7e31d5f1bc8..a6c2619ec78 100644 --- a/drivers/bluetooth/hci_ldisc.c +++ b/drivers/bluetooth/hci_ldisc.c @@ -143,7 +143,7 @@ restart: int len; set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags); - len = tty->driver->write(tty, skb->data, skb->len); + len = tty->ops->write(tty, skb->data, skb->len); hdev->stat.byte_tx += len; skb_pull(skb, len); @@ -190,8 +190,7 @@ static int hci_uart_flush(struct hci_dev *hdev) /* Flush any pending characters in the driver and discipline. */ tty_ldisc_flush(tty); - if (tty->driver && tty->driver->flush_buffer) - tty->driver->flush_buffer(tty); + tty_driver_flush_buffer(tty); if (test_bit(HCI_UART_PROTO_SET, &hu->flags)) hu->proto->flush(hu); @@ -285,9 +284,7 @@ static int hci_uart_tty_open(struct tty_struct *tty) if (tty->ldisc.flush_buffer) tty->ldisc.flush_buffer(tty); - - if (tty->driver && tty->driver->flush_buffer) - tty->driver->flush_buffer(tty); + tty_driver_flush_buffer(tty); return 0; } @@ -374,8 +371,8 @@ static void hci_uart_tty_receive(struct tty_struct *tty, const u8 *data, char *f spin_unlock(&hu->rx_lock); if (test_and_clear_bit(TTY_THROTTLED, &tty->flags) && - tty->driver->unthrottle) - tty->driver->unthrottle(tty); + tty->ops->unthrottle) + tty->ops->unthrottle(tty); } static int hci_uart_register_dev(struct hci_uart *hu) |