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authorAlan Cox <alan@lxorguk.ukuu.org.uk>2008-04-30 00:54:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-30 08:29:47 -0700
commitf34d7a5b7010b82fe97da95496b9971435530062 (patch)
tree87e2abec1e33ed4fe5e63ee2fd000bc2ad745e57 /drivers/serial/kgdboc.c
parent251b8dd7eee30fda089a1dc088abf4fc9a0dee9c (diff)
downloadop-kernel-dev-f34d7a5b7010b82fe97da95496b9971435530062.zip
op-kernel-dev-f34d7a5b7010b82fe97da95496b9971435530062.tar.gz
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/serial/kgdboc.c')
-rw-r--r--drivers/serial/kgdboc.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/serial/kgdboc.c b/drivers/serial/kgdboc.c
index 9cf0332..eadc1ab 100644
--- a/drivers/serial/kgdboc.c
+++ b/drivers/serial/kgdboc.c
@@ -96,12 +96,14 @@ static void cleanup_kgdboc(void)
static int kgdboc_get_char(void)
{
- return kgdb_tty_driver->poll_get_char(kgdb_tty_driver, kgdb_tty_line);
+ return kgdb_tty_driver->ops->poll_get_char(kgdb_tty_driver,
+ kgdb_tty_line);
}
static void kgdboc_put_char(u8 chr)
{
- kgdb_tty_driver->poll_put_char(kgdb_tty_driver, kgdb_tty_line, chr);
+ kgdb_tty_driver->ops->poll_put_char(kgdb_tty_driver,
+ kgdb_tty_line, chr);
}
static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp)
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