[PATCH 40/50] kill the rest of tty COMPAT_IOCTL() entries

From: Al Viro
Date: Wed Sep 12 2018 - 22:43:00 EST


From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

TIOCLINUX is handled by ->compat_ioctl() in the only place that has
native ->ioctl() recognizing it, TIOC{START,STOP} are simply useless
these days - unrecognized compat ioctl won't spew into syslog
anymore.

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
fs/compat_ioctl.c | 13 -------------
1 file changed, 13 deletions(-)

diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 2b35c6707e3d..ca2b51d9cb61 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -647,8 +647,6 @@ static unsigned int ioctl_pointer[] = {
COMPATIBLE_IOCTL(0x4B50) /* KDGHWCLK - not in the kernel, but don't complain */
COMPATIBLE_IOCTL(0x4B51) /* KDSHWCLK - not in the kernel, but don't complain */

-/* Big T */
-COMPATIBLE_IOCTL(TIOCLINUX)
/* Little t */
COMPATIBLE_IOCTL(TIOCOUTQ)
/* Little f */
@@ -1113,17 +1111,6 @@ COMPATIBLE_IOCTL(JSIOCGAXES)
COMPATIBLE_IOCTL(JSIOCGBUTTONS)
COMPATIBLE_IOCTL(JSIOCGNAME(0))

-#ifdef TIOCSTART
-/*
- * For these two we have definitions in ioctls.h and/or termios.h on
- * some architectures but no actual implemention. Some applications
- * like bash call them if they are defined in the headers, so we provide
- * entries here to avoid syslog message spew.
- */
-COMPATIBLE_IOCTL(TIOCSTART)
-COMPATIBLE_IOCTL(TIOCSTOP)
-#endif
-
/* fat 'r' ioctls. These are handled by fat with ->compat_ioctl,
but we don't want warnings on other file systems. So declare
them as compatible here. */
--
2.11.0