From 8193c4290620d9b2a6ac116719f11aa99053a90d Mon Sep 17 00:00:00 2001 From: Thomas Meyer Date: Wed, 5 Oct 2011 23:13:13 +0200 Subject: tty: Support compat_ioctl get/set termios_locked When running a Fedora 15 (x86) on an x86_64 kernel, in the boot process plymouthd complains about those two missing ioctls: [ 2.581783] ioctl32(plymouthd:186): Unknown cmd fd(10) cmd(00005457){t:'T';sz:0} arg(ffb6a5d0) on /dev/tty1 [ 2.581803] ioctl32(plymouthd:186): Unknown cmd fd(10) cmd(00005456){t:'T';sz:0} arg(ffb6a680) on /dev/tty1 both ioctl functions work on the 'struct termios' resp. 'struct termios2', which has the same size (36 bytes resp. 44 bytes) on x86 and x86_64, so it's just a matter of converting the pointer from userland. Signed-off-by: Thomas Meyer Cc: Arnd Bergmann Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_ioctl.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'drivers/tty/tty_ioctl.c') diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c index 53f2442c6099..9314d93c1a20 100644 --- a/drivers/tty/tty_ioctl.c +++ b/drivers/tty/tty_ioctl.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -1179,3 +1180,19 @@ int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file, } } EXPORT_SYMBOL(n_tty_ioctl_helper); + +#ifdef CONFIG_COMPAT +long n_tty_compat_ioctl_helper(struct tty_struct *tty, struct file *file, + unsigned int cmd, unsigned long arg) +{ + switch (cmd) { + case TIOCGLCKTRMIOS: + case TIOCSLCKTRMIOS: + return tty_mode_ioctl(tty, file, cmd, (unsigned long) compat_ptr(arg)); + default: + return -ENOIOCTLCMD; + } +} +EXPORT_SYMBOL(n_tty_compat_ioctl_helper); +#endif + -- cgit v1.2.1