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authorPaul Fulghum <paulkf@microgate.com>2007-05-10 22:22:50 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-11 08:29:35 -0700
commite10cc1df1d2014f68a4bdcf73f6dd122c4561f94 (patch)
treee528fde48ca3b09168d8879a57fb220195c4e8ea /include/linux/tty_driver.h
parent108f39a1b3b1e4b28ca8cc156f06171445499d21 (diff)
downloadop-kernel-dev-e10cc1df1d2014f68a4bdcf73f6dd122c4561f94.zip
op-kernel-dev-e10cc1df1d2014f68a4bdcf73f6dd122c4561f94.tar.gz
tty: add compat_ioctl
Add compat_ioctl method for tty code to allow processing of 32 bit ioctl calls on 64 bit systems by tty core, tty drivers, and line disciplines. Based on patch by Arnd Bergmann: http://www.uwsg.iu.edu/hypermail/linux/kernel/0511.0/1732.html [akpm@linux-foundation.org: make things static] Signed-off-by: Paul Fulghum <paulkf@microgate.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/tty_driver.h')
-rw-r--r--include/linux/tty_driver.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index 659487e..85c95cd 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -52,6 +52,11 @@
* This routine allows the tty driver to implement
* device-specific ioctl's. If the ioctl number passed in cmd
* is not recognized by the driver, it should return ENOIOCTLCMD.
+ *
+ * long (*compat_ioctl)(struct tty_struct *tty, struct file * file,
+ * unsigned int cmd, unsigned long arg);
+ *
+ * implement ioctl processing for 32 bit process on 64 bit system
*
* void (*set_termios)(struct tty_struct *tty, struct ktermios * old);
*
@@ -132,6 +137,8 @@ struct tty_operations {
int (*chars_in_buffer)(struct tty_struct *tty);
int (*ioctl)(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg);
+ long (*compat_ioctl)(struct tty_struct *tty, struct file * file,
+ unsigned int cmd, unsigned long arg);
void (*set_termios)(struct tty_struct *tty, struct ktermios * old);
void (*throttle)(struct tty_struct * tty);
void (*unthrottle)(struct tty_struct * tty);
@@ -193,6 +200,8 @@ struct tty_driver {
int (*chars_in_buffer)(struct tty_struct *tty);
int (*ioctl)(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg);
+ long (*compat_ioctl)(struct tty_struct *tty, struct file * file,
+ unsigned int cmd, unsigned long arg);
void (*set_termios)(struct tty_struct *tty, struct ktermios * old);
void (*throttle)(struct tty_struct * tty);
void (*unthrottle)(struct tty_struct * tty);
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