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authorAlan Cox <alan@redhat.com>2007-11-07 01:24:56 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2007-11-07 04:14:19 -0800
commit0fc00e2440b717e19bab1ae0015f03936bdf7967 (patch)
tree4ae26ce4c71511fad3bad97384dce22a69c16bb6 /include/linux
parent543821c6f5dea5221426eaf1eac98b100249c7ac (diff)
[TTY]: Fix network driver interactions with TCGET/SET calls.
Dave Miller noted various cases where line disciplines for things like ppp go poking around in termios themselves in ways that broke with the new termios code. Rather than have them all learning about termios internals provide proper methods for this - tty_mode_ioctl() This handles all the terminal mode handling for speed/carrier etc and none of the methods are ldisc dependant so they can be called by any user - tty_perform_flush() This extracts the flush functionality and enables pppd the ppp layer to share it cleanly. The existing n_tty_ioctl code is refactored in this patch to provide the new functions and to call them itself appropriately. This patch has no (intended) behaviour changes and simply prepares for the other fixes. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/tty.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 56164d7ba0a..c555f5442bd 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -332,7 +332,9 @@ extern void tty_ldisc_flush(struct tty_struct *tty);
extern int tty_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg);
-
+extern int tty_mode_ioctl(struct tty_struct *tty, struct file *file,
+ unsigned int cmd, unsigned long arg);
+extern int tty_perform_flush(struct tty_struct *tty, unsigned long arg);
extern dev_t tty_devnum(struct tty_struct *tty);
extern void proc_clear_tty(struct task_struct *p);
extern struct tty_struct *get_current_tty(void);