xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tty: move some tty-only functions to drivers/tty/tty.h

Browse Source 
[ Upstream commit 9f72cab1596327e1011ab4599c07b165e0fb45db ]

The flow change and restricted_tty_write() logic is internal to the tty
core only, so move it out of the include/linux/tty.h file.

Cc: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20210408125134.3016837-12-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 094fb49a2d0d ("tty: Prevent writing chars during tcsetattr TCSADRAIN/FLUSH")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Greg Kroah-Hartman
2021-04-08 14:51:32 +02:00
parent 1924d47a28
commit 57b510c7d3
3 changed files with 18 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
include/linux/tty.h
View File

@@ -350,21 +350,6 @@ struct tty_file_private {
#define TTY_LDISC_CHANGING 20 /* Change pending - non-block IO */
#define TTY_LDISC_HALTED 22 /* Line discipline is halted */
/* Values for tty->flow_change */
#define TTY_THROTTLE_SAFE 1
#define TTY_UNTHROTTLE_SAFE 2
static inline void __tty_set_flow_change(struct tty_struct *tty, int val)
{
tty->flow_change = val;
}
static inline void tty_set_flow_change(struct tty_struct *tty, int val)
{
tty->flow_change = val;
smp_mb();
}
static inline bool tty_io_nonblock(struct tty_struct *tty, struct file *file)
{
return file->f_flags & O_NONBLOCK ||
@@ -395,7 +380,6 @@ extern const char *tty_name(const struct tty_struct *tty);
extern struct tty_struct *tty_kopen(dev_t device);
extern void tty_kclose(struct tty_struct *tty);
extern int tty_dev_name_to_number(const char *name, dev_t *number);
extern ssize_t redirected_tty_write(struct kiocb *, struct iov_iter *);
#else
static inline void tty_kref_put(struct tty_struct *tty)
{ }