mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-27 14:14:24 +08:00
Remove left-over unused bits.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
parent
260c96738c
commit
2e2849670a
@ -192,18 +192,6 @@ static void probe_sccs(void);
|
||||
static void change_speed(struct dec_serial *info);
|
||||
static void rs_wait_until_sent(struct tty_struct *tty, int timeout);
|
||||
|
||||
/*
|
||||
* tmp_buf is used as a temporary buffer by serial_write. We need to
|
||||
* lock it in case the copy_from_user blocks while swapping in a page,
|
||||
* and some other program tries to do a serial write at the same time.
|
||||
* Since the lock will only come under contention when the system is
|
||||
* swapping and available memory is low, it makes sense to share one
|
||||
* buffer across all the serial ports, since it significantly saves
|
||||
* memory if large numbers of serial ports are open.
|
||||
*/
|
||||
static unsigned char tmp_buf[4096]; /* This is cheating */
|
||||
static DECLARE_MUTEX(tmp_buf_sem);
|
||||
|
||||
static inline int serial_paranoia_check(struct dec_serial *info,
|
||||
char *name, const char *routine)
|
||||
{
|
||||
|
Loading…
Reference in New Issue
Block a user