author: Maciej W. Rozycki <macro@linux-mips.org> 2005-06-16 20:49:03 +0000
committer: Ralf Baechle <ralf@linux-mips.org> 2005-10-29 19:31:27 +0100
commit: 2e2849670a740128307a770dd8b5213c31081cf2
parent: 260c96738cf30f489108cd0fb3f10dcd11cbb5ca
Commit Summary:
Diffstat:
1 file changed, 0 insertions, 12 deletions
diff --git a/drivers/tc/zs.c b/drivers/tc/zs.c
index a5dab1ac568c..0e302ae5924c 100644
--- a/drivers/tc/zs.c
+++ b/drivers/tc/zs.c
@@ -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)
{